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SSG5000A RF Signal Generator User Manua

SSG5000A User Manual 34

2.4 Analog Modulation

Amplitude Modulation (AM)

Amplitude Modulation (AM) is a technique for delivering information by linearly varying the

amplitude of an RF carrier signal.

AM source can be selected as an internal source, external source or internal source +

external source. To source dual tone level modulation, configure the source for internal

external source. The internal source is shared with the LF. When the LF is turned

on, the internal source can’t be used as a modulation source.

Select

MOD

, to enter the level modulation parameter setting state. The setting

instructions are as follows:

Function Menu

Instructions

AM State

Turn on or off the level modulation function

AM Source

Select the modulation source,

which can be Int, Ext, Int + Ext

AM Shape

Select modulation wave type

AM Rate

Frequency range: 0.01Hz~100kHz

AM Depth

Modulation depth range is from 0.01% to 100%

AM Sensitivity

Show the sensitivity of the external modulation source level to the

modulation depth

AM State

Select

MOD

AM State

, and then turn on or off the level modulation.

Содержание SSG5000A

Страница 1: ...SSG5000A RF Signal Generator User Manual SSG5000A User Manual I SSG5000A RF Signal Generator User Manual User Manual 0805A E01A...

Страница 2: ...ation in this publication replaces all previously corresponding material Any way of copying extracting or translating the contents of this manual is not allowed without the permission of SIGLENT SIGLE...

Страница 3: ...since it has isobaric electric potential as the ground Look Over All Terminals Ratings To avoid fire or electric shock please look over all ratings and sign instruction of the instrument Before connec...

Страница 4: ...Product Surfaces Clean and Dry To avoid the influence of dust and or moisture in the air please keep the surface of the device clean and dry Do Not Operate in Wet Conditions In order to avoid short c...

Страница 5: ...protection provided by the equipment may be impaired Safety Terms and Symbols Terms used in this manual DANGER Indicates an injury or hazard that may immediately happen WARNING Indicates an injury or...

Страница 6: ...ude Operating 3000m Degree of protection IP 20 Degree of pollution This product can work in the environment with pollution degree of 2 Installation overvoltage Category This product is powered by main...

Страница 7: ...ers to the local power distribution level which is applicable to equipment connected to the AC line AC power Cleaning Clean only the exterior of the instrument using a damp soft cloth Do not use chemi...

Страница 8: ...entreprise Les informations contenues dans cette publication remplacent tout le mat riel pr c demment correspondant Tout moyen de copier d extraire ou de traduire le contenu de ce manuel est interdit...

Страница 9: ...r un incendie ou un choc lectrique veuillez consulter toutes les valuations et signer les instructions de l instrument Avant de connecter l instrument veuillez lire attentivement le manuel pour obteni...

Страница 10: ...es conditions humides Afin d viter un court circuit l int rieur de l appareil ou un choc lectrique veuillez ne pas utiliser l instrument dans un environnement humide Ne pas utiliser dans une atmosph r...

Страница 11: ...NTION indique que des dommages potentiels l instrument ou d autres biens pourraient survenir Symboles utilis s sur l instrument Des symboles peuvent appara tre sur l instrument Dangereux Protecteur Av...

Страница 12: ...n l op rateur pourrait s exposer un risque de choc lectrique D finitions des cat gories d installation surtension La cat gorie d installation surtension I fait r f rence au niveau de signal qui est ap...

Страница 13: ...cy resolution Level output up to 20 dBm Level accuracy 0 7 dB typ Phase noise 120 dBc Hz 1 GHz offset 20 kHz typ Standard AM FM and PM analog modulation with internal external and Int Ext source Pulse...

Страница 14: ...ust the Supporting Legs 3 Connect to AC Power Supply 3 1 3 The Front Panel 4 Front Panel Function Keys 4 Front Panel Key Backlight 5 Digital keyboard 6 Front Panel Connectors 8 1 4 Rear Panel 9 1 5 Us...

