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R&S®VSE-K149
HRP UWB Measurement Application
User Manual
(;ÝQ?2)
1179331502
Version 03
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This manual applies to the following software, version 2.20 and later:
●
R&S®VSE Enterprise Edition base software (1345.1105.06)
●
R&S®VSE Basic Edition base software (1345.1011.06)
The following firmware options are described:
●
R&S VSE-K149 (1345.1463.06)
●
R&S VSE-KT149 (1345.2082.02)
© 2022 Rohde & Schwarz GmbH & Co. KG
Muehldorfstr. 15, 81671 Muenchen, Germany
Phone: +49 89 41 29 - 0
Email: info@rohde-schwarz.com
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1179.3315.02 | Version 03 | R&S®VSE-K149
The following abbreviations are used throughout this manual: R&S®VSE is abbreviated as R&S VSE.
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1 Preface.................................................................................................... 7
1.1 About this manual.........................................................................................................7
1.2 Conventions used in the documentation....................................................................7
1.2.1 Typographical conventions..............................................................................................7
1.2.2 Conventions for procedure descriptions..........................................................................8
1.2.3 Notes on screenshots..................................................................................................... 8
2 Welcome to the HRP UWB application................................................ 9
2.1 Starting the HRP UWB application.............................................................................. 9
2.2 Understanding the display information.................................................................... 10
3 Measurements and result displays.................................................... 12
Contents
Contents
3.1 Evaluation methods for HRP UWB............................................................................ 12
4 Configuration........................................................................................22
4.1 Configuration overview.............................................................................................. 22
4.2 Input and frontend settings........................................................................................23
4.2.1 Input source settings..................................................................................................... 23
4.2.1.1 Radio frequency input................................................................................................... 23
4.2.1.2 I/Q file input................................................................................................................... 29
4.2.2 Frequency settings........................................................................................................31
4.2.3 Amplitude settings.........................................................................................................32
4.2.4 Scaling.......................................................................................................................... 36
4.3 Trigger settings........................................................................................................... 37
4.4 Data acquisition.......................................................................................................... 41
4.5 Burst/Sync................................................................................................................... 43
4.6 Demodulation.............................................................................................................. 44
4.7 Evaluation range......................................................................................................... 46
4.7.1 Analysis.........................................................................................................................47
4.7.2 Group Config.................................................................................................................48
4.8 Result configuration................................................................................................... 49
4.8.1 Result config................................................................................................................. 49
4.8.2 Result summary............................................................................................................ 50
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4.8.3 Packet insight................................................................................................................50
5 Analysis................................................................................................ 51
5.1 Configuring traces...................................................................................................... 51
5.1.1 Selecting the trace information......................................................................................51
5.1.2 Exporting traces............................................................................................................ 52
5.2 Using markers............................................................................................................. 54
5.2.1 Configuring markers......................................................................................................54
5.3 Evaluation modes....................................................................................................... 55
6 Remote commands for HRP UWB measurements............................56
6.1 Introduction................................................................................................................. 56
6.1.1 Conventions used in descriptions................................................................................. 57
6.1.2 Long and short form...................................................................................................... 57
Contents
6.1.3 Numeric suffixes............................................................................................................58
6.1.4 Optional keywords.........................................................................................................58
6.1.5 Alternative keywords..................................................................................................... 58
6.1.6 SCPI parameters...........................................................................................................59
6.1.6.1 Numeric values............................................................................................................. 59
6.1.6.2 Boolean......................................................................................................................... 60
6.1.6.3 Character data.............................................................................................................. 60
6.1.6.4 Character strings...........................................................................................................61
6.1.6.5 Block data..................................................................................................................... 61
6.2 Common suffixes........................................................................................................ 61
6.3 Activating HRP UWB measurements........................................................................ 61
6.4 Configuring the result display................................................................................... 62
6.4.1 Restoring the default configuration (Preset)..................................................................62
6.4.2 Layout configuration in R&S VSE-K149........................................................................62
6.5 Retrieving results........................................................................................................62
6.5.1 General......................................................................................................................... 62
6.5.2 Magnitude capture........................................................................................................ 63
6.5.3 Packet insights.............................................................................................................. 65
6.5.4 Result summary............................................................................................................ 66
6.6 Configuring the measurement................................................................................... 69
6.6.1 Input/output settings......................................................................................................69
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6.6.1.1 Configuring data input................................................................................................... 69
6.6.2 Frontend configuration................................................................................................ 106
6.6.2.1 Frequency................................................................................................................... 106
6.6.2.2 Amplitude settings.......................................................................................................108
6.6.2.3 Scaling.........................................................................................................................110
6.6.2.4 Configuring the attenuation......................................................................................... 113
6.6.3 Triggering measurements............................................................................................115
6.6.3.1 Configuring the triggering conditions...........................................................................115
6.6.3.2 Configuring the trigger output......................................................................................121
Contents
RF input.........................................................................................................................69
Using external mixers....................................................................................................81
Remote commands for external frontend control.......................................................... 89
Working with power sensors......................................................................................... 98
6.6.4 Configuring data aquisition..........................................................................................123
6.6.5 Configuring burst/sync................................................................................................ 125
6.6.6 Configuring demodulation........................................................................................... 127
6.6.7 Configuring evaluation range...................................................................................... 129
6.6.8 Configuring results...................................................................................................... 131
6.7 Configuring standard traces.................................................................................... 133
6.8 Working with markers...............................................................................................136
6.8.1 Using markers............................................................................................................. 136
6.8.2 Using delta markers.................................................................................................... 138
6.8.3 Configuring markers....................................................................................................140
6.8.4 Positioning markers.....................................................................................................141
6.8.5 Positioning delta markers............................................................................................143
List of Remote Commands (HRP UWB)........................................... 146
Index....................................................................................................154
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Contents
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1 Preface
1.1 About this manual
Preface
Conventions used in the documentation
This R&S VSE HRP UWB User Manual provides all the information specific to the
application. All general software functions and settings common to all applications
and operating modes are described in the R&S VSE Base Software User Manual.
