Rohde & Schwarz FSW-K40 User Manual

Spectrum analyzers/phase noise measurements

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R&S

FSW-K40

Phase Noise Measurements

User Manual

(;×êä2)

1173.9286.02 ─ 15

Table of Contents

Chapters

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Summary of Contents for Rohde & Schwarz FSW-K40

Page 1 ® R&S FSW-K40 Phase Noise Measurements User Manual (;×êä2) 1173.9286.02 ─ 15...
Page 2 R&S FSW85 (1312.8000K85) The following firmware options are described: ● R&S FSW-K40 (1313.1397.02) © 2017 Rohde & Schwarz GmbH & Co. KG Mühldorfstr. 15, 81671 München, Germany Phone: +49 89 41 29 - 0 Fax: +49 89 41 29 12 164 Email: info@rohde-schwarz.com...
Page 3: Table Of Contents
® Contents R&S FSW-K40 Contents 1 Preface....................5 About this Manual......................5 Documentation Overview..................... 6 Conventions Used in the Documentation..............7 2 Welcome to the Phase Noise Measurement Application....9 Starting the Application....................9 Understanding the Display Information..............10 3 Measurements and Result Displays...........14 4 Measurement Basics................
Page 4 ® Contents R&S FSW-K40 Configuring Graphical Result Displays..............51 Configure Numerical Result Displays............... 56 Using Limit Lines......................58 Using Markers......................65 7 How to Configure Phase Noise Measurements.........68 Performing a Basic Phase Noise Measurement............68 Customizing the Measurement Range..............68 8 Remote Control Commands for Phase Noise Measurements..70 Common Suffixes......................70...
Page 5: Preface
® Preface R&S FSW-K40 About this Manual 1 Preface 1.1 About this Manual This User Manual provides all the information specific to the application. All general instrument functions and settings common to all applications and operating modes are described in the main R&S FSW User Manual.
Page 6: Documentation Overview
® Preface R&S FSW-K40 Documentation Overview 1.2 Documentation Overview This section provides an overview of the R&S FSW user documentation. You find it on the product page at: www.rohde-schwarz.com/manual/FSW Getting started manual Introduces the R&S FSW and describes how to set up and start working with the prod- uct.
Page 7: Conventions Used In The Documentation
® Preface R&S FSW-K40 Conventions Used in the Documentation Data sheet and brochure The data sheet contains the technical specifications of the R&S FSW. It also lists the options and their order numbers as well as optional accessories. The brochure provides an overview of the instrument and deals with the specific char- acteristics.
Page 8 ® Preface R&S FSW-K40 Conventions Used in the Documentation 1.3.2 Conventions for Procedure Descriptions When describing how to operate the instrument, several alternative methods may be available to perform the same task. In this case, the procedure using the touchscreen is described.
Page 9: Welcome To The Phase Noise Measurement Application
2 Welcome to the Phase Noise Measurement Application The R&S FSW-K40 is a firmware application that adds functionality to measure the phase noise characteristics of a device under test with the R&S FSW signal analyzer. This user manual contains a description of the functionality that the application pro- vides, including remote control operation.
Page 10: Understanding The Display Information
® Welcome to the Phase Noise Measurement Application R&S FSW-K40 Understanding the Display Information The number of channels that can be configured at the same time depends on the avail- able memory on the instrument. Only one measurement can be performed at any time, namely the one in the currently active channel.
Page 11 ® Welcome to the Phase Noise Measurement Application R&S FSW-K40 Understanding the Display Information Measurement status The application shows the progress of the measurement in a series of green bars at the bottom of the diagram area. For each half decade in the measurement, the applica- tions adds a bar that spans the frequency range of the corresponding half decade.
Page 12 ® Welcome to the Phase Noise Measurement Application R&S FSW-K40 Understanding the Display Information Drift Difference between the 1st level that has been measured and the level that has been measured last. In continuous sweep mode, the drift is the difference between the 1st level that has been measured in the 1st sweep and the level that has been measured last.
Page 13 ® Welcome to the Phase Noise Measurement Application R&S FSW-K40 Understanding the Display Information Figure 2-5: Window title bar information of the phase noise application 1 = Window number 2 = Window type 3 = Trace color and number 4 = Trace mode...
Page 14: Measurements And Result Displays
® Measurements and Result Displays R&S FSW-K40 3 Measurements and Result Displays Access: The Phase Noise application measures the phase noise of a single sideband of a car- rier. It features several result displays. Result displays are different representations of the measurement results.
Page 15: Residual Noise
® Measurements and Result Displays R&S FSW-K40 The measurement results are displayed as traces in the diagram area. Up to six active traces at any time are possible. Each of those may have a different setup and thus show different aspects of the measurement results.
Page 16: Spot Noise
® Measurements and Result Displays R&S FSW-K40 Type Shows the number of the trace that is integrated (T[x]). Start / Stop Offset Shows the start and stop offset of the integration interval. Int. PHN Shows the Integrated Phase Noise. The integral is calculated over the frequency range defined by the Start and Stop Offset values.
Page 17: Spur List
® Measurements and Result Displays R&S FSW-K40 Type Shows where the spot noise offset frequency comes from. By default, the applica- tion evaluates the spot noise for the first offset frequency of a decade only (10 beginning at 1 kHz). However, you can add up to five customized offsets frequen- cies that you want to know the phase noise for.
Page 18: Sweep Result List
® Measurements and Result Displays R&S FSW-K40 Power Shows the power level of the spur in dBc. Jitter Shows the jitter value of the spur in s. In addition to the jitter for each spur, the result display also shows the Dis- crete Jitter and the Random Jitter at the end of the table.
Page 19: Spectrum Monitor
® Measurements and Result Displays R&S FSW-K40 Max Drift Shows the highest difference to the initial (nominal) frequency that was measured in the half decade. Level Drift Shows the difference to the initial (nominal) level that was measured in the half decade.
Page 20: Frequency Drift
® Measurements and Result Displays R&S FSW-K40 ● The blue trace ("track trace") equalizes frequency drifting signals and thus shows a stable version of the signal with the intended center frequency. If necessary, you can turn the traces on and off. For more information see "Spectrum...
Page 21: Frequency And Level Stability
® Measurements and Result Displays R&S FSW-K40 Frequency and Level Stability The stability results show the current level and frequency drift characteristics of the carrier signal compared to the initial frequency and level. In addition to the numerical results, the result display also contains a graphical represenation of the drift character- istics.
Page 22: Measurement Basics
