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Analog Demodulation

R&S

FPC

149

User Manual 1178.4130.02 ─ 07

Figure 16-2: Numerical results for an AM signal, including limit evaluation

For each aspect, the R&S

FPC shows the measured "Result", and, if you are using

limits

, the "Upper Limit" and "Lower Limit" value you have defined, including the "Sta-

tus" of the limit check ("Pass" or "Fail").

The following results are evaluated:

●

Carrier Freq Offset

Shows the deviation of the calculated carrier frequency to the ideal carrier fre-
quency in Hz.

●

Carrier Power

Shows the power of the carrier without modulation in dBm.

●

Freq Deviation

(FM domain)

Shows the frequency deviation that the carrier signal is modulated with.

●

Modulation Rate

(FM domain)

Shows the ratio of the frequency deviation and the reference deviation.

●

Modulation Depth

(AM domain)

●

Shows the difference in amplitude the carrier signal is modulated with.

●

+Peak

-Peak

Shows the minimum and maximum frequency deviation (FM signals) or modulation
depth (AM signals).

● ±

Peak/2

Shows the average frequency deviation (FM signals) or modulation depth (AM sig-
nals).
(| +Peak | + | -Peak |) / 2

●

RMS

Shows the root mean square of the frequency deviation (FM signals) or modulation
depth (AM signals).

●

Modulation Frequency

Shows the modulation frequency.

●

SINAD

Shows the signal-to-noise-and-distortion

Measurements and Result Displays

Содержание FPC Series

Страница 1: ...R S FPC Spectrum Analyzer User Manual User Manual Version 07 1178413002 ÜYN2 ...

Страница 2: ... 6760 02 The contents of this manual correspond to firmware version 1 40 and later 2018 Rohde Schwarz GmbH Co KG Mühldorfstr 15 81671 München Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 Email info rohde schwarz com Internet www rohde schwarz com Subject to change Data without tolerance limits is not binding R S is a registered trademark of Rohde Schwarz GmbH Co KG Trade names are trademarks...

Страница 3: ... Instructions and the product documentation in a safe place and pass them on to the subsequent users Riesgo de lesiones y daños en el instrumento El instrumento se debe usar de manera adecuada para prevenir descargas eléctricas incendios lesiones o daños materiales No abrir la carcasa del instrumento Lea y cumpla las Instrucciones de seguridad elementales suministradas con el instrumento como foll...

Страница 4: ...die Produktdokumentation gut auf und geben Sie diese an weitere Benutzer des Produkts weiter Risque de blessures et d endommagement de l appareil L appareil doit être utilisé conformément aux prescriptions afin d éviter les électrocutions incendies dommages corporels et matériels N ouvrez pas le boîtier de l appareil Lisez et respectez les consignes de sécurité fondamentales fournies avec l appare...

Страница 5: ...rument up to date and to be informed about new application notes related to your instrument please send an e mail to the Customer Support Center stating your instrument and your wish We will take care that you will get the right information Europe Africa Middle East Phone 49 89 4129 12345 customersupport rohde schwarz com North America Phone 1 888 TEST RSA 1 888 837 8772 customer support rsa rohde...

Страница 6: ... and off 13 4 Instrument Tour 15 4 1 Front Panel 15 4 2 Rear Panel 17 5 Operation 19 5 1 Manual Operation 19 5 2 Screen Layout 22 5 3 Remote Operation 25 6 Firmware Update 32 7 Firmware Options 34 8 Preset 37 9 Instrument Setup 39 9 1 BNC Connector Usage 39 9 2 Network Configuration 39 9 3 Date and Time 41 9 4 Regional Settings 42 9 5 Display Settings 43 9 6 Audio Settings 43 9 7 Power Settings 44...

Страница 7: ... 125 14 11 Display Lines 129 14 12 Limit Lines 130 15 The Receiver Application 134 15 1 Measurements and Result Displays 134 15 2 Frequency Configuration 138 15 3 Amplitude Configuration 142 15 4 Bandwidth Configuration 143 15 5 Sweep Configuration 144 15 6 Trace Configuration 144 15 7 Limit Lines 145 15 8 Marker Configuration 145 16 Analog Demodulation 147 16 1 Measurements and Result Displays 14...

Страница 8: ...figuration 184 18 8 Limit Line Configuration 186 19 Remote Control 187 19 1 Remote Control Basics 187 19 2 Common Commands 202 19 3 Preset 206 19 4 Network Connection 207 19 5 System Configuration 209 19 6 Display Settings 215 19 7 Audio Settings 215 19 8 Data Management 216 19 9 Signal Source Configuartion 226 19 10 Calibration 228 19 11 Applications 231 19 12 Remote Commands of the Spectrum Appl...

Страница 9: ... Management 358 20 3 Function Reference Mode Selection 359 20 4 Function Reference Spectrum Application 360 20 5 Function Reference Receiver Application 377 20 6 Function Reference Analog Demodulation 387 20 7 Function Reference Digital Demodulation 391 20 8 Function Reference Vector Network Analyzer 395 List of Commands 406 Index 413 ...

Страница 10: ...l format of the user manual provides the complete contents for immediate display on the internet The user manual is also integrated into the firmware chm format You can export the file to a memory stick Setup User Preferences Export Documentation After the export you can connect the memory stick to a PC and read the chm file Service manual Describes the performance test for checking the rated spec...

Страница 11: ...ferences Export Doc umentation After the export you can connect the memory stick to a PC and read the chm file Application notes application cards white papers etc These documents contain information about possible applications and background information on various topics see www rohde schwarz com appnotes Calibration certificates The calibration certificates of your device are available online Vi...

Страница 12: ...ation You can access the regulatory information in the firmware of the R S FPC 1 Press the Setup key The R S FPC opens the Instrument Setup menu 2 Select the Regulatory Information menu item in the WiFi category with the Enter key The R S FPC shows the regulations it complies with ...

Страница 13: ...ons provided with the instrument in addition to the safety instructions in the following sections In particular Do not open the instrument casing Risk of instrument damage due to inappropriate operating conditions Specific operating conditions are required to ensure accurate measurements and to avoid damage to the instrument Observe the information on appropriate operating conditions provided in t...

Страница 14: ...connected and are not overloaded EMI impact on measurement results Electromagnetic interference EMI may affect the measurement results To suppress generated electromagnetic interference EMI Use suitable shielded cables of high quality For example use double shielded RF and LAN cables Always terminate open cable ends Note the EMC classification in the data sheet 3 1 Unpacking and Checking the Instr...

Страница 15: ...event any movement and other mechanical effects dur ing transportation Packing material Retain the original packing material If the instrument needs to be transported or ship ped later you can use the material to protect the control elements and connectors 3 2 Placing or Mounting the Instrument The R S FPC is designed for use under laboratory conditions either on a bench top or in a rack Benchtop ...

Страница 16: ...nnector on the rear panel of the R S FPC allows you to connect it to the primary power supply Included in the delivery of the R S FPC are several common power plug types 1 Select the cable with the plug type you need and firmly connect it to the R S FPC 2 Connect the AC plug to the power outlet to supply the R S FPC with power The R S FPC is assembled in line with the specifications for safety cla...

Страница 17: ... FPC Turn off the main AC power switch on the rear panel of the R S FPC position O The instrument is no longer supplied with AC power Changing the AC supply fuse Only fuses of the type 2A T IEC60127 2 V should be used 1 Disconnect the power cable 2 Open the flap covering the voltage selector using a small screwdriver or similar 3 Remove the cylinder labeled with the nominal voltages Remove the fus...

Страница 18: ...wer switch Instrument damage caused by cleaning agents Cleaning agents contain substances such as solvents thinners acetone etc acids bases or other substances Solvents can damage the front panel labeling plastic parts or screens for example Never use cleaning agents to clean the outside of the instrument Use a soft dry lint free dust cloth instead Power switch The power switch turns the R S FPC o...

Страница 19: ...e output allows you to generate a signal that can be fed into the DUT or other external accessories like frequency dividers or amplifiers You can con nect the DUT or accessories with a cable that has a male N connector Risk of instrument damage The maximum supported reverse power is 23 dBm Make sure that this value is not exceeded to avoid damage to the R S FPC Headphone jack The female headphone ...

Страница 20: ...a comprehensive description of the function keys Softkeys The softkeys allow you to access measurement settings and functions Softkeys are dynamic A different list of softkeys is displayed depending on the selected function key A list of softkeys for a certain function key is also called a menu Softkeys can either perform a specific function or open a dialog box Refer to the user manual for a comp...

Страница 21: ...rements with an external trigger For more information about triggered measurements refer to the user manual Alternatively you can use the connector to connect a 10 MHz reference signal to syn chronize the frequency with the external reference Note that the reference signal must be stronger than 0 dBm LAN The LAN interface allows you to connect the R S FPC to a local network for remote control prin...

Страница 22: ...figure the frequency characteristics of the measurement The contents of the menu depend on the measurement application that you are using For example the Frequency menu in the spectrum application looks different than the Frequency menu of the analog demodulation application Exceptions are the Preset key and the camera key These do not open a menu but initiate an action performing a preset and tak...

Страница 23: ...ally belong together A softkey that opens a submenu shows an arrow in its label Example Pressing the Freq key opens the Frequency menu The second soft key in the list Center Freq Step Size opens a submenu Figure 5 4 Softkey with an arrow opens a submenu It initiates some kind of action Example Pressing the Span key and selecting the Full Span menu item restores the full frequency span It changes t...

Страница 24: ... character If you need to enter a character press the key several times until the character you require is selected Example Press the Freq key and select the User Preference menu item In the dialog box select the Site Name menu item and enter some characters for Home for example press 6x 4 3x 6 1x 6 and 2x 9 An empty space or special characters like _ are available by pressing the 0 key several ti...

Страница 25: ...oxes In that case you can navi gate to one of the items with the rotary knob If the dialog box covers more than one screen page it also scrolls through the dialog box Turning it to the right corresponds to a downward movement Moving it to the left to an upward movement The rotary knob increases or decreases any kind of numeric value if an input field is active Turning it to the right corresponds t...

Страница 26: ...plication that you are currently using as well as the date and time Input field An input field opens when you select a feature that requires you to enter a value The header of the input field shows the name of the softkey menu you have currently selected If no input field is open the R S FPC just shows the name of the softkey menu you have currently selected Softkey menu Softkeys provide access to...

Страница 27: ...ax Max hold trace mode Min Min hold trace mode Avg Average trace mode View View trace mode No label Blank trace mode trace is off Table 5 2 Overview of detectors Abbreviation Detector AP Auto peak detector Pk Max peak detector Mi Min peak detector Rm RMS detector Sa Sample detector QP Quasipeak detector receiver only Marker information The marker information indicates the position of each active m...

Страница 28: ...ion There are various tools that allow you to operate the R S FPC remotely from another computer for example PC or tablet To use the R S FPC this way you have to establish a connection between both devi ces via the LAN Wi Fi or USB interfaces of the R S FPC Remote desktop R S InstrumentView R S InstrumentView is a software that contains various useful tools including a remote desktop application Y...

Страница 29: ...e Android based devices or the AppStore iOS devices A search for Rohde Schwarz MobileView should find the app 1 Start the R S FPC 2 Configure your tablet or phone as a hotspot for an ad hoc connection usually in the phone settings 3 Connect the R S FPC to the mobile device a Press the Setup key to open the instrument setup menu b Select WiFi On to turn on the Wi Fi functionality c Select the Conne...

Страница 30: ...PI command Example The SCPI command to change the center frequency is SENSe FREQuency CENTer When you send a succession of these commands you can configure and perform complete measurements There are several tools that allow you to connect to an instrument send an individual or more command s and compile automated test sequences One of these tools is delivered with the R S VISA library that is ava...

Страница 31: ...dentity command queries information about the connected product In this case it should return a string similar to this Rohde Schwarz FPC1000 1328 6660K02 111111 1 00 Query button whenever you want to retrieve information from the instrument query use this button Tip See Chapter 19 1 Remote Control Basics on page 187 for a comprehen sive description about the remote command syntax and the ways you ...

Страница 32: ...nd The SENSe FREQuency CENTer command changes the center frequency of the R S FPC After a preset the center frequency is half of the supported frequency range 500 MHz for 1 GHz instruments When you send the command the center frequency changes to 100 MHz You can observe this change on the instrument display 9 Send the command again this time as a query To query the state of a setting add a questio...

Страница 33: ...nds to measure the spectrum around the center fre quency of 100 MHz a initiate continuous off This command selects single sweep mode recommended for remote measure ments b initiate immediate wai You can write two commands into one command line but have to separate them with a semicolon The first command INITiate IMMediate ini tiates the measurement The second command wai instructs the program to w...

Страница 34: ...and paste it into a text file spreadsheet etc for further evaluation There are also SCPI commands that auto matically copy that data into a file so you do not have to do that manually Tip Logging commands You can save all commands you have sent with RsVisa Tester into a log file txt file type and reuse it later on To do so turn on the Write Log feature and select a folder to save the file in Chang...

Страница 35: ...hat data but it is recommended to perform a factory reset after the firmware update to update predefined limit lines channel tables etc The factory reset however does delete user data 1 Download the firmware installer from the internet The firmware comes in a single exe file 2 Save the file to the root directory of a memory stick 3 Run the exe file to unpack the self extracting zip archive The fol...

Страница 36: ...FPC shows a message when the firmware update is done Note Do not turn off the R S FPC during the firmware update 10 Turn off the R S FPC 11 Turn on the R S FPC The R S FPC boots with the new firmware version 12 Optional It is recommended to perform a factory reset after a firmware update to replace the predefined limit lines channel tables and other data with the latest updates Note Before you sta...

Страница 37: ...meric keys and confirm the entry with the Enter key The license key is a 32 digit number The R S FPC confirms a successful installation If the R S FPC shows an Invalid Key Code message try to enter the license key again Using the R S LicenseManager online registration You can use the R S License Manager to manage options with a web browser Micro soft Internet Explorer Mozilla Firefox etc from a PC...

Страница 38: ...ave purchased an unregistered license Unregistered licenses are not linked to a specific device ID Reboot Device Follow this link to reboot the R S FPC Opens an online help of the corresponding topic The third area provides hints on using the license manager when you move the mouse over one of the options The R S License Manager also provides functionality to managed licenses of options that you h...

Страница 39: ...is link if you want to move a portable license Moving a portable license is possible without unregistering the license Opens an online help of the corresponding topic The second area provides hints on using the license manager when you move the mouse over one of the options After you have followed one of the links follow the instructions displayed in the web browser If you encounter any issues dur...

Страница 40: ...lts 2 Press the Setup key to open the setup menu 3 Select the User Preference menu item to open the user preference dialog box 4 Select the Preset Mode menu item to select the preset mode Default Restores the factory default configuration User Restores custom default values taken from a dataset In that case you have to select a dataset that contains the default values 5 Select the Preset Dataset m...

Страница 41: ... 02 07 2 Select the Instrument Setup menu item to open the setup menu 3 Select the Reset To Factory Settings menu item The R S FPC initiates the reset process and will ask you to confirm the reset When you select Yes the system will be reset ...

Страница 42: ...e BNC connector usage 1 Press the Setup key to open the setup menu 2 Select the Instrument Setup menu item to open the instrument setup dialog box 3 Select the BNC menu item in the Hardware category 4 Select one of the menu items Trigger Input You can connect an external trigger source and trigger measurements Reference Input You can connect an external frequency reference and synchronize the fre ...

Страница 43: ... automatically allocates the network prop erties IP address subnet mask and gateway 1 Press the Setup key to open the setup menu 2 Select the Instrument Setup menu item to open the instrument setup dialog box 3 Select the DHCP menu item in the LAN category 4 Select On to activate DHCP The R S FPC automatically writes the network properties in the corresponding fields IP Address Subnet Mask and Gat...

Страница 44: ...red Using an open Wi Fi poses security risks however so be cautious when connecting to an open Wi Fi 6 Enter the password of the Wi Fi network Tip Regulatory information You can view all regulations the R S FPC complies with by selecting the Regulatory Information menu item 9 3 Date and Time Remote commands required to configure the date and time Chapter 19 5 System Configuration on page 209 The R...

Страница 45: ...the time offset you want with the numeric keys Note We recommended that you select the time zone before you define the sys tem time 9 4 Regional Settings Remote commands required to configure regional settings Chapter 19 5 System Configuration on page 209 Selecting the user interface language The R S FPC supports several user interface languages When you change the lan guage all user interface ele...

Страница 46: ...d to configure the display Chapter 19 6 Display Settings on page 215 Adjusting the display backlight The display backlight defines the brightness of the display You can adjust the backlight intensity of the display to get a good viewing experience depending on the lighting conditions of your surroundings 1 Press the Setup key to open the setup menu 2 Select the Instrument Setup menu item to open t...

Страница 47: ...pen the instrument setup dialog box 3 Select the System Beeper Volume menu item in the Audio category 4 Select the volume that you prefer The volume is a percentage from 0 to 100 with 100 being the loudest Turning audio output in case of a power overload on and off If the R S FPC detects an overload at one of its inputs you can configure it to make a sound 1 Press the Setup key to open the setup m...

Страница 48: ...4130 02 07 On The R S FPC automatically boots when you use the main power switch on the rear panel Off After using the main power switch the R S FPC is in stand by mode You have to turn it on with the power button on the front panel Power Settings ...

Страница 49: ...easurement or analysis tools that you usually apply to measurement and that have an effect on the measurement results A typical template that you might use regularly is a limit line or transducer factor The R S FPC already provides several predefined templates If you need to create custom templates you have to use the R S InstrumentView software package Templates come in different forms and format...

Страница 50: ... manager Save Recall File Manager The free disk space is indica ted at the top of the dialog box Folder structure of the internal memory The internal memory has a given folder structure Basically each data type has its own designated folder For example there is a folder labeled Channel Tables that contains all channel tables that are delivered with the firmware Another folder is labeled Datasets t...

Страница 51: ...d only files If a file is labeled with a lock symbol in the Stat column of the file manager it is read only and therefore cannot be edited You can remove the read only attribute in several ways Connect the R S FPC to a PC and start the R S InstrumentView software In the software start Instrument File Transfer select a file and lock or unlock the file with the Lock feature Copy the file to a comput...

Страница 52: ...s meta information in datasets that you save This meta informa tion is then included in measurement reports that you create with the R S Instrument View software 1 Press the Setup key to open the setup menu 2 Select the User Preferences menu item 3 Select one of the items in the Site category Site Name Enter the location where the measurement takes place User Enter the name of person who does the ...

Страница 53: ...elect the Recall menu item to open the file manager When you restore a dataset the R S FPC automatically opens the Datasets folder 3 If you want to restore the dataset from a different folder or an external memory device navigate to the folder with the dataset 4 Confirm your selection with the Load menu item Previewing a dataset Before you restore a dataset you can preview the dataset This can be ...

Страница 54: ...he User Preference to open the user preference menu 3 Select the Default Filename menu item to change the default filename Enter any filename you like with the alphanumeric keys for example Screenshot Every screenshot that you take from now on will have that name 4 Select the Filename Counter Starts At menu item to change the numbering of screenshots Enter any number you like with the alphanumeric...

Страница 55: ...gnal is a continuous wave signal whose frequency remains the same through out the measurement CW Coupled The output signal is a continuous wave signal whose frequency is coupled to the center frequency When you change the center frequency the R S FPC adjusts the output signal accordingly Tracking Generator The output signal is a continuous wave signal whose frequency is coupled to the measurement ...

Страница 56: ...r DUT Make sure that the DUT can handle the signal power that you output via the signal source Power levels that are too high can damage the DUT Make also sure that the reflected power does not exceed 20 dBm Power levels higher than that can damage or destroy the signal source output 1 Press the Meas key 2 Select the Source menu item to open the signal source menu 3 Select the Level menu item The ...

