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Trying Out the Instrument

R&S

®

RTE

58

Getting Started 1326.1026.02 ─ 08

Both the histogram and any measurements based on that histogram are deac-
tivated.

5.7

 

Performing a Basic FFT Analysis

During FFT analysis, a signal in the time domain is converted to a spectrum of
frequencies. A basic spectrum waveform can be displayed quickly.

1. Restore the default signal channel settings by pressing the [AUTOSET] key.

2. Tap the "FFT" icon on the toolbar. Then tap the diagram.

A math waveform is configured that uses the "Mag(FFT(x))" operator with Ch1
as source. The spectrum waveform is displayed in a new diagram.

Performing a Basic FFT Analysis

www.allice.de 

Allice Messtechnik GmbH 

Содержание 1317.2500K02

Страница 1: ...R S RTE Oscilloscope Getting Started Getting Started Version 08 1326102602 J J2 www allice de Allice Messtechnik GmbH...

Страница 2: ...channels 1326 2000K64 and 1317 2500K04 R S RTE1152 1 5 GHz 2 channels 1326 2000K72 R S RTE1154 1 5 GHz 4 channels 1326 2000K74 R S RTE1202 2 GHz 2 channels 1326 2000K82 R S RTE1204 2 GHz 4 channels 1...

Страница 3: ...13 3 4 Connecting External Devices 15 4 Instrument Tour 19 4 1 Front Panel 19 4 2 Rear Panel 22 4 3 Keys and Controls 25 5 Trying Out the Instrument 37 5 1 Displaying a Basic Signal 37 5 2 Acquiring D...

Страница 4: ...Waveforms 80 6 5 Rohde Schwarz SmartGrid 83 6 6 Using the Signal bar 84 6 7 Toolbar 86 6 8 Displaying Results 94 6 9 Using Dialog Boxes 96 6 10 Entering Data 98 6 11 Messages 100 6 12 Getting Informat...

Страница 5: ...nments Use the R S RTE only for its designated purpose Observe the operating conditions and performance limits stated in the data sheet Where do I find safety information Safety information is part of...

Страница 6: ...blind time Access and analyze prior waveforms in the memory using the history function Get fastest results even with maximum data with hardware accelerated pro cessing mathematical operations mask tes...

Страница 7: ...ation for the firmware basic functionality and applications User manual Describes all instrument functions in detail It also provides an introduction to remote control a complete description of the re...

Страница 8: ...an overview of the instrument and deals with the specific characteristics See www rohde schwarz com brochure datasheet rte 2 2 3 Release Notes Open Source Acknowledgment The release notes list new fe...

Страница 9: ...you can click are displayed in blue font References References to other parts of the documentation are enclosed by quotation marks 2 3 2 Conventions for Procedure Descriptions When operating the instr...

Страница 10: ...ign of condensation The instrument is positioned as described in the following sections The ambient temperature does not exceed the range specified in the data sheet Signal levels at the input connect...

Страница 11: ...instrument needs to be transpor ted or shipped later you can use the material to protect the control ele ments and connectors 3 2 Positioning the Instrument The instrument is designed for use under la...

Страница 12: ...eet are folded out do not work under the instrument or place anything underneath The feet can break if they are overloaded The overall load on the fol ded out feet must not exceed 200 N Fmax Risk of i...

Страница 13: ...riod can disturb the operation and even cause damage 3 3 Starting the Instrument Risk of injury Connect the oscilloscope to an outlet that has a ground contact If grounding is not ensured by the mains...

Страница 14: ...r off 1 If the instrument is running and the POWER key is green press the POWER key on the front panel to shut down the instrument 2 Switch the main power switch at the rear of the instrument to posit...

Страница 15: ...Exit function in the File menu shuts down only the firmware application To shut down the instrument completely also shut down the operating system in the Start menu or use the POWER key 3 3 3 EMI Sup...

Страница 16: ...vice driver If the operating system does not find a suitable driver it prompts you to specify a directory that contains the driver software If the driver software is on a storage media connect the app...

Страница 17: ...n printing a file the instrument checks whether a printer is connected and turned on and whether the appropriate printer driver is installed If necessary printer driver installation is initiated by th...

Страница 18: ...Display Monitors 5 To show the instrument s display content only on the external monitor select Projector only To show the instrument s display content on both the oscilloscope and the external monito...

Страница 19: ...its control elements 4 1 Front Panel The front panel of the R S RTE is shown in Figure 4 1 The function keys are grouped in functional blocks to the left and the right of the touchscreen Below the scr...