® Measurement Basics R&S FSW-K40 Spurs and Spur Removal 4 Measurement Basics The measurement basics contain background information on the terminology and prin- ciples of phase noise measurements. Phase noise measurements in general determine the single sideband phase noise characteristics of a device under test (DUT).
Page 23: Residual Effects
® Measurement Basics R&S FSW-K40 Residual Effects Spur threshold During the second stage, the application uses statistical methods to remove a spur. A spur is detected, if the level of the signal is above a certain threshold. The spur thresh- old is relative to an imaginary median trace that the application calculates.
Page 24: Measurement Range
® Measurement Basics R&S FSW-K40 Measurement Range Residual FM The residual frequency modulation is the contribution of the phase noise to the output of an FM demodulator. It is evaluated over the frequency range you have defined. stop  ...
Page 25: Sweep Modes
® Measurement Basics R&S FSW-K40 Trace Averaging The measurement range again is divided into several (logarithmic) decades, or, for configuration purposes, into half decades. Figure 4-3: Measurement range and half decades This breakdown into several half decades is made to speed up measurements. You can configure each half decade separately in the "Half Decade Configuration Table".
Page 26 ® Measurement Basics R&S FSW-K40 Trace Averaging 1. Half decade averaging. The application measures each half decade a particular number of times before measuring the next one. 2. Cross-correlation The application performs a certain number of cross-correlation operations in each half decade.
Page 27: Frequency Determination
® Measurement Basics R&S FSW-K40 Frequency Determination Figure 4-4: Sample size included in trace smoothing The application smoothes the trace only after the measurement has been finished and the data has been analyzed and written to a trace. Thus, smoothing is really just an enhancement of the trace display, not of the data itself.
Page 28 ® Measurement Basics R&S FSW-K40 Frequency Determination Unverified signals The R&S FSW tries to start the measurement as soon as you enter the phase noise application. If it cannot verify a signal, it will try to start the measurement over and over.
Page 29 ® Measurement Basics R&S FSW-K40 Frequency Determination Frequency tracking When you are using the frequency tracking, the application tracks drifting frequencies of unstable DUTs. It internally adjusts and keeps a lock on the nominal frequency of the DUT. Figure 4-6: Frequency and level tracking...
Page 30: Level Determination
® Measurement Basics R&S FSW-K40 Signal Attenuation 4.7 Level Determination Nominal level The nominal level in other terms is the reference level of the R&S FSW. This is the level that the analyzer expects at the RF input. The available level range depends on the hardware. For more information see the datasheet of the R&S FSW.
Page 31: Using Limit Lines
® Measurement Basics R&S FSW-K40 Using Limit Lines Because the reference level and attenuation are interdependent, changing the attenua- tion manually may also adjust the reference level. RF attenuation RF attenuation is always available. It is a combination of mechanical and IF attenua- tion.
Page 32 ® Measurement Basics R&S FSW-K40 Using Limit Lines The application supports the definition of up to five ranges, each with a different slope. The ranges themselves are defined by corner frequencies. Corner frequencies are those frequencies that mark the boundaries of typical curve slopes. If you use all five ranges, the result would be a limit line with six segments.
Page 33: Analyzing Several Traces - Trace Mode
® Measurement Basics R&S FSW-K40 Analyzing Several Traces - Trace Mode Figure 4-9: Possible looks of a normal limit line 4.10 Analyzing Several Traces - Trace Mode If several sweeps are performed one after the other, or continuous sweeps are per- formed, the trace mode determines how the data for subsequent traces is processed.
Page 34 ® Measurement Basics R&S FSW-K40 Analyzing Several Traces - Trace Mode If a trace is frozen ("View" mode), the instrument settings, apart from level range and reference level, can be changed without impact on the displayed trace. The fact that the displayed trace no longer matches the current instrument setting is indicated by the icon on the tab label.
Page 35: Using Markers
® Measurement Basics R&S FSW-K40 Using Markers   Trace MeasValue  Trace where N is the sweep count 4.11 Using Markers Markers are used to mark points on traces, to read out measurement results and to select a display section quickly. The application provides 4 markers.
Page 36: Configuration
® Configuration R&S FSW-K40 Configuration Overview 5 Configuration Access: MODE > "Phase Noise" When you activate a measurement channel in the Phase Noise application, a mea- surement for the input signal is started automatically with the default configuration. The "Phase Noise" menu is displayed and provides access to the most important configura- tion functions.
Page 37: Default Settings For Phase Noise Measurements
® Configuration R&S FSW-K40 Default Settings for Phase Noise Measurements In addition to the main measurement settings, the "Overview" provides quick access to the main settings dialog boxes. The individual configuration steps are displayed in the order of the data flow. Thus, you can easily configure an entire measurement channel from input over processing to output and analysis by stepping through the dialog boxes as indicated in the "Overview".
Page 38: Configuring The Frontend
® Configuration R&S FSW-K40 Configuring the Frontend ● input coupling After initial setup, the parameters for the measurement channel are stored upon exiting and restored upon re-entering the channel. Thus, you can switch between applications quickly and easily. Apart from these settings, the following default settings are activated directly after a...
Page 39 ® Configuration R&S FSW-K40 Configuring the Frontend Nominal Frequency....................... 39 Nominal Level....................... 39 Mechanical Attenuator / Value..................39 Coupling........................39 Preamplifier ........................39 Nominal Frequency Defines the nominal frequency of the measurement. For more information see Chapter 4.6, "Frequency Determination", on page 27.
Page 40: Controlling The Measurement
® Configuration R&S FSW-K40 Controlling the Measurement "30 dB" The RF input signal is amplified by about 30 dB. Remote command: on page 94 INPut:GAIN:STATe on page 94 INPut:GAIN[:VALue] 5.4 Controlling the Measurement Access: "Overview" > "Measurement Control" The "Control" tab of the "Measurement Settings" dialog box contains all funtions nec- essary to control the sequence of the phase noise measurement.
Page 41 ® Configuration R&S FSW-K40 Controlling the Measurement Absolute tolerance: on page 95 [SENSe:]FREQuency:VERify:TOLerance:ABSolute Verify Level Turns level verification on and off. If level verification is on, the R&S FSW initiates the phase noise measurement only if the level of the DUT is within a certain level tolerance range. The tolerance range is a level range relative to the nominal level.
Page 42 ® Configuration R&S FSW-K40 Controlling the Measurement AM Rejection Turns the suppression of AM noise on and off. If on, the application suppresses the AM noise that the signal contains in order to dis- play phase noise as pure as possible.