The main focus in this manual is on the measurement results and the tasks required to
obtain them. The following topics are included:
●
Welcome to the R&S VSE HRP UWB application
Introduction to and getting familiar with the application
●
Measurements and Result Displays
Details on supported measurements and their result types
●
Configuration + Analysis
A concise description of all functions and settings available to configure measurements and analyze results with their corresponding remote control command
●
How to Perform Measurements in the R&S VSE HRP UWB application
The basic procedure to perform each measurement and step-by-step instructions
for more complex tasks or alternative methods
●
Remote Commands for R&S VSE HRP UWB application Measurements
Remote commands required to configure and perform R&S VSE HRP UWB application measurements in a remote environment, sorted by tasks
(Commands required to set up the environment or to perform common tasks in the
software are provided in the R&S VSE Base Software User Manual)
Programming examples demonstrate the use of many commands and can usually
be executed directly for test purposes
●
List of remote commands
Alphabetical list of all remote commands described in the manual
●
Index
1.2 Conventions used in the documentation
1.2.1 Typographical conventions
The following text markers are used throughout this documentation:
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Preface
Conventions used in the documentation
Convention Description
"Graphical user interface elements"
[Keys] Key and knob names are enclosed by square brackets.
Filenames, commands,
program code
Input Input to be entered by the user is displayed in italics.
Links Links that you can click are displayed in blue font.
"References" References to other parts of the documentation are enclosed by quota-
All names of graphical user interface elements on the screen, such as
dialog boxes, menus, options, buttons, and softkeys are enclosed by
quotation marks.
Filenames, commands, coding samples and screen output are distinguished by their font.
tion marks.
1.2.2 Conventions for procedure descriptions
When operating the instrument, several alternative methods may be available to perform the same task. In this case, the procedure using the touchscreen is described.
Any elements that can be activated by touching can also be clicked using an additionally connected mouse. The alternative procedure using the keys on the instrument or
the on-screen keyboard is only described if it deviates from the standard operating procedures.
The term "select" may refer to any of the described methods, i.e. using a finger on the
touchscreen, a mouse pointer in the display, or a key on the instrument or on a keyboard.
1.2.3 Notes on screenshots
When describing the functions of the product, we use sample screenshots. These
screenshots are meant to illustrate as many as possible of the provided functions and
possible interdependencies between parameters. The shown values may not represent
realistic usage scenarios.
The screenshots usually show a fully equipped product, that is: with all options installed. Thus, some functions shown in the screenshots may not be available in your particular product configuration.
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2 Welcome to the HRP UWB application
Welcome to the HRP UWB application
Starting the HRP UWB application
The R&S VSE-K149 is a firmware application that adds functionality to perform High
Rate Pulse Repetition Frequency (HRP) Ultrawideband (UWB) measurements with the
R&S VSE.
The R&S VSE HRP UWB application features:
●
Analysis of High Rate Pulse Repetition Frequency (HRP) Ultrawideband (UWB)
signals
●
Time of flight (TOF) measurements
●
Spectrum analysis
●
Pulse mask analysis
●
In Depth packet insights
This user manual contains a description of the functionality that the application provides, including remote control operation.
Functions that are not discussed in this manual are the same as in the spectrum application and are described in the R&S VSE User Manual. The latest version is available
for download at the product homepage.
2.1 Starting the HRP UWB application
Ultrawideband measurements require a separate application on the R&S VSE. It is
activated by creating a new measurement channel in HRP UWB mode.
To activate the HRP UWB application
1.
Select the "Add Channel" function in the Sequence tool window.
A dialog box opens that contains all operating modes and applications currently
available in your R&S VSE.
2. Select the "HRP UWB" item.
The R&S VSE opens a new measurement channel for the R&S VSE HRP UWB
application.
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2.2 Understanding the display information
Welcome to the HRP UWB application
Understanding the display information
The following figure shows a measurement diagram during analyzer operation. All different information areas are labeled. They are explained in more detail in the following
sections.
