R&S®FS-K40 Application Firmware for Phase Noise Tests for R&S®Analyzers Software Manual Software Manual Test and Measurement 1161.8209.
® The Software Manual describes the following R&S FS-K40 option andmodels: ( ( ( ( ( ( ® R&S FSG ® R&S FSMR (only for ser. no. >200 000) ® R&S FSP ® R&S FSQ ® R&S FSU ® R&S FSUP The firmware of the instrument makes use of several valuable open source software packages. the most important of them are listed below, together with their corresponding open source license. The verbatimlicense texts are provided on the user documentation CDROM (included in delivery). Package Link License Xitami http://www.
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Basic Safety Instructions Electrical safety If the information on electrical safety is not observed either at all to the extent necessary, electric shock, fire and/or serious personal injury or death may occur. 1. Prior to switching on the product, always ensure that the nominal voltage setting on the product matches the nominal voltage of the AC supply network. If a different voltage is to be set, the power fuse of the product may have to be changed accordingly. 2.
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R&S FS-K40 Table of Contents Table of Contents Documentation Overview................................................................... 7 Conventions Used in the Documentation......................................... 8 1 General Information............................................................................ 9 1.1 Introduction to R&S FS-K40 & Phase Noise Measurements.........................................9 1.2 Installation ......................................................................
R&S FS-K40 Table of Contents 1.9 Limit Line ....................................................................................................................32 1.9.2 Adding Limit Lines........................................................................................................33 1.9.2.2 Name ...........................................................................................................................33 1.9.2.3 Comment ......................................................
R&S FS-K40 Table of Contents 2.3.6 Residual Calculations ..................................................................................................47 2.3.6.1 Use Meas Settings.......................................................................................................47 2.3.6.2 Eval From.....................................................................................................................47 2.3.6.3 To...................................................................
R&S FS-K40 Table of Contents 3.1.1 Notation........................................................................................................................63 3.2 ABORt Subsystem .....................................................................................................65 3.3 CALCulate Subsystem ..............................................................................................66 3.3.1 CALCulate:DELTamarker Subsystem ......................................................
R&S FS-K40 Table of Contents 3.17.3 Key SWEEP...............................................................................................................106 3.17.4 Key LINES .................................................................................................................106 3.17.5 Key MKR....................................................................................................................106 3.17.6 Key MKR->...........................................................
Documentation Overview R&S FS-K40 Documentation Overview The user documentation for the R&S FS-K40 is divided as follows: F F F F F ® R&S FSG ® R&S FSMR ® R&S FSP ® R&S FSQ R&S®FSU Software Manual 1161.8209.
Conventions Used in the Documentation R&S FS-K40 Conventions Used in the Documentation The following conventions are used throughout the R&S FS-K40 Software Manual: Typographical conventions Convention Description “Graphical user interface elements” All names of graphical user interface elements both on the screen and on the front and rear panels, such as dialog boxes, softkeys, menus, options, buttons etc., are enclosed by quotation marks.
General Information R&S FS-K40 1 General Information The Rohde & Schwarz FS-K40 application extends the functionality of the R&S FSP, R&S FSU and R&S FSQ spectrum analyzers to enable phase noise measurements. This manual supports the user in working with R&S FS-K40. It aids the preparation, execution and evaluation of a measurement and gives many helpful hints and examples.
General Information R&S FS-K40 2. Start up the analyzer 3. Press the SETUP hardkey, followed by the GENERAL SETUP softkey and then the OPTIONS softkey. A list of the options currently activated is displayed. 4. Press the INSTALL OPTION softkey. A Dialog is displayed allowing the option key to be entered. 5. Enter the option key supplied with the R&S FS-K40 software. 6. When a valid option key has been supplied a dialog will be displayed explaining that a reboot is required to complete this operation.
General Information R&S FS-K40 1.3 Starting the application Power up the R&S spectrum analyzer. When R&S FS-K40 is correctly installed there will be a hotkey labelled PH NOISE at the bottom of the screen. Press the PH NOISE hotkey to start R&S FS-K40. Note that if the spectrum analyzer is powered down whilst R&S FS-K40 is active, then when the spectrum analyzer is powered up again it will start up in the R&S FS-K40 application. 1.
General Information R&S FS-K40 2. Press the GENERAL SETTINGS softkey to open the General Settings view. 3. Select the Frequency field and enter the desired frequency to measure. 4. Select the Level field and enter the level of the input signal. 5. Select the Verify Frequency & Level field and ensure the check box is switched off. The setting of this field can be changed by pressing the ENTER key or pressing the roll-key. All other settings in this view are sufficient for this example. 6.
General Information R&S FS-K40 7. Enter the start and stop frequency offsets to measure. Note that the selected range is highlighted in the Carrier Frequency Offset table. Note also that the overall expected measurement time is displayed at the bottom of the Carrier Frequency Offset table. 8. Close the Measurement Settings by pressing the PH NOISE hotkey or by pressing ESC. 1.5.
General Information R&S FS-K40 2. Select a single sweep measurement by pressing the SINGLE SWEEP softkey 3. Start the measurement by pressing the RUN hotkey. During the measurement, the text "Running..." is displayed in the Status Bar at the bottom of the screen. The progress bar will update to show progress through the measurement sub-sweeps. Measurement results are updated whilst the measurement is running. The results are displayed in graphical form.