Страница 20: ...ever use cleaning agents to clean the outside of the instrument Use a soft dry lint free dust cloth instead 4 1 1 Input Connectors The R S RTE has two or four channel inputs to connect the input signa...

Страница 21: ...asurements in circuits with transient overvoltages of category II III or IV circuits make sure that no such overvoltages reach the R S RTE input Therefore use only probes that comply with DIN EN 61010...

Страница 22: ...B flash drive Note Electromagnetic interference EMI can affect the measurement results To avoid any impact do not use USB connecting cables exceeding 1 m PROBE COMPENSATION Probe compensation terminal...

Страница 23: ...rator R S RTE B6 or GPIB connector R S RTE B10 9 Kensington lock slot to secure the instrument against theft 10 Lugs to attach the accessory bag AC power supply connector and main power switch Connect...

Страница 24: ...he internal trig ger signal of the oscilloscope to trigger other instruments for synchronized mea surements When a trigger occurs the R S RTE creates a pulse of 5 V with a source impe dance of 50 and...

Страница 25: ...quency for a signal with the minimum input voltage swing of 500 mV Vpp is 400 MHz For detailed specifications refer to the data sheet Waveform generator option R S RTE B6 The waveform generator can ge...

Страница 26: ...e them to a file The PRESET key can be configured to set either factory defaults or a user defined preset configuration FILE Opens and closes the File dialog box where you can Save instrument settings...

Страница 27: ...is illuminated Press again to unlock the touchscreen INTENSITY Adjusts the intensity of the waveforms on the screen or the background transpar ency of dialog boxes or the transparency of result boxes...

Страница 28: ...The controlled parameter and its value are shown in the input box in the upper left corner of the screen For resolution turn clockwise to increase the resolution the time between two acquisition poin...

Страница 29: ...point SCALE The rotary knob adjusts the time scale for all signals The time scale is also known as timebase Turn clockwise to stretch the waveforms Doing so the scale value time div decreases Press th...

Страница 30: ...brown default color the brightness of the color depends on the selected waveform POSITION OFFSET upper knob The upper rotary knob changes the vertical position or the offset of the selected waveform T...

Страница 31: ...nob sets the trigger level for all trigger types Turn clockwise to move up the trigger level If the selected trigger type requires two trigger levels upper and lower level press the knob to toggle bet...

Страница 32: ...ccess to measure ment and analyzing functions If you press CURSOR ZOOM or MEAS the action starts on first keypress and a second keypress opens the corresponding dialog box If you press another functio...

Страница 33: ...where you can configure several zoom areas for detailed signal observation PROTOCOL Opens the Protocol dialog box which contains the configuration of serial buses and the settings for decoding the sig...

Страница 34: ...key is illuminated as long as a history acquisition or replay is displayed 4 3 7 NAVIGATION Controls The rotary knob and the navigation keys provide an alternative way to navigate in dialog boxes and...

Страница 35: ...left Field right In dialog boxes and tables the keys move the focus In diagrams they switch the focus between zoom areas cursor lines and gates Checkmark The checkmark key has different functions dep...

Страница 36: ...an open selection list the keys scroll the list Left arrow Right arrow The left and right arrow keys have the following effects In edit fields move the cursor In tables scroll horizontally through the...

Страница 37: ...ing Displaying a Basic Signal 37 Acquiring Data 39 Changing the Waveform Scaling and Position 40 Zooming into the Display 46 Displaying the Waveform History 48 Showing Basic Measurement Results 50 Per...

Страница 38: ...pensate the passive probe as described in Chapter 7 4 Adjusting Passive Probes on page 106 5 In the TRIGGER area of the front panel press the SOURCE key Press the key again to switch the trigger sourc...

Страница 39: ...s If you need to change only one setting during analysis and you need to change it often you can reduce the dialog box to a small box that only contains the required setting Thus you can change the se...

Страница 40: ...on in the mini dialog box The complete Acquisition dialog box is restored 8 Close the dialog box by tapping 5 3 Changing the Waveform Scaling and Position As you can see on the y axis of the display t...

Страница 41: ...w trigger level and try out the scaling functions 1 Press the Ch1 key on the front panel in the VERTICAL area to display the Vertical dialog box 2 Change the Coupling to AC Close the dialog box The DC...

Страница 42: ...ain b Enter 0 V in the Offset field The waveform is now displayed in the center of the display with the x axis crossing at 0 V The waveform can be unstable if the trigger level is above 4 Tap the Show...