1 2 3 4
1 = Channel bar for firmware and measurement settings
2 = Window title bar with diagram-specific (trace) information
3 = Diagram area
4 = Diagram footer with diagram-specific information
The color of the bars below the bursts is defined as follows:
●
Blue: Selected packet
●
Green: Successful sync of all sections
●
Red: Detected burst, but no successful demodulation of SYNC section
●
Yellow: Successful demodulaton of just SYNC section
Channel bar information
In the R&S VSE HRP UWB application, the R&S VSE shows the following settings:
Table 2-1: Information displayed in the channel bar in the HRP UWB application
Ref Level Reference level
Att RF attenuation
Freq Center frequency for the RF signal
Capture Time Measurement time (data acquisition time)
Rec Length Record length
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Welcome to the HRP UWB application
Understanding the display information
SRate Sample rate
ABW Analysis Bandwidth
Channel Measurement Channel
Group Selected group of packets
Default configuration for all windows, set in the "Analysis" dialog.
Sel Packet Selected packet
Default configuration for all windows, set in the "Analysis" dialog.
In addition, the channel bar also displays information on instrument settings that affect
the measurement results even though this is not immediately apparent from the display
of the measured values (e.g. transducer or trigger settings). This information is displayed only when applicable for the current measurement. For details see the
R&S VSE Base Software User Manual.
Window title bar information
For each diagram, the header provides the following information:
1
Figure 2-1: Window title bar information in the R&S VSE HRP UWB application
1 = Window number
2 = Window type
3 = Trace color
4 = Trace number
5 = Trace mode
2
3
5
4
If a result display shows a different group or a different selected packet, this information is displayed right below the window title:
The group and selected packet can either be set in the analysis dialog for all displays
or in the result config dialog for individual displays.
Status bar information
The software status, errors and warnings and any irregularities in the software are indicated in the status bar at the bottom of the R&S VSE window.
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3 Measurements and result displays
3.1 Evaluation methods for HRP UWB
Measurements and result displays
Evaluation methods for HRP UWB
The data that was measured by the R&S VSE can be evaluated using various different
methods.
All results are determined from the I/Q data set captured for the measurement.
Storing Results
The results of the HRP UWB measurement can be stored to a file in ASCII format.
● Evaluation methods for HRP UWB......................................................................... 12
The following evaluation methods can be selected for HRP UWB measurements.
Chip Phase Jitter...........................................................................................................12
Chip Time Jitter.............................................................................................................13
Correlated Pulse........................................................................................................... 13
Magnitude Capture........................................................................................................14
Marker Table................................................................................................................. 14
Packet Insights..............................................................................................................14
Packet Spectrum...........................................................................................................16
Pulse............................................................................................................................. 16
Result Summary............................................................................................................17
Symbol Phase Jitter...................................................................................................... 20
Symbol Time Jitter.........................................................................................................21
Chip Phase Jitter
Displays a histogram of the phase jitter of chips in SYNC section of each packet.
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Measurements and result displays
Evaluation methods for HRP UWB
Remote command:
LAY:ADD? '1',RIGH,CJPH
Chip Time Jitter
Displays a histogram of the time jitter of chips in SYNC section of each packet.
Remote command:
LAY:ADD? '1',RIGH,CJT
Correlated Pulse
Displays the cross correlation of the measured UWB pulse of sync section and root
raised cosine (RRC) pulse defined in IEEE 802.15.4-2020.
Remote command:
LAY:ADD? '1',RIGH,XCOR
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Measurements and result displays
Evaluation methods for HRP UWB
Magnitude Capture
Displays the magnitude capture using a trace with "Positive Peak" detector. There are
different methods to configure packet detection. See Chapter 4.5, "Burst/Sync",
on page 43 for further details.
Remote command:
LAY:ADD? '1',RIGH,MCAP
Retrieving results see Chapter 6.5.2, "Magnitude capture", on page 63
Marker Table
Displays a table with the current marker values for the active markers.
This table is displayed automatically if configured accordingly.
Tip: To navigate within long marker tables, simply scroll through the entries with your
finger on the touchscreen.
Remote command:
LAY:ADD? '1',RIGH, MTAB
Packet Insights
Displays the values from the "Selected Packet" or the values of "All Packets": For all
packets in statistics, the values are “Identical” or “Mixed”. "Identical" means that the
packets have the same value (displayed in the Sel Packet column), whereas "Mixed"
indicates different values.
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Measurements and result displays
Evaluation methods for HRP UWB
Table 3-1: Displayed values
SYNC
Code Index Code index
Code Length Corresponding code length
Delta Length Delta length
Sync Length Number of analyzed symbols in SYNC section of the
SFD non-ERDEV: “short” / “long”
Data
Data Rate [Mb/s] Bit rate according to IEEE 802.15.4-2020 (Table
Chip Per Burst Non-HPRF: Chips Per Burst in line with IEEE
Hop Burst Non-HPRF: Hop Burst in line with IEEE
Length [Octets] Length of payload in octets including MAC FCS
packet including symbols in settling time
HRP-ERDEV BPRF: 0, 2
HRP-ERDEV HPRF: 1, 2, 3, 4
15-3) and IEEE 802.15.4z-2020 (Table 15-9a and
Table 15-10b)
802.15.4-2020 (Table 15-3)
802.15.4-2020 (Table 15-3)
octets
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Measurements and result displays
Evaluation methods for HRP UWB
Ranging Bit Ranging bit set or not
Reserved Bit Non-HPRF: Status of reserved bit
SECDEC SECDEC pass or fail
Constraint Length HPRF mode: CL3 or CL7
A0A1 HPRF mode: Values of A0 and A1 are shown
MAC FCS Verification result of MAC frame check sequence
(FCS)
Remote command:
LAY:ADD? '1',RIGH,PINS
Querying payload content: FETCh<n>:PACKet:DATA:PAYLoad? on page 65
Retrieving results see Chapter 6.5.3, "Packet insights", on page 65
Packet Spectrum
Displays the spectrum of the selected packet. Limit Lines are defined in Transmit
Power Spectral Density (IEEE 802.15.4-2020, Section 15.4.5). The limits are checked
only against the selected packet.