General Information R&S FS-K40 1.6 Navigation This section deals with navigation within the option. Navigation here is taken to mean all forms of interaction with the option except for remote control. The different methods of interacting with the option are: F F F F F F F F Hotkeys Softkeys Hardkeys Numeric Keypad Roll-key Cursor Keys External Keyboard Mouse 1.6.1 Hotkeys Hotkeys are allocated to the seven keys at the bottom edge of the screen.
General Information R&S FS-K40 A keystroke activates the associated hotkey. An activated hotkey changes colour to green, as shown. RUN RUN These hotkeys perform the following operations: The SPECTRUM hotkey exits the R&S FS-K$0 option & returns to the spectrum analyzer with all previous settings restored. SPECTRUM The PH NOISE hotkey returns the user to the main measurement menu of R&S FSK40, where measurement results can be seen.
General Information R&S FS-K40 General settings - Signal characteristics, Data Capture Trigger GENERAL SETTINGS and IQ settings Measurement settings - Trigger and IQ settings should be MEAS SETTINGS VERIFY ON OFF performed Verify On/Off - Enables or disables Signal Verification TRACK LEVEL ON OFF TRACK FREQ ON OFF Track Freq On/Off - Enables or disables Signal Frequency AUTOSCALE Y-AXIS AUTOSCALE - Updates the Y axis scale according to the YAXIS current trace results REF MEAS Fig. 3 1.6.2.
General Information R&S FS-K40 Fig. 4 Setup of the softkey area A softkey in its normal state, where its function is available, is coloured grey with a 3D border. A softkey that is disabled, because its function is not available, is coloured grey without a 3D border. Softkeys may become disabled because of the state of the instrument or because other settings disable the function associated with the softkey. An active softkey (highlighted in green) is used when the softkey selects an item or view.
General Information R&S FS-K40 K40option. PRESET Hardkey When the PRESET hardkey is pressed the R&S FS-K40option is exited and a preset will be performed. Note that all options shall also be preset. HCOPY Hardkey When the HCOPY hardkey is pressed the print manager softkey menu is displayed, allowing selection of the items to be printed. 1.6.4 External Keyboard The external keyboard is optional.
General Information R&S FS-K40 F1 SOFTKEY 1 F2 SOFTKEY 2 F3 SOFTKEY 3 F4 SOFTKEY 4 F5 SOFTKEY 5 F6 SOFTKEY 6 F7 SOFTKEY 7 F8 SOFTKEY 8 F9 SOFTKEY 9 Fig. 2 Quick access to softkeys 1.6.5 Mouse The mouse can be used to select individual parameters within the settings views or data entry dialogs and to activate hotkeys and softkeys. It can also be used to select values from a drop-down list. 1.6.
General Information R&S FS-K40 F F F F F F F F F F 1.6.6.2 Number keys 0 to 9 Starts editing of the selected parameter. This enables a new value to be entered for a parameter directly without having to press ENTER first. The digit will be displayed as the first digit of the newly entered value. Inserts a digit at the cursor position when editing an alphanumeric parameter. Decimal point Inserts a decimal point “.” at the cursor position.
R&S FS-K40 Software Manual 1161.8209.
General Information R&S FS-K40 1.6.6.3 Cursor Keys The keys F F F F F 1.6.6.4 are used to: Navigate between individual parameters within the setting views and some of the pop-up dialogs. Navigate between the individual values within drop-down menus. Move the cursor left & right inside the entry window to reach a particular position in the string during alphanumeric entry.
General Information R&S FS-K40 Selection using cursor keys 1. Cursor , , or until obtaining the required parameter. Within a list of parameters, the Down and Right both move to the next item (down) in the list and the Up and Left keys both move to the previous item (up) in the list. Within a table of parameters, the cursor keys move the cursor in the direction indicated. 2. To start editing the parameter, either press the ENTER key on the numeric keypad, or press the rollkey. 3.
General Information R&S FS-K40 1.6.6.5 Entry of a numeric value Once a parameter has been selected (see above), a new value for a numeric parameter can be entered in a number of ways. With the exception of entry via the number keys, to start editing the parameter, either press the ENTER key on the numeric keypad, or press the rollkey before following the instructions below.
General Information R&S FS-K40 Entry using rollkey P Rotate the rollkey until reaching the required value. Turning the rollkey clockwise increases the value, turning it counter clockwise decreases the value. The application prevents the minimum and maximum values of the parameter from being exceeded and displays an “Out of range“ message box if attempted. N.
General Information R&S FS-K40 Correcting the entry 1. Position the cursor to the right of the digit which is to be deleted using the cursor keys or . 2. Press the BACK key. The digit to the left of the cursor is deleted. 3. Enter new digits. Each digit is inserted to the left of the cursor, the other digits are shifted right. Aborting the entry 1. Press the ESC key during parameter editing. The original parameter value is restored. The new entry is deleted. 2.
General Information R&S FS-K40 Selection of setting using mouse When the parameter is selected and ready for editing, select a new setting using the mouse by left-clicking on the new setting from the drop-down list. The new setting of the parameter is set immediately. Selection of setting using external keyboard 1. Select setting using cursor keys. 2. Press ENTER to set the parameter to the new value. 1.6.6.
General Information R&S FS-K40 Toggle between the two states of a checkbox using external keyboard P Press ENTER to toggle between the two states. 1.6.7 Status Bar & Title Bar 1.6.7.1 Title Bar The title bar is visible at the very top of the display when R&S FS-K40 is active and no settings views are displayed. Fig. 5 Title Bar The centre of the title bar shows the name of the active application. For R&S FS-K40, this is “PHASE NOISE”. 1.6.7.