Page 43: Configuring The Measurement Range
® Configuration R&S FSW-K40 Configuring the Measurement Range This mode is useful to measure the phase noise at small offset frequencies, because the small bandwidths required to measure these offset frequencies usually lead to long measurement times (and especially when you apply averaging).
Page 44 ® Configuration R&S FSW-K40 Configuring the Measurement Range Range Start / Stop Defines the frequency offsets that make up the measurement range. Note that the maximum offset you can select depends on the hardware you are using. If a " Preamplifier "...
Page 45 ® Configuration R&S FSW-K40 Configuring the Measurement Range You can also change the global bandwidth with the "RBW Global" softkey in the "Band- width" menu. Remote command: on page 100 [SENSe:]LIST:BWIDth[:RESolution]:RATio Global Average Count Defines the number of measurements that the application uses to calculate averaged results in each half decade.
Page 46: Performing Measurements
® Configuration R&S FSW-K40 Performing Measurements "Blackman Blackman Harris window. Harris" Chebychev window. "Chebychev" "Gaussian" Gaussian window. "Rectangular" Rectangular window. Remote command: on page 102 [SENSe]:LIST:IQWindow:TYPE Half Decades Configuration Table Contains all functionality to configure the phase noise measurement range.
Page 47 ® Configuration R&S FSW-K40 Performing Measurements Functions to configure the sweep described elsewhere: ● "Multiplier" on page 45 ● "Global Average Count" on page 45 Continuous Sweep /RUN CONT................... 47 Single Sweep / Run Single ...................47 Continue Single Sweep ....................47 Sweep/Average Count ....................
Page 48: Configuring In- And Outputs
5.7.1 Input Source Configuration Access: "Overview" > "Input / Frontend" > "Input Source Config" The "Radio Frequency" dialog box contains functionality to configure the input source. Note that the "Radio Frequency (On Off)" button is unavailable in the R&S FSW-K40 Coupling........................48 Input Connector......................49...
Page 49: Automatic Measurement Configuration
® Configuration R&S FSW-K40 Automatic Measurement Configuration Input Connector Selects the input source. The Phase Noise application supports the following input sources: ● RF Input ● Analog Baseband Input The "Baseband Input I" requires option R&S FSW-B71. Remote command: on page 145 INPut:CONNector 5.8 Automatic Measurement Configuration...
Page 50 ® Configuration R&S FSW-K40 Automatic Measurement Configuration To determine the required reference level, a level measurement is performed on the R&S FSW. If necessary, you can optimize the reference level further. Decrease the attenuation level manually to the lowest possible value before an overload occurs, then decrease the reference level in the same way.
Page 51: Analysis
® Analysis R&S FSW-K40 Configuring Graphical Result Displays 6 Analysis The application provides various means and methods to analyze and evaluate mea- surement results. ● Configuring Graphical Result Displays..............51 ● Configure Numerical Result Displays..............56 ● Using Limit Lines.....................58 ● Using Markers......................
Page 52 ® Analysis R&S FSW-K40 Configuring Graphical Result Displays Remote command: on page 120 DISPlay[:WINDow]:TRACe:X[:SCALe]:SCOPe X-Axis Start / Stop Defines the start and stop frequency of the horizontal axis. Note that the displayed frequency range is a detail of the measurement range. Regard- less of the displayed frequency range, the application still performs all measurement over the measurement range you have defined.
Page 53: Trace Offset
® Analysis R&S FSW-K40 Configuring Graphical Result Displays Remote command: Top: on page 122 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel Range: on page 121 DISPlay[:WINDow]:TRACe:Y:[:SCALe] Bottom: on page 122 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel:LOWer Auto Scale Once Automatically scales the vertical axis for ideal viewing. 6.1.2 Configuring Traces Trace Offset........................
Page 54: Trace Config
® Analysis R&S FSW-K40 Configuring Graphical Result Displays "Median" Smoothes the trace based on the median value of the sample. Remote command: on page 119 DISPlay[:WINDow]:TRACe<t>:SMOothing:TYPE Trace Config Opens a dialog box to configure traces. The application supports up to 6 traces with a different setup. In the diagram each trace has a different color.
Page 55: Trace Export
® Analysis R&S FSW-K40 Configuring Graphical Result Displays Preset All Traces Resets all traces to their default mode. Trace 1 - 2 mode = Clear Write; Trace 3 - 6 mode = Blank Trace 1 smoothing = On, Trace 2 - 6 smoothing = Off...
Page 56: Configure Numerical Result Displays
® Analysis R&S FSW-K40 Configure Numerical Result Displays Remote command: on page 125 TRACe<n>:COPY Trace Math ← Trace Config The "Trace Math" tab contains functionality to control trace mathematics. "State" Turns trace mathematics on and off. "Expression" Selects the mathematical operation.
Page 57 ® Analysis R&S FSW-K40 Configure Numerical Result Displays 6.2.1 Configuring Residual Noise Measurements Meas Range........................57 User Range........................57 Meas Range Turns the integration of the entire measurement range for residual noise calculations on and off. The range defined here is applied to all traces.
Page 58: Using Limit Lines
® Analysis R&S FSW-K40 Using Limit Lines Remote command: Selecting a trace: on page 128 CALCulate<n>:EVALuation:USER<range>:TRACe Define start frequency of user range: on page 127 CALCulate<n>:EVALuation:USER<range>:STARt Define stop frequency of user range: on page 128 CALCulate<n>:EVALuation:USER<range>:STOP 6.2.2 Configuring Spot Noise Measurements On All Decade Edges....................58...
Page 59 ® Analysis R&S FSW-K40 Using Limit Lines 6.3.1 Using Phase Noise Limit Lines Phase Noise Limit Line....................59 Selected Traces......................59 Noise Floor........................59 Range x - Range y......................59 Copy to User Limit Line....................60 Phase Noise Limit Line Selects the shape of the phase noise limit line.
Page 60 ® Analysis R&S FSW-K40 Using Limit Lines For more information see Chapter 4.9, "Using Limit Lines", on page 31. Remote command: Corner frequencies: on page 106 CALCulate:PNLimit:FC5 Slope: on page 108 CALCulate:PNLimit:SLOPe<segment> Copy to User Limit Line Creates a new user limit line from the data of a phase noise limit line.
Page 61 ® Analysis R&S FSW-K40 Using Limit Lines Name ← Select Limit Line Shows the name of the limit line. Unit ← Select Limit Line Shows the unit of the limit line. Compatible ← Select Limit Line Shows if the limit line is compatible to the current measurement setup or not.
Page 62 ® Analysis R&S FSW-K40 Using Limit Lines Comment ← Select Limit Line Shows the comment of the selected limit line. If the limit line has no comment, this field stays empty. View Filter ← Select Limit Line Turns filter for the list of limit lines on and off.
Page 63 ® Analysis R&S FSW-K40 Using Limit Lines └ Delete Value....................64 └ Shift X......................64 └ Shift Y......................64 └ Save........................64 Edit Limit Line The "Edit Limit Line" dialog box contains functionality to describe the shape of a limit line.