Страница 43: ...43 Getting Started 1326 1026 02 08 5 Tap the Find level icon on the toolbar The instrument adjusts the trigger level and a stable waveform is displayed Changing the Waveform Scaling and Position www...

Страница 44: ...horizontal Scale rotary knob The current scale factor per division is displayed in the upper left hand corner of the display while you turn the knob You can switch between a small and large step size...

Страница 45: ...erent action Tip Instead of using the UNDO and REDO keys you can tap the corre sponding icons on the toolbar If you use a Rohde Schwarz active single ended probe you can measure the DC component of th...

Страница 46: ...channel settings by pressing the PRESET and AUTOSET keys 2 On the toolbar tap the Zoom icon 3 Tap the position in the diagram that you want to define as one corner of the zoom area Then drag your fing...

Страница 47: ...room on the display for other results tap the Delete icon and then the zoom window 5 4 2 Using the Fingertip Zoom 1 Touch the Zoom icon on the toolbar and drag it down until the Zoom tool bar menu ope...

Страница 48: ...dard zoom diagram 5 5 Displaying the Waveform History During a continuous acquisition the instrument stores the acquired data in the memory and shows the current acquisition on the display The history...

Страница 49: ...box appears and the history mode is on 6 Tap Play The 10 stored waveforms are displayed one after the other but very fast 7 In the Current acq field enter 4 to display the sixth waveform counted from...

Страница 50: ...nds with the source waveform color 5 6 1 Performing a Cursor Measurement 1 Restore the default signal channel settings Press the PRESET and AUTOSET keys 2 Tap the Cursor icon on the toolbar 3 Tap the...

Страница 51: ...el 5 6 2 Performing Automatic Amplitude Measurements You can start up to 8 automatic measurements to run in parallel The Automatic measurment icon starts the measurements one after the other In the fo...

Страница 52: ...level is started 4 Tap the Automatic measurement icon again Then tap the waveform By default the amplitude measurement is started 5 Double tap the results to open the Measurements dialog box In the S...

Страница 53: ...f up to eight different measurements on one source can be performed at once simply by tapping the Quick measurement toolbar icon The results are displayed in a result box You can configure the measure...

Страница 54: ...Tap the icon to open the Measurements dialog box 5 Select the Quick Meas Setup 6 Scroll down in the table and disable the Mean and RMS measurements 7 Tap Activate and select Period Now the result box...

Страница 55: ...urement and can be repeated until you save another configuration 10 Close the dialog box 11 To save space in the display minimize the result box The most important results are displayed and updated in...

Страница 56: ...i cally 1 Tap the Histogram icon on the toolbar 2 Tap the diagram in which you want to generate the histogram You can also draw a rectangle on the screen to define the area on which the histogram is b...

Страница 57: ...ayed 5 To get more measurement results for the histogram double tap the results Alternatively you can press the MEAS key on the front panel 6 For Meas 2 select Category Hist and the required measureme...

Страница 58: ...ain is converted to a spectrum of frequencies A basic spectrum waveform can be displayed quickly 1 Restore the default signal channel settings by pressing the AUTOSET key 2 Tap the FFT icon on the too...

Страница 59: ...the toolbar 4 Tap the spectrum waveform The channel power is displayed below the FFT diagram 5 Double tap the spectrum waveform The FFT Setup dialog box opens 6 Set the Center frequency to 10 kHz The...

Страница 60: ...thematical Calculations In addition to the measured waveforms you can display calculated data to com pare the current measurement result with For example you can rescale the waveform and display it in...

Страница 61: ...note that the instrument adjusts the Vertical scale and Vertical offset of the math waveform automatically 8 Tap Enable to display the first math waveform The original and the rescaled waveforms are d...

Страница 62: ...SEARCH key on the front panel ANALYSIS area 2 Select C1 as Source 3 Select the search criteria Enable Window 4 In the Window tab below define the search conditions a In the Upper level field enter the...

Страница 63: ...e the time values for which a result was found 8 In the results table tap the row of the search result that you want to display in the search zoom diagram 5 10 Performing a Mask Test In the following...

Страница 64: ...necessary correct the mask segment points you defined graphically in the Mask Definition tab In the Region column of the mask segment Inner is selected That means a mask hit is detected if the signal...

Страница 65: ...he number of sample hits exceeds the limit of Violation tolerance hits 10 Select the Event Action Reset tab 11 For the Stop acquisition action select On violation If the violation tolerance is exceede...

Страница 66: ...following examples you print the current display as a black and white graphic with inverted colors i e a black waveform is printed on a white background Then you save some screenshots using the PRINT...