General Information R&S FS-K40 1.7 Save/Recall This section of the user manual describes the Save/Recall facility of the option. FILE The FILE hardkey brings up the Save/Recall softkey menu. Any settings views on display when the save/recall softkey menu is displayed shall be closed. Fig. 7 Save/Recall softkey menu The save/recall facility provided by R&S FS-K40 is exactly the same as that provided by the host analyser.
General Information R&S FS-K40 1.8 Printing This section of the user manual describes print facility of the option HCOPY The HCOPY hardkey brings up the print softkey menu. Any settings views on display when the print softkey menu is displayed shall be closed. Fig. 8 Print softkey menu The print facility provided by R&S FS-K40 is exactly the same as that provided by the host analyser. Refer to the user manual for the spectrum analyzer for details of the print facility operation.
General Information R&S FS-K40 1.9 Limit Line This section of the user manual describes limit line facility of the option. LINES The LINES hardkey brings up Limit Line selection view and softkey menu. Any settings views on display when the limit lines selection view is displayed shall be closed. Fig. 9 Limit Line selection view From the Limit Line selection view it is possible to add new limit lines, edit existing limit lines, delete limit lines and enable/disable the display of limit lines.
General Information R&S FS-K40 1.9.2 Adding Limit Lines New limit lines can be defined by pressing the NEW softkey from the limit line selection softkey menu. NEW The NEW softkey allows a new limit line to be defined. After pressing the NEW softkey the limit line selection view will be replaced with the limit line data view. Fig. 10 Limit Line data view (for a new limit line) Once the limit line data has been entered as required, press the SAVE softkey to save the changes.
General Information R&S FS-K40 1.9.2.3 Comment The Comment field allows the user to attach a textual description to a limit line. The comment can contain any combination of number, letters and characters. 1.9.2.4 Trace No. The Trace No. field allows the user to specify the id of the trace to which the limit line is to be applied. Each limit may only be applied to one tarce at a time. Each trace may have multiple limit line applied to it at any given time. 1.9.2.
General Information R&S FS-K40 INSERT The INSERT softkey inserts a new row in the Limit Table directly above the row currently selected. The cursor will be moved to the corresponding column in the new row ready for detailed entry. The INSERT softkey shall be disabled when the maximum number of entries in the Limit Table has been reached Fig. 12 Inseting limit line data DELETE The DELETE softkey deletes the currently selected row in the Limit Table. Note that no confirmation is required for this action.
General Information R&S FS-K40 Fig. 13 Limit Line data view (for an existing limit line) Once the limit line data has been modified as required, press the SAVE softkey to save the changes. Pressing the ESC hardkey will display a prompt requesting whether the changes to the limit line data should be stored or not. Select the appropriate response with the cursor keys or scroll key and hit ENTER or press the rollkey to perform the selected action. 1.9.
General Information R&S FS-K40 To enable/disable a limit line select the required limit line in the limit line selection view. When the required limit line is highlighted press the ENTER key or press the rollkey to toggle the state of the limit line between enabled and disabled. When a limit line is enabled a symbol is shown in the Enabled field. Note that only one limit line of each type can be active at a given time. Fig.
Measurements & Settings R&S FS-K40 2 Measurements & Settings This section contains a detailed description of all measurement modes, settings & results. It covers the following subjects: F F F F F F F Running measurements Measurement results General settings Measurement settings Marker settings Trace Settings Sweep Settings 2.1 Running measurements Fig. 15 Phase Noise Measurement Results To start a measurement, press the RUN hotkey.
Measurements & Settings R&S FS-K40 If the Verify Frequency and Level parameter is selected in the General Settings viewthen FS-K40 will then check to see if there is a Signal within the specified Frequency and Level Tolerance ranges relative to the specified Signal Frequency and Level. If no Signal is found, or a Signal is found, which is outside the tolerance range then a message will be displayed in the status bar (“No signals found within tolerance range”) and the measurement will be aborted.
Measurements & Settings R&S FS-K40 2.2 Measurement results The tabular section below the title bar shows the overall measurement settings used to obtain the current measurement results. Fig. 16 Overall measurement settings summary The settings summary includes the following information: 3. Signal Frequency The frequency of the measured input signal.
Measurements & Settings R&S FS-K40 2.3 General Settings This section of the user manual describes the General Settings view where all settings related to the overall measurement can be modified, that is the Signal Characteristics, Display settings, Trace settings, Residual calculation settings and spot noise settings. GENERAL SETTINGS The GENERAL SETTINGS softkey brings up the General Settings view. Fig.
Measurements & Settings R&S FS-K40 2.3.2 Signal Settings The Signal Settings are the general settings concerning the level and frequency of the signal to be measured. 2.3.2.1 Frequency Frequency specifies the Center Frequency of the signal to be measured. Remote SENS:FREQ:CENT 20 GHz 2.3.2.2 Level Level specifies the expected level of the RF input signal. Remote POW:RLEV 1 2.3.2.3 Sweep Forward Sweep Forward is used to determine the sweep direction for the current measurement.
Measurements & Settings R&S FS-K40 2.3.2.4 Verify Freq and Level Verify Freq enables a search across a frequency tolerance range, for the carrier of greatest magnitude. Carrier frequency and level are measured. If the level is within a level tolerance range, the measured level overrides the specified Level. Otherwise the measurement is aborted. This should be used when the carrier frequency is not known precisely. When Verify Freq is ON, Frequency Tolerance and Level Tolerance parameters become enabled.