Page 64 ® Analysis R&S FSW-K40 Using Limit Lines Remote command: Type of values: on page 114 CALCulate<n>:LIMit<k>:LOWer:MODE on page 115 CALCulate<n>:LIMit<k>:UPPer:MODE Y-Axis ← Edit Limit Line Defines the characteristics of the vertical axis. The characteristics consist of the unit, the type of values and the usage of the line.
Page 65: Using Markers
® Analysis R&S FSW-K40 Using Markers 6.4 Using Markers Access (marker position): MKR > "Marker Config" > "Markers" Access (marker settings): MKR > "Marker Config" > "Marker Settings" The "Marker Configuration" dialog box and the "Marker" menu contain all functionality necessary to control markers.
Page 66 ® Analysis R&S FSW-K40 Using Markers Marker Type Toggles the marker type. The type for marker 1 is always "Normal" , the type for delta marker 1 is always "Delta " . These types cannot be changed. Note: If normal marker 1 is the active marker, switching the "Mkr Type" activates an additional delta marker 1.
Page 67 ® Analysis R&S FSW-K40 Using Markers Marker Table Display Defines how the marker information is displayed. "On" Displays the marker information in a table in a separate area beneath the diagram. "Off" Displays the marker information within the diagram area. No separate marker table is displayed.
Page 68: How To Configure Phase Noise Measurements
1. In the Spectrum application, define the center frequency of the DUT. 2. Enter the "Phase Noise" application. The R&S FSW-K40 starts the measurement with the default configuration. The default configuration defines most settings automatically. If you need any custom configuration, define them after entering the Phase Noise application.
Page 69 ® How to Configure Phase Noise Measurements R&S FSW-K40 Customizing the Measurement Range 3. Select the "Sweep Type". a) Select sweep types "Fast", "Normal" or "Averaged" for automatic measurement configuration. For a custom configuration, proceed to set up each measurement parameter sepa- rately.
Page 70: Remote Control Commands For Phase Noise Measurements
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Common Suffixes 8 Remote Control Commands for Phase Noise Measurements The following remote control commands are required to configure and perform phase noise measurements in a remote environment. The R&S FSW must already be set up for remote operation in a network as described in the base unit manual.
Page 71: Introduction
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Introduction Table 8-1: Common suffixes used in remote commands in the R&S FSW Phase Noise Measurement application Suffix Value range Description <m> 1 to 16 Marker <n> 1 to 16 Window (in the currently selected measurement channel) <t>...
Page 72 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Introduction Parameters required only to refine a query are indicated as Query parameters. Parameters that are only returned as the result of a query are indicated as Return values. ●...
Page 73 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Introduction 8.2.4 Optional Keywords Some keywords are optional and are only part of the syntax because of SCPI compli- ance. You can include them in the header or not. Note that if an optional keyword has a numeric suffix and you need to use the suffix, you have to include the optional keyword.
Page 74 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Introduction 8.2.6.1 Numeric Values Numeric values can be entered in any form, i.e. with sign, decimal point or exponent. In case of physical quantities, you can also add the unit. If the unit is missing, the com- mand uses the basic unit.
Page 75 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Introduction Querying Boolean parameters When you query Boolean parameters, the system returns either the value 1 ("ON") or the value 0 ("OFF"). Example: Setting: DISPlay:WINDow:ZOOM:STATe ON Query: DISPlay:WINDow:ZOOM:STATe? would return 1 8.2.6.3...
Page 76: Controlling The Phase Noise Measurement Channel
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Controlling the Phase Noise Measurement Channel 8.3 Controlling the Phase Noise Measurement Channel The following commands are necessary to control the measurement channel..................76 INSTrument:CREate:DUPLicate ....................76 INSTrument:CREate[:NEW] ..................77 INSTrument:CREate:REPLace ......................
Page 77 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Controlling the Phase Noise Measurement Channel INSTrument:CREate:REPLace <ChannelName1>,<ChannelType>,<ChannelName2> This command replaces a measurement channel with another one. Setting parameters: <ChannelName1> String containing the name of the measurement channel you want to replace.
Page 78 I/Q Analyzer IQ Analyzer LTE (R&S FSW-K10x) Multi-Carrier Group Delay (R&S FSW-K17) MCGD MC Group Delay Noise (R&S FSW-K30) NOISE Noise Phase Noise (R&S FSW-K40) PNOISE Phase Noise Pulse (R&S FSW-K6) PULSE Pulse Real-Time Spectrum (R&S FSW-B160R/- RTIM Real-Time Spectrum K160RE) Spurious Measurements (R&S FSW-K50)
Page 79 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Controlling the Phase Noise Measurement Channel Application <ChannelType> Default Channel Name*) Parameter VSA (R&S FSW-K70) DDEM WLAN (R&S FSW-K91) WLAN WLAN *) the default channel name is also listed in the table. If the specified name for a new channel already exists, the default name, extended by a sequential number, is used for the new channel.
Page 80: Performing Measurements
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Performing Measurements 8.4 Performing Measurements The following commands are necessary to perform measurements. You can also perform a sequence of measurements using the Sequencer (see "Multi- ple Measurement Channels and Sequencer Function"...
Page 81 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Performing Measurements Example: ABOR;*WAI INIT:IMM Aborts the current measurement and starts a new one once abortion has been completed. Usage: Event CONFigure:REFMeas ONCE This command initiates a reference measurement that determines the inherent phase noise of the R&S FSW.
Page 82 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Performing Measurements Parameters: <State> ON | OFF | 0 | 1 ON | 1 Continuous sweep OFF | 0 Single sweep *RST: Example: INIT:CONT OFF Switches the sweep mode to single sweep.
Page 83 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Performing Measurements Before this command can be executed, the Sequencer must be activated (see on page 85). SYSTem:SEQuencer Suffix: <n> irrelevant Example: SYST:SEQ ON Activates the Sequencer. INIT:SEQ:MODE SING Sets single sequence mode so each active measurement will be performed once.
Page 84 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Performing Measurements Example: SYST:SEQ ON Activates the Sequencer. INIT:SEQ:MODE SING Sets single sequence mode so each active measurement will be performed once. INIT:SEQ:IMM Starts the sequential measurements. [SENSe:]SWEep:COUNt <SweepCount> This command defines the number of sweeps that the application uses to average traces.
Page 85: Configuring The Result Display
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Result Display SYSTem:SEQuencer <State> This command turns the Sequencer on and off. The Sequencer must be active before any other Sequencer commands (INIT:SEQ...) are executed, otherwise an error will occur.