Страница 57: ...ut of the RF measurement cable Calibration remains valid after turning off the R S FPC or changing into another appli cation as calibration data is saved in the internal memory of the R S FPC If you save the measurement in a dataset calibration data is part of that dataset When you restore the dataset and repeat the same measurement you do not have to recalibrate the R S FPC Before you calibrate t...

Страница 58: ...ts on that port The calibration requires no calibration standards as the R S FPC tests an open only 1 Port Selective Span Test port 1 is calibrated for reflection measurements over the currently selected fre quency range span The calibration requires the calibration standards open short and load to be connected one after another Available for the following measurements reflection S11 1 port cable ...

Страница 59: ... with the Perform Default Calibration button The R S FPC initiates the calibration Follow the instructions on the display After the calibration is done the R S FPC shows the last calibration date the last calibration frequency and the calibration kit you have used in the read only fields below the Calibrate button From now on the R S FPC restores the default calibration after a preset An exception...

Страница 60: ...now contains the corresponding status label Activating correction After you have normalized or calibrated the measurement you have to activate the correction of the measurement results If you do not activate the correction of the results the R S FPC displays the uncorrec ted results 1 In the spectrum application Press the Meas key to enter the measurement menu 2 Select the Signal Source menu item ...

Страница 61: ... R S FPC 58 User Manual 1178 4130 02 07 The R S FPC applies the correction values menu item turns light blue If you have a default calibration default calibration is applied if you do not activate user calibration ...

Страница 62: ... it is necessary to install and use the R S InstrumentView software package if you want to access and use the measurement wizard Before you can use the measurement wizard you have to define a measurement set with the R S InstrumentView software package and transfer it to the R S FPC The R S InstrumentView software package is available for download on the R S FPC website at www rohde schwarz com ma...

Страница 63: ...urement set from unauthorized access with a password Encryption category When you protect the measurement set with a password you can edit the contents of the measurement set only after you have entered the correct password In addition you can control who is using the measurement sets by limiting its access to a particular set of R S FPC serial numbers only All other devices will not be able to pr...

Страница 64: ...m the actual measure ment sequence you have defined with the R S FPC 1 Open the File Transfer dialog box in the R S InstrumentView software Instru ment File Transfer 2 Select the Wizard Sets folder on both the R S FPC left pane and the PC right pane 3 Select the measurement set you would like to transfer 4 Transfer the file to the R S FPC with the button Alternatively you can use a memory stick to...

Страница 65: ...ition Shows the name of the measurement set as defined with the R S Instrument View software User Enter the name of the person that performs the measurement No of Steps to Perform Enter the number of measurements you want to perform The field allows you to reduce the number of individual measurements and per form only those measurements that are really necessary If you reduce the number of measure...

Страница 66: ... Repeating a measurement can be useful for example if the results do not match your expectations and you want to vali date the results Interrupt Interrupts the sequence of measurements Interrupting a measurement can become necessary if the measurement does not yield the expected results for example violated limit lines In that case you can interrupt the measurement sequence and try to find the ori...

Страница 67: ...re information see Using in the file manager on page 47 The results for a measurement set consist of several files each file corresponding to one of the measurements For easy evaluation the R S FPC includes the name of the measurement as defined in the wizard dialog or R S InstrumentView in the file name All result files that belong to a measurement set are stored in the same directory The directo...

Страница 68: ...itor you can create measurement reports for the full measure ment set or a selection of dataset only You can also perform simple tasks like acti vating or deactivating markers that have been set during the measurement 6 Add the results you want to include in the report by setting a checkmark or remov ing the checkmark in the report pane 7 Select the report format you would like 8 Create the report...

Страница 69: ...rum menu item Configuration Overview 66 Measurements and Result Displays 68 Frequency Configuration 93 Amplitude Configuration 98 Bandwidth Configuration 106 Sweep Configuration 109 Trigger Configuration 112 Trace Configuration 113 Marker Configuration 119 Marker Functions 125 Display Lines 129 Limit Lines 130 14 1 Configuration Overview The configuration overview provides quick access to the most...

Страница 70: ...ange with the cursor keys or the rotary knob When you confirm your selection with the key you can change that setting 6 You can exit the configuration overview any time with the Exit menu item The configuration overview contains several panes each of which contains settings that thematically belong together Input For more information about the contents of the Input pane see Chapter 14 4 Amplitude ...

Страница 71: ...tended measurement functions like harmonic distortion or OBW measurements These measurements provide settings and tools for special measurement tasks Measuring basic spectrum characteristics Basic spectrum measurements require no optional equipment on the R S FPC 1 Connect a DUT to the RF input of the R S FPC 2 Turn on the R S FPC The R S FPC measures the characteristics of the DUT in the frequenc...

Страница 72: ...n mode You can use time domain measurements for example to monitor the character istics of a signal and its behavior over time Figure 14 3 Display of a signal in the time domain The horizontal axis shows the time the vertical axis shows the signal levels You have to select the zero span mode deliberately to measure signal characteristics in the time domain Selecting an advanced measurement functio...

Страница 73: ... to the channel bandwidth It then determines the total power of the channel by integrating the results on the trace That means that you can compare the result to the result that would have been obtained from a thermal power meter The small resolution bandwidth acts like a nar row channel filter and so prevents out of channel emissions from affecting the result Selecting the channel power measureme...

Страница 74: ... supports several settings exclusive to that mea surement These are available in the measurement menu Defining the channel bandwidth The channel bandwidth is the bandwidth of the signal that you are measuring Note that the channel bandwidth and frequency span are coupled When you select a channel bandwidth the R S FPC automatically defines an appropriate span for the channel bandwidth you have def...

Страница 75: ...er result in the diagram header 4 You can return to the normal power display by selecting the Channel Power Hz menu item again Selecting the unit for power display The R S FPC can apply different units to the power output 1 Press the Meas key to open the measurement menu 2 Select the Power Unit menu item to open the power unit menu 3 Select the unit you want The R S FPC displays the signal level i...

Страница 76: ... to exceed the reference level To simplify operation and to prevent incorrect measurements the R S FPC has an automatic routine for setting the reference level 1 Press the Meas key to open the measurement menu 2 Select the Level Adjust menu item The R S FPC performs a measurement to determine the optimal reference level It uses a resolution bandwidth of 1 MHz a video bandwidth of 1 MHz and the pea...

Страница 77: ...ple of the fundamental frequency f x Intermodulation products which are the sum and difference frequencies of the fun damentals fx fy and fy fx Frequency Power f1 f2 2 f1 2 f2 f1 f2 3 f1 3 f2 2 f1 f2 2 f2 f1 2 f1 f2 2 f2 f1 f2 f1 Fundamentals 2nd order products 3rd order products Figure 14 4 Overview of intermodulation products The third order intermodulation products are of special interest becau...

Страница 78: ...s and two markers marker 3 and marker 4 on the third order intermodulation products The R S FPC calculates the third order intercept point from the level difference between the first 2 markers and the markers 3 and 4 and displays the result in the diagram header Searching for signals A signal search is an easy way to update the marker position and thus the measure ment results for example if the s...

Страница 79: ...seconds Selecting a standard A quick way to configure a measurement is to store a certain measurement configura tion in a file and later restore it This way is especially useful for example if you test a signal against the test scenarios of a telecommunications standard Configurations for common telecommunications standards are already provided with the R S FPC firmware If you want to measure a di...

Страница 80: ... The burst length or measurement time defines the expected length of the burst The measurement time is the time period over which the signal power is measured The minimum burst time is the time corresponding to one trace pixel The maximum burst time corresponds to the current sweep time with the sweep time being the com plete time displayed on the x axis The burst time must be equal or less than t...

Страница 81: ...al components are harmonics also called overtones signals with higher frequencies than the fundamental which show as whole number multiples of the fundamental in the spectrum Each harmonic has a lower level than the fundamental but they still affect the signal as a whole The harmonic distortion is designed to detect the harmonics of the signal you are mea suring When you start a measurement the R ...

Страница 82: ...ent menu 2 Select the Adjust Settings menu item The R S FPC adjusts the reference level frequency and span to display all har monics in the best way 14 2 5 Measuring the AM Modulation Depth Access Meas Measurement Mode AM Modulation Depth Remote commands required to configure AM modulation depth measurements Chapter 19 12 1 7 AM Modulation Depth on page 244 Amplitude modulation AM is a modulation ...

Страница 83: ...and values If the R S FPC is unable to find any AM modulated carriers it shows a message that the measurement is not possible Moving the markers You can move the markers manually and individually to other positions if necessary 1 Press the Meas key to open the measurement menu 2 Select one of the Marker x menu items to select the corresponding marker 3 Move the marker to a new position Defining a ...

Страница 84: ...lly selects the measure ment parameters so that you can attain the best result Selecting the OBW measurement 1 Press the Meas key to open the measurement menu 2 Select the Measurement Mode menu item to select the measurement 3 Select the Occupied Bandwidth menu item The R S FPC starts to measure the occupied bandwidth Two vertical lines show the occupied bandwidth The occupied bandwidth measuremen...

Страница 85: ...andwidth measurement supports several settings exclusive to that measurement These are available in the measurement menu Defining the percentage of the occupied bandwidth The default power percentage to be evaluated inside the occupied bandwidth is 99 a value most standards require If your measurement requires a different power per centage you can change that value 1 Press the Meas key to open the...

Страница 86: ...ally sets the span resolution bandwidth video bandwidth sweep time and detector required by the standard If the measurement is not according to the selected standard anymore for exam ple if you change a parameter the R S FPC shows a blue dot in front of the stan dard display Defining the reference level The reference level is the power level that the R S FPC expects at the RF input When you select...

Страница 87: ...4 2 7 Working with the Spectrogram Result Display Access measurement menu Meas Measurement Mode Spectrogram Access measurement menu Meas Measurement Mode Spectrogram Play back Remote commands to control the spectrogram not supported Available with the optional Advanced Measurements application The spectrogram result display shows the spectral density of a signal in the frequency domain and over ti...

Страница 88: ... Spectrogram Recording 85 Color Definition 87 Spectrogram Playback 90 14 2 7 1 Spectrogram Recording When you are in continuous sweep mode the R S FPC starts to record spectrogram data when you enter the spectrogram mode You can see that the spectrogram result display fills up as each sweep adds an additional line to the spectrogram When you are in single sweep mode the R S FPC does not add a line...

Страница 89: ...t the Full Screen menu item The R S FPC now uses the full diagram area of the screen for the spectrogram The number of lines in the spectrogram and therefore the displayed time period more than doubles Note It can however be necessary that the spectrum result display is still visible to evaluate measurement results For this purpose the spectrogram has an invisi ble scrollbar that you can use to sc...

Страница 90: ...re most comfortable with The R S FPC adjusts the screen colors according to your selection The following color schemes are available Default Green Yellow Green Blue Black White Red Purple Blue Black Adjusting the color distribution It is possible that the color distribution is not ideal in the default configuration The R S FPC provides several settings to further enhance the color display in the s...

Страница 91: ...en measured first 1 Press the Meas key to open the measurement menu 2 Select the Level Range menu item to open the level range menu 3 Select the Reference Level menu item The R S FPC opens an input field to enter the spectrogram reference level The reference level should be near the maximum level that has been measured while the spectrogram was running In the example the reference level should be ...

Страница 92: ...gram level range is still the same 100 dB 5 Select the Level Range menu item The R S FPC opens an input field to enter the spectrogram level range In the example the level range of the signal is from about 80 dBm to about 120 dBm 6 Therefore set the level range to 40 dB to cover the complete level range of the sig nal As the level range is now adjusted the R S FPC is able to map its complete color...

Страница 93: ...evel range of 30 dB or even 25 dB This provides a high contrast between signal parts that are above the noise floor and the noise floor which is drawn in black To show details of the noise floor and exclude the peak levels you have to lower the spectrogram reference level until it is just above the noise floor The R S FPC then displays the signal parts that are above the reference level in only on...

Страница 94: ...menu 2 Select the Recall menu item The R S FPC opens the file manager 3 Select the file you need The file extension for spectrogram data is spm The R S FPC loads the spectrogram and shows the data in the display Basically you can do the same things in spectrogram playback mode as in the spectrogram recording mode for example customize the display to your needs In addition to that functionality it ...

Страница 95: ... shows the time stamp of the time line The time stamp of the first time line T1 is always referred to the top most frame A time stamp of 00 00 50 000 for example means that the data was measured 50 seconds prior to the topmost frame In addition to the time line horizontal marker you can also use vertical markers in the spectrogram With the help of the marker and the time line you are able to find ...

Страница 96: ... main application of a spectrum analyzer is to measure the frequency and the power level of a signal and show these signal characteristics in a diagram The x axis of the diagram usually contains the frequency information of the signal while the y axis usually contains the level information Regarding the frequency information a typical measurement task does not require you to measure the characteri...

Страница 97: ...e frequency range based on start and stop frequen cies Defining a center frequency 1 Press the Freq key to open the frequency menu 2 Select the Center Freq menu item The R S FPC opens an input field to define the center frequency Tip When you press the Freq key the R S FPC automatically opens an input field to define the center frequency If the input field is inactive you can open it with the Cent...

Страница 98: ... frequency the R S FPC sets the step size internally Manually defining the step size opens an input field to define the step size Defining a frequency offset A frequency offset allows you to shift the displayed frequency values by a certain amount to a higher or lower frequency This shift is an arithmetical operation only the measured frequency really remains the same Shifting the frequency to ano...

Страница 99: ...pan Tip When you press the Span key the R S FPC automatically opens an input field to define the span If the input field is inactive you can open it with the Man ual Span menu item 3 Enter a span The R S FPC adjusts the span of the horizontal axis to the value you have entered Tip If you define a span of 0 Hz zero span the R S FPC measures in the time domain In that state the R S FPC measures the ...

Страница 100: ...ng with the stop frequency The label of the horizontal axis changes from Center and Span to Start and Stop 14 3 3 Channel Tables Working with channel tables Almost all transmission systems divide their assigned frequency ranges into channels Each channel corresponds to a specific frequency To keep the handling of such sys tems simple you can use channel tables instead of entering frequencies manua...

Страница 101: ...nalyze The R S FPC changes the frequency according to the channel table and the chan nel you have selected Channel numbers are assigned to frequencies as follows The first channel is assigned a channel number and a frequency All subsequent channels have ascending numbers The frequency spacing between channels is fixed It can also be negative In that case the center frequency of the R S FPC decreas...

Страница 102: ... signal you are measuring If necessary the analyzer also attenuates or amplifies the signal to yield the best possi ble dynamic range When you define a low reference level meaning that a weak signal is expected the analyzer amplifies the signal internally to display even weak signals clearly On the other hand when you apply a strong signal or an unknown signal you have to make sure to define a ref...

Страница 103: ...ference level used to adjust the hardware to the expected signal ignores the reference offset Thus it is important to keep in mind the actual power level that the R S FPC must handle Do not rely on the displayed refer ence level internal reference level displayed reference level offset 1 Press the Ampt key to open the amplitude menu 2 Select the Range Ref Position menu item to open the display ran...

Страница 104: ...nuator High attenuation makes sure that the measurement results are reliable Signals that are stronger than allowed might distort the results High attenuation increases inherent noise i e the noise floor and thus decreases measurement sensitivity if you increase attenuation by 10 dB the sensitivity is reduced by 10 dB in other words the displayed noise increases by 10 dB High attenuation helps to ...

Страница 105: ...vity of the R S FPC This mode gives a better impression of spurious products and is thus useful to analyze signals whose level is near the noise level However the signal to noise ratio in general can deteriorate See Table 14 1 for the dependencies between reference level and applied attenuation The current attenuation is indicated in the measurement settings Table 14 1 Dependencies of the selected...

Страница 106: ...nge If you want to measure with the maxi mum dynamic range you should turn off the preamplifier The gain of the preamplifier is automatically considered in the level display Turning the preamplifier on and off 1 Press the Ampt key to open the amplitude menu 2 Select the Preamplifier menu item The R S FPC turns the preamplifier on and off The status of the preamplifier is indicated in the status ba...

Страница 107: ...xis scale The R S FPC adjusts the vertical axis accordingly 14 4 4 Transducers The results of measurements with transducers or antennas usually need to be correc ted by their frequency characteristics These correction values are defined in trans ducer factors When you use a transducer factor these correction values can be directly considered in the measurement results A transducer factor consists ...

Страница 108: ...Select the Select Primary menu item The R S FPC opens a submenu where you can select the transducer factor you need 4 Select the transducer factor you need and confirm the selection with the Load menu item The R S FPC applies the correction values to the measurement results An example would be the transducer factor of the R S HL223 antenna that is defined between 200 MHz and 1300 MHz The R S FPC t...

Страница 109: ...always within the diagram the R S FPC adjusts the reference level accordingly The reference level is shifted by the maximum transducer value in the positive or negative direction Frequency range of transducer If the set frequency range is wider than the span in which a transducer is defined the R S FPC assumes the transducer values outside the defined range to be zero Data sets containing transduc...

Страница 110: ...y Increasing the bandwidth by a factor of 10 increases the displayed noise by a factor of 10 10 dB Measurement speed The resolution bandwidth affects the speed of the measurement If you want to dis play the true spectrum the resolution filters have to settle at all frequencies that are of interest Narrow filters have a longer settling time compared to wide ones Therefore the sweep time increases t...

Страница 111: ...ead out level values Video voltage is the DC voltage that results from the IF signal passing through the envelope detector which removes the IF components and outputs the envelope only This output is also known as the video signal The figure below shows that process on an AM modulated signal in the time domain In case of an AM modulated signal the envelope or video signal contains a DC com ponent ...

Страница 112: ...field to select one of the available bandwidths If you enter a bandwidth that the R S FPC does not support the R S FPC rounds to the next available bandwidth Refer to the data sheet for more infor mation on available resolution bandwidths A manually selected VBW is indicated by a blue dot in front of the VBW label in the status bar Figure 14 12 Indicator of manual video bandwidth VBW Auto Automati...

Страница 113: ... In the time domain span 0 the R S FPC shows the video voltage over time The horizontal axis becomes a time axis that starts at 0 s and ends at the measurement time that you have selected Defining the sweep time 1 Press the Sweep key to open the sweep menu 2 Select one of the Sweeptime x menu items Sweeptime Manual Opens an input field to define the measurement time A manually selected measurement...

Страница 114: ...S FPC starts a single measurement of the selected span 14 6 3 Sweep Type The sweep type defines the way how the R S FPC captures and processes the data The sweep type also has an effect on the measurement speed Selecting the sweep type 1 Press the Setup key to open the setup menu 2 Select the User Preference menu item 3 Select the Sweep FFT Mode menu item in the Spectrum category 4 Select the swee...

Страница 115: ...en the sweep menu 2 Select the Trigger menu item to open the trigger menu 3 Select one of the trigger sources Free Run No trigger source is considered You can start the measurement manually any time and stop it as required Video Trigger A measurement starts when the voltage of the video signal exceeds a certain level When you select the video trigger the R S FPC opens an input field to define the ...

Страница 116: ...pen the sweep menu 2 Select the Trigger menu item to open the trigger menu 3 Select the Trigger Delay menu item The R S FPC opens an input field to define the delay time The range of the trigger delay is between 0 µs to 100 s The resolution with which you can select the delay time depends on the subrange of the delay time see Table 14 2 Table 14 2 Trigger delay dependencies Trigger delay Resolutio...

Страница 117: ... two different detector settings In the default state only trace 1 is active 1 Press the Trace key to open the trace menu 2 Select the Trace x menu item The R S FPC activates the second trace which has a different color than the first trace After you have activated the second trace this is also the active one All actions like changing the detector or trace mathematics apply to the active trace 3 B...

Страница 118: ...the Min Hold trace mode automatically selects the Min Peak detector To overwrite a max hold trace change a parameter in a way that the results cannot be compared any more for example the span The Min Hold trace mode is a good way to highlight signals within noise or sup press intermittent signals Average Displays the average levels that have been measured over several sweeps The Average trace mode...