Measurements & Settings R&S FS-K40 2.3.2.6 Level Tolerance Level Tolerance parameter is an offset relative to the Level. It is used to verify the Level of the input signal. Level Tolerance specifies the maximum and mimum deviation from the specified Level setting that the input signal may vary by and still pass the verification i.e. measured level between (Level+Level_Tolerance) and (Level-Level_Tolerance) is accepted. Remote SENS:RLEV:VER:TOL 2.3.3 AFC Settings 2.3.3.
Measurements & Settings R&S FS-K40 2.3.4 Display Settings 2.3.4.1 X Axis Start X Axis Start parameter specifies the min frequency for the X axis. When X Axis Start changes the Start parameter in Measurement Settings view gets updated accordingly. Remote SENS:FREQ:STAR 2.3.4.2 X Axis Stop X Axis Stop parameter specifies the max frequency for the X axis. When X Axis Stop changes the Stop parameter in Measurement Settings view gets updated accordingly. Remote SENS:FREQ:STOP 2.3.4.
Measurements & Settings R&S FS-K40 2.3.4.4 Y Axis Top Y Axis Top parameter specifies the max Phase Noise level in y-axis for the trace results. Remote DISP:WIND1:TRAC1:Y:SCAL:RLEV 2.3.4.5 Y Axis Range Y Axis Range parameter specifies the distance from the top to the origin in y-axis. Remote SENS:RLEV:VER:TOL 2.3.5 Trace Settings 2.3.5.1 Trace Offset Trace Offset is an arithmetical reference level offset which is added to the y axis labelling. Remote DISP:WIND1:TRAC1:Y:SCAL:RLEV:OFFS 2.3.5.
Measurements & Settings R&S FS-K40 Remote DISP:WIND1:TRAC1:SMO:APER 2.3.5.3 Smoothing Type Smoothing Type whether linear or logarithmic smoothing is to be used when trace smoothing is performed. For more details regarding smoothing and the algorithm used see section Trace Menu Remote DISP:WIND1:TRAC1:SMO:TYPE 1 2.3.6 Residual Calculations 2.3.6.1 Use Meas Settings Use Meas Settings specifies whether to use the whole measurement range or the user defined evaluation range for the residual calculations.
Measurements & Settings R&S FS-K40 The Eval From setting cannot be set higher than the To settings Remote CALC1:EVAL:STAR 2.3.6.
Measurements & Settings R&S FS-K40 2.3.7.2 Offset Freq1,2,3,4 The Offset Freq parameters allow up to four frequency points to be specified at which spot noise calculations will be performed. If an offset frequency is specified which is outside the measurement frequency range then no results will be displayed fo that offset frequency. Remote CALC1:SNO2:X 1 kHz 2.3.8 Analyzer Settings 2.3.8.1 PreSelector The PreSelector parameter allows the preselector (if installed) to be enabled or disabled.
Measurements & Settings R&S FS-K40 2.4 Meas Settings This section of the user manual describes the Meas (Short for Measurement) Settings view where the settings associated with measurement sweep are specified. The MEAS SETTINGS softkey brings up the Meas Settings view. Fig.
Measurements & Settings R&S FS-K40 2.4.1 Sweep Mode Settings 2.4.1.1 Sweep Mode When the Sweep Mode parameter is set the Carrier Frequency Offset Table gets updated from the instruments default settings . The possible values of the Sweep Mode parameter are: Fast Not averaged. The measurement runs very fast. As the average column is set to 1 for all sub-bands. Normal Normal averaged. The measurement runs slower then the fast mode, but thesub-bands are averaged more. Averaged Highly averaged.
Measurements & Settings R&S FS-K40 2.4.3 Carrier Frequency Offset Table From: This column lists the start frequency of each sub-band. To: This column lists the stop frequency of each sub-band. RBW: This column lists the resolution filter bandwidth used for each sub-band. Enter values in steps of 1/3/10. Range: 0.1 % .. 30 % of the start frequency in that row. Average: This column lists the number of sweeps to average over for each subband. Range: 1 ..
Measurements & Settings R&S FS-K40 2.4.4.1 RBW The RBW parameter sets all the RBW settings in the Carrier Frequency Offset table to a proportion of the start frequency for each sub-band. The resulting RBW is rounded to the nearest 1/3/10 steps. 2.4.4.2 Average The Average parameter sets all the Average settings in the Carrier Frequency Offset table to the specified value. 2.4.4.3 FFT The FFT parameter sets all the FFT settings in the Carrier Frequency Offset table to the specified value.
Measurements & Settings R&S FS-K40 Fig. 19 Marker Menu From the marker menu it is possible to adjust the marker position, change marker mode between normal and delta and switch the marker display on and off. 2.5.1 Adjusting Markers The marker can be adjusted by pressing the marker softkey in the marker softkey menu. MARKER The MARKER softkeys displays the Marker pop-up dialog for the appropriate marker (1 to 4).
Measurements & Settings R&S FS-K40 MARKER NORM DELTA The MARKER NORM DELTA softkey toggles the currently active marker between normal and delta marker mode. Remote CALC1:MARK1 … CALC1:DELT1 … 2.5.3 Toggle Marker Display Markers can be toggled by pressing the Marker soft-key as follows: MARKER 1 MARKER 1 MARKER 1 Pressing the MARKER softkey when the marker is not displayed (softkey has grey background) causes the Marker pop-up to be displayed and the marker to be switched on.