Page 86 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Result Display Parameters: <Format> SPLit Displays the MultiView tab with an overview of all active chan- nels SINGle Displays the measurement channel that was previously focused. *RST: SING...
Page 87 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Result Display LAYout:ADD[:WINDow]? <WindowName>,<Direction>,<WindowType> This command adds a window to the display in the active measurement channel. This command is always used as a query so that you immediately obtain the name of the new window as a result.
Page 88 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Result Display LAYout:CATalog[:WINDow]? This command queries the name and index of all active windows in the active mea- surement channel from top left to bottom right. The result is a comma-separated list of values for each window, with the syntax: <WindowName_1>,<WindowIndex_1>..<WindowName_n>,<WindowIndex_n>...
Page 89 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Result Display Usage: Event LAYout:REPLace[:WINDow] <WindowName>,<WindowType> This command replaces the window type (for example from "Diagram" to "Result Sum- mary") of an already existing window in the active measurement channel while keeping its position, index and window name.
Page 90 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Result Display Figure 8-1: SmartGrid coordinates for remote control of the splitters Parameters: <Index1> The index of one window the splitter controls. <Index2> The index of a window on the other side of the splitter.
Page 91 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Result Display LAYout:WINDow<n>:ADD? <Direction>,<WindowType> This command adds a measurement window to the display. Note that with this com- mand, the suffix <n> determines the existing window next to which the new window is added, as opposed to LAYout:ADD[:WINDow]?, for which the existing window is defined by a parameter.
Page 92: Configuring The Frontend
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Frontend LAYout:WINDow<n>:REMove This command removes the window specified by the suffix <n> from the display in the active measurement channel. The result of this command is identical to the command.
Page 93 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Frontend Parameters: <Frequency> Range: 0 to fmax *RST: fmax/2 Default unit: Hz is specified in the data sheet. min span is 10 Hz Example: FREQ:CENT 100 MHz Defines a nominal frequency of 100 MHz.
Page 94 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Frontend Parameters: <State> ON | OFF | 0 | 1 *RST: Example: INP:ATT:AUTO ON Couples the attenuation to the reference level. Manual operation: "Mechanical Attenuator / Value" on page 39 INPut:COUPling <CouplingType>...
Page 95: Controlling The Measurement
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Controlling the Measurement Parameters: <Gain> 15 dB | 30 dB The availability of gain levels depends on the model of the R&S FSW. R&S FSW8/13: 15dB and 30 dB R&S FSW26 or higher: 30 dB All other values are rounded to the nearest of these two.
Page 96 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Controlling the Measurement If you define both an absolute and relative tolerance, the application uses the higher tolerance level. Parameters: <Frequency> Numeric value in Hz. *RST: 1 kHz Example: FREQ:VER:TOL:ABS 100kHz Defines a frequency tolerance range of 100 kHz.
Page 97 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Controlling the Measurement Example: IQ:DEC ON Turns on decimation. Manual operation: "Decimation" on page 42 [SENSe:]IQ:DPLL <State> This command turns the digital PLL on and off. Parameters: <State> ON | OFF | 1 | 0...
Page 98 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Controlling the Measurement Example: IQ:TBW 100HZ Defines a tracking bandwidth of 100 Hz. Manual operation: "Max Freq Drift" on page 42 [SENSe:]POWer:RLEVel:VERify:TOLerance <Level> This command defines a relative level tolerance for level verification Parameters: <Level>...
Page 99: Configuring The Measurement Range
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Measurement Range Manual operation: "AM Rejection" on page 42 [SENSe:]SWEep:SVFailed <State> This command turns repeated tries to start the measurement if signal verification fails on and off. Parameters: <State>...
Page 100 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Measurement Range Suffix Half Decade 100 MHz ... 300 MHz 300 MHz ... 1 GHz 1 GHz ... 3 GHz 3 GHz ... 10 GHz ............... 100 [SENSe:]LIST:BWIDth[:RESolution]:RATio ..............
Page 101 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Measurement Range Parameters: <Mode> Measurement based on I/Q data. NORMal Measurement based on spectrum analyzer data. Measurement based on spectrum analyzer data. Kept for com- patibility to R&S FSV.
Page 102 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Measurement Range Parameters: <Mode> IQFFt Measurement based on I/Q data. NORMal Measurement based on spectrum analyzer data. Measurement based on spectrum analyzer data. Kept for com- patibility to R&S FSV.
Page 103 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Measurement Range Example: LIST:RANG9:BWID 100Hz Selects a RBW of 100 Hz for the half decade from 1 kHz to 3 kHz. Manual operation: "Half Decades Configuration Table" on page 46 [SENSe:]LIST:RANGe<range>:FILTer:TYPE <Mode>...
Page 104 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Measurement Range Manual operation: "Half Decades Configuration Table" on page 46 [SENSe:]LIST:RANGe<range>:SWEep:COUNt <Measurements> This command defines the number of measurements included in the averaging for a half decade.
Page 105 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring the Measurement Range [SENSe:]LIST:SWEep:COUNt:MULTiplier:STATe <State> This command turns a multiplier that is applied to the average count in each half dec- ade on and off. Parameters: <State> ON | OFF | 1 | 0...
Page 106: Using Limit Lines
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Limit Lines 8.9 Using Limit Lines The following commands are necessary to set up and configure limit lines. ● Using Phase Noise Limit Lines................106 ● Using Standard Limit Lines...................
Page 107 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Limit Lines CALCulate:PNLimit:FC3 is available for special phase noise limit lines with three seg- ment or more. CALCulate:PNLimit:FC4 is available for special phase noise limit lines with four seg- ment or more.
Page 108 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Limit Lines Parameters: <Shape> Limit line defined by the noise floor and 1 corner frequency. Limit line defined by the noise floor and 2 corner frequencies. Limit line defined by the noise floor and 3 corner frequencies.
Page 109 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Limit Lines Manual operation: "Range x - Range y" on page 59 8.9.2 Using Standard Limit Lines ..................109 CALCulate<n>:LIMit<k>:ACTive? ..............109 CALCulate<n>:LIMit<k>:CLEar[:IMMediate] ..................109 CALCulate<n>:LIMit<k>:COPY ..................110 CALCulate<n>:LIMit<k>:DELete ..................110 CALCulate<n>:LIMit<k>:FAIL?
Page 110 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Limit Lines <k> Limit line Parameters: <Line> 1 to 8 number of the new limit line <name> String containing the name of the limit line. Example: CALC:LIM1:COPY 2 Copies limit line 1 to line 2.