Страница 15: ...e 77 MOD ON OFF 78 RF ON OFF 78 Chapter 3 Application Examples 79 3 1 Output RF signal 79 3 2 Correcting 10MHz Reference 80 3 3 Correcting Line Loss 81 3 4 Output a pulse train 82 Chapter 4 Programmin...

Страница 16: ...SSG5000A RF Signal Generator User Manual SSG5000A User Manual XV Chapter 6 Service and Support 99 6 1 Service Summary 99 6 2 Contact Us 100...

Страница 17: ...Generator User Manual 1 SSG5000A User Manual Chapter 1 Quick Start Subjects in this chapter Appearance size Preparing for Use The Front Panel Rear Panel User interface Touch operation Parameter settin...

Страница 18: ...SSG5000A RF Signal Generator User Manual SSG5000A User Manual 2 1 1 Appearance size Figure 1 1 Front View Figure 1 2 Top View Figure 1 3 Side View...

Страница 19: ...he supporting feet appropriately to tilt the RF signal source upwards Figure 1 4 before adjusting Figure 1 5 after adjusting Connect to AC Power Supply The RF signal source accepts 100 240V 50 60Hz or...

Страница 20: ...tput 4 RF output 5 Knob 6 Direction key 7 Digital keyboard 8 Touch screen display area 9 Power button Front Panel Function Keys Table 1 2 Function keys description Control Keys Description FREQ Set fr...

Страница 21: ...on MOD ON OFF The main switch of various modulation modes RF ON OFF RF signal output switch PRESET Press this button to revert to the default parameters The default parameters refer to the default par...

Страница 22: ...lowercase characters numbers and common symbols including decimal point blank space negative sign and mainly for editing the name of files or folders and setting parameters refer to the parameter set...

Страница 23: ...the amplitude press this key to set the unit as mV When setting the frequency press this key to set unit as kHz If the input is a time related parameter press this key to set the unit as ms 7 When set...

Страница 24: ...panel connectors 1 LF low frequency output Output the low frequency signal This is a BNC connection The output can also be configured to source the modulation waveform for FM and PM modulation types...

Страница 25: ...ace Used to link the RF signal source to the computer or computer network the SSG5000A is VXI 11 compliant supports remote commands based on Socket and Telnet and uses WEB for remote control It can qu...

Страница 26: ...xternal reference source At this point the user interface status bar shows Ext Ref When an external reference is lost exceeded or disconnected the instrument automatically switches to the internal ref...

Страница 27: ...ctor of the front panel outputs the RF signal at the specified frequency and amplitude after a certain response and processing time in the internal circuit of the instrument In this process the SIGNAL...

Страница 28: ...LOCAL mode press Esc Close to quit EXT REF EXT REF shows that the SSG is using an external 10 MHz reference LF Low frequency signal generator state MOD The modulation function enabled RF The RF output...

Страница 29: ...ate Amplitude modulation frequency modulation phase modulation or pulse can be set RF RF output state Frequency and level can be set SWEEP RF Sweep state and related parameters can be set UTILITY Syst...

Страница 30: ...Use the numeric key to input the value 100 3 Then press to select unit MHz 2 Using the touch screen 1 Click the Freq input box on the screen to display the keypad 2 Enter 100 on the keypad then selec...

Страница 31: ...ion The built in help system of RF signal source provides help information for each function and menu option on the front panel Press UTILITY button and select Help The center of the screen will pop u...

Страница 32: ...Chapter 2 Front Panel Operation This chapter describes in detail the function keys at the front panel and the associated functions Subjects in this chapter Frequency Setting Level Setting Sweep Settin...

Страница 33: ...n between the RF frequency the RF output frequency and the frequency offset is as follows FREQ in header RF output frequency frequency in dialog Freq offset offset in dialog RF output Frequency Settin...

Страница 34: ...e RF generator front panel 1 Keypad operation Press FREQ Freq Offset to make the focus fall on this parameter item Use the numeric keypad to input the desired value and press the unit button to select...