Страница 119: ... one pixel usually combines a large quantity of measurement points Therefore it has to reduce the data and combine measurement results to fit them on the display The detector determines the way the R S FPC combines and displays the results for one pixel The data base is the video voltage of the analyzer The following detectors are supported Auto Peak The auto peak detector displays both the highes...

Страница 120: ...nto play before the RMS value is calculated Sample The sample detector shows the last level that was measured in the frequency range covered by a pixel The sample detector is useful for measurements in the time domain span 0 Hz as it provides the only way to represent the timing of the video signal correctly In the frequency domain the sample detector is a good way to measure noise power because n...

Страница 121: ...y x menu item The R S FPC shows the memory trace in a different shade of the corresponding trace color If active it highlights the Show Memory x menu item Figure 14 16 Trace bright yellow and memory trace pale yellow Using trace mathematics Trace mathematics subtract the memory trace from the live trace and vice versa and then display the results 1 Press the Trace key to open the trace menu 2 Sele...

Страница 122: ...a certain trace point The R S FPC has six markers five of which can be used as either markers or delta markers Markers show absolute values delta markers show values relative to the first marker marker 1 or M1 The first marker reference marker is always a normal marker The horizontal position of a marker is represented by a vertical line which extends from the top to the bottom of the diagram area...

Страница 123: ...ues delta marker the relative distance to the first marker reference marker In Figure 14 19 for example the frequency for the first marker M1 is an abso lute value while the frequency of the second marker a delta marker is displayed as an offset to the first marker Because the second marker is located to the left of the first marker it is a negative value Vertical position of the marker The vertic...

Страница 124: ...sured at that frequency Position the marker automatically You can turn off the marker at any time by selecting the Marker 1 menu item Adding additional markers 1 Press the Mkr key to open the marker menu At the same time the R S FPC activates the first marker M1 2 Select the Marker x menu item not Marker 1 because that would deactivate the first marker The R S FPC adds a second marker to the diagr...

Страница 125: ...rkers at any time you want 1 Press the Mkr key to open the marker menu 2 Select the marker or delta marker you want to remove with the corresponding Marker x softkey The R S FPC selects the corresponding marker or delta marker 3 Remove the marker or delta marker by selecting the corresponding menu item again The R S FPC deletes the selected marker or delta marker Deactivating markers If you delete...

Страница 126: ...ing markers automatically 1 Press the Mkr key to open the marker positioning menu Tip Marker positioning functions are only available if at least one marker is active If no marker or delta marker is active they are not applicable 2 Select the menu item of the positioning function you want to use Set To Peak Positions the active marker or delta marker on the highest level value of the trace Set To ...

Страница 127: ... potential marker positions Sometimes it can be sufficient to search on a smaller frequency range In that case you can define a marker search range Defining marker search range 1 Press the Mkr key to open the marker positioning menu 2 Select the Search Range menu item to open the search range menu 3 Select the Search Range 1 menu item The R S FPC opens a submenu to configure search range 1 4 Selec...

Страница 128: ...arker search ranges 1 Press the Mkr key to open the marker positioning menu 2 Select the Search Range Off menu item The R S FPC deactivates all search ranges and deletes the vertical lines of the search ranges 14 10 Marker Functions Access Mkr Remote commands required to control marker functions Chapter 19 12 8 Marker on page 271 Marker functions are measurements that you can perform with markers ...

Страница 129: ... only works for marker 1 M1 or delta marker 2 D2 Measuring the noise density 1 Press the Mkr key to open the marker menu 2 Select the Marker Mode menu item to open the marker function menu 3 Select the Noise menu item The R S FPC shows the noise density at the marker frequency in the marker list in dBm Hz If you are using a delta marker for the measurement the results have the unit dBc Hz with mar...

Страница 130: ... to turn off the frequency counter 14 10 3 Signal Bandwidth Measurement Access Mkr Marker Mode N dB Down You can measure the signal bandwidth with the n dB down marker function The n dB down marker function uses the current value of marker 1 M1 as the refer ence point It activates two temporary markers on the signal whose level is n dB below the level of the reference point One temporary marker is...

Страница 131: ...e frequency sweep then stops at the marker frequency for that time before finishing the sweep Remote commands required to configure marker properties Chapter 19 12 8 Marker on page 271 Selecting the demodulation type 1 Press the Mkr key to open the marker menu 2 Select the Marker Demodulation menu item to open the marker demodulation menu 3 Select the AM or the FM menu item The R S FPC demodulates...

Страница 132: ... means that the accuracy and exact vertical position of the display line depends on the resolution of the vertical axis With a display range of 100 dB for example each pixel corresponds to 0 3 dB In that case the accuracy of the display line is 0 3 dB If you enter a value with a higher resolution the R S FPC rounds that value You can also move the display line with the rotary knob or the cursor ke...

Страница 133: ...requency in MHz or relative values whose reference is the center of the measurement trace for example the center frequency Relative values are useful for example if you measure modulated output signals and change the cen ter frequency but need the limit line to remain the same Absolute limit lines have the file extension abslim while relative limit lines have the file extension rellim Values that ...

Страница 134: ...lt LimitLines If you have stored limit lines in another directory you have to navigate to that directory first By default the R S FPC shows all limit lines available in the selected directory files with the abslim or rellim extension even those that are not compatible to the current diagram scale 5 Select the Show Compatible menu item to filter the available limit lines The R S FPC shows only the ...

Страница 135: ...gain if you want to use the limit line again 1 Press the Lines key top open the lines menu 2 Select the Upper Limit or the Lower Limit menu item 3 Select the Remove menu item Performing limit checks If limit lines are active the R S FPC automatically checks the trace for limit violations after each frequency sweep As long as the signal does not violate the limit line the R S FPC shows a Pass messa...

Страница 136: ...The Spectrum Application R S FPC 133 User Manual 1178 4130 02 07 The audio signal is active when the Audio Beep menu item is highlighted Limit Lines ...

Страница 137: ... mode menu 2 Select the Receiver menu item Measurements and Result Displays 134 Frequency Configuration 138 Amplitude Configuration 142 Bandwidth Configuration 143 Sweep Configuration 144 Trace Configuration 144 Limit Lines 145 Marker Configuration 145 15 1 Measurements and Result Displays Access Meas Remote commands required to configure measurements Chapter 19 13 1 Measurement Configuration on p...

Страница 138: ...tion to the current signal level the bargraph also shows the highest signal level that has been measured since the measurement has begun Max Hold information It remains effective even if you change any receiver settings for example the frequency or the attenuation and is only reset when you deliberately do so The max hold information is represented by a dark blue vertical line in the bargraph The ...

Страница 139: ...display represents the frequency spectrum covered by the scan The vertical axis represents the signal level The signal levels for each frequency measured during the scan are represented by a vertical line at the receiver frequencies that have been measured This type of display emphasizes the fact that the scan measures single receiver frequencies only and not the frequencies between those receiver...

Страница 140: ...l line for each receive frequency as descri bed above Trace Style Polygons Shows the trace as a continuous horizontal line The gaps between the measurement frequencies are interpolated Displaying the peak list As an alternative to evaluating the scan results in a diagram you can display them in a table 1 Press the Meas key to open the measurement menu 2 Select the View Peak List menu item The R S ...

Страница 141: ...cy range The max hold information is indicated by a blue line that is appended to the yellow line which indicate the current signal level The max hold information is displayed for both frequency modes frequency display and channel display Resetting the max hold To begin a new max hold measurement you have to reset the max hold information deliberately 1 Press the Meas key to open the measurement m...

Страница 142: ...ange of frequencies with the rotary knob define a frequency step size 1 Press the Freq key to open the frequency menu 2 Select the Frequency Step menu item to open the frequency step menu 3 Select one of step size options 0 1 x RBW The step size equals 10 of the resolution bandwidth Center The step size equals the center frequency Manual x Hz Define any step size you want in the input field that o...

Страница 143: ...t field to define the start frequency of the scan range 3 Enter the frequency you want the scan to start at 4 Select the Stop Frequency The R S FPC opens an input field to define the stop frequency of the scan range 5 Enter the frequency you want the scan to stop at 6 Select the Scan Step menu item The R S FPC opens an input field to define the frequency step size of the scan 7 Enter the step size...

Страница 144: ... scaling is useful for overview measurements when a large frequency range must be displayed in one diagram However with logarithmic scaling the frequency resolution between two measurement points deteriorates with higher frequencies 1 Hz 1 GHz 1 MHz Figure 15 4 Logarithmic x axis scaling the distance between measurement points is variable In the spectrum from 10 Hz to 100 Hz the distance is a few ...

Страница 145: ...e 103 Preamplifier Preamplifier on page 103 Attenuator RF attenuator on page 101 Impedance Selecting the input impedance on page 98 Transducer Chapter 14 4 4 Transducers on page 104 Defining the bargraph scale The scale of the bargraph depends on the reference level and the level range The reference level is the maximum power level that the bargraph displays You should set the reference level in a...

Страница 146: ...h selected settings Remote commands to configure the bandwidth Chapter 19 13 4 Bandwidth on page 299 The receiver application adds 6 dB resolution bandwidths to the 3 dB resolution band widths already available in other applications The 6 dB bandwidths are special band widths that are necessary for measurements according to CISPR16 The R S FPC provides an automatic bandwidth selection for CISPR ba...

Страница 147: ...you need Selecting the measurement mode When you enter the receiver mode the R S FPC repeatedly measures the receive fre quency or set of frequencies over the measurement time you have defined If you want to measure a fixed frequency or frequency scan only once select single scan mode 1 Press the Sweep key to open the sweep menu 2 Select the Continuous Scan menu item The R S FPC starts a continuou...

Страница 148: ...it Lines Access limit lines menu Lines Remote commands to configure limit lines Chapter 19 12 11 Limit Lines on page 289 For more information about limit lines see Chapter 14 12 Limit Lines on page 130 In the receiver application limit lines must be compatible both to the scale of the y axis and the scale of the x axis Limit line settings in the receiver application described elsewhere Show Limit ...

Страница 149: ... the position of a marker in the frequency scan 1 Press the Meas key to open the measurement menu 2 Select and start a Frequency Scan 3 Press the Mkr key to open the marker menu 4 Select a marker and position it on one of the measurement frequencies 5 Select the Marker To Fixed Freq menu item The R S FPC changes the receiver frequency to the marker frequency At the same time the R S FPC turns on t...

Страница 150: ... Overview Analysis selected settings Remote commands required to control measurements and result displays Chapter 19 14 1 Measurements and Result Displays on page 303 The analog demodulation measurement application provides several measurements and numerical and graphical result displays These result displays show various aspects and characteristics of the demodulated signal Selecting the measurem...

Страница 151: ...y in a diagram Figure 16 1 Trace display of an AM signal The x axis shows the demodulation characteristics of the signal over time The y axis shows the modulation depth in AM signals or the frequency devia tion in Hz FM signals The carrier frequency center frequency of the signal is indicated in the diagram footer The diagram header contains the most important signal characteristics in numerical f...

Страница 152: ...ion in dBm Freq Deviation FM domain Shows the frequency deviation that the carrier signal is modulated with Modulation Rate FM domain Shows the ratio of the frequency deviation and the reference deviation Modulation Depth AM domain Shows the difference in amplitude the carrier signal is modulated with Peak Peak Shows the minimum and maximum frequency deviation FM signals or modulation depth AM sig...

Страница 153: ...cation The width of the captured signal the span is defined by the demodulation band width If you do not know the frequency of the carrier signal you have to find it out You can do that for example by searching the frequency spectrum in the spectrum application in the area where you assume that the carrier is located Frequency settings in the analog modulation application described elsewhere Cente...

Страница 154: ...how much the modulated signal deviates from the unmodulated sig nal 0 Hz The unit is Hz For FM signals you can define the display range of the y axis manually and automati cally The display range is defined by the deviation from the zero line per grid division 1 Press the Ampt key to open the amplitude menu Manual scaling of the y axis 2 Select the Deviation Per Division menu item 3 Enter a value ...

Страница 155: ...requencies Table 16 1 to Table 16 6 contain information about the different audio frequency ranges as a function of the demodulation bandwidth and the audio filter In most cases the audio filter with a DBW 1 characteristic is sufficient If you need to measure low modulation frequencies that are below the DBW 1 range consider to select another audio filter that fits your requirements When you are u...

Страница 156: ...n the bandwidth menu 2 Select the FM Broadcast menu item 3 Select the time constant you need Off Applies no deemphasis filter 50 µs 50 µs time constant used for example in European FM broadcast ing 75 µs 75 µs time constant used for example in North American FM broad casting Defining the FM frequency deviation The frequency deviation defines the difference between the modulated frequency and the c...

Страница 157: ...um Maximum 2000000 6100 1000000 989000 3050 500000 650000 2350 325000 500000 1520 250000 300000 950 150000 200000 610 100000 100000 300 50000 50000 150 25000 30000 90 15000 20000 60 10000 10000 30 5000 Table 16 4 Minimum and maximum modulating frequencies for audio lowpass DBW 10 Demodulation bandwidth Modulating frequency Hz Minimum Maximum 2000000 610 100000 989000 305 50000 650000 230 32500 500...

Страница 158: ...00000 10 1515 50000 5 758 30000 3 455 20000 3 303 10000 3 152 Table 16 6 Minimum and maximum modulating frequencies for audio lowpass DBW 100 Demodulation bandwidth Modulating frequency Hz Minimum Maximum 2000000 60 10000 989000 30 5000 650000 25 3250 500000 15 2500 300000 10 1500 200000 6 1000 100000 3 500 50000 3 250 30000 3 150 20000 3 100 10000 3 50 16 5 Sweep Configuration Access Sweep Remote...

Страница 159: ...a surement 16 6 Limits Access limits menu Lines Remote commands to configure limits Chapter 19 14 6 Limits on page 312 Limits are an analysis tool that allows you to compare the measured signal levels to signal specifications and determine if the measured signal characteristics comply to these specifications You can define limits for all numerical results available in the AM and FM result summary ...

Страница 160: ...per and lower limit values defined in the file in the cor responding columns of the result summary It automatically checks if the results are within the limits or not Results within the limits are indicated by a Pass message in a green font results that violate the limits are indicated by a Fail message in a red font Removing limits 1 Press the Lines key top open the limits menu 2 Select the Clear...

Страница 161: ...r Configuration 169 17 1 Measurements and Result Displays Access Meas Access Setup Config Overview Analysis selected settings Remote commands required to control measurements and result displays Chapter 19 15 1 Measurements and Result Displays on page 313 The goal of digital demodulation is to determine the quality of the signal that is trans mitted by the device under test DUT by comparing it aga...

Страница 162: ...d with a certain fixed amplitude On a value of 0 the signal is transmitted with a reduced amplitude Often the amplitude of the 1 signal is 100 and the amplitude of the 0 sig nal is close to 0 of the nominal carrier amplitude OOK on off keying The R S FPC detects the different amplitudes demodulates the signal and retrieves the original sequences of the digital symbols For proper demodulation you h...

Страница 163: ...pe of information is different 1 Press the Meas key to open the measurement menu 2 Select the modulation scheme of the signal you want to demodulate ASK or FSK 3 Select the result display Eye Diagram Shows the modulation accuracy in that it analyzes the transi tions from one modulation state to the other An open eye indicates little distortion in the signal transmission A closed eye indicates poor...

Страница 164: ...ation index on page 162 for more information Figure 17 4 Modulation depth of a 2ASK signal Modulation Deviation FSK Shows the frequency shift of the signal The fre quency shift or frequency deviation is the frequency difference between the mark binary 1 and space binary 0 frequencies representing the binary digits Figure 17 5 Modulation deviation of a 2FSK signal Measurements and Result Displays ...

Страница 165: ...ency of the measured signal Magnitude Error FSK Shows the difference between the measured magnitude and the magnitude of the reference signal Modulation Index ASK Shows the modulation index of the measured signal Modulation Depth ASK Shows the modulation depth of the measured signal Modulation Error Shows the modulation deviation between measured signal and reference signal Carrier Power Shows the...

Страница 166: ... Measurement Configuration Access Meas Demod Parameters Access Setup Config Overview Bandwidth selected settings Remote commands required to define demodulation parameters Chapter 19 15 2 Measurement Configuration on page 318 A digital modulation system needs a transmit filter to limit the bandwidth of the trans mitted signal The receiver needs to know the characteristics of that filter to be able...

Страница 167: ... The filter type should be the same as that used by the transmitter for example if the transmitter uses a Gaussian filter you should analyze the signal with a Gaussian filter too Otherwise measurement results are not valid The R S FPC provides the following filter types Root Raised Cosine RRC Raised Cosine Gaussian Unfiltered You can define the roll off factor for all filters Defining the roll off...

Страница 168: ...s that should be displayed at a time The R S FPC always captures 4000 samples of raw data This parameter only con trols how many of those samples are demodulated and displayed The number of symbols you can define depends on the selected filter type 1 Press the Meas key to open the measurement menu 2 Select the Demod Parameters menu item to open the demodulation menu 3 Select the Number of Symbols ...

Страница 169: ...fined standards Selecting one of those standards automatically configures various measurement parameters that comply to that standard The symbol rate the number of symbols and the filter characteristics filter type and roll off factor Manual configuration of those parameters is thus not necessary 1 Press the Meas key to open the measurement menu 2 Select the Standard menu item to open the standard...

Страница 170: ...lifier on page 103 Attenuator RF attenuator on page 101 Impedance Selecting the input impedance on page 98 When you select one of the graphical result displays you can also adjust the scale of the y axis Defining the position of the reference ASK signals In the graphical result displays you can define the reference position on the y axis The reference corresponds to the top of the grid 100 by defa...

Страница 171: ...ly The measurement results are updated accordingly In single mode the R S FPC demodulates the signal once and then stops without updating the results any longer Another measurement starts only when you deliber ately initiate it 1 Press the Sweep key to open the sweep menu 2 Select the Continuous Sweep menu item The R S FPC demodulates the signal continuously You can interrupt a continuous measurem...

Страница 172: ...ge 112 In addition to the trigger settings available in the spectrum application the digital demodulation application provides an I Q power trigger source Using the I Q power trigger The I Q power trigger initiates a measurement when the magnitude of the sampled I Q data exceeds a certain level 1 Press the Sweep key to open the sweep menu 2 Select the Trigger menu item to open the trigger menu 3 S...

Страница 173: ... signal or stimulus signal is the reference for the result calculation Selecting the VNA application 1 Press the Mode key to open the mode menu 2 Select the Vector Network Analyzer menu item Measurements and Result Displays 170 Frequency Configuration 179 Amplitude Configuration 181 Bandwidth Configuration 182 Sweep Configuration 183 Trace Configuration 184 Marker Configuration 184 Limit Line Conf...

Страница 174: ...Figure 18 1 Setup of a transmission S21 measurement Measuring the transmission 1 Connect the DUT to the R S FPC as shown in Figure 18 1 2 Define the frequency parameters for the measurement For more information see Chapter 18 2 Frequency Configuration on page 179 3 Press the Meas key to enter the measurement menu 4 Select the Transmission S21 menu item to start the measurement 5 Calibrate the tran...

Страница 175: ...54 6 After calibration start the actual measurement single sweep or continuous sweep 18 1 3 1 Port Cable Loss Measurement Access Meas 1 Port Cable Loss The cable loss measurement is a reflection measurement on an open cable It evalu ates the amount of RF energy that a signal loses while traveling through a cable The amount of lost energy depends on the frequency and the length of the cable Cable R...

Страница 176: ...mines the exact location of possible faults in a transmission system If you connect the end of the cable to the R S FPC the DTF measurement shows you the exact distance to the fault in meter or feet regardless of the reason of the fault Typical defects in a cable could be for example a broken cable partial reflections a loose cable connector or cable corrosion In addition the measurement shows the...