Remote command:
LAY:ADD? '1',RIGH,PSP
Pulse
Displays the pulse of the SYNC section of an UWB packet. Limit lines are set according to FIRA UWB PHY Technical Requirements v1.2, Section 5.2.5. The limits are
checked only against the selected packet.
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Measurements and result displays
Evaluation methods for HRP UWB
Remote command:
LAY:ADD? '1',RIGH,PULS
Result Summary
Displays various measurement results in numerical form, combined in one table.
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Evaluation methods for HRP UWB
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Evaluation methods for HRP UWB
Table 3-2: Displayed values
Frequency
Center Frequency Offset [Hz] Estimated frequency offset of the SYNC section.
Center Frequency Offset [ppm] Estimated frequency offset of the SYNC section rel-
Chip Clock Error [ppm] Estimated chip clock frequency error of the SYNC
Jitter
Symbol Time Jitter RMS [ps] RMS of the time jitter of symbols of the SYNC sec-
Chip Time Jitter RMS [ps] RMS of the time jitter of chips of the SYNC section
Correlated Pulse Cross correlation of measured UWB pulse and root
Pulse NMSE [dB] NMSE of the correlated pulse
Main Lobe Peak [%] Amplitude of the main lobe peak
Main Lobe Width [ns] Main lobe width of pulse at 80%
Main Lobe Min Width [ns] Required minimum width of main lobe according to
>0 => DUT has higher frequency than analyzer
ative to carrier frequency.
>0 => DUT has higher CLK frequency than analyzer
section.
tion
raised cosine (RRC) pulse defined in IEEE
802.15.4-2020
IEEE 802.15.4-2020 (Table 15-12)
Main Lobe Width Passed Passed if main lobe width is above minimum main
lobe width
Side Lobe Peak Location [ns] Location of side lobe peak relative to main lobe
peak
Side Lobe Peak [%] Amplitude of side lobe peak
Side Lobe Peak Passed Passed if side lobe peak is below 30%
Pulse FIRA UWB PHY Technical Requirements v1.2 RC2
Pulse Mask Passed if time domain pulse meets mask
Pulse Rise Monotonic Passed if time domain pulse rises monotonically
Pulse Rise Time [ns] Rise time of pulse
Pulse Rise Time Passed Pass if pulse rise time is smaller than 2.5ns
EVM FIRA UWB PHY Technical Requirements v1.2 RC2
SHR NRMSE [%] NRMSE of SHR section (omitting first µs)
PHR NRMSE [%] NRMSE of PHR section
PSDU NRMSE [%] NRMSE of PSDU section
STS NRMSE [%] NRMSE of STS section
PHR Pulse Level [dB] Pulse level of PHR section relative to SHR section
PSDU Pulse Level [dB] Pulse level of PSDU section relative to SHR section
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Measurements and result displays
Evaluation methods for HRP UWB
STS Pulse Level [dB] Pulse level of STS section relative to SHR section
Power
SHR Mean [dBm] Mean Power of SHR section
SHR Peak [dBm] Peak Power of SHR section
PSDU Mean [dBm] Mean Power of PSDU section
PSDU Peak [dBm] Peak Power of PSDU section
STS mean [dBm] Mean power of STS section
STS peak [dBm] Peak power of STS section
Spectrum Transmit Power Spectral Density defined in IEEE
Max Spectral Power [dBm / MHz] Maximum Spectral Power Density
Spectrum Mask Passed Passed if transmit PSD mask limits are met
Ranging
RMarker [ps] Ranging marker position defined in IEEE
Ranging marker in STS 1-4 [ps] Ranging marker position within STS in line with
802.15.4-2020, Section 15.4.5
802.15.4-2020 and IEEE 802.15.4z-2020, relative to
capture buffer
To estimate the time difference between several
captured packets, the RMarker can be evaluated.
IEEE 802.15.4z-2020, relative to capture buffer
For each result type, several values are displayed.
●
Sel packet
Values measured for the selected packet.
●
Average
Average value measured over all packets.
●
Min
Lowest value measured over all packets.
●
Max
Highest value measured over all packets.
Remote command:
LAY:ADD? '1',RIGH,RSUM
Retrieving results see Chapter 6.5.4, "Result summary", on page 66
Symbol Phase Jitter
Displays a histogram of the phase jitter of symbols in SYNC section of each packet.