Measurements & Settings R&S FS-K40 Fig. 20 Marker Extension Softkey Menu SELECT MARKER Pressing the SELECT MARKER displays the Select Marker pop-up dialog. This allows a marker (1 to 4) to be selected. Selecting 0 selects delta marker 1. As soon as a marker has been selected the appropriate Marker pop-up dialog is displayed. This allows the position of the selected marker to be adjusted: Remote CALC1:MARK1:TRAC MKR->TRACE Pressing the MKR->TRACE displays the Select Trace pop-up dialog.
Measurements & Settings R&S FS-K40 Fig. 21 Trace Menu SELECT TRACE When the SELECT TRACE softkey is pressed, the Select Trace pop-up dialog is displayed. Up to 3 traces can be selected. The selected trace will be the active trace for selecting the trace mode (Clear / Write, Average, View, Blank). Remote -CLEAR/WRITE The CLEAR/WRITE softkey activates the overwrite mode for the collected measured values for the active trace, ie the trace is overwritten by each sweep.
Measurements & Settings R&S FS-K40 For a sweep count = 0 , a running average is calculated according to the following formula: TRACE = 9 * TRACE + meas. value 10 Due to the weighting between the new measured value and the trace average, past values have practically no influence on the displayed trace after about ten sweeps. With this setting, signal noise is effectively reduced without need for restarting the averaging process after a change of the signal.
Measurements & Settings R&S FS-K40 BLANK The BLANK softkey activates the blanking of the active trace. Remote DISP:WIND1:TRAC1:STAT SWEEP COUNT The SWEEP COUNT softkey activates the entry of the number of sweeps used for averaging. The allowed range of values is 0 to 32767. The default setting is 0. The number of sweeps used for averaging is the same for all active traces in the selected diagram. The setting of the sweep count in the trace menu is equivalent to the setting in the sweep menu.
Measurements & Settings R&S FS-K40 2.6.2 Trace Maths Menu T1-T3->T1 The T1-T3->T1 softkey enables the trace maths expression to substract Trace3 from Trace1 and copies the results into Trace1. Remote CALC:MATH:EXPR:DEF (TRACE1-TRACE3) T2-T3->T2 The T2-T3->T2 softkey enables the trace maths expression to substract Trace3 from Trace2 and copies the results into Trace2.
Measurements & Settings R&S FS-K40 Remote FORM[:DATA] ASCii MMEM:STOR1:TRAC1,’TRACE.DAT’ DECIM SEP The DECIM SEP softkey selects the decimal separator between ’.’ (decimal point) and ’,’ (comma) with floating-point numerals for the function ASCII FILE EXPORT. With the selection of the decimal separator different language versions of evaluation programs (eg MS-Excel) can be supported. Remote FORM DEX:DSEP POIN 2.7 Sweep Menu SWEEP The SWEEP hardkey brings up the Sweep softkey menu.
Measurements & Settings R&S FS-K40 CONTINUOUS SWEEP The CONTINUOUS SWEEP softkey activates the continuous sweep mode. The next measurement sweep activated (using the RUN hotkey) will run in continuous mode Remote INIT:CONT ON SINGLE SWEEP The SINGLE SWEEP softkey activates the single sweep mode. The next measurement sweep activated (using the RUN hotkey) will run in single sweep mode.
Remote Control R&S FS-K40 3 Remote Control 3.1 Description of commands This section specifies all the remote control commands specific to the R&S FS-K40 option. Only those commands provided for this option are specified. For details of remote control commands provided by the host analyzer please refer to the analyzer user manual. 3.1.
Remote Control R&S FS-K40 (see Section 3.5.2). The instrument itself does not distinguish between upper and lower case letters. Special characters | A selection of key words with an identical effect exists for several commands. These keywords are indicated in the same line; they are separated by a vertical stroke. Only one of these keywords needs to be included in the header of the command. The effect of the command is independent of which of the keywords is used.
Remote Control R&S FS-K40 MINimum This keyword sets the parameter to the smallest possible value. MAXimum This keyword sets the parameter to the largest possible value. DEFault This keyword is used to parameter to its default value. UP This keyword increments the parameter value. DOWN This keyword decrements the parameter value. The numeric values associated to MAXimum/ MINimum/DEFault can be queried by adding the corresponding keywords to the command.
Remote Control R&S FS-K40 3.3 CALCulate Subsystem Note for all CALCulate commands only CALCulate1 is valid in K40 as K40 has only a single measurement screen. 3.3.1 CALCulate:DELTamarker Subsystem The CALCulate:DELTamarker subsystem checks the delta marker functions in the K40 option. Note that for all delta marker commands the suffix for the CALCulate must be 1.
Remote Control R&S FS-K40 Example CALC1:DELT:TRAC 'Assigns marker CALC2:MARK:TRAC 'Assigns marker 2 1 in screen A to trace 2. 5 1 in screen B to trace 5. Characteristics *RST value: 1 SCPI: device-specific CALCulate<1|2>:DELTamarker<1 to 4>:X This command positions the selected delta marker to the indicated frequency or time in the selected measurement window. Example CALC1:DELT:X 2MHZ" Positions marker 1 in screen A to time 2 MHz.