Страница 177: ...ement For more information see Chapter 12 Calibration on page 54 6 After calibration start the actual measurement single sweep or continuous sweep Displaying the DTF list The DTF list shows the results of the distance to fault measurement in numerical form 1 Press the Meas key to open the measurement menu 2 Select the DTF Config menu item to open the DTF configuration menu 3 Select the DTF List me...

Страница 178: ...um to the minimum voltages that occur in an electrical transmission line It is a measure of the reflected power at the input of the DUT The logarithmic y axis shows the SWR no unit The x axis represents the selected frequency range Available for the reflection and the DTF measurement Smith Chart Shows the measurement results in the Smith chart The Smith chart is a circular diagram that primarily s...

Страница 179: ...egardless of the currently selected format The electrical length is calculated from the phase delay with ΔΦ being the phase deviation over the entire frequency range The electrical length is then derived by with c0 being the velocity of light By definition the electrical length is calculated from the vacuum velocity of light and the differential group delay Here the group delay is replaced by the ...

Страница 180: ...istance to any faults you have to specify the cable model that you want to test The R S FPC already comes with an assortment of predefined cable models that you can use without doing anything If you want to test a cable that is not listed you can also define custom cable models You can do so either directly on the R S FPC or with the Cable Model Editor of the R S InstrumentView software package Se...

Страница 181: ...s Defines the cable loss at the corresponding frequency Note that when you change any cable parameter or load another cable model the temporary data is lost and you have to define it again for another measurement After you have defined the cable characteristics you still have to activate the use of the customized cable 5 Select the User Model menu item to activate the cable characteristics The men...

Страница 182: ...configure the frequency Chapter 19 16 3 Frequency on page 335 VNA measurements are done over a certain frequency range on a certain number of discrete measurement points You can define the frequency range by defining a center frequency and a start and stop frequency or a frequency span similar to the spectrum application The R S FPC displays the frequency information on the x axis except for the D...

Страница 183: ...t the Start Frequency or Stop Frequency menu items to define the span The center frequency is automatically adjusted to the frequency whose distance to the start and stop frequency is the same Defining the displayed frequency range After you have defined the span you can define the frequency range whose results the R S FPC displays In the default configuration the R S FPC adjusts the DTF start and...

Страница 184: ...ition of the trace in the diagram remains the same The position of the reference line in the diagram also remains the same Defining the position of the reference line The reference position defines the position of the reference line in the diagram The reference position is a linear value between 0 and 10 Each value represents one hori zontal grid line of the diagram 100 corresponds to the grid lin...

Страница 185: ... that is displayed on the y axis Auto Range Scales the y axis in a way that the results fit ideally on the dis play The R S FPC does this by determining the minimum and maximum trace values and scaling the vertical axis according to these values 4 Select the Full Scale menu item to restore the default display range 18 4 Bandwidth Configuration Access BW Remote commands to configure the bandwidth C...

Страница 186: ...e measurement mode defines how often the data is measured In continuous mode the R S FPC measures the signal over and over until you stop it deliberately The measurement results are updated accordingly In single mode the R S FPC measures the signal once and then stops without updat ing the results any longer Another measurement starts only when you deliberately ini tiate it 1 Press the Sweep key t...

Страница 187: ...surement points Note that measurement times increase if you set a higher number of measurement points 1 Press the Sweep key to open the sweep menu 2 Select the Number of Points menu item 3 Enter the number of measurement points in the input field 18 6 Trace Configuration Access Trace Access Setup Config Overview Analysis selected settings Remote commands to configure traces Chapter 19 16 6 Trace o...

Страница 188: ...s the converted magnitude in and the phase in rho at the current marker position Real Imag Rho Shows the real and imaginary components at the current marker position R jX Shows the real and imaginary components of the impedance at the marker position The imaginary component is converted to inductance or capacitance Marker frequency and sign are taken into account G jB Shows the real and imaginary ...

Страница 189: ... with limit lines Chapter 19 16 8 Limit Lines on page 340 Limit line settings in the VNA application described elsewhere Display Line Chapter 14 11 Display Lines on page 129Chapter 14 9 1 Marker Positioning on page 120 Show Limit Line Selecting a limit line on page 131 Upper Limit Chapter 14 10 4 Marker Demodulation on page 128 Lower Limit Chapter 14 10 4 Marker Demodulation on page 128 Audio Beep...

Страница 190: ...90 Instrument Model and Command Processing 191 SCPI Command Structure 192 Command Sequence and Synchronization 200 Suffix Overview 202 19 1 1 Introduction The R S FPC supports two different interfaces for remote control LAN Interface The protocol is based on TCP IP and supports the VXI 11 standard USB Interface The connectors for both interfaces are on the rear panel of the R S FPCand allow for a ...

Страница 191: ...ating convenience The priority of remote control however is the predictability of the device status Therefore control programs should always define an initial device status for example with RST before implementing the required settings 19 1 1 1 LAN Interface To be integrated in a LAN the instrument is equipped with a standard LAN interface consisting of a connector a network interface and protocol...

Страница 192: ...UDP messages between the controller and the instrument are exchanged via open network computing ONC remote procedure calls RPC With XDR VXI 11 legal RPC messages are known as VXI 11 standard Based on this standard messages are exchanged between the controller and the instrument The messages are identical with SCPI commands They can be organized in four groups Program messages control command to th...

Страница 193: ... instrument of several controllers 19 1 2 Remote Control Connection The short and simple operating sequence below shows how to put the instrument into operation and quickly set its basic functions You can find out the current IP address for LAN operation in the setup menu Setup Instrument Setup In case of USB con nection the IP address is always 172 16 10 10 1 Connect the R S FPC to the LAN or dir...

Страница 194: ...ndividual components work independently and simultaneously They communicate with each other with so called messages Input unit with input buffer Command recognition Instrument hardware Output unit with output buffer Instrument settings database Status reporting system USB interface Ethernet USB interface Ethernet Figure 19 4 Instrument model in case of remote control 19 1 3 1 Input Unit The input ...

Страница 195: ...ister is set refer to STATus OPERation register The hardware executes the set tings and resets the bit again as soon as the new state has settled This fact can be used to synchronize command servicing Queries induce the data set management to send the desired data to the output unit 19 1 3 3 Output Unit The output unit collects the information requested by the controller which it receives from the...

Страница 196: ...ommands for this section DISPlay WINDow 1 4 MAXimize Boolean FORMat READings DATA type length HCOPy DEVice COLor Boolean HCOPy DEVice CMAP COLor RGB red green blue HCOPy IMMediate HCOPy ITEM ALL HCOPy ITEM LABel string HCOPy PAGE DIMensions QUADrant N HCOPy PAGE ORIentation LANDscape PORTrait HCOPy PAGE SCALe numeric value MMEMory COPY file_source file_destination SENSE BANDwidth BWIDth RESolution...

Страница 197: ... quadrant 2 Different numbering in remote control For remote control the suffix may differ from the number of the corresponding selec tion used in manual operation SCPI prescribes that suffix counting starts with 1 Suffix 1 is the default state and used when no specific suffix is specified Some standards define a fixed numbering starting with 0 If the numbering differs in manual operation and remo...

Страница 198: ...nk The parameters required for each command and the allowed range of values are specified in the command description Allowed parameters are Numeric Values 195 Special Numeric Values 196 Boolean Parameters 196 Text Parameters 197 Character Strings 197 Block Data 197 Numeric Values Numeric values can be entered in any form i e with sign decimal point and exponent Values exceeding the resolution of t...

Страница 199: ...e INFinity NINF represent the numeric values 9 9E37 or 9 9E37 respectively INF and NINF are only sent as instrument respon ses NAN Not A Number NAN represents the value 9 91E37 NAN is only sent as a instrument response This value is not defined Possible causes are the division of zero by zero the subtraction of infinite from infinite and the representation of miss ing values Example Setting comman...

Страница 200: ...mple a command using a block data parameter has the following structure FORMat READings DATA 45168xxxxxxxx The ASCII character introduces the data block The next number indicates how many of the following digits describe the length of the data block In the example the 4 follow ing digits indicate the length to be 5168 bytes The data bytes follow During the trans mission of these data bytes all end...

Страница 201: ...inition HCOPy PAGE ORIentation LANDscape PORTrait Command HCOP PAGE ORI LAND specifies landscape orientation Command HCOP PAGE ORI PORT specifies portrait orientation Mnemonics A selection of mnemonics with an identical effect exists for several commands These mnemonics are indicated in the same line they are separated by a vertical stroke Only one of these mnemonics needs to be included in the he...

Страница 202: ...d When abbreviating the command line the second command begins with the level below HCOP The colon after the semi colon is omitted The abbreviated form of the command line reads as follows HCOP ITEM ALL IMM Example HCOP ITEM ALL HCOP IMM A new command line always begins with the complete path 19 1 4 6 Responses to Queries A query is defined for each setting command unless explicitly specified othe...

Страница 203: ...ecuted If overlapping commands do have to be executed in a defined order e g in order to avoid wrong measurement results they must be serviced sequentially This is called synchronization between the controller and the instrument Setting commands within one command line even though they may be implemented as sequential commands are not necessarily serviced in the order in which they have been recei...

Страница 204: ...it for the corresponding action to occur Table 19 4 Synchronization using OPC OPC and WAI Com mand Action Programming the controller OPC Sets the Operation Complete bit in the ESR after all previous commands have been exe cuted Setting bit 0 in the ESE Setting bit 5 in the SRE Waiting for service request SRQ OPC Stops command processing until 1 is returned This occurs when all pending opera tions ...

Страница 205: ...a service request The service request indicates that the overlapped command has finished Event status register ESE 1 Set the OPC mask bit bit no 0 in the ESE ESE 1 2 Send the overlapped command without OPC OPC or WAI 3 Poll the operation complete state periodically with a timer using the sequence OPC ESR A return value LSB of 1 indicates that the overlapped command has finished 19 1 6 Suffix Overv...

Страница 206: ...nt status enable Sets the event status enable register to the specified value The query returns the con tents of the event status enable register in decimal form Parameters Value Range 0 to 255 ESR Event status read Returns the contents of the event status register in decimal form and then sets the reg ister to zero Return values Contents Range 0 to 255 Usage Query only IDN Identification Returns ...

Страница 207: ...n OPT Option identification query Queries the options included in the instrument For a list of all available options and their description refer to the data sheet Return values Options The query returns a list of all installed and activated options separated by commas where B number describes hardware options K number describes software options Usage Query only RST Reset Sets the instrument to a d...

Страница 208: ...tes a manual trigger signal This common command complements the commands of the TRIGger subsystem TRG corresponds to the INITiate IMMediate command Usage Event TST Self test query Initiates self tests of the instrument and returns an error code Return values ErrorCode integer 0 in decimal format An error occurred 0 No errors occurred Usage Query only WAI Wait to continue Prevents servicing of the ...

Страница 209: ...SYST PRES Usage Event Manual operation See Preset on page 355 SYSTem PRESet FACTory This command initiates an instrument reset back to factory settings Example Reset the R S FPC to its factory settings SYST PRES FACT Usage Event Manual operation See Reset on page 357 SYSTem PRESet MODE Mode This command selects the preset mode Parameters Mode DEFault Default preset state USER User defined preset s...

Страница 210: ...unny result set Manual operation See Preset Key on page 357 19 4 Network Connection SYSTem COMMunicate LAN ETHernet 207 SYSTem COMMunicate LAN GATeway 207 SYSTem COMMunicate LAN SUBMask 208 SYSTem COMMunicate SOCKet ADDRess 208 SYSTem COMMunicate SOCKet DHCP STATe 208 SYSTem COMMunicate LAN ETHernet This command queries the MAC address of the R S FPC Return values MacAddress String containing the ...

Страница 211: ...ion See LAN on page 356 SYSTem COMMunicate SOCKet ADDRess IPAddress This command defines the IP address of the R S FPC Prerequisites for this command Turn off DHCP SYSTem COMMunicate SOCKet DHCP STATe Parameters IPAddress String containing the IP address x x x x RST 172 76 68 24 Example Define IP address SYST COMM SOCK DHCP OFF SYST COMM SOCK ADDR 192 0 2 0 Manual operation See LAN on page 356 SYS...

Страница 212: ...3 SYSTem MEMory FREE 213 SYSTem MEMory TOTal 213 SYSTem STORe USED 213 SYSTem STORe FREE 213 SYSTem STORe TOTal 213 SYSTem MEMory USED 213 SYSTem TIME 214 SYSTem TZONee 214 UNIT n LENGth 214 DIAGnostic SERVice IDENtification MATerial This command queries the material number of the device Return values MaterialNumber String containing the material number of the connected device Example Query materi...

Страница 213: ...anel of the R S FPC Parameters Usage REFerence Input for external reference signal TRIGger Input for external trigger RST TRIGger Example Configure the BNC connector SYST BNC1 MODE TRIG Manual operation See Hardware on page 356 SYSTem DATE Year Month Day This command defines the date of the system calendar Parameters Year numeric value integer Range 2000 to 2099 Month numeric value integer Range 1...

Страница 214: ...e error queue The number of values depends on the length of the queue If the error queue is empty the command returns 0 No error Return values ErrorNumber Number that contains information about the error Negative num ber error as defined in the SCPI standard Positive number error that is specific to the R S FPC Example Query complete error queue SYST ERR CODE ALL Usage Query only SYSTem ERRor CODE...

Страница 215: ...efined in the SCPI standard Positive number error that is specific to the R S FPC ErrorDescription String containing a short error description Example Query error queue STAT ERR Usage Query only SYSTem HELP HEADers This command returns a list of all available remote control commands Return values Commands String containing all available remote control commands Example Return the syntax of all avai...

Страница 216: ...languages SYST LANG CAT Usage Query only Manual operation See Regional on page 356 SYSTem MEMory FREE SYSTem MEMory TOTal SYSTem STORe USED These command query the current state of the storage memory SYSTem STORe FREE Queries how much memory is available SYSTem STORe TOTal Queries the size of the memory SYSTem STORe USED Queries how much memory is currently used Return values MemorySize numeric va...

Страница 217: ...teger Range 0 to 59 Seconds numeric value integer Range 0 to 59 Example Change system time SYST TIME 12 30 30 Manual operation See Date and Time on page 356 SYSTem TZONee Hour Minutes This command defines a shift of the system time to select another time zone Parameters Hour numeric value integer Range 0 to 23 RST 0 Minutes numeric value integer Range 0 to 59 RST 0 Example Shift the time one hour ...

Страница 218: ...ness of the display backlight Parameters Brightness numeric value Range 0 to 1 RST 1 100 Example Define display brightness DISP BRIG 0 80 Manual operation See Display on page 356 SYSTem DISPlay UPDate STATe State This command turns the display during remote operation of the R S FPC on and off Parameters State ON OFF 1 0 RST ON Example Turn off display during remote operation SYST DISP UPD OFF 19 7...

Страница 219: ... of this sound with SYSTem BEEPer VOLume Parameters State ON 1 An overload situation on one of the inputs produces a sound OFF 0 An overload produces no sound RST OFF Example Turn on audio output in case of overload SYST BEEP POV ON Manual operation See Audio on page 356 SYSTem BEEPer VOLume Volume This command defines the volume of the system beeper Parameters Volume numeric value Range 0 to 1 RS...

Страница 220: ...224 SYSTem SET 225 SYSTem SET DISPlay 225 SYSTem SET LOCK 225 SYSTem SET UNLock 225 DISPlay n WINDow FETCh This command takes a screenshot of the current screen content and returns it as a jpg in binary format Suffix n irrelevant Return values Data numeric value Screenshot in binary data Example Query screenshot DISP FETC Usage Query only HCOPy DEVice LANGuage Format This command selects the file ...

Страница 221: ...dDiskSpace FreeDiskSpace FileName_1 Size File_1 ModificationDateFile_1 ModificationTime File_1 FileName_n SizeFile_n ModificationDate File_n ModificationTimeFile_n Example Open directory Limit Lines MMEM CDIR Public Limit Lines Return all files in Public Limit Lines MMEM CAT Usage Query only Manual operation See File Manager on page 359 MMEMory CATalog DIRectories This command queries the director...

Страница 222: ... that the folder and filename references in the string are case sensitive Destination String containing the path and name of the file including the file name extension If a file the same name already exists in the destination folder the command will return an error message The path and file name comply with Windows conventions Note that the folder and filename references in the string are case sen...

Страница 223: ... MMEM NAME Public funny Testfile txt Write block data MMEM DATA Public User Testfile txt 220Contents of the file Meaning of the parameters Public selects the target file 2 hash sign and length of the length information 20 bytes 2 digits 20 indicates the number of subsequent binary data bytes Contents of the file store 20 binary bytes characters to the file Transfer the contents of the file Testfil...

Страница 224: ... the string are case sensitive BlockData Data block with the following structure Hash sign number Length of the length information number Length information of the binary data number of bytes data Binary data with the indicated number of bytes Example Create a test file MMEM FILE Public funny test txt 220Contents of the file Manual operation See File Manager on page 359 MMEMory FILE DATE FileName ...

Страница 225: ...tring are case sensitive Hour numeric value integer Range 0 to 23 Minutes numeric value integer Range 0 to 59 Seconds numeric value integer Range 0 to 59 Example Change time stamp of result set file MMEM FILE TIME 1 Public result set 11 04 00 MMEMory LOAD STATe 1 FileName This command restores a dataset containing a previously saved measurement configu ration Parameters FileName String containing ...

Страница 226: ...tring containing the path and name of the destination file if the path of source and destination folder are the same but the file name is different the command only renames the file The path and file name comply with Windows conventions Note that the folder and filename references in the string are case sensitive Setting parameters SourceFile String containing the path and file name of the source ...

Страница 227: ... Directory String containing the path and name of the directory you want to delete The path and folder name comply with Windows conventions Note that the folder references in the string are case sensitive Example Delete a directory MMEM RDIR Public funny Usage Setting only Manual operation See File Manager on page 359 MMEMory STORe STATe 1 TargetFile This command saves the current measurement conf...

Страница 228: ...nhot of the current display contents and returns them in binary format Return values Data block data Contents of the dataset and a screenshot in binary format Example Query current dataset and screenshot SYST DISP SET Usage Query only SYSTem SET LOCK FileName This command adds write protection to a file Parameters FileName String containing the path and name of the dataset The path and file name c...

Страница 229: ...s not possible for time domain measurements span 0 For time domain measurements you have to turn off the tracking generator and either generate a signal whose frequency is fix or is coupled to the center fre quency Fixed frequency SOURce TG FREQuency Coupled to center frequency SOURce TG FREQuency AUTO Parameters State ON 1 Turns on the tracking generator The R S FPC generates a sig nal whose freq...

Страница 230: ...quency Prerequisites for this command Turn on signal source SOURce TG STATe Turn off tracking generator SOURce TG AUTO Parameters State ON 1 Generates a signal whose frequency corresponds to the center frequency signal source mode Coupled CW You can define the center frequency with SENSe FREQuency CENTer OFF 0 Generates a signal whose frequency remains the same signal source mode CW You can define...

Страница 231: ...e ON OFF 1 0 Configure the frequency characteristics of the output signal with one of the following commands CW signal SOURce TG FREQuency AUTO Tracking generator SOURce TG AUTO Configure the output level with SOURce TG POWer RST OFF Example Turn on signal source SOUR TG ON Manual operation See Off on page 367 19 10 Calibration CALibration n ABORt 228 CALibration n CONTinue 229 CALibration n MODE ...

Страница 232: ...t Open CAL CONT Connect Short to Port 1 Usage Query only Manual operation See Calibrate on page 397 Table 19 6 Return values Possible instructions for calibration Connect Open to Port 1 Connect the open to port 1 before resuming calibration Connect Short to Port 1 Connect the short to port 1 before resuming calibration Connect Load to Port 1 Connect the load to port 1 before resuming calibration C...