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Evaluation methods for HRP UWB
Remote command:
LAY:ADD? '1',RIGH,SJPH
Symbol Time Jitter
Displays a histogram of the time jitter of symbols in SYNC section of each packet.
Remote command:
LAY:ADD? '1',RIGH,SJT
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4 Configuration
4.1 Configuration overview
Configuration
Configuration overview
● Configuration overview............................................................................................22
● Input and frontend settings......................................................................................23
● Trigger settings....................................................................................................... 37
● Data acquisition.......................................................................................................41
● Burst/Sync...............................................................................................................43
● Demodulation..........................................................................................................44
● Evaluation range..................................................................................................... 46
● Result configuration................................................................................................ 49
Throughout the measurement channel configuration, an overview of the most important
currently defined settings is provided in the "Overview".
The "Overview" is displayed when you select the "Overview" icon, which is available in
the Meas Setup menu.
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".
To configure settings
► Select any button in the "Overview" to open the corresponding dialog box.
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4.2 Input and frontend settings
Configuration
Input and frontend settings
Preset Channel
Select the "Preset Channel" button in the lower left-hand corner of the "Overview" to
restore all measurement settings in the current channel to their default values.
Remote command:
SYSTem:PRESet:CHANnel[:EXEC] on page 62
Access: "Overview" > "Input/Frontend"
The R&S VSE can evaluate signals from different input sources and provide various
types of output (such as trigger signals).
The frequency and amplitude settings represent the "frontend" of the measurement
setup.
● Input source settings...............................................................................................23
● Frequency settings..................................................................................................31
● Amplitude settings...................................................................................................32
● Scaling.................................................................................................................... 36
4.2.1 Input source settings
Access: "Overview" > "Input/Frontend" > "Input Source"
Or: "Input & Output" > "Input Source"
The R&S VSE can control the input sources of the connected instruments.
● Radio frequency input............................................................................................. 23
● I/Q file input.............................................................................................................29
4.2.1.1 Radio frequency input
Or: "Input & Output" > "Input Source" > "Radio Frequency"
The default input source for the connected instrument is "Radio Frequency". Depending on the connected instrument, different input parameters are available.
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Configuration
Input and frontend settings
Figure 4-1: RF input source settings for an R&S FSW with B2000 option
If the Frequency Response Correction option (R&S VSE-K544) is installed, the R&S
VSE HRP UWB application also supports frequency response correction using Touchstone (.snp) files or .fres files.
Input Type (Instrument / File)........................................................................................24
Instrument..................................................................................................................... 25
Input 1 / Input 2............................................................................................................. 25
Input Coupling ..............................................................................................................25
Impedance ................................................................................................................... 25
Direct Path ................................................................................................................... 25
High Pass Filter 1 to 3 GHz ..........................................................................................26
YIG-Preselector ............................................................................................................26
Capture Mode............................................................................................................... 26
B2000 State.................................................................................................................. 27
Oscilloscope Sample Rate............................................................................................27
Oscilloscope Splitter Mode............................................................................................28
Oscilloscope IP Address............................................................................................... 28
Preselector State...........................................................................................................28
Preselector Mode..........................................................................................................28
10 dB Minimum Attenuation..........................................................................................29
Input Type (Instrument / File)
Selects an instrument or a file as the type of input provided to the channel.
Note: External mixers are only available for input from a connected instrument.
Note: If the R&S VSE software is installed directly on an instrument, or integrated in
Cadence®AWR®VSS, some restrictions apply on the available input type.
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Configuration
Input and frontend settings
Remote command:
INSTrument:BLOCk:CHANnel[:SETTings]:SOURce<si> on page 77
INPut<ip>:SELect on page 76
Instrument
Specifies a configured instrument to be used for input.
Input 1 / Input 2
For instruments with two input connectors, you must define which input source is used
for each measurement channel.
Note that you cannot use both RF inputs simultaneously.
"Input 1"
R&S FSW85: 1.00 mm RF input connector for frequencies up to
85 GHz (90 GHz with option R&S FSW-B90G)
"Input2"
Remote command:
INPut<ip>:TYPE on page 76
Input Coupling
The RF input of the R&S VSE can be coupled by alternating current (AC) or direct current (DC).
The RF input of the connected instrument can be coupled by alternating current (AC)
or direct current (DC).
For an active external frontend, input coupling is always DC.
AC coupling blocks any DC voltage from the input signal. AC coupling is activated by
default to prevent damage to the instrument. Very low frequencies in the input signal
can be distorted.
However, some specifications require DC coupling. In this case, you must protect the
instrument from damaging DC input voltages manually. For details, refer to the data
sheet.
Remote command:
INPut<ip>:COUPling<ant> on page 71
Impedance
For some measurements, the reference impedance for the measured levels of the connected instrument can be set to 50 Ω or 75 Ω.
R&S FSW85: 1.85 mm RF input connector for frequencies up to
67 GHz
Select 75 Ω if the 50 Ω input impedance is transformed to a higher impedance using a
75 Ω adapter of the RAZ type. (That corresponds to 25Ω in series to the input impedance of the instrument.) The correction value in this case is 1.76 dB = 10 log (75Ω/
50Ω).