Remote Control R&S FS-K40 Example CALC:EVAL 0 'Specifies that residual noise is calculated over the entire trace Characteristics *RST value: 0 SCPI: device-specific CALCulate<1|2>:EVALuation:STARt This command specifies the start frequency for residual noise calculation when CALCulate<1|2>:EVALuation[:STATe] is switched ON.
Remote Control R&S FS-K40 Each limit line can be assigned a name. An explanatory comment can also be given for Example. Definition and use of a new limit line 5 for trace in the Noise Figure trace screen with the following features: F F upper limit line 5 ref.
Remote Control R&S FS-K40 CALCulate:LIMit<1 to 8>:COMMent This command defines a comment for the limit line selected. Example CALC:LIM5:COMM 'Upper limit for Gain' 'Defines the comment for limit line 5. Characteristic *RST: value SCP: device-specific CALCulate:LIMit<1 to 8>:COPY 1 to 8 | This command copies one limit line onto another one. 1 to 8 = number of the new limit line name = name of the new limit line given as a string Example CALC:LIM1:COPY 2 'Copies limit line 1 to line 2.
Remote Control R&S FS-K40 CALCulate:LIMit<1 to 8>:FAIL? This command queries the result of the limit check of the indicated limit line. It should be noted that a complete sweep must have been performed for obtaining a valid result. A synchronization with *OPC, *OPC? or *WAI should therefore be provided. The result of the limit check responds with 0 for PASS and 1 for FAIL. Example INIT;*WAI 'Starts a new measurement and waits for its end. CALC:LIM3:FAIL? 'Queries the result of the check for limit line 3.
Remote Control R&S FS-K40 CALCulate:LIMit<1 to 8>:TRACe < numeric_value > This command assigns a limit line to a particular trace.. Examples: “CALC:LIM2:TRAC 'Assigns limit line 2 to the trace 1. Characteristics *RST value: 1 SCPI: device-specific 3.3.3.2 CALCulate:LIMit:CONTrol Subsystem The CALCulate:LIMit:CONTrol subsystem defines the x-axis (CONTrol-axis).
Remote Control R&S FS-K40 3.3.3.3 CALCulate:LIMit:LOWer Subsystem The CALCulate:LIMit:LOWer subsystem defines the lower limit line. Note that if a set command is issued in this subsystem the limit line effected is automatically converted to a lower limit line. CALCulate:LIMit<1 to 8>:LOWer[:DATA] ,... CALCulate:LIMit<1 to 8>:LOWer:STATe ON | OFF CALCulate:LIMit<1 to 8>:LOWer:SHIFt CALCulate:LIMit<1 to 8>:LOWer[:DATA] ,...
Remote Control R&S FS-K40 CALCulate:LIMit<1 to 8>:LOWer:SHIFt This command shifts a limit line by the indicated value in Y-direction. The line is shifted by modifying the individual y values Example CALC:LIM3:LOW:SHIF 20DB 'Shifts all Y values of limit line 3 by 20 dB. Characteristics *RST value: SCPI: device-specific This command is an event and is therefore not assigned an *RST value and has no query. 3.3.3.
Remote Control R&S FS-K40 CALCulate:LIMit<1 to 8>:UPPer:SHIFt This command moves a limit line by the indicated value in Y-direction. The line is shifted by modifying the individual y values. Example CALC:LIM3:UPP:SHIF 20DB 'Shifts all Y values of limit line 3 by 20 dB. Characteristics *RST value: SCPI: device-specific This command is an event and is therefore not assigned an *RST value and has no query.
Remote Control R&S FS-K40 Example CALC1:MATH (TRACE1 – TRACE3 'Selects the subtraction of trace 1 from 'trace 3 in screen A and puts the results 'in trace 1. CALC2:MATH (TRACE2 - TRACE3) 'Selects the subtraction of trace 2 from trace 3 in screen B and puts the results in trace 2. Characteristics *RST value: SCPI: conforming CALCulate:MATH:STATe This comman switches the mathematical relation of traces on or off. Example CALC:MATH:STAT ON Characteristics *RST value: SCPI: conforming 3.3.
Remote Control R&S FS-K40 CALCulate<1|2>:MARKer1:FUNCtion ZOOM This command zooms the trace by the specified numeric level around marker 1. Example CALC1:MARK1:FUNC:ZOOM 10 'Zooms in around marker 1 by a factor of 10. Characteristics *RST value: 1 SCPI: device-specific CALCulate<1|2>:MARKer<1 to 4>:STATe This command switches on or off the currently selected marker in the selected measurementwindow. If no indication is made, marker 1 is selected automatically.
Remote Control R&S FS-K40 CALCulate<1|2>:MARKer<1 to 4>:Y This command positions the selected marker to the indicated Y position in the selected measurement window. The units for this command are dBc/Hz. Example CALC:MARK:Y? 'Outputs the measured value of marker 1 in screen A. Characteristics *RST value: SCPI: device-specific 3.3.6 CALCulate:SNOise Subsystem The CALCulate:SNOise subsystem allows spot noise measurement points to be set, and results returned.
Remote Control R&S FS-K40 CALCulate<1|2>:SNOise<1 to 4>:X This command positions the selected spot noise marker to the indicated frequency Example CALC1:SNO:X 2MHz 'Positions spot noise marker 1 in screen A to time 2 MHz. Characteristics *RST value: SCPI: device-specific CALCulate<1|2>:SNOise<1 to 4>:Y This command returns the measured spot noise marker result in the selected measurement window. The units for this command are dBc/Hz.