Страница 35: ...frequency and synchronous them 1 Keypad operation Press FREQ Phase Offset to make the focus fall on this parameter item Use the numeric keypad to input the desired value and press the unit button to...

Страница 36: ...owing section If you are working with a downstream instrument e g an attenuator or an amplifier you can enter the level offset value in the setting dialog labeled Level Offset The generator includes t...

Страница 37: ...s ENTER knob or ESC to exit the editing mode 2 Touch screen operation Click on RF LEVEL Level to enter the interface of RF output level setting Click the level parameter to pop up the keypad interface...

Страница 38: ...up the keypad interface and then click the number symbol in the keypad to change the value Click the check mark to confirm the modified value Note The difference value between the display level and th...

Страница 39: ...the generator holds the value Then the generator switches ALC off again and back to the previous operating mode Flatness The Flatness function adjusts the amplitude at specific frequencies by mathemat...

Страница 40: ...the flatness status Note Flatness correct is enabled when the indicator shows the blue colored I and the status bar will display blue UF When disabled the Flatness indicator will display a grey 0 2 Fl...

Страница 41: ...ck Fill Flatness with Sensor The amplitude correction values in the flatness list will be generated Manual Step Choose Manual Step method several hidden options will be enabled Edit these options to g...

Страница 42: ...ser Manual SSG5000A User Manual 26 state will be turned on or turned off automatically During filling the flatness list the pop up message will be shown as below You should not remove the power sensor...

Страница 43: ...me and the current sweep progress can be observed on the frequency sweep progress bar Level Enable level sweep The frequency parameter bar refreshes the current level value in real time and the curren...

Страница 44: ...and stop parameter 7 Sweep shape Click the drop down box Sawtooth and Triangle can be selected Sawtooth Sweep period is always from the start frequency or start level to the stop frequency or stop lev...

Страница 45: ...hown in the above figure the table edit page consists of the operating buttons at the left and right of the page and the table on the middle of the page 1 Add Click to inset a new line under the curre...

Страница 46: ...Indicates the dwell time of the sweep point Direction Sweep direction state is Up by default The SSG5000A provides two types Up or Down Click the drop down box to enable the corresponding sweep direc...

Страница 47: ...or click Click to trigger button on the touch screen If the sweep mode is Single first click the Execute single sweep button then a one time sweep will be started after you press the Trigger button o...

Страница 48: ...f the sweep mode is Single you will need to click Execute single sweep button first and then press the Trigger button once for every point in the sweep The sweep will stop when finish one sweep cycle...

Страница 49: ...ly when the trigger mode or point trigger mode is Ext and is hidden in other cases When performing a sweep operation the order of priority that satisfies the required conditions from high to low is Si...

Страница 50: ...d with the LF When the LF is turned on the internal source can t be used as a modulation source Select MOD AM to enter the level modulation parameter setting state The setting instructions are as foll...

Страница 51: ...reviously activated 2 Ext Use an external modulation signal The external signal is input via the EXT MOD INPUT connector on the rear panel of the instrument The modulated signal can be an arbitrary wa...

Страница 52: ...nsitivity is 50 V the actual modulation depth will be 100 when the external modulation signal is 2Vpp offset is 0V and the actual modulation depth will be 50 when the external modulation signal is 1Vp...

Страница 53: ...fset caused by it will be half of the total offset Note The modulation function must be activated to modulate the output signal You can turn it on or off by pressing the MOD ON OFF button or you can o...

Страница 54: ...set independently When the FM Source is Int1 Int2 two signal source are used for double tone modulation When the FM Source is Dual the waveform generated by two signal source is used to form a new wav...

Страница 55: ...owing equation 0 01Hz N 1MHz For the definition of N refer to the data sheet When the modulation source is set to Int1 or Int2 or Dual the set value is actually the frequency offset of the RF output W...