Страница 67: ...utton and select the printer 5 Tap Print The result is a monochrome image 6 Close the dialog box To configure the PRINT key 1 Open the File menu and tap Frontpanel Setup 2 Select the Hardkeys tab 3 Se...

Страница 68: ...iles are saved to the following directory C Users Public Public Documents Rohde Schwarz RTx ScreenShots The default file name is Screenshot_ date _ index _ time png 4 To access the saved files open th...

Страница 69: ...nt panel in the SETUP area on the left 2 Select Waveform 3 Check the Source 4 Set Scope to Full Waveform Tip If a cursor zoom or measurement gate is defined you can use these set tings to export only...

Страница 70: ...port all waveforms of a running acquisition d Enter Acq count 10 the number of subsequent waveforms that the instrument acquires and saves 4 Tap Start Export to save the waveforms to file You can chan...

Страница 71: ...device settings 1 Press the FILE key on the front panel 2 Select Savesets 3 Tap Save As Enter the path and filename C Users Public Public Documents Rohde Schwarz RTx SaveSets Settings_Meas1 dfl 4 Tap...

Страница 72: ...Windows operating systems a remote desktop connection is possible using RDP applications For details refer to the user manual chapter Remote Desktop Connection Remote monitoring and control of the in...

Страница 73: ...y knobs The front panel provides nearly all functions and controls to operate the instru ment in the classic ways without touchscreen As an exception the signal bar cannot be used with front panel con...

Страница 74: ...ger level 5 Trigger position 6 Reference point distance from trigger position to reference point horizontal position 7 Zoom area 8 Zoom diagram 9 Histogram area 10 Histogram 11 Messages Diagram 1 A di...

Страница 75: ...horizontal divisions The division lines are labeled with the correspondent values The grid labels have the color of the waveform to which they belong If several waveforms are shown in one diagram the...

Страница 76: ...l scale 2 Vertical position 3 Offset 4 Coupling You can also adjust the behavior of the signal bar in various ways see Chap ter 6 6 Using the Signal bar on page 84 Trigger position and trigger level 4...

Страница 77: ...ed in detail in the User Manual chapter Zoom Histogram and histogram area 9 10 A histogram shows the frequency of occurrence of voltage or time values in a bar chart directly in the diagram The rectan...

Страница 78: ...quick and easy access to the most important functionality For a detailed description refer to Chapter 6 7 Toolbar on page 86 Menu bar 3 The menus provide access to the complete functionality of R S RT...

Страница 79: ...s if you adjust a value using one of the rotary knobs or if you drag an element on the screen for example a cursor line The input box shows the current value of the modified parameter You can enter th...

Страница 80: ...alysis Math waveforms Four mathematic waveforms can be created with mathematic operations per formed on channel reference and other math waveforms Zoom waveforms Show the details of waveforms XY wavef...

Страница 81: ...ge the diagram name double tap the tab name The Rohde Schwarz SmartGrid function helps to arrange the diagrams Waveform states Depending on its place on the screen and the effect of settings a wavefor...

Страница 82: ...form press the correspond ing key Tap the signal icon Note Zoom waveforms in zoom diagrams cannot be selected To minimize a waveform Choose on of the following ways Tap the Minimize icon in the upper...

Страница 83: ...ge the diagrams on the screen with drag drop The diagram layout depends on the position where you drop the signal icon in relation to an existing diagram Figure 6 5 SmartGrid positions 1 In the existi...

Страница 84: ...in a new diagram and it is selected for further actions 3 To change the size of the new diagram drag its edge to the required position 6 6 Using the Signal bar The signal bar can hold a large number o...

Страница 85: ...and drag it to the opposite side of the screen To configure auto hide The signal bar can be hidden if the displayed information has not changed for a defined time and is displayed again automatically...

Страница 86: ...new color settings To see the effect of a setting change in the Preview area enter the value and press the ENTER key 6 Tap OK The signal bar is displayed in the new colors 6 7 Toolbar The toolbar prov...

Страница 87: ...ag a rectangle on the diagram To select a function on a toolbar menu Icons with a little triangle in the lower right corner show the last selected function A short tap on the icon activates the displa...

Страница 88: ...t to add to the toolbar To display all available toolbar icons tap Show All To hide all toolbar icons tap Hide All 3 To hide the current date and time on the toolbar disable Show date and time A detai...

Страница 89: ...S RTE K18 You can configure the content of the toolbar and hide the date time display see Chapter 6 7 2 Configuring the Toolbar on page 87 The following list describes at first the default toolbar fu...