Remote Control R&S FS-K40 CONFigure:POWer:EXPected:RF This remote control command is used to specify the input power level of the source signal as supplied to the Analyzer RF input. Example CONF:POW:EXP:RF 9 'The FS-K40 option assumes an input signal strength of 9 dBm Characteristics *RST value: 0 SCPI: device-specific CONFigure:REFMeas ONCE This remote control command is used to configure and initiate a reference measurement.
Remote Control R&S FS-K40 The number of measurements for AVERage is defined with the command SENSe:SWEep:COUNt. It should be noted that synchronization to the end of the indicated number of measurements is only possible in single sweep mode.
Remote Control R&S FS-K40 Example DISP:TRAC1:SMO:APER 1 'Sets that smoothing window for trace 1 to 1 % Characteristics *RST value: OFF SCPI: conforming DISPlay[:WINDow<1|2>]:TRACe<1…3>:SMOothing[:STATe] This remote control command specifies whether smoothing of a particular trace is carried out.
Remote Control R&S FS-K40 DISPlay[:WINDow<1|2>]:TRACe<1…3>:Y[:SCALe] This command defines the display range of the Y-axis (level axis) in the selected measurement window. The numeric suffix in TRACe<1 to 3> is irrelevant. Example DISP:WIND:TRAC:Y? 'Returns the current Y Axis range in use Characteristics *RST value: 100 dB SCPI: device-specific DISPlay[:WINDow<1|2>]:TRACe<1…3>:Y[:SCALe]:AUTO This command switches automatic scaling for the Y axis on and off.
Remote Control R&S FS-K40 FETCh:PNOise:RPM? This command returns the measured Residual PM result for the specified trace. Example FETC:PNO2:RPM? 'Returns the Residual PM result for Trace2 Characteristics *RST value: SCPI: device-specific FETCh:PNOise:RMS? This command returns the measured Residual RMS result for the specified trace. Example FETC:PNO3:RMS? 'Returns the Residual RMS result for Trace3 Characteristics *RST value: SCPI: device-specific 3.
Remote Control R&S FS-K40 FORMat[:DATA]:DEXPort:DSEParator POINt | COMMa This command defines which decimal separator (decimal point or comma) is to be used for outputting measurement data to the file in ASCII format. Different languages of evaluation programs (eg MS-Excel) can thus be supported. Example FORM:DEXP:DSEP POIN 'Sets the decimal point as separator. Characteristics *RST value: POINt SCPI: device-specific 3.
Remote Control R&S FS-K40 INITiate:DISPlay This command configures the behaviour of the display during a single sweep. INITiate:DISPlay OFF means that the display is switched off during the measurement, INITiate:DISPlay ON means that the display is switched on during the measurement. The numeric suffix of INITiate is irrelevant with this command. Example INIT:DISP OFF 'The display is switched off during single measurements Characteristics *RST value: SCPI: device-specific 3.
Remote Control R&S FS-K40 3.10 INSTrument Subsystem INSTrument:NSELect INSTrument:SELect PNOise INSTrument:NSELect This remote control command selects active operation of the R&S FS-K40 option by specifying its associated option number. Example INST:NSEL 20 'The R&S FS-K40 option will be selected as the active option.
Remote Control R&S FS-K40 3.12 SENSe Subsystem The SENSe command is used to set and get the values of parameters in the remote instrument. The get variant of the SENSe command differs from set in that it takes no parameter values (unless otherwise stated) but is followed by the character ‘?’ and will return the parameter’s value in the same format as it is set. e.
Remote Control R&S FS-K40 Example SENS:BWID:TYPE FFT 'Sets the RBW to use FFT filtering Characteristics *RST value: FFT SCPI: conforming [SENSe]:FREQuency:CENTer The remote control command is used to specify the frequency that the Analyzer will use to make measurements against the input signal. Example SENS:FREQ:CENT 50MHZ 'The FS-K40 option uses the specified frequency value to set the analyzer detection frequency.
Remote Control R&S FS-K40 [SENSe]:FREQuency:TRACk The remote control command switches the automatic frequency control on and off. Example SENS:FREQ:TRACk ON 'Sets the automatic frequency control to ON. Characteristics *RST value: ON SCPI: conforming [SENSe]:FREQuency:VERify[:STATe] The remote control command is used to specify whether frequency and level verification are to be performed before a phase noise measurement.
Remote Control R&S FS-K40 [SENSe]:LIST:RANGe<1..20>:BWIDth[:RESolution] This command selects the resolution bandwidth (RBW) for the specified sub-band Example SENS:LIST:RANG2:BAND 10KHZ 'Sets the RBW to 10 KHz Characteristics *RST value: sub-band dependent SCPI: conforming [SENSe]:LIST:RANGe<1..
Remote Control R&S FS-K40 [SENSe]:POWer:RLEVel:VERify:TOLerance The remote control command is used to specify the power tolerance for the verification of the signal. If the signal level varies from the specified level by a value greater than the tolerance then the verification will fail. The setting for this parameter only has an effect if the [SENSe]:FREQuency:VERify:STATe or [SENSe]:POWer:RLEVel:VERify:STATe command is set to ON.
Remote Control R&S FS-K40 Example SENS:SWEep:FORWard 1 'The sweep direction is set to sweep from start to stop frequency Characteristics *RST value: 0 SCPI: conforming [SENSe]:SWEep:MODe FAST | NORMal | AVERaged | MANual The remote control command specifies the general sweep mode for the measurement. The sweep mode is used to set the RBW, Average and FFT settings for each sub-sweep to specific values. When the sweep mode is set to MANual then the sub-sweep settings may be speciifed.