Страница 56: ...set FM Phase Setting the initial phase of the signal which generated by Internal source1 or Internal source2 The initial phase is in the range 360 360 Note If the FM source is Int1 Int2 or Dual FM Pha...

Страница 57: ...on and switch to the PM modulation page The MOD interface displays the AM page by default You can switch to the PM modulation page by clicking or sliding left PM State Select MOD PM PM State to turn P...

Страница 58: ...r Int Ext you can select PM waveform as Sine or Square PM Rate Select MOD PM PM Rate then you can set the PM rate 1 The sine wave modulation frequency range is 0 01Hz 100kHz 2 The square wave modulati...

Страница 59: ...eviation unit offset which quantized by the amplitude of external signal When the external signal is full scale actual offset will be max Specially when the PM source is Int Ext the offsets caused by...

Страница 60: ...internal pulse generator from the PULSE IN OUT connector on the rear panel Off Turn off the pulse output function Note When the modulation source is Ext the pulse output function will be turned off au...

Страница 61: ...w level the carrier signal is output And when the pulse signal is at high level the carrier signal is blanked Pulse Mode When the modulation source is Int the SSG5000A provides three pulse modes Singl...

Страница 62: ...iod of the single pulse or double pulse modulation signal can be set by touching the screen keyboard or pressing the front panel keypad Note This setting item will be hidden when the modulation source...

Страница 63: ...This parameter can be set by touching screen keyboard or pressing the front panel keypad Note This setting item will be hidden when the modulation source is Ext or the pulse mode is Single or Train T...

Страница 64: ...source receives the trigger signal from the TRIG IN OUT connector on the rear panel Each time a TTL pulse signal of the specified polarity is received the source initiates a pulse modulation At this...

Страница 65: ...is Ext or the pulse trigger is not Ext Trig Trigger Polarity The default is Normal click the drop down box to switch the trigger polarity type Normal Trigger a pulse modulation during the effective ti...

Страница 66: ...located 2 Delete Click the button to delete the line where the current cursor is located 3 Clear Click the button to clear and reset the current list 4 Diagram Click the button to enter the pulse sequ...

Страница 67: ...orresponding to this line 2 On Time Indicates the duration of the pulse signal being high 3 Off Time Indicates the duration of the pulse signal being low 4 Count Indicates the number of repetitions of...

Страница 68: ...t the center position of the current waveform The Zoom Position parameter sets the center position of the current graph and the operations of the Zoom In and Zoom Out buttons are based on this positio...

Страница 69: ...wn above in Advanced Mode By setting the On Time and Off Time parameters you can set a faster scan frequency of the pulse train that is a shorter scan period By setting the Freq and Level parameters e...

Страница 70: ...and amplitude of the low frequency signal can be set Press LF to enter the LF parameter settings Setting description is as follows LF State Select LF LF Source LF State to turn LF on or off LF Freque...

Страница 71: ...Triangle and DC The default LF output signal is the Sine waveform LF Phase Select LF LF Source LF Phase you can set the LF phase The setting range is 360 360 and supports degrees or radian units LF Sw...

Страница 72: ...ction to set the sweep direction Sweep Time Select LF LF Sweep Sweep Time to define the duration of a full LF sweep Trigger Mode Select LF LF Sweep Trig Mode to set the LF sweep mode If you change the...

Страница 73: ...received from the TRIG IN OUT connector on the back panel occurs Sweep Shape Select LF LF Sweep Sweep Shape to select the waveform shape of the sweep signal 1 Sawtooth The sweep runs from the start to...

Страница 74: ...t the state of screen saver When screen saver is switched on the on screen display will turn off when there is no touch or key operation within the specified time Click the touch screen or press any k...

Страница 75: ...ails please refer to Table 2 3 User The user specified configuration will be loaded when PRESET is pressed After User is selected click button to load the configuration file For detailed operation pro...