Страница 233: ... for S21 transmission measurements Return values Instructions String containing the instructions for the next calibration step You can find a list possible instructions in the table below Example Start full 1 port calibration MEAS MODE REFL CAL STAR S11C would return the instruction Connect Open to Port 1 Usage Query only Manual operation See Normalize S21 on page 367 See Calibrate on page 397 Tab...

Страница 234: ...nty must be anticipated Example Query calibration status CAL STAT Usage Query only Manual operation See Calibrate on page 397 SYSTem PRESet CALibration DISCard State This command turns the mechanism that discards or keeps user calibration after a pre set on and off Parameters State ON OFF 1 0 RST ON Example Discard correction values after preset SYST PRES CAL DISC ON Manual operation See Preset Ke...

Страница 235: ...ceiver on page 359 See Vector Network Analyzer on page 360 19 12 Remote Commands of the Spectrum Application Measurements and Result Displays 232 Frequency 245 Amplitude 252 Bandwidth 259 Sweep Control 261 Trigger 264 Traces 265 Marker 271 Marker Functions 282 Display Lines 288 Limit Lines 289 19 12 1 Measurements and Result Displays The following commands are required for power measurements Note ...

Страница 236: ...e R S FPC aborts current measurements and performs a series of test sweeps After it has finished the test it continues with the actual measurement Prerequisites for this command Select and perform a power measurement CALCulate n MARKer m FUNCtion POWer SELect Suffix n m irrelevant Example Adjust the reference level CALC MARK FUNC LEV ONCE Usage Event Manual operation See Level Adjust on page 362 S...

Страница 237: ...ommand Select a telecommunications standard for power measurements CALCulate n MARKer m FUNCtion POWer PRESet Note that the command only checks the parameters that are defined by the standard Suffix n m irrelevant Return values State 0 R S FPC settings violate a standard configuration 1 R S FPC settings comply with the standard Example Query compliance to the standard currently in use CALC MARK FU...

Страница 238: ...esults for measurements of the occupied band width The return value is the occupied bandwidth in Hz TDMA Returns the results for TDMA power measurements The return value is the power of the signal The unit depends on the scaling of the vertical axis logarithmic scaling returns the power in the currently selected unit see UNIT n POWer linear scaling returns the power in W Example Select occupied ba...

Страница 239: ...ment CALC MARK FUNC POW SEL CPOW Manual operation See Channel Power on page 361 See TDMA Power on page 361 See Occupied Bandwidth on page 361 CALCulate n MARKer m FUNCtion POWer STATe State This command turns a power measurement on and off Suffix n m irrelevant Parameters State ON 1 Turns on the power measurement OFF 0 Performs a basic spectrum measurement RST OFF 0 Example Turn on OBW measurement...

Страница 240: ...FUNCtion POWer SELect Suffix n m irrelevant Parameters Bandwidth numeric value RST 3 84 MHz Default unit Hz Example Define the channel bandwidth CALC MARK FUNC CPOW BAND 10MHZ Manual operation See Channel Bandwidth on page 362 CALCulate n MARKer m FUNCtion CPOWer MODE DisplayMode This command selects the display mode for channel power measurements Prerequisites for this command Select the channel ...

Страница 241: ...nnel power in a 1 Hz bandwidth on and off Prerequisites for this command Select the channel power measurement CALCulate n MARKer m FUNCtion POWer SELect Suffix n m irrelevant Parameters State ON OFF 1 0 RST OFF 0 Example Display the measured channel power in a 1 Hz bandwidth CALC MARK FUNC POW RES PHZ ON Manual operation See Power Display on page 362 19 12 1 3 Third Order Intermodulation The follo...

Страница 242: ...ALCulate n MARKer m FUNCtion TOI SEARchsignal Once This command searches for signals to determine the TOI Prerequisites for this command Turn on TOI measurement CALCulate n MARKer n FUNCtion TOI STATe Suffix n m irrelevant Setting parameters Once ONCE Example Search for signals CALC MARK FUNC TOI ON CALC MARK FUNC TOI SEAR Usage Setting only Manual operation See Search Signals on page 362 CALCulat...

Страница 243: ...h PCT 240 CALCulate n MARKer m FUNCtion OBW BANDwidth ChannelBW CALCulate n MARKer m FUNCtion OBAN BANDwidth ChannelBW This command defines the channel bandwidth for occupied bandwidth measurements Prerequisites for this command Turn on occupied bandwidth measurement CALCulate n MARKer m FUNCtion POWer SELect Suffix n m irrelevant Parameters ChannelBW numeric value RST 3 84 MHz Default unit Hz Exa...

Страница 244: ...al Prerequisites for this command Turn on TDMA power measurement CALCulate n MARKer m FUNCtion POWer SELect Suffix n m irrelevant Parameters BurstLength numeric value The value range depends on the current sweep time RST 470 us Default unit s Example Define the burst length CALC MARK FUNC TDMA BURS 80 US Manual operation See Burst Length on page 365 19 12 1 6 Harmonic Distortion The following remo...

Страница 245: ...on page 365 CALCulate n MARKer m FUNCtion HARMonics LIST This command queries the position of the harmonics To get a valid result you have to perform a complete sweep with synchronization to the sweep end between activating the delta marker and reading out the result This is only possible in single sweep mode Prerequisites for this command Turn on the harmonic distortion measurement CALCulate n MA...

Страница 246: ...onics PRESet Manual operation See Harmonics on page 365 CALCulate n MARKer m FUNCtion HARMonics PRESet This command optimizes the settings for the harmonic distortion measurement Prerequisites for this command Turn on the harmonic distortion measurement CALCulate n MARKer m FUNCtion HARMonics STATe on page 244 Suffix n m irrelevant Example Activate the harmonic distortion measurement CALC MARK FUN...

Страница 247: ... markers are automatically posi tioned on the trace One marker on the assumed carrier the other two on the sidebands The position of delta marker 2 must be a value larger than the value of marker 1 to the right of marker 1 When you move delta marker 2 delta marker 3 is automatically positioned on the opposite sideband to the left of marker 1 The distance relative to marker 1 for both delta markers...

Страница 248: ...f Suffix n m irrelevant Parameters State ON 1 Turns on the AM modulation depth measurement OFF 0 Performs a basic spectrum measurement RST OFF Example Turn on AM modulation depth measurement CALC MARK FUNC MDEP ON Manual operation See AM Modulation Depth on page 361 19 12 2 Frequency SENSe CHANnel 246 SENSe CHANnel TABLe SELect DOWNlink 246 SENSe CHANnel TABLe SELect UPLink 246 SENSe CHANnel TABLe...

Страница 249: ...s command selects a channel table configured for downlink signals Prerequisites for this command Select downlink mode SENSe CHANnel TABLe SET Parameters ChannelTable String containing the name of the channel table RST Example See SENSe CHANnel TABLe SELect Manual operation See Frequency Mode on page 368 See Signal Standard on page 398 SENSe CHANnel TABLe SELect UPLink ChannelTable This command sel...

Страница 250: ...hina chntab Both following commands replace the uplink channel table TV China with TV Italy CHAN TABL SEL Public Channel Tables TV TV Italy chntab or CHAN TABL SEL UPL Public Channel Tables TV TV Italy chntab Downlink channel tables are not affected by the commands sent so far Select a particular uplink channel e g 10 instead of a cen ter frequency FREQ INP MODE CHAN CHAN 10 To select an additiona...

Страница 251: ...er Frequency on page 398 SENSe FREQuency CENTer STEP StepSize This command defines the center frequency step size Prerequisites for this command Turn off step size coupling SENSe FREQuency CENTer STEP LINK Parameters StepSize numeric value Range 1 Hz to fmax RST AUTO 0 1 SPAN is switched on Default unit Hz Example Define a CF step size FREQ CENT STEP LINK OFF FREQ CENT STEP 10MHZ Manual operation ...

Страница 252: ...enter fre quency is not a frequency value but a channel number Parameters InputMode FREQuency Center frequency is defined in terms of a frequency in Hz You can define the frequency with SENSe FREQuency CENTer CHANnel Center frequency is defined in terms of a channel You can select the channel with SENSe CHANnel RST FREQ Example Set the frequency mode to work with channel tables FREQ INP MODE CHAN ...

Страница 253: ... on the start frequency to 100 GHz RST 0 Hz Default unit Hz Example Define a frequency offset FREQ OFFS 100MHZ Manual operation See Frequency Offset on page 368 See Frequency Offset on page 393 SENSe FREQuency SPAN Span This command defines the frequency span If you define a span of 0 Hz the R S FPC starts a measurement in the time domain Parameters Span numeric value Refer to the datasheet for de...

Страница 254: ...eric value Refer to the datasheet for details on the frequency range of your R S FPC RST 0 Hz Default unit Hz Example Define start frequency FREQ STAR 20MHZ Manual operation See Start Frequency on page 368 See Start Frequency on page 398 SENSe FREQuency STOP Frequency This command defines the stop frequency for measurements in the frequency domain span 0 Parameters Frequency numeric value Refer to...

Страница 255: ...td STATe 258 UNIT n POWer 258 DISPlay n WINDow TRACe t Y SPACing Scaling This command selects the scale of the y axis Suffix n irrelevant t irrelevant Parameters Scaling LOGarithmic Select a logarithmic scale When you select a logarithmic scale you can define the display range manually or automatically Manual DISPlay n WINDow TRACe t Y SCALe Automatic DISPlay n WINDow TRACe t Y SCALe ADJust LINear...

Страница 256: ... Y 110dB Manual operation See Range Ref Position on page 370 See Range Ref Position on page 380 DISPlay n WINDow TRACe t Y SCALe ADJust This command automatically scales the y axis Suffix n irrelevant t irrelevant Example Adjust the y axis DISP TRAC Y ADJ Usage Event Manual operation See Range Ref Position on page 370 See Auto Range on page 370 See Range Ref Position on page 380 See Auto Range on ...

Страница 257: ...command defines a reference level offset Suffix n irrelevant t irrelevant Parameters Offset numeric value Range 100 to 100 dB RST 0 dB Default unit dB Example Define a level offset DISP TRAC Y RLEV OFFS 10dB Manual operation See Range Ref Position on page 370 See Range Ref Position on page 380 DISPlay n WINDow TRACe t Y SCALe RPOSition Position This command defines the position of the reference le...

Страница 258: ...ll be adjusted if the currently defined reference level is not com patible to the selected attenuation Parameters Attenuation numeric value Range 0 to 40 Increment 5 RST 0 AUTO is ON Default unit dB Example Select attenuation INP ATT 30dB Manual operation See Attenuator on page 370 See Attenuator on page 381 See Attenuator on page 389 See Attenuator on page 393 INPut ATTenuation AUTO State This co...

Страница 259: ... State This command turns the preamplifier on and off Parameters State ON OFF 1 0 RST OFF 0 Example Turn on preamplifier INP GAIN STAT ON Manual operation See Preamplifier on page 370 See Preamplifier on page 381 See Preamplifier on page 389 See Preamplifier on page 393 INPut IMPedance Impedance This command selects the nominal input impedance The selected impedance is taken into account in all le...

Страница 260: ...e and the R S RAZ as the match ing pad INPut IMP 75 PAD RAZ Manual operation See Impedance on page 370 See Impedance on page 381 See Impedance on page 389 SENSe CORRection TRANsducer td SELect TransducerFactor This command selects a transducer factor Suffix td Transducer Parameters TransducerFactor String containing the file name of the transducer factor If the file does not exist the R S FPC crea...

Страница 261: ...ansducer on page 371 SENSe CORRection TRANsducer td STATe State This command turns a transducer factor on and off Prerequisites for this command Select a transducer SENSe CORRection TRANsducer td SELect Suffix td Transducer Parameters State ON OFF 1 0 RST OFF 0 Example Turn on primary transducer CORR TRAN1 SEL HE200A 20 200 pritrd CORR TRAN1 ON Turn on secondary transducer CORR TRAN2 SEL PreAmp se...

Страница 262: ...IDth VIDeo AUTO 260 SENSe BANDwidth VIDeo AUTO 260 SENSe BWIDth RESolution Bandwidth SENSe BANDwidth RESolution Bandwidth This command selects the resolution bandwidth or measurement bandwidth Effects of this command Turns off automatic selection of resolution bandwidth SENSe BANDwidth RESolution AUTO Parameters Bandwidth numeric value integer Value adjustable in 1 3 steps 1 Hz 3 Hz 10 Hz etc In a...

Страница 263: ...h VIDeo Bandwidth SENSe BANDwidth VIDeo Bandwidth This command selects the video bandwidth Effects of this command Turns off automatic selection of video bandwidth SENSe BANDwidth VIDeo AUTO Parameters Bandwidth numeric value integer Value adjustable in 1 3 steps 1 Hz 3 Hz 10 Hz etc Range 1 Hz to 3 MHz RST AUTO is set to ON Default unit Hz Example Select video bandwidth BAND VID 10KHZ Manual opera...

Страница 264: ...nd cannot be completed for example because a triggered sweep never receives a trigger the remote control program will never finish and the remote channel to the R S FPC is blocked for further commands In this case you must inter rupt processing on the remote channel first in order to abort the measurement To do so send a Device Clear command from the control instrument to the R S FPC on a parallel...

Страница 265: ...o the span and the resolution and video bandwidths Effects of this command Turn on automatic sweep time selection to couple the sweep time to the span and the RBW When you turn off automatic selection of the sweep time you can select one manually with SENSe SWEep TIME Parameters State ON OFF 1 0 RST ON 1 Example Turn on automatic selection of the sweep time SWE TIME AUTO ON Manual operation See Sw...

Страница 266: ...nd resets the trace in single sweep mode you can synchronize to the end of the measurement with OPC OPC or WAI In continuous sweep mode synchronization to the end of the mea surement is not possible Thus it is not recommended that you use continuous sweep mode in remote control as results like trace data or markers are only valid after a sin gle sweep end synchronization Example Start a single swe...

Страница 267: ...e a trigger delay TRIG SOUR EXT TRIG SLOP POS TRIG HOLD 500US Manual operation See Trigger on page 372 See Trigger on page 394 TRIGger SEQuence LEVel VIDeo TriggerLevel This command defines the level of the video trigger Prerequisites for this command Select span 0 SENSe FREQuency SPAN Select video trigger source TRIGger SEQuence SOURce Parameters TriggerLevel numeric value integer Range 0 to 100 ...

Страница 268: ...te No trigger is applied EXTernal Select an external trigger VIDeo Select the video trigger The video trigger is only available if span 0 SENSe FREQuency SPAN RST IMMediate Example Select external trigger TRIG SOUR EXT Manual operation See Trigger on page 372 19 12 7 Traces CALCulate n MATH t COPY MEMory 266 CALCulate n MATH t EXPRession DEFine 266 CALCulate n MATH t STATe 267 DISPlay n WINDow TRA...

Страница 269: ...n page 373 See Memory on page 383 See Memory on page 394 See Memory on page 401 CALCulate n MATH t EXPRession DEFine Expression This command defines the mathematical operation for the trace mathematics Prerequisites for this command Save a trace to the memory CALCulate n MATH t COPY MEMory Turn on trace mathematics CALCulate n MATH t STATe Suffix n irrelevant t irrelevant Parameters Expression IMP...

Страница 270: ...ow TRACe t MEMory STATe State This command turns the memory trace on and off Prerequisites for this command Add a trace to the memory CALCulate n MATH t COPY MEMory Suffix n irrelevant t Trace Parameters State ON OFF 1 0 RST OFF 0 Example Store trace 1 into memory and turn on memory trace DISP TRAC1 ON DISP TRAC1 MODE AVER CALC MATH1 COPY MEM DISP TRAC MEM ON Manual operation See Memory Traces on ...

Страница 271: ...tion about the trace modes see Selecting the trace mode on page 116 AVERage Average trace mode BLANk Blank trace mode MAXHold Max Hold trace mode MINHold Min Hold trace mode VIEW View trace mode WRITe Clear Write trace mode RST WRITe Example Select trace mode DISP TRAC MODE AVER Manual operation See Trace Mode on page 373 See Trace Mode on page 383 See Trace Mode on page 401 DISPlay n WINDow TRACe...

Страница 272: ... the data as 32 bit IEEE 754 floating point numbers in the definite length block format RST ASCii In REAL 32 format a string of return values would look like 42524 value 1 value 2 value n with 4 Number of digits of the following number of data bytes 4 in this example 2524 Number of following data bytes 2524 corresponds to the 631 sweep points of the R S FPC value 4 byte floating point value Exampl...

Страница 273: ... 1 Prerequisites for this command Select average trace mode DISPlay n WINDow TRACe t MODE Parameters SweepCount numeric value integer Range 0 to 999 RST 1 Example Average over 64 sweeps DISP TRAC MODE AVER SWE COUN 64 Turn on single sweep mode start the sweep and wait for its end INIT CONT OFF INIT WAI Manual operation See Trace Mode on page 373 See Trace Mode on page 383 See Trace Mode on page 40...

Страница 274: ...Culate n DELTamarker m MINimum PEAK 273 CALCulate n DELTamarker m STATe 273 CALCulate n DELTamarker m X 273 CALCulate n DELTamarker m X RELative 274 CALCulate n DELTamarker m Y 275 CALCulate n MARKer m AOFF 275 CALCulate n MARKer m FREQuency MODE 276 CALCulate n MARKer m FUNCtion CENTer 276 CALCulate n MARKer m FUNCtion REFerence 276 CALCulate n MARKer m FUNCtion STRack STATe 277 CALCulate n MARKe...

Страница 275: ...ta marker Suffix n irrelevant m Marker Example Move delta marker 2 to the next higher value CALC DELT2 MAX NEXT Usage Event Manual operation See Set To Next Peak on page 376 See Set To Next Peak on page 386 See Set To Next Peak on page 404 CALCulate n DELTamarker m MAXimum PEAK This command positions a delta marker on the current trace maximum If the delta marker is not active yet the command also...

Страница 276: ... suffix the R S FPC interprets this as delta marker 2 because the first marker has to be a normal marker If more than one normal marker 2 to 6 is already active the command turns these markers into delta markers If no delta marker is active yet the command activates the delta marker and positions it on the trace maximum Parameters State ON OFF 1 0 RST OFF 0 Example Turn on delta marker 3 or turn m...

Страница 277: ...tion of delta marker 2 CALC DELT2 X CALC DELT2 X REL Manual operation See Marker x on page 374 See Marker x on page 384 See Marker x on page 395 See Marker x on page 403 CALCulate n DELTamarker m X RELative Position This command positions a delta marker on a position relative to the reference marker If necessary the corresponding delta marker is activated first Suffix n irrelevant m Marker Paramet...

Страница 278: ...vant m Marker Return values Position In spectrum analyzer mode the unit depends on the unit you have set and the scaling of the vertical axis dB lin log for units DBM DBPW DBUV DBMV DBUA dB lin log for units WATT VOLT AMPere Example Turn on single sweep mode and delta marker 2 INIT CONT OFF CALC DELT2 ON Start a sweep and wait for its end INIT WAI Query the position of delta marker 2 CALC DELT2 X ...

Страница 279: ...nput as a channel number Example Select the frequency display mode CALC MARK FREQ MODE FREQ Manual operation See Marker Display on page 375 See Marker Display on page 385 CALCulate n MARKer m FUNCtion CENTer This command matches the center frequency to the frequency of a marker Suffix n irrelevant m Marker Example Match the center frequency to the frequency of marker 1 CALC MARK1 FUNC CENT Manual ...

Страница 280: ...R ON Manual operation See Marker Tracking on page 377 See Marker Tracking on page 386 See Marker Tracking on page 404 CALCulate n MARKer m MAXimum NEXT This command moves a marker to the next higher trace maximum If the marker is not active yet the command also turns on that marker Suffix n irrelevant m Marker Example Move marker 2 to the next higher value CALC MARK2 MAX NEXT Usage Event Manual op...