Remote Control R&S FS-K40 3.13 STATus Subsystem The STATus subsystem contains the commands for the status reporting system (See Section Status reporting registers). *RST does not influence the status registers.
Remote Control R&S FS-K40 STATus:QUEStionable:LIMit<1|2>:ENABle 0 to 65535 This command sets the bits of the ENABle section of the STATus:QUEStionable:LIMit register for screen A and B. The ENABle register selectively enables the individual events of the associated EVENt section for the summary bit. Example STAT:QUES:LIM:ENAB 65535 'All events bits will be represented in the LIMit summary bit.
Remote Control R&S FS-K40 STATus:QUEStionable:PNOise:CONDition? This command queries the contents of the CONDition section of the STATus:QUEStionable:PNOIse register. Readout does not delete the contents of the CONDition section. Example STAT:QUES:PNOI:COND? Characteristics *RST value: 0 SCPI: conforming STATus:QUEStionable:PNOise:ENABle 0 to 65535 This command sets the bits of the ENABle section of the STATus:QUEStionable:PNOIse register.
Remote Control R&S FS-K40 is the sum of the decimal values of the bits that are to be enabled. Example STAT:QUES:PNOi:NTR 65535 'All condition bits will be summarised in the Event register when a positive transition occurs. Characteristics *RST value: 0 SCPI: device-specific STATus:QUEStionable:POWer[:EVENt]? This command queries the contents of the EVENt section of the STATus:QUEStionable:POWer Register. Readout deletes the contents of the EVENt section.
Remote Control R&S FS-K40 STATus:QUEStionable:POWer:PTRansition 0 to 65535 This command determines what bits in the STATus:QUEStionable:POWer Condition register will set the corresponding bit in the STATus:QUEStionable:POWer Event register when that bit has a positive transition (0 to 1).The variable is the sum of the decimal values of the bits that are to be enabled. Example STAT:QUES:POW:PTR 65535 'All condition bits will be summarised in the Event register when a positive transition occurs.
Remote Control R&S FS-K40 3.14 TRACe Subsystem The TRACe subsystem controls access to the instrument’s internal trace memory. TRACE[:DATA] TRACE1 | TRACE2 | TRACE3 This command returns all the measured data that relates to the currently selected measurement type. The data is returned as a comma separated list of sequential Phoise Noise trace results. Example TRAC:DATA? TRACE1 'The measurement data for the selected graph is returned. Characteristics *RST value: SCPI: conforming 3.
Remote Control R&S FS-K40 & 15 = Logical AND = logical OR of all bits = indicates Created by Analyser, Used and accessible within FS-K40 0 = indicates FS-K40 only. 0 0 = indicates NOT available in FS-K40. = Provided by FSP Kernal Main.
Remote Control R&S FS-K40 3.15.1 Description of the Status Registers All the status registers shown in FIg.
Remote Control R&S FS-K40 3.15.1.2 STATus:QUEStionable Register This register comprises information about indefinite states which may occur if the unit is operated without meeting the specifications. It can be queried by commands STATus:QUEStionable: CONDition? and STATus:QUEStionable[:EVENt]?. Bit No Meaning 0 to 2 These bits are not used 3 POWer This bit is set if a questionable power occurs 4 TEMPerature This bit is set if a questionable temperature occurs.
Remote Control R&S FS-K40 3.15.1.4 Bit No Meaning 0 LIMit 1 FAIL This bit is set limit line 1 is violated 1 LIMit 2FAIL This bit is set limit line 2 is violated 2 LIMit 3 FAIL This bit is set limit line 3 is violated 3 LIMit 4 FAIL This bit is set limit line 4 is violated. 4 LIMit 5 FAIL This bit is set limit line 5 is violated. 5 LIMit 6 FAIL This bit is set limit line 6 is violated. 6 LIMit 7 FAIL This bit is set limit line 7 is violated.
Remote Control R&S FS-K40 3.17 Table of softkeys with assignment of IEC/IEEE bus commands 3.17.
Remote Control R&S FS-K40 3.17.
Remote Control R&S FS-K40 3.17.3 Key SWEEP CONTINUOUS SWEEP INITiate:CONTinuous ON SINGLE SWEEP INITiate:CONTinuous OFF SWEEP COUNT [SENSe:]SWEep:COUNt SGL SWEEP DISP OFF :INITiate:DISPlay OFF 3.17.4 Key LINES :CALCulate:LIMit<1 to 8>… 3.17.
Remote Control R&S FS-K40 3.17.7 Hotkeys SPECTRUM PH NOISE RUN Software Manual 1161.8209.
List of Warnings & Error Messages R&S FS-K40 4 List of Warnings & Error Messages The list of possible warning & error messages are shown below : Status Bar Message Description Cannot run measurement - no traces are active This message is displayed when all the traces are switched off or in VIEW mode.
Index R&S FS-K40 Index 0 to 9 (Key) ........................................................................ 19 SWEEP .................................................................... 18, 58 Hardkeys ........................................................................... 18 Hotkey ............................................................................... 15 PH NOISE ...................................................................... 16 RUN .................................................
Index R&S FS-K40 Selection using external keyboard .................................. 23 Selection using mouse.................................................... 23 Preset Settings .................................................................. 49 Printing .............................................................................. 29 Q Quick Start......................................................................... 12 R Residual Calculations ...................................................