Страница 76: ...eep only one default scan point Mode Pulse Train Keep only one default pulse 6 Reset Clear Set Reset Clear will restore the instrument configuration to factory settings as well as clean up files store...

Страница 77: ...tate 9 10M Adjustment Modifying the Reference Oscillator Code will change the reference frequency You can externally connect a frequency counter from the 10MHz OUT connector on the rear panel and adju...

Страница 78: ...ol interface information including 1 LAN Settings 1 DHCP State Set the state of DHCP Press UTILITY Interface DHCP State then press ENTER or knob to change the state When the DHCP state is on the netwo...

Страница 79: ...web browser 2 Web password settings Set the web login password Press UTILITY Interface Web password settings to enter the web password setting interface Firstly input the current password and then se...

Страница 80: ...connected to the USB Host port located on the rear panel Press UTILITY Interface GPIB Address and then press number keys to input value finally press ENTER to make the setup effective Self Test 1 LCD...

Страница 81: ...nd FPGA Click any key to exit 5 Touch Screen Test Press UTILITY Self Test Touch Test to enter the touch screen test interface Click the marks on the interface to test the touch screen and press 8 to e...

Страница 82: ...ill be displayed Note The SSG comes with trial time for available options The remaining number of trial use is displayed for each option at top of the option interface When the remaining time of a cer...

Страница 83: ...y left and right direction keys 1 View Type Click View Type to change the type of files to show including All State and Update 1 Data file lsw file Sweep list data file uflt file Flatness correction f...

Страница 84: ...the selected file or folder 5 Copy Click Copy to copy the selected file or folder 6 Paste Click Paste to paste the copied file or folder to specified location 7 Recall Click Recall to load the select...

Страница 85: ...s currently supported by the SSG5000A are shown in the following table Manufacturer Model R S Rohde and Schwarz NRP6A USB Power Sensor Keysight U2000A Series USB Power Sensor Power meter setting The p...

Страница 86: ...a downstream control circuit a CLPC Closed Loop Power Control you can detect frequency response characteristics of the components such as losses due to cables modules or components and compensate thes...

Страница 87: ...perform zeroing button and the instrument performs the zero calibration operation of the power meter according to the zero calibration type you selected This feature can be used to reduce the effects...

Страница 88: ...configure the average number of times based on the current parameters Fixed noise parameter settings will be automatically hidden Manual Manually set the average times in Averaging Count Fixed Noise T...

Страница 89: ...level to the DUT in real time In practice an RF splitter is needed to split the RF signal One of them is connected to the DUT and the other is connected to the power meter The signal source is for ac...

Страница 90: ...t the target value at the sensor input and thus the power required at the DUT The value can be set by the touch screen keyboard or the front panel keypad Limit Level Set an upper limit for the RF outp...

Страница 91: ...defined settings Table 2 3 Default setting Parameter Default RF RF State Off Frequency Frequency 20 GHz Freq Offset 0 Hz Phase Offset 0 deg Level Level 125 dBm Level Offset 0 dB ALC State Auto Flatne...

Страница 92: ...viation 100 kHz FM Rate 10 kHz PM PM State Off PM Source Int PM Shape Sine PM Rate 10 kHz PM Deviation 1 rad Pulse Pulse State Off Pulse Source Int Pulse Mode Single Pulse Period 10 ms Pulse Width 2 m...

Страница 93: ...ome page Trigger When the trigger mode of the sweep is Key press this key once to trigger a sweep When the trigger mode of the pulse is Key press this key once to start a pulse modulation When the tri...

Страница 94: ...to disable modulation When disabled the backlight is off all modulation is off and the MOD icon in the screen status bar changes from blue to gray RF ON OFF Enabled or Disable the RF output When enabl...

Страница 95: ...Frequency Press FREQ and enter the 3GHz with the numeric keypad or click the frequency on the touch screen to pop up the keypad and input 3GHz 3 Set the Level Press LEVEL and enter the 0dBm with the n...