Remote command:
INPut<ip>:IMPedance<ant> on page 73
Direct Path
Enables or disables the use of the direct path for small frequencies.
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Input and frontend settings
In spectrum analyzers, passive analog mixers are used for the first conversion of the
input signal. In such mixers, the LO signal is coupled into the IF path due to its limited
isolation. The coupled LO signal becomes visible at the RF frequency 0 Hz. This effect
is referred to as LO feedthrough.
To avoid the LO feedthrough the spectrum analyzer provides an alternative signal path
to the A/D converter, referred to as the direct path. By default, the direct path is
selected automatically for RF frequencies close to zero. However, this behavior can be
disabled. If "Direct Path" is set to "Off" , the spectrum analyzer always uses the analog
mixer path.
For an active external frontend, the direct path is always used automatically for frequencies close to zero.
"Auto"
"Off"
Remote command:
INPut<ip>:DPATh on page 71
(Default) The direct path is used automatically for frequencies close
to zero.
The analog mixer path is always used.
High Pass Filter 1 to 3 GHz
Activates an additional internal highpass filter for RF input signals from 1 GHz to
3 GHz. This filter is used to remove the harmonics of the analyzer to measure the harmonics for a DUT, for example.
For some connected instruments, this function requires an additional hardware option
on the instrument.
Note: For RF input signals outside the specified range, the high-pass filter has no
effect. For signals with a frequency of approximately 4 GHz upwards, the harmonics
are suppressed sufficiently by the YIG-preselector, if available.)
Remote command:
INPut<ip>:FILTer:HPASs[:STATe] on page 72
YIG-Preselector
Enables or disables the YIG-preselector.
This setting requires an additional option on the connected instrument.
Note: Note that the YIG-preselector is active only higher frequencies, depending on
the connected instrument. Therefore, switching the YIG-preselector on or off has no
effect if the frequency is below that value.
To use the optional 90 GHz frequency extension (R&S FSW-B90G), the YIG-preselector must be disabled.
To use the optional 54 GHz frequency extension (R&S FSV3-B54G), the YIG-preselector must be disabled.
Remote command:
INPut<ip>:FILTer:YIG[:STATe] on page 73
Capture Mode
Determines how data from an oscilloscope is input to the R&S VSE software.
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Input and frontend settings
This function is only available for a connected R&S oscilloscope with a firmware version 3.0.1.1 or higher (for other versions and instruments the input is always I/Q data).
"I/Q"
"Waveform"
"Auto"
Remote command:
INPut<ip>:RF:CAPMode on page 74
The measured waveform is converted to I/Q data directly on the R&S
oscilloscope (requires option K11), and input to the R&S VSE software as I/Q data.
For data imports with small bandwidths, importing data in this format
is quicker. However, the maximum record length is restricted by the
R&S oscilloscope. (Memory options on the R&S oscilloscope are not
available for I/Q data.)
The data is input in its original waveform format and converted to I/Q
data in the R&S VSE software. No additional options are required on
the R&S oscilloscope.
For data imports with large bandwidths, this format is more convenient as it allows for longer record lengths if appropriate memory
options are available on the R&S oscilloscope.
Uses "I/Q" mode when possible, and "Waveform" only when required
by the application (e.g. Pulse measurement, oscilloscope baseband
input).
B2000 State
Activates the optional 2 GHz bandwidth extension (R&S FSW-B2000).
Note: The R&S VSE software supports input from a connected R&S FSW with a
B2000 option installed. However, the R&S FSW interface to the oscilloscope must be
set up and aligned directly on the instrument before the R&S VSE software can start
analyzing the input.
The analysis bandwidth is defined in the data acquisition settings of the application as
usual. Note that the maximum bandwidth cannot be restricted manually as for other
bandwidth extension options.
Manual operation on the connected oscilloscope, or remote operation other than by the
R&S VSE, is not possible while the B2000 option is active.
Remote command:
SYSTem:COMMunicate:RDEVice:OSCilloscope[:STATe] on page 78
Oscilloscope Sample Rate
Determines the sample rate used by the connected oscilloscope.
This setting is only available if an R&S oscilloscope is used to obtain the input data,
either directly or via the R&S FSW.
"10
GHz"
Default for waveform Capture Mode (not available for I/Q Capture
Mode); provides maximum record length
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Configuration
Input and frontend settings
"20 GHz"
"40 GHz"
Remote command:
Input source R&S FSW via oscilloscope:
SYSTem:COMMunicate:RDEVice:OSCilloscope:SRATe on page 80
Input source oscilloscope waveform mode:
INPut<ip>:RF:CAPMode:WAVeform:SRATe on page 75
Input source oscilloscope I/Q mode:
INPut<ip>:RF:CAPMode:IQ:SRATe on page 75
Oscilloscope Splitter Mode
Activates the use of the power splitter inserted between the [IF 2 GHZ OUT] connector
of the R&S FSW and the [CH1] and [CH3] input connectors of the oscilloscope. Note
that this mode requires an additional alignment with the power splitter.