Страница 281: ...t marker Suffix n irrelevant m Marker Example Move marker 2 to the trace minimum CALC MARK2 MIN Usage Event Manual operation See Set To Minimum on page 376 See Set To Minimum on page 386 See Set To Minimum on page 404 CALCulate n MARKer m STATe State This command turns markers on and off If you do not use a suffix at MARKer marker 1 is turned on If one or more delta mark ers 2 to 6 are already act...

Страница 282: ...osition numeric value The unit depends on the measurement and marker input mode Hz for measurements in the frequency domain s for measurements in the time domain No unit for channel input mode CALCulate n MARKer m FREQuency MODE Example Position marker 2 to frequency 10 7 MHz CALC MARK2 X 10 7MHz Manual operation See Marker x on page 374 See Marker x on page 384 See Marker x on page 395 See Marker...

Страница 283: ...earch limits CALCulate n MARKer m X SLIMits slim STATe If you perform a measurement in zero span this command limits the evaluation range on the trace Suffix n m slim irrelevant Parameters SearchLimit numeric value The unit depends on the measurement Hz for frequency domain seconds for time domain Range The value range corresponds to the maximum span RST is set to the left diagram border when swit...

Страница 284: ...ry the corresponding marker is activated first To get a valid result you have to perform a complete sweep with synchronization to the sweep end between activating the delta marker and reading out the result This is only possible in single sweep mode Suffix n irrelevant m Marker Return values Position numeric value The unit depends on UNIT n POWer Example Turn on single sweep mode and marker 2 INIT...

Страница 285: ...you have to perform a complete sweep with synchronization to the sweep end to make sure that the R S FPC actually reaches the frequency you want to measure This is only possible in single sweep mode Prerequisites for this command Turn on the frequency counter CALCulate n MARKer m COUNt STATe Suffix n irrelevant m irrelevant Return values Frequency numeric value Default unit Hz Example See CALCulat...

Страница 286: ...m STATe Turn on marker demodulation CALCulate n MARKer m FUNCtion DEModulation STATe Select a frequency span 0 SENSe FREQuency SPAN For measurement in the time domain span 0 the command has no effect because demodulation is continuous Suffix n m irrelevant Parameters Time numeric value Range 100 ms to 500 s RST 500 ms Default unit s Example Configure marker demodulation FREQ SPAN 100MHZ CALC MARK ...

Страница 287: ...s marker demodulation on and off Prerequisites for this command Turn on a marker CALCulate n MARKer m STATe Suffix n m irrelevant Parameters State ON OFF 1 0 RST OFF 0 Example See CALCulate n MARKer m FUNCtion DEModulation HOLD Manual operation See Marker Demodulation on page 375 See Marker Demodulation on page 385 CALCulate n MARKer m FUNCtion NDBDown MarkerDistance This command defines the dista...

Страница 288: ...vant the n dB down marker function always uses marker 1 Return values Frequency frequency1 Absolute frequency of the n dB marker to the left of the refer ence marker in Hz frequency2 Absolute frequency of the n dB marker to the right of the refer ence marker in Hz Example See CALCulate n MARKer m FUNCtion NDBDown STATe Usage Query only Manual operation See Marker Mode on page 375 CALCulate n MARKe...

Страница 289: ...ry markers 3 dB below a reference marker CALC MARK FUNC NDBD 3 Query the frequency position of the n dB down markers would return e g 100000000 200000000 CALC MARK FUNC NDBD FREQ Query the measurement result would return e g 100000000 CALC MARK FUNC NDBD RES Manual operation See Marker Mode on page 375 CALCulate n MARKer m FUNCtion NOISe RESult This command queries the result of the noise measurem...

Страница 290: ...Mode on page 375 CALCulate n MARKer m FUNCtion NOISe STATe State This command turns the noise measurement marker function on and off You can query the results of the noise power density at the marker position with CALCulate n MARKer m FUNCtion NOISe RESult Suffix n irrelevant m Marker Only marker 1 M1 or delta marker 2 D2 are possible to select Parameters State ON OFF 1 0 RST OFF 0 Example See CAL...

Страница 291: ...s LinePosition numeric value You can use any unit you want the R S FPC then converts the unit to the currently selected unit If you omit a unit the R S FPC uses the currently selected unit RST STATe to OFF Default unit Example Position display line CALC DLIN STAT ON CALC DLIN 20dBm Manual operation See Display Line on page 373 See Display Line on page 402 CALCulate n DLINe STATe State This command...

Страница 292: ...mand turns the beeper that beeps if a limit line is violated on and off Suffix n irrelevant k Limit line Parameters State ON OFF 1 0 RST OFF 0 Example Activate the audio beep CALC LIM BEEP ON Manual operation See Audio Beep on page 374 See Audio Beep on page 384 See Audio Beep on page 391 See Audio Beep on page 402 CALCulate n LIMit k COMMent This command queries the description of a limit line Pr...

Страница 293: ... k UPPer SELect CALCulate n LIMit k UPPer THReshold Suffix n irrelevant k Limit line Parameters Name String containing the name of the limit line Note If a limit line with the same name already exists it will be overwritten Description String containing a description of the limit line X unit Hz s X scale ABSolute RELative Y unit DB DBM DBUV DBMV DBUVM DBUAM VSWR V W X_n numeric value Data points o...

Страница 294: ... k UPPer THReshold Suffix n irrelevant k Limit line Example Remove limit line CALC LIM2 DEL Manual operation See Upper Limit on page 374 See Lower Limit on page 374 See Upper Limit on page 384 See Lower Limit on page 384 See Upper Limit on page 402 See Lower Limit on page 402 CALCulate n LIMit k FAIL This command queries the result of a limit check To get a valid result you have to perform a compl...

Страница 295: ...r SELect LimitLine This command selects the lower limit line You can either select a limit line that is already stored on the internal memory or create a new one with CALCulate n LIMit k DEFine Suffix n irrelevant k Limit line Setting parameters LimitLine String containing the file name of the lower limit line Example Select the lower limit line FREQ SPAN 0HZ CALC LIM LOW SEL GSM_Lower rellim Usag...

Страница 296: ...e or define a threshold limit with one of the following commands CALCulate n LIMit k LOWer SELect CALCulate n LIMit k LOWer THReshold CALCulate n LIMit k UPPer SELect CALCulate n LIMit k UPPer THReshold Suffix n irrelevant k Limit line Parameters State ON OFF 1 0 RST OFF 0 Example Activate limit check CALC LIM UPP THR 70 CALC LIM STAT ON Manual operation See Show Limit Lines on page 374 CALCulate ...

Страница 297: ...ELect CALCulate n LIMit k LOWer THReshold CALCulate n LIMit k UPPer SELect CALCulate n LIMit k UPPer THReshold Suffix n irrelevant k Limit line Return values Unit Level unit of the limit line Example Query the level unit of a limit line CALC LIM UPP THR 70 CALC LIM UNIT Usage Query only CALCulate n LIMit k UPPer SELect LimitLine This command selects the upper limit line You can either select a lim...

Страница 298: ...imit line Parameters Level numeric value Unit depends on the unit you have currently selected for the ver tical axis Example Turn on threshold limit line CALC LIM UPP THR 10DBM Manual operation See Upper Limit on page 374 See Upper Limit on page 384 See Upper Limit on page 402 19 13 Remote Commands of the Receiver Application Measurement Configuration 295 Frequency 296 Amplitude 299 Bandwidth 299 ...

Страница 299: ...can measurements RST FIXed Example Select frequency scan FREQ MODE SCAN Manual operation See Bargraph on page 378 See Frequency Scan on page 378 TRACe DATA This command queries the trace data measurement results in graphical result dis plays Prerequisites for this command Select graphical result display CALCulate n FEED Return values Results Returns one value for each measurement point The type of...

Страница 300: ...value Default unit Hz Example Define a receiver frequency for bargraph measurement FREQ MODE FIX FREQ CENT 100MHZ Manual operation See Frequency on page 379 SENSe SCAN STARt Frequency This command defines the start frequency for a frequency scan Prerequisites for this command Select frequency scan SENSe FREQuency MODE Parameters Frequency numeric value Default unit Hz Example Define scan range wit...

Страница 301: ...equisites for this command Select frequency scan SENSe FREQuency MODE Parameters Frequency numeric value Default unit Hz Example Define scan range with measurement every 10 MHz FREQ MODE SCAN SCAN STAR 30MHZ SCAN STOP 100MHZ SCAN STEP 10MHZ Manual operation See Stop Frequency on page 379 SENSe SWEep SPACing Scale This command selects the scale of the x axis Parameters Scale LINear Linear scaling o...

Страница 302: ... Attenuation INPut ATTenuation INPut ATTenuation AUTO INPut ATTenuation MODE Impedance INPut IMPedance INPut IMPedance PAD Transducer SENSe CORRection TRANsducer td SELect SENSe CORRection TRANsducer td UNIT SENSe CORRection TRANsducer td STATe 19 13 4 Bandwidth Commands to configure the bandwidth described elsewhere Resolution bandwidth 3 dB SENSe BANDwidth RESolution SENSe BANDwidth RESolution C...

Страница 303: ...ISPR BW Auto on page 382 19 13 5 Sweep Control Commands to control the measurement described elsewhere Measurement control INITiate IMMediate Measurement type single continuous INITiate CONTinuous Measurement time SENSe SWEep TIME 19 13 6 Traces Commands to configure traces described elsewhere Trace mode DISPlay n WINDow TRACe t MODE Memory trace DISPlay n WINDow TRACe t MEMory STATe Data format o...

Страница 304: ... in form of a line trace with interpolation between the receiver frequencies POLYgon Shows the results in form of vertical lines at each receiver fre quency RST POLYgon Example Display a line trace FREQ MODE SCAN DISP TRAC STYL LIN Manual operation See Trace Style Lines on page 383 See Trace Style Polygon on page 383 TRACe DATA This command queries the trace data measurement results in graphical r...

Страница 305: ... on off CALCulate n MARKer m STATe CALCulate n MARKer m AOFF Marker input mode CALCulate n MARKer m FREQuency MODE Marker position CALCulate n MARKer m X CALCulate n MARKer m Y Marker position set to peak CALCulate n MARKer m MAXimum PEAK Marker position set to next peak CALCulate n MARKer m MAXimum NEXT Marker position set to minimum CALCulate n MARKer m MINimum PEAK Marker search range CALCulate...

Страница 306: ...tion HOLD CALCulate n MARKer m FUNCtion FIXed 303 CALCulate n MARKer m FUNCtion FIXed This command synchronizes the bargraph frequency to one of the marker frequencies in the frequency scan At the same the command switches to the fixed frequency measurement Suffix n m irrelevant Usage Event Manual operation See Marker To Fixed Freq on page 385 19 14 Remote Commands of the Analog Demodulation Measu...

Страница 307: ...esult display Suffix n irrelevant Parameters ResultDisplay XTIMe AM Graphical AM results XTIMe AMS Numerical AM results XTIMe FM Graphical FM results XTIMe FMS Numerical FM results RST XTIMe FMS Example Select graphical AM results CALC FEED XTIM AM Manual operation See AM Domain on page 387 See FM Domain on page 387 See Mod Trace on page 388 See Mod Summary on page 388 CALCulate n MARKer FUNCtion ...

Страница 308: ... index RMS Queries the RMS value of the modulation index Return values Result numeric value Default unit PCT Example Query average modulation index CALC FEED XTIM AMS CALC MARK FUNC ADEM AM MIDD Usage Query only CALCulate n MARKer FUNCtion ADEMod CARRier RESult This command queries the power of the signal carrier Suffix n irrelevant Return values Power numeric value Default unit dBm Example Query ...

Страница 309: ...s MeasType MIDDle Queries the average frequency deviation MPEak Queries the minimum frequency deviation PPEak Queries the maximum frequency deviation RMS Queries the RMS value of the frequency deviation Return values Result Default unit Hz Example Query average frequency deviation CALC FEED XTIM FMS CALC MARK FUNC ADEM FM MIDD Usage Query only CALCulate n MARKer FUNCtion ADEMod MINDex RESult This ...

Страница 310: ...unit PCT Example Query modulation rate CALC FEED XTIM FMS CALC MARK FUNC ADEM MRAT Usage Query only CALCulate n MARKer FUNCtion ADEMod SINad RESult This command queries the SINAD result Suffix n irrelevant Return values SINAD numeric value Default unit dB Example Query SINAD result CALC MARK FUNC SIN Usage Query only CALCulate n MARKer FUNCtion ADEMod THD RESult This command queries the THD result...

Страница 311: ...command queries the trace data measurement results in graphical result dis plays Prerequisites for this command Select graphical result display CALCulate n FEED Return values Results Returns one value for each measurement point The type of value depends on the measurement Hz for FM PCT for AM Example Query FM results CALC FEED XTIMe FM TRAC Usage Query only 19 14 2 Frequency Commands to configure ...

Страница 312: ... graphical results Suffix n irrelevant t irrelevant Parameters Scale numeric value integer only The unit depends on the result PCT for AM results 0 1 to 100 per grid division Hz for FM results 1 kHz to 1 MHz per grid division Example Define grid scale of AM results 50 percent per grid CALC FEED XTIM AM DISP TRAC Y PDIV 50 Manual operation See Deviation per Division on page 389 19 14 4 Bandwidth SE...

Страница 313: ...the reference deviation for FM signals Prerequisites for this command Select FM measurements CALCulate n FEED Parameters Deviation numeric value RST 100 kHz Default unit Hz Example Define reference deviation CALC FEED XTIM FMS ADEM BAND RDEV 75KHZ Manual operation See Reference Deviation on page 390 SENSe FILTer DEMPhasis STATe State This command turns the deemphasis filter on and off You can sele...

Страница 314: ...s Example Select 75 us time constant ADEM BAND DEM 300KHZ FILT DEMP ON FILT DEMP TCON 75US Manual operation See FM Broadcast on page 389 SENSe FILTer LPASs Filter This command selects the audio lowpass filter Parameters Filter DBW1 DBW10 DBW30 DBW100 Example Select audio lowpass filter FILT LPAS DBW10 Manual operation See Audio Lowpass on page 387 19 14 5 Sweep Control Commands to control the meas...

Страница 315: ...mmand removes a set of limit values from the measurement Limit check is no longer possible Prerequisites for this command Load a set of limit values CALCulate n ADEMod LIMit SELect Suffix n irrelevant Example Delete limit values CALC ADEM LIM DEL Usage Event Manual operation See Clear Limits on page 390 CALCulate n ADEMod LIMit FAIL This command queries the results of the limit check Prerequisites...

Страница 316: ...lays 313 Measurement Configuration 318 Frequency 320 Amplitude 320 Sweep Control 322 Trigger 322 Marker 323 19 15 1 Measurements and Result Displays CALCulate n FEED 313 CALCulate n MARKer FUNCtion DDEMod CARRier RESult 314 CALCulate n MARKer FUNCtion DDEMod CFDRift RESult 314 CALCulate n MARKer FUNCtion DDEMod CFERror RESult 315 CALCulate n MARKer FUNCtion DDEMod MDEPth RESult 315 CALCulate n MAR...

Страница 317: ...bols on page 392 See Modulation Depth Modulation Deviation on page 392 See Modulation Error on page 392 CALCulate n MARKer FUNCtion DDEMod CARRier RESult This command queries the carrier power of the measured signal Suffix n irrelevant Return values Power numeric value Default unit dBm Example Query carrier power CALC MARK FUNC DDEM CARR Usage Query only CALCulate n MARKer FUNCtion DDEMod CFDRift ...

Страница 318: ... MARKer FUNCtion DDEMod MDEPth RESult This command queries the modulation depth of the measured signal Prerequisites for this command Select ASK demodulation SENSe DDEMod Suffix n irrelevant Return values ModIndex numeric value Default unit PCT Example Query modulation depth CALC MARK FUNC DDEM MDEP Usage Query only CALCulate n MARKer FUNCtion DDEMod MDEViation RESult This command queries the freq...

Страница 319: ...Query magnitude error CALC MARK FUNC DDEM MERR Usage Query only CALCulate n MARKer FUNCtion DDEMod MINDex RESult This command queries the modulation index of the measured signal Prerequisites for this command Select ASK demodulation SENSe DDEMod Suffix n irrelevant Return values ModIndex numeric value Default unit PCT Example Query modulation index CALC MARK FUNC DDEM MIND Usage Query only CALCula...

Страница 320: ...surement This command selects the demodulation scheme of the signal you are measuring Parameters Measurement ASK Selects ASK modulation FSK Selects FSK modulation RST FSK Example Select measurement DDEM ASK Manual operation See ASK on page 391 See FSK on page 391 SENSe DDEMod FSK OFFSet This command queries the measured frequency deviation of an FSK signal Prerequisites for this command Select FSK...

Страница 321: ...rror returns one value for each symbol The unit is either Hz FSK or PCT ASK Example Query results TRAC Usage Query only 19 15 2 Measurement Configuration SENSe DDEMod BURSt STATe 318 SENSe DDEMod FILTer ALPHa 318 SENSe DDEMod FILTer NAME 319 SENSe DDEMod FILTer STATe 319 SENSe DDEMod SRATe 320 SENSe DDEMod TIME 320 SENSe DDEMod BURSt STATe State This command turns burst processing on and off Param...

Страница 322: ...ENSe DDEMod FILTer STATe GAUS Select a Gaussian filter RC Select a raised cosine filter RRC Selects a root raised cosine filter RST GAUS Example Select RRC filter DDEM FILT NAME RRC Manual operation See Demod Parameters on page 391 SENSe DDEMod FILTer STATe State This command turns the measurement filter on and off Parameters State OFF 0 Turns off the measurement filter for unfiltered measurements...

Страница 323: ...0 to depends on measurement filter RST 100 Example Define the number of symbols DDEM TIME 150 Manual operation See Demod Parameters on page 391 19 15 3 Frequency Commands to configure the frequency described elsewhere Center frequency SENSe FREQuency CENTer Frequency stepsize SENSe FREQuency CENTer STEP Frequency offset SENSe FREQuency OFFSet 19 15 4 Amplitude Commands to configure amplitude descr...

Страница 324: ... kHz to 1 MHz per grid division Example Define grid scale of AM results 50 percent per grid CALC FEED XTIM DDEM MEAS DISP TRAC Y PDIV 50 Manual operation See Deviation per Division on page 393 DISPlay n WINDow TRACe t Y SCALe RPOSition Position This command defines the position of the reference level on the display grid Prerequisites for this command Select ASK demodulation SENSe DDEMod Suffix n i...

Страница 325: ...This command defines the trigger level of the I Q power trigger Prerequisites for this command Select I Q power trigger TRIGger SEQuence SOURce Parameters Level numeric value RST 20 Default unit dBm Example Configure I Q power trigger TRIG SOUR IQP TRIG LEV IQP 10 Manual operation See Trigger on page 394 TRIGger SEQuence SOURce TriggerSource This command selects the trigger source Parameters Trigg...

Страница 326: ...ds to configure delta markers described elsewhere Delta marker state on off CALCulate n DELTamarker m STATe CALCulate n DELTamarker m AOFF Delta marker position CALCulate n DELTamarker m X CALCulate n DELTamarker m X RELative CALCulate n DELTamarker m Y 19 16 Remote Commands of the VNA Application Measurement Configuration 323 Amplitude 328 Frequency 335 Bandwidth 336 Sweep 336 Trace 337 Marker 33...

Страница 327: ...asurement LOSS Selects the 1 port cable loss measurement REFLection Selects the reflection S11 measurement TRANsmission Selects the transmission S21 measurement RST REFLection Example Select measurement MEAS MODE LOSS Manual operation See Reflection S11 on page 396 See Transmission S21 on page 396 See 1 Port Cable Loss on page 396 See Distance To Fault on page 396 MEASurement n FORMat Format This ...