Page 111 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Limit Lines Manual operation: "Check Traces" on page 61 CALCulate<n>:LIMit<k>:NAME <Name> This command selects a limit line that already exists or defines a name for a new limit line.
Page 112 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Limit Lines Parameters: <State> ON | OFF | 1 | 0 *RST: Example: CALC:LIM:STAT ON Switches on the limit check for limit line 1. Manual operation: "Check Traces" on page 61 CALCulate<n>:LIMit<k>:TRACe <TraceNumber>...
Page 113 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Limit Lines CALCulate<n>:LIMit<k>:UPPer:STATe <State> This command turns an upper limit line on and off. Before you can use the command, you have to select a limit line with CALCulate<n>: on page 111.
Page 114 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Limit Lines Parameters: <LimitLinePoints> Variable number of x-axis values. Note that the number of horizontal values has to be the same as the number of vertical values set with CALCulate<n>:...
Page 115 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Limit Lines Suffix: <n> Window <k> Limit line Parameters: <Mode> ABSolute Limit line is defined by absolute physical values. The unit is variable. RELative Limit line is defined by relative values related to the reference level (dB).
Page 116: Graphical Display Of Phase Noise Results
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Graphical Display of Phase Noise Results CALCulate<n>:LIMit<k>:UPPer[:DATA] <LimitLinePoints> This command defines the vertical definition points of an upper limit line. Suffix: <n> irrelevant <k> Limit line Parameters: <LimitLinePoints> Variable number of level values.
Page 117 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Graphical Display of Phase Noise Results ..............121 DISPlay[:WINDow]:TRACe:X[:SCALe]:STOP ................121 DISPlay[:WINDow]:TRACe:Y:[:SCALe] ..............121 DISPlay[:WINDow]:TRACe:Y[:SCALe]:AUTO ..............122 DISPlay[:WINDow]:TRACe:Y[:SCALe]:MANual ..............122 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel ............122 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel:LOWer ............. 123 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel:OFFSet ..................123 FORMat:DEXPort:DSEParator ....................123 FORMat:DEXPort:HEADer ..................... 123 FORMat:DEXPort:TRACes ..................124...
Page 118 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Graphical Display of Phase Noise Results Manual operation: "Trace Math" on page 56 DISPlay[:WINDow]:TRACe<t>:MODE <Mode> This command selects the trace mode. Suffix: <t> Trace Parameters: <Mode> WRITe | VIEW | AVERage | MAXHold | MINHold | BLANk...
Page 119 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Graphical Display of Phase Noise Results Parameters: <State> ON | OFF | 1 | 0 *RST: Example: DISP:TRAC2:SMO ON Turns on trace smoothing for trace 2. Manual operation: "Traces" on page 54 DISPlay[:WINDow]:TRACe<t>:SMOothing:TYPE <Type>...
Page 120 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Graphical Display of Phase Noise Results Parameters: <HalfDecade> Start offset frequency of the half decade you want to display. Note that the half decade you want to display has to be part of the current measurement range.
Page 121 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Graphical Display of Phase Noise Results DISPlay[:WINDow]:TRACe:X[:SCALe]:STOP <StopFrequency> This command selects the stop frequency of the display range. Before you can use the command you have to select a manual display range for the x- axis with DISPlay[:WINDow]:TRACe:X[:SCALe]:SCOPe.
Page 122 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Graphical Display of Phase Noise Results DISPlay[:WINDow]:TRACe:Y[:SCALe]:MANual <Mode> This command selects the type of manual scaling of the vertical axis. Parameters: <Mode> BRANge Scaling based on the value at the bottom of the diagram and the axis range.
Page 123 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Graphical Display of Phase Noise Results Manual operation: "Top / Range / Bottom" on page 52 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel:OFFSet <Offset> This command defines the trace offset. Parameters: <Offset> Range: -200 to 200...
Page 124 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Graphical Display of Phase Noise Results Parameters: <Selection> SINGle Only a single trace is selected for export, namely the one speci- fied by the command. MMEMory:STORe<n>:TRACe Selects all active traces and result tables (e.g. Result Summary, marker peak list etc.) in the current application for export to an...
Page 125 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Graphical Display of Phase Noise Results Manual operation: "Spur Removal / Spur Threshold" on page 56 [SENSe:]SPURs:THReshold <Threshold> This command defines the level threshold for spur removal. Parameters: <Threshold> Range:...
Page 126: Configure Numerical Result Displays
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays <Time>, <Frequency>Frequency drift: Coordinates of the frequency drift trace as a list of comma sepa- rated values, beginning at the left border of the display. <Time1>,<Frequency1>,<Time2>,<Frequency2>,...
Page 127: Calculate:Evaluation[:State]
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays Manual operation: "Meas Range" on page 57 CALCulate<n>:EVALuation[:STATe] <State> This command turn integration of the measurement range for residual noise calculation on and off. Suffix: <n>...
Page 128: Calculate:Evaluation:user:Stop
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays Parameters: <OffsetFrequency> The minimum offset is 1 Hz. The maximum offset depends on the hardware you are using. *RST: 1 MHz Example: CALC:EVAL:USER2:STAR 1khz Defines a start point of 1 kHz for the second user range.
Page 129: Reading Out Residual Noise Results
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays 8.11.2 Reading Out Residual Noise Results ......................129 FETCh:PNOise:IPN? ....................129 FETCh:PNOise<t>:RFM? ....................129 FETCh:PNOise<t>:RMS? ....................129 FETCh:PNOise<t>:RPM? ................130 FETCh:PNOise<t>:USER<range>:IPN? ................130 FETCh:PNOise<t>:USER<range>:RFM? ................. 130 FETCh:PNOise<t>:USER<range>:RMS? ................. 131 FETCh:PNOise<t>:USER<range>:RPM?
Page 130 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays Suffix: <t> Trace Example: FETC:PNO:RPM? Queries the residual PM for the first trace of the diagram. Usage: Query only Manual operation: "Residual Noise" on page 15 FETCh:PNOise<t>:USER<range>:IPN?
Page 131: Configuring Spot Noise Measurements
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays Suffix: <t> Trace <range> 1...3 Selects the user range. FETC:PNO:USER2:RMS? Example: Queries the RMS jitter for user range 2. Usage: Query only Manual operation: "Residual Noise"...
Page 132 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays Manual operation: "On User Defined Offsets / Offset Frequency" on page 58 CALCulate<n>:SNOise:DECades[:STATe] <State> This command turns the spot noise calculation on every 10 offset frequency on and off.
Page 133 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays Return values: <Level> List of level values, one for each 10 spot noise marker. The number of return values depends on the measurement range. Default unit: dBc/Hz...