For details see the R&S FSW I/Q Analyzer and I/Q Input User Manual.
Achieves a higher decimation gain, but reduces the record length by
half.
Only available for R&S oscilloscope models that support a sample
rate of 20 GHz (see data sheet).
For R&S oscilloscopes with an analysis bandwidth of 4 GHz or larger,
a sample rate of 20 GHZ is always used in waveform Capture Mode
Provides a maximum sample rate.
Only available for I/Q Capture Mode, and only for R&S RTP13/RTP16
models that support a sample rate of 40 GHz (see data sheet)
Remote command:
SYSTem:COMMunicate:RDEVice:OSCilloscope:PSMode[:STATe] on page 79
Oscilloscope IP Address
When using the optional 2 GHz bandwidth extension (R&S FSW-B2000) with an R&S
FSW as the connected instrument, the entire measurement, as well as both instruments, are controlled by the R&S VSE software. Thus, the instruments must be connected via LAN, and the TCPIP address of the oscilloscope must be defined in the
R&S VSE software.
For tips on how to determine the computer name or TCPIP address, see the oscilloscope's user documentation.
Remote command:
SYSTem:COMMunicate:RDEVice:OSCilloscope:TCPip on page 79
Preselector State
Turns the preselector on and off.
When you turn on the preselector, you can configure the characteristics of the prese-
lector and add the preamplifier into the signal path.
When you turn off the preselector, the signal bypasses the preselector and the pream-
plifier, and is fed into the input mixer directly.
Remote command:
INPut<ip>:PRESelection[:STATe] on page 74
Preselector Mode
Selects the preselection filters to be applied to the measurement.
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Configuration
Input and frontend settings
"Auto"
"Auto Wide"
"Auto Narrow"
"Manual"
Remote command:
INPut<ip>:PRESelection:SET on page 74
10 dB Minimum Attenuation
Turns the availability of attenuation levels of less than 10 dB on and off.
Automatically applies all available bandpass filters in a measurement.
Available with the optional preamplifier.
Automatically applies the wideband filters consecutively:
●
Lowpass 40 MHz
●
Bandpass 30 MHz to 2250 MHz
●
Bandpass 2 GHz to 8 GHz
●
Bandpass 8 GHz to 26.5 GHz
Available with the optional preselector.
Automatically applies the most suitable narrowband preselection fil-
ters in a measurement, depending on the bandwidth you have
selected.
For measurement frequencies up to 30 MHz, the connected instrument uses combinations of lowpass and highpass filters. For higher
frequencies, the connected instrument uses bandpass filters.
Available with the optional preselector.
Applies the filter settings you have defined manually.
When you turn on this feature, the attenuation is always at least 10 dB. This minimum
attenuation protects the input mixer and avoids accidental setting of 0 dB, especially if
you measure EUTs with high RFI voltage.
When you turn it off, you can also select attenuation levels of less than 10 dB.
The setting applies to a manual selection of the attenuation as well as the automatic
selection of the attenuation.
Remote command:
INPut<ip>:ATTenuation:PROTection:RESet on page 70
4.2.1.2 I/Q file input
Or: "Input & Output" > "Input Source" > "I/Q File"
Loading a file via drag&drop
You can load a file simply by selecting it in a file explorer and dragging it to the
R&S VSE software. Drop it into the "Measurement Group Setup" window or the channel bar for any channel. The channel is automatically configured for file input, if necessary. If the file contains all essential information, the file input is immediately displayed
in the channel. Otherwise, the "Recall I/Q Recording" dialog box is opened for the
selected file so you can enter the missing information.
If the file contains data from multiple channels (e.g. from LTE measurements), it can be
loaded to individual input sources, if the application supports them.
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Input and frontend settings
The "Input Source" settings defined in the "Input" dialog box are identical to those configured for a specific channel in the "Measurement Group Setup" window.
If the Frequency Response Correction option (R&S VSE-K544) is installed, the R&S
VSE HRP UWB application also supports frequency response correction using Touchstone (.snp) files or .fres files.
Encrypted .wv files can also be imported. Note, however, that traces resulting from
encrypted file input cannot be exported or stored in a saveset.
Input Type (Instrument / File)........................................................................................30
Input File....................................................................................................................... 30
Zero Padding.................................................................................................................31
Input Type (Instrument / File)
Selects an instrument or a file as the type of input provided to the channel.
Note: External mixers are only available for input from a connected instrument.
Note: If the R&S VSE software is installed directly on an instrument, or integrated in
Cadence®AWR®VSS, some restrictions apply on the available input type.
Remote command:
INSTrument:BLOCk:CHANnel[:SETTings]:SOURce<si> on page 77
INPut<ip>:SELect on page 76
Input File
Specifies the I/Q data file to be used for input.
Select "Select File" to open the "Load I/Q File" dialog box.
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Configuration
Input and frontend settings
Zero Padding
Enables or disables zero padding for input from an I/Q data file that requires resampling. For resampling, a number of samples are required due to filter settling. These
samples can either be taken from the provided I/Q data, or the software can add the
required number of samples (zeros) at the beginning and end of the file.