Страница 90: ...m type A short tap on the icon activates the selected zoom If you touch the icon and drag your finger down a menu opens where you can select another zoom type Standard zoom Zoom Displays a magnified s...

Страница 91: ...he selected waveform Cursor The cursor icon shows the last selected cursor type A short tap on the icon activates the selected cursor If you touch the icon and drag your finger down a menu opens where...

Страница 92: ...ne a measurement gate draw a rectangle on the screen To modify the measurement tap the icon in the Measurement result box Quick meas Performs a set of measurements on the selected waveform You can con...

Страница 93: ...and statistics all waveforms and the history Autoset and Preset Performs an autoset or a preset to a default state The icons have the same functionality as the corresponding keys on the front panel T...

Страница 94: ...file using the settings defined in FILE Waveforms Results Waveforms The filename is created according to the autonaming pattern Tap the icon and then tap the waveform to be exported If you tap the dis...

Страница 95: ...ou drop the box on one of the buttons the results are shown in a sepa rate tab besides above or below the diagram If you drop the box on the signal bar a result icon is created If you drop the box som...

Страница 96: ...lts select Meas menu Gate Display Default position To adjust the font size in result boxes 1 Press the SETUP key 2 Select the Screen tab 3 Set the Result dialog font size 6 9 Using Dialog Boxes All fu...

Страница 97: ...label to open the Horizontal or Trigger dia log box respectively To minimize a dialog box If you want to change only one setting during analysis and you need to change it often you can display a small...

Страница 98: ...s the key to select the marked option 6 10 Entering Data Most important parameters have their own rotary knobs on the front panel When you turn a knob the input box appears the upper left corner of th...

Страница 99: ...and large steps tap the Steps icon To get the value that was used before the keypad was displayed tap Cur To enter a user defined value tap the numbers and complete the entry by tapping the unit butto...

Страница 100: ...n a dialog box with navigation controls 1 To navigate to the entry field press the Field and Field keys 2 To change the value with a small step size turn the rotary knob Alternatively press the and ke...

Страница 101: ...general usage of the R S RTE for example how to use the SmartGrid They are available on the internet product page in the R S RTE1000 Media Center Tooltips give a short description of the parameter Th...

Страница 102: ...ow contains several tabs View shows the selected help topic Contents contains a table of help contents Index contains index entries to search for help topics Search provides text search The Help toolb...

Страница 103: ...f you enter several strings with blanks between topics containing all words are found same as AND operator For advanced search consider the following To find a defined string of several words enclose...

Страница 104: ...Recommendation on performing the self alignment When putting the instrument into operation for the first time After a firmware update Once a week When major temperature changes occur 5 Warm up and pre...

Страница 105: ...se If the position of the instrument has been changed and you cannot look straight on the screen If another person operates the instrument If you notice that touching a specific point on the screen do...

Страница 106: ...first time Compensation matches the probe cable capacitance to the oscilloscope input capacitance to assure good amplitude accuracy from DC to upper bandwidth limit frequencies A poorly compensated pr...

Страница 107: ...keep your instrument 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...

Страница 108: ...22 USB 22 Coupled zoom quick access 90 CURSOR key 32 Cursors Minimizing results 50 Quick access 91 Trying out 50 D Data entry 98 Data sheet 8 Decimation 39 Delete 92 Diagrams 74 Dialog boxes 77 Backg...

Страница 109: ...or 24 Language Changing 105 LEVELS knob 31 Lock touchscreen 27 LOGIC key 34 Logic probe connector 25 M Markers Example 46 Mask test Quick access 91 Trying out 63 MASKS key 33 MATH key 30 Math waveform...

Страница 110: ...ol 72 Find command using help 101 Remote Desktop 72 Remote operation 72 RES REC LEN key 28 Resolution Rotary knob 28 Result boxes 77 Background transparency 27 Displaying 94 Results Configuring displa...

Страница 111: ...rch 91 Select 92 Show signal bar 90 Show tooltips 89 Undo 89 Zoom 90 Tooltips 89 Show 101 Touchscreen Adjusting 105 Compared with mouse 72 Control elements 77 Lock unlock 27 Usage 72 Transparency 27 T...

Страница 112: ...ted 1326 1026 02 08 XY 80 Zoom 80 Web interface 72 Windows Access 16 X XY waveforms 80 Z Zoom Area 77 Diagram 77 Fingertip 47 Quick access 90 Standard 46 Trying out 46 Waveforms 80 ZOOM Key 33 www all...

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