Страница 96: ...set 2 Set the code of reference OCXO a Press UTILITY or the touch screen to set UTILITY Settings 10M Adjustment enter the Ref Osc setting b Press 10M Adjustment the switch will toggle to the open stat...

Страница 97: ...5 Set the Frequency Level d Press FREQ and enter the 1GHz with the numeric keypad or click the frequency on the touch screen to pop up the keypad to input 1GHz e Press LEVEL and enter the 0dBm with th...

Страница 98: ...tings to perform the reset operation 2 Install the pulse train option a Activate the pulse train generator option 3 Edit pulse list a Press MOD or select ANALOG MOD from the Home page You can swipe le...

Страница 99: ...le the RF modulation output a Press MOD ON OFF and then press RF ON OFF The backlights of MOD ON OFF and RF ON OFF will be illuminated RF and MOD labels in the status bar will change from gray to blue...

Страница 100: ...how to build communication between the signal generator and a controller computer with these interfaces 4 1 Remote Operation The SSG provides both the USB and LAN connection which allows you to set u...

Страница 101: ...socket or telnet in your PC s Operating System 2 Connect the SSG to PC or the local area network with a LAN cable 3 Switch on the SSG Figure 4 2 LAN 4 Press button on the front panel System Interface...

Страница 102: ...port Refer to the following steps to finish the connection via USB 1 Install NI VISA on your PC for GPIB driver 2 Connect the SSG USB Host port to a PC s GPIB card port with SIGLENT USB GPIB adaptor 3...

Страница 103: ...software tool named NI MAX that provides a user interface to control the device You can get NI VISA full version from http www ni com download After download you can follow the steps below to install...

Страница 104: ...path default path is C Program Files National Instruments you can change it Click Next dialog shown as above 5 Click Next twice in the License Agreement dialog select the I accept the above 2 License...

Страница 105: ...generator over the LAN interface using the Transmission Control Protocol Internet Protocol TCP IP A socket is a fundamental technology used for computer networking and allows applications to communica...

Страница 106: ...ng SCPI commands via NI MAX software NI_MAX is National Instruments Measurement and Automation Explorer It is an executable program that enables easy communication to troubleshoot issues with instrume...

Страница 107: ...d other identification information Using LAN Select Add Network Device and select VISA TCP IP Resource as shown Run NI MAX software 1 Click Device and interface at the upper left corner of the softwar...

Страница 108: ...Signal Generator User Manual SSG5000A User Manual 92 4 After a brief scan the connection should be shown under Network Devices 5 Click Open VISA Test Panel option button then the following interface...

Страница 109: ...k Query option button If everything is OK you will see the Read operation information returned as shown below Web Control With the new embedded web server users can control the SSG through LAN from a...

Страница 110: ...ll not provide free maintenance or replacement 2 Inspect the instrument If the instrument is found to be damaged defective or fails in electrical or mechanical tests please contact SIGLENT 3 Check the...

Страница 111: ...s all the keys at the front panel to check if all of them are normal after power on 2 Press Utility Self Test Key Test to check if all the keys are working properly 3 If a key is not working the numer...

Страница 112: ...nation The user interface frequency zone amplitude zone displays a scan progress bar indicating that a scan operation is in progress If there is stagnation check the points Open at least one scan type...

Страница 113: ...lash drive to check 4 If you are unable to use the USB flash drive normally please contact 6 Inaccurate measurement results or insufficient accuracy Users can obtain detailed descriptions of technical...

Страница 114: ...ser Manual 98 7 Pop up Message The instrument may display prompt messages error messages or state messages according to the current working status These messages are displayed to help you to use the i...

Страница 115: ...s defective within the respective period SIGLENT will provide repair or replacement as described in the complete warranty statement To arrange for service or obtain a copy of the complete warranty sta...

Страница 116: ...LENT has extended its product line to include digital oscilloscopes isolated handheld oscilloscopes function arbitrary waveform generators RF MW signal generators spectrum analyzers vector network ana...

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