Page 134: Reading Out The Spur List
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays Example: CALC:SNO3:X 2MHz Positions the third custom spot noise marker to an offset fre- quency of 2 MHz. Manual operation: "On User Defined Offsets / Offset Frequency"...
Page 135: Reading Out Measured Values
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays FETCh:PNOise:SPURs? This command queries the location and level of all spurs that have been detected. Return values: <Spurs> Returns two values (frequency and level) for each each spur that has been detected.
Page 136: Reading Out The Sweep Result List
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays FETCh:PNOise:MEASured:FREQuency? This command queries the carrier frequency that has been actually measured. The measured frequency is shown in the channel bar. Return values: <Frequency> Frequency in Hz.
Page 137 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays Manual operation: "Sweep Result List" on page 18 FETCh:PNOise:SWEep:FDRift? This command queries the frequency drift in each half decade. Return values: <Frequency> Frequency drift as displayed in the Sweep Result List.
Page 138 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configure Numerical Result Displays Example: FETC:PNO:SWE:MDR? would return, e.g.: 2.17,11.45,105.11,219.37,553.48 Usage: Query only Manual operation: "Sweep Result List" on page 18 FETCh:PNOise:SWEep:SRATe? This command queries the sampling rate used in each half decade.
Page 139: Using Markers
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Markers Example: FETC:PNO:SWE:STOP? would return, e.g.: 3000,10000,30000,100000,300000 Usage: Query only Manual operation: "Sweep Result List" on page 18 8.12 Using Markers The following commands are necessary to control markers.
Page 140: Calculate:Marker:Trace
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Markers Parameters: <State> ON | OFF | 1 | 0 *RST: Example: CALC:MARK3 ON Switches on marker 3. Manual operation: "Marker 1 ... Marker x" on page 65 " Marker Type "...
Page 141: Using Delta Markers
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Markers CALCulate<n>:MARKer<m>:Y? This command queries the position of a marker on the y-axis. If necessary, the command activates the marker first. To get a valid result, you have to perform a complete measurement with synchroniza- tion to the end of the measurement before reading out the result.
Page 142 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Markers CALCulate<n>:DELTamarker<m>:MREFerence <Reference> This command selects a reference marker for a delta marker other than marker 1. The reference may be another marker or the fixed reference. Suffix: <n>...
Page 143 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Markers <m> Marker Parameters: <Trace> Trace number the marker is assigned to. Example: CALC:DELT2:TRAC 2 Positions delta marker 2 on trace 2. CALCulate<n>:DELTamarker<m>:X <Position> This command moves a delta marker to a particular coordinate on the x-axis.
Page 144: Configuring Markers
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using Markers Example: INIT:CONT OFF Switches to single sweep mode. INIT;*WAI Starts a sweep and waits for its end. CALC:DELT2 ON Switches on delta marker 2. CALC:DELT2:Y? Outputs measurement value of delta marker 2.
Page 145: Configuring In- And Outputs
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Configuring In- and Outputs 8.12.4 Using the Marker Zoom ................145 CALCulate:MARKer:FUNCtion:ZOOM ..................145 DISPlay[:WINDow:]ZOOM[:STATe] CALCulate:MARKer:FUNCtion:ZOOM <ZoomFactor> This command defines the factor or magnitude of the marker zoom. Parameters: <ZoomFactor> Range: 1 to 20...
Page 146: Automatic Measurement Configuration
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Automatic Measurement Configuration Example: INP:CONN:AIQI Selects input from the analog baseband I connector. Manual operation: "Input Connector" on page 49 8.14 Automatic Measurement Configuration The following commands are necessary to determine measurement parameters auto- matically.
Page 147: Using The Status Register
You can query the status register and error queue via IEC bus. The R&S FSW-K40 features several status registers that are specific to phase noise measurements. Here is a description of those, including the corresponding remote commands.
Page 148 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using the Status Register not used not used not used & logic AND logic OR of all bits one register for each channel Phase Noise Limit FAIL LIMit 8 FAIL...
Page 149 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using the Status Register ● STATus:QUEStionable Register................149 ● STATus:QUEStionable:POWer Register.............. 149 ● STATus:QUEStionable:LIMit Register..............150 ● STATus:QUEStionable:PNOise Register..............150 ● Status Register Remote Commands..............151 8.15.1.1 STATus:QUEStionable Register The STATus:QUEStionable register contains information about indefinite states which may occur if the unit is operated without meeting the specifications.
Page 150 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using the Status Register 8.15.1.3 STATus:QUEStionable:LIMit Register The STATus:QUEStionable:LIMit register contains information about limit lines and the results of a limit checks. The number of LIMit registers depends on the number of measurement windows avail- able in any application.
Page 151 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using the Status Register Bit no Meaning 3 to 14 Unavailable for phase noise measurements. This bit is always 0. 8.15.1.5 Status Register Remote Commands ..................151 STATus:OPERation[:EVENt]? ..................151 STATus:QUEStionable[:EVENt]? ................
Page 152 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Using the Status Register STATus:OPERation:CONDition? STATus:QUEStionable:CONDition? STATus:QUEStionable:LIMit:CONDition? <ChannelName> STATus:QUEStionable:PNOise:CONDition? <ChannelName> STATus:QUEStionable:POWer:CONDition? <ChannelName> These commands read out the CONDition section of the status register. The commands do not delete the contents of the EVENt section.
Page 153: Remote Control Example Scripts
® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Remote Control Example Scripts <ChannelName> String containing the name of the channel. The parameter is optional. If you omit it, the command works for the currently active channel. STATus:OPERation:PTRansition <SumBit>,<ChannelName>...
Page 154 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Remote Control Example Scripts FREQ:STAR 100HZ FREQ:STOP 1MHZ //Select the sweep type. SWE:MODE AVER //Turn on frequency tracking. FREQ:TRAC ON //Turn on level tracking. POW:TRAC ON //Start the measurement with synchronization.
Page 155 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Remote Control Example Scripts //Measurement bandwidth (in per cent of the decade frequency): LIST:BWID:RAT 20 //Averages: LIST:SWE:COUN 20 //Mode: LIST:BWID:RES:TYPE IQFF //Window function: LIST:IQW:TYPE GAUS Customizing a half decade configuration table //Define the measurement range.
Page 156 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Remote Control Example Scripts Scaling the y-axis: scaling based on bottom value and range //Select manual y-axis scaling. DISP:TRAC:Y:MAN BRAN //Define the bottom value. DISP:TRAC:Y:RLEV:LOW -160 //Define the range. DISP:TRAC:Y 60 Scaling the y-axis: scaling based on top value and range //Select manual y-axis scaling.