Страница 328: ...6 1 2 DTF Configuration CALCulate n DTF CABLe PRESet 325 CALCulate n DTF DISTance STARt 326 CALCulate n DTF DISTance STOP 326 CALCulate n TRANsform DTFault PEAK COUNt 326 CALCulate n TRANsform DTFault PEAK DATA peak 327 CALCulate n TRANsform DTFault PEAK STATe 327 CALCulate n TRANsform DTFault PEAK THReshold 328 CALCulate n DTF CABLe PRESet CableModel This command selects a cable model Prerequisit...

Страница 329: ... Distance on page 398 CALCulate n DTF DISTance STOP StopDistance This command defines the end point distance of the DTF measurement Prerequisites for this command Select the DTF measurement MEASurement n MODE Suffix n irrelevant Parameters StopDistance numeric value The unit depends on your selection UNIT n LENGth RST 50 m Default unit m or ft Example Define stop distance for DTF measurement UNIT ...

Страница 330: ... on the number of DTF list entries You can query the number of entries with CALCulate n TRANsform DTFault PEAK COUNt Return values Distance ReturnLoss numeric value The first value represents the distance to the fault the second value the return loss measured at that distance Example Query second DTF list entry MEAS MODE DTF CALC TRAN DTF PEAK DATA2 Usage Query only CALCulate n TRANsform DTFault P...

Страница 331: ...mple Define threshold for DTF list MEAS MODE DTF CALC TRAN DTF PEAK THR 10 Manual operation See DTF List Threshold on page 397 19 16 2 Amplitude Commands to configure amplitude described elsewhere Auto Range DISPlay n WINDow TRACe t Y SCALe ADJust DISPlay n LOSS REFerence 329 DISPlay n LOSS REFerence POSition 329 DISPlay n LOSS Y SCALe 329 DISPlay n MAGNitude REFerence 330 DISPlay n MAGNitude REFe...

Страница 332: ...SS REFerence POSition RefPosition This command defines the position of the reference value for the cable loss measure ment format Each step shifts the reference position one grid line up or down Prerequisites for this command Select cable loss measurement MEASurement n MODE Select cable loss format MEASurement n FORMat Suffix n irrelevant Parameters RefPosition numeric value integer only RST 8 Exa...

Страница 333: ...his command Select reflection transmission or DTF measurement MEASurement n MODE Select return loss format MEASurement n FORMat Suffix n irrelevant Parameters RefValue numeric value RST 0 Default unit dB or Example Define reference value for return loss MEAS MODE REFL MEAS FORM MAGN DISP MAGN REF 50 Manual operation See Reference Level on page 399 DISPlay n MAGNitude REFerence POSition RefPosition...

Страница 334: ...ODE Select return loss format MEASurement n FORMat Select a logarithmic scale DISPlay n MAGNitude Y SPACing For a linear scale the range is always 100 Suffix n irrelevant Parameters DisplayRange numeric value RST 100 Default unit dB Example Define display range for return loss MEAS MODE REFL MEAS FORM MAGN DISP MAGN Y SPAC LOG DISP MAGN Y SCAL 50 Manual operation See Range Ref Position on page 399...

Страница 335: ... MEASurement n MODE Select phase format MEASurement n FORMat Suffix n irrelevant Parameters RefValue numeric value Range 100000 to 100000 RST 0 Default unit deg Example Define reference value for phase MEAS MODE REFL MEAS FORM PHAS DISP PHAS REF 360 Manual operation See Reference Level on page 399 DISPlay n PHASe REFerence POSition RefPosition This command defines the position of the reference val...

Страница 336: ...SP PHAS UNWR ON Manual operation See Phase on page 397 DISPlay n PHASe Y SCALe DisplayRange This command defines the range of the y axis for the phase measurement format Prerequisites for this command Select reflection measurement MEASurement n MODE Select phase format MEASurement n FORMat Suffix n irrelevant Parameters DisplayRange numeric value The number you enter is rounded up to the next poss...

Страница 337: ... a dis play range 1 6 Range 1 1 to 71 RST 1 21 Default unit dB Example Define display range for SWR 1 71 MEAS MODE DTF MEAS FORM VSWR DISP VSWR Y SCAL 50 Manual operation See Range Ref Position on page 399 DISPlay n VSWR Y SCALe MAXimum TopValue This command defines the top value of the vertical axis for the SWR measurement for mat Prerequisites for this command Select reflection or DTF measuremen...

Страница 338: ... VSWR DISP VSWR Y SCAL MIN 1 Manual operation See Range Ref Position on page 399 19 16 3 Frequency Commands to configure the frequency described elsewhere Center frequency SENSe FREQuency CENTer Span SENSe FREQuency SPAN Start frequency SENSe FREQuency STARt Stop frequency SENSe FREQuency STOP Frequency mode frequency channel SENSe FREQuency INPut MODE Channel selection SENSe CHANnel SENSe FREQuen...

Страница 339: ...ncy and span FREQ SETT COUP ENAB OFF Manual operation See Coupled Span on page 399 SENSe FREQuency SPAN AUTO State This command turns the automatic calculation of the ideal span on and off Parameters State ON OFF 1 0 RST OFF 0 Example Turn on automatic span FREQ SPAN AUTO ON Manual operation See Manual Span on page 369 See Manual Span on page 399 19 16 4 Bandwidth Commands to configure the bandwid...

Страница 340: ...erage are supported by the VNA application Memory trace CALCulate n MATH t COPY MEMory DISPlay n WINDow TRACe t MEMory STATe Data format of trace export FORMat DATA TRACe DATA 337 TRACe DATA This command queries the trace data measurement results in graphical result dis plays Return values Result The number of values depends on the number of measurement points The unit depends on the measurement a...

Страница 341: ...Culate n DELTamarker m Y Delta marker position set to peak CALCulate n DELTamarker m MAXimum PEAK Delta marker position set to next peak CALCulate n DELTamarker m MAXimum NEXT Delta marker position set to minimum CALCulate n DELTamarker m MINimum PEAK CALCulate n MARKer m MODE 338 CALCulate n MARKer m Y 339 DISPlay n IMPedance REFerence POSition 340 CALCulate n MARKer m MODE MarkerMode This comman...

Страница 342: ...st To get a valid result you have to perform a complete sweep with synchronization to the sweep end between activating the delta marker and reading out the result This is only possible in single sweep mode Suffix n irrelevant m Marker Return values Position numeric value The unit of the return value depends on the measurement mode and format you have selected In the Smith chart the return value al...

Страница 343: ...ference impedance MEAS MODE REFL MEAS FORM SMIT DISP IMP REF POS Manual operation See Marker Mode on page 403 19 16 8 Limit Lines Commands to configure limit lines described elsewhere Display lines CALCulate n DLINe CALCulate n DLINe STATe Limit line management CALCulate n LIMit k COMMent CALCulate n LIMit k DEFine CALCulate n LIMit k DELete CALCulate n LIMit k UNIT X CALCulate n LIMit k UNIT Y Li...

Страница 344: ... instrument returns to the controller It is not part of the status reporting system but determines the value of the MAV bit in the STB Structure of a SCPI Status Register 341 Overview of the Status Registers 344 Status Byte STB and Service Request Enable Register SRE 344 Event Status Register ESR and Event Status Enable Register ESE 345 STATus OPERation Register 346 STATus QUEStionable Register 34...

Страница 345: ...e EVENt bit is set PTR bit 0 the EVENt bit is not set This part can be written into and read at will Its contents is not affected by reading NTRansition part The Negative TRansition NTR part also acts as an edge detector When a bit of the CONDition part is changed from 1 to 0 the associated NTR bit decides whether the EVENt bit is set to 1 NTR Bit 1 the EVENt bit is set NTR Bit 0 the EVENt bit is ...

Страница 346: ...his part can be written into and read by the user at will Its contents is not affected by reading Sum bit As indicated above the sum bit is obtained from the EVENt and ENABle part for each register The result is then entered into a bit of the CONDition part of the higher order register The instrument automatically generates the sum bit for each register Thus an event e g a PLL that has not locked ...

Страница 347: ...ed reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved not used QUEStionable LIMit 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 reserved reserved IF_Overload reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved not used QUEStionable POWer Figure 19 6 Overview of the status registers 19 17 3 Stat...

Страница 348: ...er which can be read This bit can be used to enable data to be automatically read from the instrument to the controller 5 ESB bit Sum bit of the event status register It is set if one of the bits in the event status register is set and enabled in the event status enable register Setting of this bit indicates a serious error which can be specified in greater detail by polling the event status regis...

Страница 349: ... 200 and 300 which denotes the error in greater detail is entered into the error queue 5 Command Error This bit is set if a command is received which is undefined or syntactically incorrect An error message with a number between 100 and 200 which denotes the error in greater detail is entered into the error queue 6 Unused 7 Power On supply voltage on This bit is set on switching on the instrument ...

Страница 350: ...ormation about the reference frequency It can be read using the commands STATus QUEStionable LIMit FREQuency and STATus QUEStionable FREQuency EVENt Table 19 12 Meaning of bits in STATus QUEStionable FREQuency register Bit number Meaning 0 to 7 Unused 8 EXTernal REFerence This bit is set if an external reference is used 9 to 14 Unused 15 This bit is always 0 19 17 8 STATus QUEStionable LIMit Regis...

Страница 351: ... Service request Under certain circumstances the instrument can send a service request SRQ to the controller Usually this service request initiates an interrupt at the controller to which the control program can react appropriately As evident from Fig 1 4 an SRQ is always initiated if one or several of bits 2 3 4 5 or 7 of the status byte are set and enabled in the SRE Each of these bits combines ...

Страница 352: ... pattern of the queried register This number is evaluated by the controller program Queries are usually used after an SRQ in order to obtain more detailed information on the cause of the SRQ Error queue query Each error state in the instrument leads to an entry in the error queue The entries of the error queue are detailed plain text error messages that can be displayed via man ual operation using...

Страница 353: ...es yes yes 1 The first command in a command line that immediately follows a PROGRAM MESSAGE TERMINA TOR clears the output buffer 19 17 12 Remote Commands of the Status Reporting System The following commands control the status reporting system RST does not influence the status registers The OPERation status register contains information about the calibration status of the instrument The QUEStionab...

Страница 354: ...ion 354 STATus QUEStionable PTRansition 354 FORMat SREGister Format This command selects the data format for all queries of the status register Parameters Format ASCii Returns the data as ASCii bytes in NR1 format BINary Returns the data in binary format preceded by B HEXadecimal Returns the data in hexadecial format preceded by H OCTal Returns the data in octal format preceded by Q RST ASCii Exam...

Страница 355: ... the EVENt section Return values Event Usage Query only STATus OPERation ENABle SumBit This command controls the ENABle part of the OPERation register The ENABle part allows true conditions in the EVENt part of the status register to be reported in the summary bit If a bit is 1 in the enable register and its associated event bit transitions to true a positive transition will occur in the summary b...

Страница 356: ...Tus QUEStionable EVENt This command reads out the EVENt section of the QUEStionable register The command at the same time deletes the contents of the EVENt section Return values Condition Usage Query only STATus QUEStionable FREQuency CONDition STATus QUEStionable LIMit CONDition STATus QUEStionable POWer CONDition STATus QUEStionable CONDition This command reads out the CONDition section of the Q...

Страница 357: ...e TRansition part of the QUEStionable register Setting a bit causes a 1 to 0 transition in the corresponding bit of the associated regis ter The transition also writes a 1 into the associated bit of the corresponding EVENt register Parameters SumBit numeric value integer Range 0 to 65535 STATus QUEStionable FREQuency PTRansition SumBit STATus QUEStionable LIMit PTRansition SumBit STATus QUEStionab...

Страница 358: ... Demodulation 387 Function Reference Digital Demodulation 391 Function Reference Vector Network Analyzer 395 20 1 Function Reference Setup Access Setup Preset 355 Instrument Setup 355 User Preference 357 20 1 1 Preset Access Preset Preset 355 Preset See Presetting the system on page 37 Remote command SYSTem PRESet on page 206 20 1 2 Instrument Setup Access Setup Instrument Setup Hardware 356 LAN 3...

Страница 359: ...mmand not supported Date and Time See Chapter 9 3 Date and Time on page 41 Remote command Date SYSTem DATE on page 210 Time SYSTem TIME on page 214 Time zone SYSTem TZONee on page 214 Regional See Chapter 9 4 Regional Settings on page 42 Remote command Language SYSTem LANGuage on page 213 Language list SYSTem LANGuage CATalog on page 213 Date format DISPlay DATE FORMat on page 210 Display See Chap...

Страница 360: ...58 Documentation 358 Site See Defining meta information for datasets on page 49 Remote command not supported Preset Key See Chapter 8 Preset on page 37 Remote command Preset mode SYSTem PRESet MODE on page 206 Preset dataset SYSTem PRESet USER on page 207 Discard calibration data SYSTem PRESet CALibration DISCard on page 231 Working Directory See Changing the default directory to store data on pag...

Страница 361: ...rted 20 2 Function Reference Data Management Access Save Recall Save 358 Recall 358 Recall Screenshot 358 Wizard 358 File Manager 359 Save See Saving datasets on page 48 Remote command MMEMory STORe STATe on page 224 Recall See Restoring datasets on page 50 Remote command MMEMory LOAD STATe on page 222 Recall Screenshot See Previewing screenshots on page 51 Remote command MMEMory LOAD STATe on pag...

Страница 362: ... MDIRectory on page 223 Move file MMEMory MOVE on page 223 Delete directory MMEMory RDIRectory on page 224 20 3 Function Reference Mode Selection Access Mode Spectrum 359 Analog Demod 359 Digital Demod 359 Receiver 359 Vector Network Analyzer 360 Spectrum See Selecting the spectrum application on page 66 Remote command INSTrument SELect on page 231 Analog Demod See Selecting the analog demodulatio...

Страница 363: ...surement Menu AM Modulation Depth 366 Measurement Menu Occupied Bandwidth 366 Measurement Menu Signal Source 367 Frequency Menu 368 Span Menu 369 Amplitude Menu 369 Bandwidth Menu 371 Sweep Menu 371 Trace Menu 372 Lines Menu 373 Marker Menu 374 Marker To Menu 376 20 4 1 Measurement Menu Measurement Mode Access Meas Measurement Mode Spectrum 360 Channel Power 361 Third Order Intermod 361 Spectrogra...

Страница 364: ...not supported TDMA Power See Selecting the TDMA power measurement on page 76 Remote command Selection CALCulate n MARKer m FUNCtion POWer SELect on page 235 State CALCulate n MARKer m FUNCtion POWer STATe on page 236 Result CALCulate n MARKer m FUNCtion POWer RESult on page 234 Harmonic Distortion See Selecting the harmonic distortion measurement on page 78 Remote command CALCulate n MARKer m FUNC...

Страница 365: ...e command CALCulate n MARKer m FUNCtion CPOWer BANDwidth on page 237 Power Unit See Selecting the unit for power display on page 72 Remote command CALCulate n MARKer m FUNCtion CPOWer UNIT on page 238 Power Display See Measuring the maximum channel power on page 71 and Measuring the channel power density on page 72 Remote command Maximum CALCulate n MARKer m FUNCtion CPOWer MODE on page 237 Densit...

Страница 366: ... Save 363 Clear 363 Hold 363 Settings See Chapter 14 2 7 2 Color Definition on page 87 Remote command not supported Playback See Chapter 14 2 7 3 Spectrogram Playback on page 90 Remote command not supported Full Screen See Displaying the spectrogram in full screen on page 86 Remote command not supported Save See Saving spectrogram data on page 90 Remote command not supported Clear See Resetting th...

Страница 367: ...itching back to active spectrogram recording on page 93 Remote command not supported Full Screen See Displaying the spectrogram in full screen on page 86 Remote command not supported Save See Saving spectrogram data on page 90 Remote command not supported Recall See Restoring a spectrogram on page 91 Remote command not supported Time Line x See Working with time lines in playback mode on page 91 R...

Страница 368: ...rst length on page 77 Remote command CALCulate n MARKer m FUNCtion TDMA BURSt on page 241 20 4 7 Measurement Menu Harmonic Distortion Access Meas Measurement Mode Harmonic Distortion Adjust Setting 365 Harmonics 365 Adjust Setting See Optimizing measurement settings on page 79 Remote command CALCulate n MARKer m FUNCtion HARMonics PRESet on page 243 Harmonics See Defining the number of harmonics o...

Страница 369: ...ol also see Chapter 14 9 1 Marker Positioning on page 120 Remote command CALCulate n MARKer m FUNCtion MDEPth RESult on page 244 20 4 9 Measurement Menu Occupied Bandwidth Access Meas Measurement Mode Occupied Bandwidth Standard 366 Level Adjust 366 Channel Bandwidth 366 Power Bandwidth 367 Standard See Selecting a standard on page 83 Remote command CALCulate n MARKer m FUNCtion POWer PRESet on pa...

Страница 370: ... S21 367 Normalization S21 368 Off See Selecting the output frequency on page 52 Remote command SOURce TG STATe on page 228 CW See Selecting the output frequency on page 52 Remote command SOURce TG FREQuency on page 226 Coupled CW See Selecting the output frequency on page 52 Remote command SOURce TG FREQuency AUTO on page 227 Tracking Generator See Selecting the output frequency on page 52 Remote...

Страница 371: ...ENTer on page 248 Center Freq Step Size See Defining a frequency step size on page 94 Remote command Mode SENSe FREQuency CENTer STEP LINK on page 248 Manual step size SENSe FREQuency CENTer STEP on page 248 Start Frequency See Defining a start and stop frequency on page 97 Remote command SENSe FREQuency STARt on page 251 Stop Frequency See Defining a start and stop frequency on page 97 Remote com...

Страница 372: ...st Span 369 Manual Span See Defining the frequency span on page 96 Remote command State SENSe FREQuency SPAN AUTO on page 336 Span SENSe FREQuency SPAN on page 250 Full Span See Defining the frequency span on page 96 Remote command SENSe FREQuency SPAN FULL on page 251 Zero Span See Defining the frequency span on page 96 Remote command SENSe FREQuency SPAN on page 250 Last Span See Defining the fr...

Страница 373: ...ge 253 Reference position DISPlay n WINDow TRACe t Y SCALe RPOSition on page 254 Reference offset DISPlay n WINDow TRACe t Y SCALe RLEVel OFFSet on page 254 Auto Range See Defining a display range on page 104 Remote command DISPlay n WINDow TRACe t Y SCALe ADJust on page 253 Unit See Selecting the display unit on page 103 Remote command UNIT n POWer on page 258 Preamplifier See Turning the preampl...

Страница 374: ... 20 4 14 Bandwidth Menu Access BW RBW Manual 371 RBW Auto 371 VBW Manual 371 VBW Auto 371 RBW Manual See Setting the resolution bandwidth on page 107 Remote command SENSe BANDwidth RESolution on page 259 RBW Auto See Setting the resolution bandwidth on page 107 Remote command SENSe BANDwidth RESolution AUTO on page 260 VBW Manual See Setting the video bandwidth on page 109 Remote command SENSe BAN...

Страница 375: ...to See Defining the sweep time on page 110 Remote command SENSe SWEep TIME AUTO on page 262 Sweep Time Manual See Defining the sweep time on page 110 Remote command SENSe SWEep TIME on page 261 Trigger See Selecting the trigger source on page 112 and Defining a trigger delay on page 113 Remote command Trigger source TRIGger SEQuence SOURce on page 265 Trigger level video TRIGger SEQuence LEVel VID...

Страница 376: ...Tector t FUNCtion AUTO on page 270 Memory Traces See Working with memory traces on page 117 Remote command Copy trace CALCulate n MATH t COPY MEMory on page 266 Memory trace state DISPlay n WINDow TRACe t MEMory STATe on page 267 Trace Math See Using trace mathematics on page 118 Remote command State CALCulate n MATH t STATe on page 267 Operation CALCulate n MATH t EXPRession DEFine on page 266 20...