Page 157 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Remote Control Example Scripts CALC:SNO1:X 50KHZ CALC:SNO2:STAT ON CALC:SNO2:X 500KHZ //Read out spot noise marker results. //Read out the decade edges: CALC:SNO:DEC:X? //Read out the marker positions on the decade edges:...
Page 158 ® Remote Control Commands for Phase Noise Measurements R&S FSW-K40 Remote Control Example Scripts //Select the trace to check. CALC:LIM:TRAC 3 //Turn on the limit check. CALC:LIM:STAT ON //Query the limit check results. CALC:LIM:FAIL? 8.16.6 Using Markers Using spot noise markers "Working with spot noise results"...
Page 159: List Of Remote Commands (Phase Noise)
® List of Remote Commands (Phase Noise) R&S FSW-K40 List of Remote Commands (Phase Noise) [SENSe:]ADJust:ALL............................. 146 [SENSe:]ADJust:FREQuency........................146 [SENSe:]ADJust:LEVel..........................146 [SENSe:]BANDwidth|BWIDth[:RESolution]:TYPE..................100 [SENSe:]FREQuency:CENTer.........................92 [SENSe:]FREQuency:STARt......................... 101 [SENSe:]FREQuency:STOP..........................101 [SENSe:]FREQuency:TRACk.......................... 95 [SENSe:]FREQuency:VERify:TOLerance:ABSolute..................95 [SENSe:]FREQuency:VERify:TOLerance:RELative..................96 [SENSe:]FREQuency:VERify[:STATe]......................96 [SENSe:]IQ:DECimation..........................96 [SENSe:]IQ:DPLL............................97 [SENSe:]IQ:ONLine............................97 [SENSe:]IQ:TBW............................. 97 [SENSe:]LIST:BWIDth:RESolution:TYPE......................101...
Page 160 ® List of Remote Commands (Phase Noise) R&S FSW-K40 CALCulate:PNLimit:SLOPe<segment>......................108 CALCulate:PNLimit:TRACe........................... 107 CALCulate:PNLimit:TYPE..........................107 CALCulate<n>:DELTamarker<m>:AOFF...................... 141 CALCulate<n>:DELTamarker<m>:MREFerence...................142 CALCulate<n>:DELTamarker<m>:TRACe....................142 CALCulate<n>:DELTamarker<m>:X......................143 CALCulate<n>:DELTamarker<m>:Y?......................143 CALCulate<n>:DELTamarker<m>[:STATe]....................142 CALCulate<n>:EVALuation:STARt........................126 CALCulate<n>:EVALuation:STOP.........................127 CALCulate<n>:EVALuation:USER<range>:STARt..................127 CALCulate<n>:EVALuation:USER<range>:STOP..................128 CALCulate<n>:EVALuation:USER<range>:TRACe..................128 CALCulate<n>:EVALuation[:STATe]......................127 CALCulate<n>:LIMit<k>:ACTive?........................109 CALCulate<n>:LIMit<k>:CLEar[:IMMediate]....................109 CALCulate<n>:LIMit<k>:COMMent....................... 113 CALCulate<n>:LIMit<k>:CONTrol:SHIFt....................... 114 CALCulate<n>:LIMit<k>:CONTrol[:DATA].....................113...
Page 161 ® List of Remote Commands (Phase Noise) R&S FSW-K40 DISPlay:FORMat............................. 85 DISPlay:MINFo[:STAT]..........................144 DISPlay:MTABle............................144 DISPlay[:WINDow:]ZOOM[:STATe].......................145 DISPlay[:WINDow]:TRACe:X[:SCALe]:HDECade..................119 DISPlay[:WINDow]:TRACe:X[:SCALe]:SCOPe..................... 120 DISPlay[:WINDow]:TRACe:X[:SCALe]:STARt....................120 DISPlay[:WINDow]:TRACe:X[:SCALe]:STOP....................121 DISPlay[:WINDow]:TRACe:Y:[:SCALe]......................121 DISPlay[:WINDow]:TRACe:Y[:SCALe]:AUTO....................121 DISPlay[:WINDow]:TRACe:Y[:SCALe]:MANual.................... 122 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel..................... 122 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel:LOWer.................122 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel:OFFSet................123 DISPlay[:WINDow]:TRACe<t>:MODE......................118 DISPlay[:WINDow]:TRACe<t>:SMOothing:APERture...................118 DISPlay[:WINDow]:TRACe<t>:SMOothing:TYPE..................119 DISPlay[:WINDow]:TRACe<t>:SMOothing[:STATe]..................118 DISPlay[:WINDow]:TRACe<t>:SPURs:SUPPress..................
Page 162 ® List of Remote Commands (Phase Noise) R&S FSW-K40 INPut:ATTenuation............................93 INPut:ATTenuation:AUTO..........................93 INPut:CONNector............................145 INPut:COUPling...............................94 INPut:GAIN:STATe............................94 INPut:GAIN[:VALue]............................94 INSTrument:CREate:DUPLicate........................76 INSTrument:CREate:REPLace........................77 INSTrument:CREate[:NEW]..........................76 INSTrument:DELete............................77 INSTrument:LIST?............................77 INSTrument:REName............................79 INSTrument[:SELect]............................79 LAYout:ADD[:WINDow]?..........................87 LAYout:CATalog[:WINDow]?...........................88 LAYout:IDENtify[:WINDow]?..........................88 LAYout:REMove[:WINDow]..........................88 LAYout:REPLace[:WINDow]..........................89 LAYout:SPLitter............................... 89 LAYout:WINDow<n>:ADD?..........................91 LAYout:WINDow<n>:IDENtify?........................91 LAYout:WINDow<n>:REMove.........................92 LAYout:WINDow<n>:REPLace........................92 MMEMory:STORe<n>:TRACe........................124...
Page 163 ® List of Remote Commands (Phase Noise) R&S FSW-K40 SYSTem:SEQuencer............................85 TRACe[:DATA]?.............................125 TRACe<n>:COPY............................125 User Manual 1173.9286.02 ─ 15...
Page 164: Index
® Index R&S FSW-K40 Index Abort measurement (remote control) ........ 80 Evaluation methods Aborting Remote ............... 87 Sweep ................. 47 Application cards ..............7 Application notes ..............7 FFT window ............... 45 Attenuation FFT window (remote control) ..........99 Mechanical ..............39 Format Mechanical (remote control) ........
Page 165 ® Index R&S FSW-K40 Limit lines (remote control) ..........106 Reference level Auto level ..............49 Reference marker ............. 66 Reference measurement ........... 81 Marker to Trace ..............66 Release notes ..............7 Marker zoom (remote control) ......... 145 Remote commands Markers ................
Page 166 ® Index R&S FSW-K40 Preamp ............... 39 Windows Single Sweep .............. 47 Adding (remote) ............87 "Sweep Count" ............47 Closing (remote) ........... 88, 92 Spot noise Layout (remote) ............89 10_x Hz ............... 58 Maximizing (remote) ........... 86 10_x Hz (remote control) .......... 126 Querying (remote) ............

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Rohde & Schwarz FSW-K40 User Manual

Table of Contents

1 Preface

2 Welcome to the Phase Noise Measurement Application

3 Measurements and Result Displays

4 Measurement Basics

5 Configuration

6.1.2 Configuring Traces

8 Remote Control Commands for Phase Noise Measurements

8.11 Configure Numerical Result Displays

8.12 Using Markers

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Chapters

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Summary of Contents for Rohde & Schwarz FSW-K40

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