Страница 377: ... Threshold line CALCulate n LIMit k LOWer THReshold on page 292 Custom line CALCulate n LIMit k LOWer SELect on page 292 Removal CALCulate n LIMit k DELete on page 291 Limit check CALCulate n LIMit k FAIL on page 291 Audio Beep See Performing limit checks on page 132 Remote command CALCulate n LIMit k BEEP STATe on page 289 20 4 18 Marker Menu Access Mkr Marker x 374 Marker Type 375 Marker Mode 37...

Страница 378: ...UNt FREQuency on page 282 n dB down CALCulate n MARKer m FUNCtion NDBDown STATe on page 286 n dB CALCulate n MARKer m FUNCtion NDBDown on page 284 n dB down frequency CALCulate n MARKer m FUNCtion NDBDown FREQuency on page 285 n dB down result CALCulate n MARKer m FUNCtion NDBDown RESult on page 285 Marker Demodulation See Chapter 14 10 4 Marker Demodulation on page 128 Remote command State CALCul...

Страница 379: ...ker CALCulate n MARKer m MAXimum PEAK on page 277 Delta marker CALCulate n DELTamarker m MAXimum PEAK on page 272 Set To Next Peak See Positioning markers automatically on page 123 Remote command Marker CALCulate n MARKer m MAXimum NEXT on page 277 Delta marker CALCulate n DELTamarker m MAXimum NEXT on page 272 Set To Minimum See Positioning markers automatically on page 123 Remote command Marker ...

Страница 380: ...LTamarker Search Range See Defining marker search range on page 124 Remote command Search range CALCulate n MARKer m X SLIMits slim STATe on page 280 Left limit CALCulate n MARKer m X SLIMits slim LEFT on page 279 Right limit CALCulate n MARKer m X SLIMits slim RIGHt on page 280 20 5 Function Reference Receiver Application Access Mode Receiver Measurement Menu 377 Frequency Menu 378 Amplitude Menu...

Страница 381: ...ements Remote command DISPlay n WINDow TRACe t STATe on page 268 Show Trace 2 See Displaying a second trace on page 137 Only for frequency scans Remote command DISPlay n WINDow TRACe t STATe on page 268 Detector See Chapter 15 6 Trace Configuration on page 144 Remote command SENSe DETector t FUNCtion on page 300 Refresh Max Hold See Resetting the max hold on page 138 Remote command DISPlay BARGrap...

Страница 382: ...STEP on page 297 Start Frequency See Defining a scan range on page 140 Remote command SENSe SCAN STARt on page 297 Stop Frequency See Defining a scan range on page 140 Remote command SENSe SCAN STOP on page 298 Full Scan See Defining a scan range on page 140 Remote command not supported Frequency Mode See Using channel tables on page 139 and Performing a channel scan on page 140 Remote command Mod...

Страница 383: ...2 Frequency scan Defining a display range on page 104 Defining the position of the reference level on page 100 Defining a reference offset on page 100 Remote command Scale y axis DISPlay n WINDow TRACe t Y SPACing on page 252 Range y axis DISPlay n WINDow TRACe t Y SCALe on page 252 Range automatic DISPlay n WINDow TRACe t Y SCALe ADJust on page 253 Reference position DISPlay n WINDow TRACe t Y SC...

Страница 384: ...ance See Selecting the input impedance on page 98 Remote command Impedance INPut IMPedance on page 256 Matching pad INPut IMPedance PAD on page 257 Transducer See Selecting transducer factors on page 105 Remote command Selection SENSe CORRection TRANsducer td SELect on page 257 State SENSe CORRection TRANsducer td STATe on page 258 20 5 4 Bandwidth Menu Access BW RBW Manual 381 CISPR BW Manual 381...

Страница 385: ...ement mode on page 144 Remote command Scan mode INITiate CONTinuous on page 262 Start scan INITiate IMMediate on page 263 Single Scan See Selecting the measurement mode on page 144 Remote command Scan mode INITiate CONTinuous on page 262 Start scan INITiate IMMediate on page 263 20 5 6 Trace Menu Access Trace Select Trace 382 Trace Mode 383 Detector 383 Memory 383 Trace Memory 383 Trace Style Line...

Страница 386: ...ory See Working with memory traces on page 117 Remote command CALCulate n MATH t COPY MEMory on page 266 Trace Memory See Working with memory traces on page 117 Remote command DISPlay n WINDow TRACe t MEMory STATe on page 267 Trace Style Lines See Selecting the trace style on page 137 Remote command DISPlay WINDow TRACe STYLe on page 301 Trace Style Polygon See Selecting the trace style on page 13...

Страница 387: ...ines on page 132 Remote command Threshold line CALCulate n LIMit k LOWer THReshold on page 292 Custom line CALCulate n LIMit k LOWer SELect on page 292 Removal CALCulate n LIMit k DELete on page 291 Limit check CALCulate n LIMit k FAIL on page 291 Select Trace x Selecting a trace for the limit check on page 145 Remote command not supported Audio Beep See Performing limit checks on page 132 Remote ...

Страница 388: ...r To Fixed Freq See Synchronizing the bargraph frequency and marker position on page 146 Only for frequency scan Remote command CALCulate n MARKer m FUNCtion FIXed on page 303 Marker Demodulation See Chapter 14 10 4 Marker Demodulation on page 128 Remote command State CALCulate n MARKer m FUNCtion DEModulation STATe on page 284 Modulation CALCulate n MARKer m FUNCtion DEModulation SELect on page 2...

Страница 389: ...age 277 Delta marker CALCulate n DELTamarker m MAXimum NEXT on page 272 Set To Minimum See Positioning markers automatically on page 123 Remote command Marker CALCulate n MARKer m MINimum PEAK on page 278 Delta marker CALCulate n DELTamarker m MINimum PEAK on page 273 All Markers To Peak See Positioning markers automatically on page 123 Remote command not supported Center Marker Level Marker See P...

Страница 390: ...ts slim RIGHt on page 280 20 6 Function Reference Analog Demodulation Access Mode Analog Demod Measurement Menu 387 Frequency Menu 388 Amplitude Menu 388 Bandwidth Menu 389 Sweep Menu 390 Lines Menu 390 20 6 1 Measurement Menu Access Meas AM Domain 387 FM Domain 387 Audio Lowpass 387 Mod Trace 388 Mod Summary 388 AM Domain See Selecting the measurement on page 147 Remote command CALCulate n FEED o...

Страница 391: ...nter Freq Step Size 388 Center Frequency See Defining a center frequency on page 94 Remote command SENSe FREQuency CENTer on page 248 Center Freq Step Size See Defining a frequency step size on page 94 Remote command SENSe FREQuency CENTer STEP on page 248 20 6 3 Amplitude Menu Access Ampt Reference Level 388 Deviation per Division 389 Scale Adjust 389 Preamplifier 389 Attenuator 389 Impedance 389...

Страница 392: ...N STATe on page 256 Attenuator See Defining RF attenuation on page 101 Remote command Attenuation INPut ATTenuation on page 255 Automatic attenuation INPut ATTenuation AUTO on page 255 Attenuation mode INPut ATTenuation MODE on page 256 Impedance See Selecting the input impedance on page 98 Remote command Impedance INPut IMPedance on page 256 Matching pad INPut IMPedance PAD on page 257 20 6 4 Ban...

Страница 393: ...de on page 156 Remote command Measurement mode INITiate CONTinuous on page 262 Start measurement INITiate IMMediate on page 263 Single Measurement See Selecting the measurement mode on page 156 Remote command Sweep measurement INITiate CONTinuous on page 262 Start measurement INITiate IMMediate on page 263 20 6 6 Lines Menu Access Lines Select Limits 390 Clear Limits 390 Audio Beep 391 Select Limi...

Страница 394: ...Meas ASK 391 FSK 391 Demod Parameters 391 Standard 392 Eye Diagram 392 Symbols 392 Modulation Depth Modulation Deviation 392 Modulation Error 392 ASK See Selecting the measurement on page 159 Remote command SENSe DDEMod on page 317 FSK See Selecting the measurement on page 159 Remote command SENSe DDEMod on page 317 Demod Parameters Selecting the filter type on page 164 Defining the symbol rate on...

Страница 395: ...cting the result display on page 160 Remote command CALCulate n FEED on page 313 Symbols See Selecting the result display on page 160 Remote command CALCulate n FEED on page 313 Modulation Depth Modulation Deviation See Selecting the result display on page 160 Remote command CALCulate n FEED on page 313 Modulation Error See Selecting the result display on page 160 Remote command CALCulate n FEED o...

Страница 396: ...Level See Defining a reference level on page 99 Remote command DISPlay n WINDow TRACe t Y SCALe RLEVel on page 253 Deviation per Division See Adjusting the scale of the y axis on page 167 Remote command DISPlay n WINDow TRACe t Y SCALe PDIVision on page 321 Ref Position See Defining the position of the reference ASK signals on page 167 Only for ASK measurements Remote command DISPlay n WINDow TRAC...

Страница 397: ...ode on page 156 Remote command Sweep measurement INITiate CONTinuous on page 262 Start measurement INITiate IMMediate on page 263 Trigger See Selecting the trigger source on page 112 Defining a trigger delay on page 113 and Using the I Q power trigger on page 169 Remote command Trigger source TRIGger SEQuence SOURce on page 322 I Q power TRIGger SEQuence LEVel IQPower on page 322 Trigger slope ext...

Страница 398: ...Delta marker state CALCulate n DELTamarker m STATe on page 273 Delta marker position x axis CALCulate n DELTamarker m X on page 273 Delta marker position relative CALCulate n DELTamarker m X RELative on page 274 Delta marker position y axis CALCulate n DELTamarker m Y on page 275 Marker Type See Selecting the marker type on page 122 Remote command With corresponding syntax MARKer or DELTamarker Al...

Страница 399: ...F List Threshold 397 Reflection S11 See Measuring the reflection on page 172 Remote command MEASurement n MODE on page 324 Transmission S21 See Measuring the transmission on page 171 Remote command MEASurement n MODE on page 324 1 Port Cable Loss See Measuring the cable loss on page 173 Remote command MEASurement n MODE on page 324 Distance To Fault See Measuring the distance to fault on page 174 ...

Страница 400: ...DTF Configuration on page 177 Distance to fault measurements only Select Cable Model DTF Config See Selecting a predefined cable model on page 177 Remote command CALCulate n DTF CABLe PRESet on page 325 Clear Cable Model DTF Config See Selecting a predefined cable model on page 177 Remote command CALCulate n DTF CABLe PRESet on page 325 Define User Model DTF Config See Creating a custom cable mode...

Страница 401: ...on page 326 Center Frequency See Defining a center frequency on page 94 Remote command SENSe FREQuency CENTer on page 248 Start Frequency See Defining a start and stop frequency on page 97 Remote command SENSe FREQuency STARt on page 251 Stop Frequency See Defining a start and stop frequency on page 97 Remote command SENSe FREQuency STOP on page 251 Signal Standard See Working with channel tables ...

Страница 402: ...mplitude Menu Access Ampt Reference Level 399 Range Ref Position 399 Auto Range 400 Full Scale 400 Reference Level See Defining the reference value on page 181 Remote command Cable loss format DISPlay n LOSS REFerence on page 329 Return loss format DISPlay n MAGNitude REFerence on page 330 Phase format DISPlay n PHASe REFerence on page 332 Range Ref Position See Defining the position of the refere...

Страница 403: ... command DISPlay n WINDow TRACe t Y SCALe ADJust on page 253 Full Scale See Defining the display range on page 182 Remote command not supported 20 8 5 Bandwidth Menu Access BW RBW Manual 400 RBW Auto 400 RBW Manual See Defining the measurement bandwidth on page 182 Remote command SENSe BANDwidth RESolution on page 259 RBW Auto See Defining the measurement bandwidth on page 182 Remote command SENSe...

Страница 404: ...ent points on page 184 Remote command SENSe SWEep POINts on page 337 20 8 7 Trace Menu Access Trace Trace Mode 401 Memory 401 Trace Memory 401 Trace Math 402 Trace Mode See Selecting the trace mode on page 116 Remote command Trace mode DISPlay n WINDow TRACe t MODE on page 267 of averages SENSe SWEep COUNt on page 270 Memory See Working with memory traces on page 117 Only one trace available in VN...

Страница 405: ...e Selecting a limit line on page 131 Using a threshold line on page 131 and Removing limit lines on page 132 Remote command Threshold line CALCulate n LIMit k UPPer THReshold on page 295 Custom line CALCulate n LIMit k UPPer SELect on page 294 Removal CALCulate n LIMit k DELete on page 291 Limit check CALCulate n LIMit k FAIL on page 291 Lower Limit See Selecting a limit line on page 131 Using a t...

Страница 406: ...LCulate n DELTamarker m X on page 273 Delta marker position relative CALCulate n DELTamarker m X RELative on page 274 Delta marker position y axis CALCulate n DELTamarker m Y on page 275 Marker Type See Selecting the marker type on page 122 Remote command With corresponding syntax MARKer or DELTamarker Marker Mode See Using markers in the Smith diagram on page 185 Only in Smith diagrams Remote com...

Страница 407: ...er m MAXimum NEXT on page 272 Set To Minimum See Positioning markers automatically on page 123 Remote command Marker CALCulate n MARKer m MINimum PEAK on page 278 Delta marker CALCulate n DELTamarker m MINimum PEAK on page 273 All Markers To Peak See Positioning markers automatically on page 123 Remote command not supported Center Marker Level Marker See Positioning markers automatically on page 1...

Страница 408: ...Search Range See Defining marker search range on page 124 Remote command Search range CALCulate n MARKer m X SLIMits slim STATe on page 280 Left limit CALCulate n MARKer m X SLIMits slim LEFT on page 279 Right limit CALCulate n MARKer m X SLIMits slim RIGHt on page 280 Function Reference Vector Network Analyzer ...

Страница 409: ...Nlink 246 SENSe CHANnel TABLe SELect UPLink 246 SENSe CHANnel TABLe SET 247 SENSe CORRection TRANsducer td SELect 257 SENSe CORRection TRANsducer td UNIT 258 SENSe CORRection TRANsducer td STATe 258 SENSe DDEMod 317 SENSe DDEMod BURSt STATe 318 SENSe DDEMod FILTer ALPHa 318 SENSe DDEMod FILTer NAME 319 SENSe DDEMod FILTer STATe 319 SENSe DDEMod FSK OFFSet 317 SENSe DDEMod SRATe 320 SENSe DDEMod TI...

Страница 410: ...LCulate n ADEMod LIMit FAIL 312 CALCulate n ADEMod LIMit SELect 313 CALCulate n DELTamarker m AOFF 271 CALCulate n DELTamarker m MAXimum NEXT 272 CALCulate n DELTamarker m MAXimum PEAK 272 CALCulate n DELTamarker m MINimum PEAK 273 CALCulate n DELTamarker m X 273 CALCulate n DELTamarker m X RELative 274 CALCulate n DELTamarker m Y 275 CALCulate n DELTamarker m STATe 273 CALCulate n DLINe 288 CALCu...

Страница 411: ...Ker FUNCtion DDEMod MINDex RESult 316 CALCulate n MARKer FUNCtion DDEMod MOERror RESult 316 CALCulate n MARKer FUNCtion DDEMod MPOWer RESult 317 CALCulate n MARKer m AOFF 275 CALCulate n MARKer m COUNt FREQuency 282 CALCulate n MARKer m COUNt STATe 282 CALCulate n MARKer m FREQuency MODE 276 CALCulate n MARKer m FUNCtion CENTer 276 CALCulate n MARKer m FUNCtion CPOWer BANDwidth 237 CALCulate n MAR...

Страница 412: ...late n MARKer m MINimum PEAK 278 CALCulate n MARKer m MODE 338 CALCulate n MARKer m X 279 CALCulate n MARKer m X SLIMits slim LEFT 279 CALCulate n MARKer m X SLIMits slim RIGHt 280 CALCulate n MARKer m X SLIMits slim STATe 280 CALCulate n MARKer m Y 281 CALCulate n MARKer m Y 339 CALCulate n MARKer m STATe 278 CALCulate n MARKer n FUNCtion TOI STATe 239 CALCulate n MATH t COPY MEMory 266 CALCulate...

Страница 413: ... Y SCALe PDIVision 309 DISPlay n WINDow TRACe t Y SCALe PDIVision 321 DISPlay n WINDow TRACe t Y SCALe RLEVel 253 DISPlay n WINDow TRACe t Y SCALe RLEVel OFFSet 254 DISPlay n WINDow TRACe t Y SCALe RPOSition 254 DISPlay n WINDow TRACe t Y SCALe RPOSition 321 DISPlay n WINDow TRACe t STATe 268 FORMat SREGister 351 FORMat DATA 269 HCOPy DEVice LANGuage 217 HCOPy IMMediate 218 INITiate CONTinuous 262...

Страница 414: ...ATus QUEStionable LIMit ENABle 353 STATus QUEStionable LIMit NTRansition 354 STATus QUEStionable LIMit PTRansition 354 STATus QUEStionable LIMit EVENt 353 STATus QUEStionable NTRansition 354 STATus QUEStionable POWer CONDition 353 STATus QUEStionable POWer ENABle 353 STATus QUEStionable POWer NTRansition 354 STATus QUEStionable POWer PTRansition 354 STATus QUEStionable POWer EVENt 353 STATus QUESt...

Страница 415: ...y 206 SYSTem PRESet MODE 206 SYSTem PRESet USER 207 SYSTem SET DISPlay 225 SYSTem SET LOCK 225 SYSTem SET UNLock 225 SYSTem SET 225 SYSTem STORe FREE 213 SYSTem STORe TOTal 213 SYSTem STORe USED 213 SYSTem TIME 214 SYSTem TZONee 214 TRACe DATA 296 TRACe DATA 301 TRACe DATA 308 TRACe DATA 318 TRACe DATA 337 TRACe n DATA 270 TRIGger SEQuence HOLDoff TIME 264 TRIGger SEQuence LEVel IQPower 322 TRIGge...

Страница 416: ...l table Receiver 139 140 Spectrum analyzer 97 CISPR detector 145 CISPR bandwidth 143 Clear status Remote 203 Colon 197 Color scheme 43 Colors spectrogram 87 Comma 197 Command sequence Remote 205 Commands Brackets 197 Colon 197 Comma 197 Command line structure 199 Double dagger 197 Overlapping 200 Question mark 197 Quotation mark 197 Sequential 200 Syntax elements 197 Vertical stroke 197 White spac...

Страница 417: ... Manual step size 94 139 Marker 119 Marker demodulation 128 Marker display mode 146 Marker function Demodulation 128 Frequency counter 126 n dB down 127 Noise measurement 126 Marker list 119 Marker position 120 123 Marker search 124 Marker tracking 124 Marker type 122 Matching pads 98 MAX 196 Max hold 138 Measurement AM modulation depth 79 Bargraph 134 Channel power 70 Frequency scan 136 Harmonic ...

Страница 418: ...r 107 RF attenuation 101 Roll off factor 164 S S11 171 S21 171 Safety instructions 7 Scan range 140 SCPI Parameters 195 Syntax 193 SCPI remote control 27 Search range 124 Self test Remote 205 Sensitivity 101 Sequential commands 200 Service manual 7 Service request enable register SRE Remote 204 Signal bandwidth measurement 127 Signal source 52 Single measurement Analog demodulation 156 Digital dem...

Страница 419: ... Uplink 97 User manual 7 V VBW 108 Vector network analysis 170 Vertical stroke 197 Video bandwidth 108 Video filter 108 VNA 170 VNA formats 175 Volume 43 Volume marker demodulation 128 W Wait Remote 205 White papers 8 White space 197 Wi Fi 39 WLAN 39 Y Y axis scale 104 Z Zero span 96 ...

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