If enabled, the required number of samples are inserted as zeros at the beginning and
end of the file. The entire input data is analyzed. However, the additional zeros can
effect the determined spectrum of the I/Q data. If zero padding is enabled, a status
message is displayed.
If disabled (default), no zeros are added. The required samples for filter settling are
taken from the provided I/Q data in the file. The start time in the R&S VSE Player is
adapted to the actual start (after filter settling).
Note: You can activate zero padding directly when you load the file, or afterwards in
the "Input Source" settings.
Remote command:
INPut<ip>:FILE:ZPADing on page 72
4.2.2 Frequency settings
Access: "Overview" > "Input/Frontend" > "Frequency" tab
Center Frequency ........................................................................................................ 31
Center Frequency Stepsize ..........................................................................................32
Frequency Offset ..........................................................................................................32
Center Frequency
Defines the center frequency of the signal in Hertz.
0 Hz ≤ f
Note: For file input, you can shift the center frequency of the current measurement
compared to the stored measurement data. The maximum shift depends on the sample rate of the file data.
center
≤ f
max
If the file does not provide the center frequency, it is assumed to be 0 Hz.
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Configuration
Input and frontend settings
To ensure that the input data remains within the valid analysis bandwidth, define the
center frequency and the analysis bandwidth for the measurement such that the following applies:
Remote command:
[SENSe:]FREQuency:CENTer on page 107
Center Frequency Stepsize
Defines the step size by which the center frequency is increased or decreased using
the arrow keys.
When you use the mouse wheel, the center frequency changes in steps of only 1/10 of
the span.
The step size can be coupled to another value or it can be manually set to a fixed
value.
"Manual"
Remote command:
[SENSe:]FREQuency:CENTer:STEP on page 107
Defines a fixed step size for the center frequency. Enter the step size
in the "Value" field.
Frequency Offset
Shifts the displayed frequency range along the x-axis by the defined offset.
This parameter has no effect on the instrument's hardware, on the captured data, or on
data processing. It is simply a manipulation of the final results in which absolute frequency values are displayed. Thus, the x-axis of a spectrum display is shifted by a
constant offset if it shows absolute frequencies. However, if it shows frequencies relative to the signal's center frequency, it is not shifted.
A frequency offset can be used to correct the display of a signal that is slightly distorted
by the measurement setup, for example.
The allowed values range from -1 THz to 1 THz. The default setting is 0 Hz.
Remote command:
[SENSe:]FREQuency:OFFSet on page 107
4.2.3 Amplitude settings
Access: "Overview" > "Input/Frontend" > "Amplitude" tab
Amplitude settings affect the signal power or error levels.
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Configuration
Input and frontend settings
Note that amplitude settings are not window-specific, as opposed to the scaling and
unit settings.
Reference Level ...........................................................................................................33
└ Shifting the Display ( Offset ).......................................................................... 34
RF Attenuation.............................................................................................................. 34
└ Attenuation Mode / Value ...............................................................................34
Using Electronic Attenuation ........................................................................................34
Input Settings................................................................................................................ 35
└ Preamplifier ....................................................................................................35
└ Impedance ..................................................................................................... 35
Reference Level
Defines the expected maximum reference level. Signal levels above this value are possibly not measured correctly. Signals above the reference level are indicated by an "IF
Overload" status display.
The reference level can also be used to scale power diagrams; the reference level is
then used for the calculation of the maximum on the y-axis.
Since the hardware of the connected instrument is adapted according to this value, it is
recommended that you set the reference level close above the expected maximum signal level. Thus you ensure an optimal measurement (no compression, good signal-tonoise ratio).
Note that for input from the External Mixer (R&S VSE-B21) the maximum reference
level also depends on the conversion loss; see the R&S VSE base software user manual for details.
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Configuration
Input and frontend settings
For an active external frontend, the reference level refers to the RF input at the external frontend, not the levels at the RF input of the connected instrument. The hardware
is adjusted to the defined reference level optimally for input signals with a crest factor
of 10 dB. Thus, the required reference level for an optimal measurement can differ
depending on the crest factor of the input signal.
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:
RLEVel<ant> on page 108
Shifting the Display ( Offset ) ← Reference Level
Defines an arithmetic level offset. This offset is added to the measured level. In some
result displays, the scaling of the y-axis is changed accordingly.
Define an offset if the signal is attenuated or amplified before it is fed into the R&S VSE
so the application shows correct power results. All displayed power level results are
shifted by this value.
The setting range is ±200 dB in 0.01 dB steps.
Note, however, that the internal reference level (used to adjust the hardware settings to
the expected signal) ignores any "Reference Level Offset" . Thus, it is important to
keep in mind the actual power level the R&S VSE must handle. Do not rely on the displayed reference level (internal reference level = displayed reference level - offset).
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:
RLEVel<ant>:OFFSet on page 109
RF Attenuation
Defines the mechanical attenuation for RF input.
Attenuation Mode / Value ← RF Attenuation
The RF attenuation can be set automatically as a function of the selected reference
level (Auto mode). Automatic attenuation ensures that no overload occurs at the RF
Input connector for the current reference level. It is the default setting.
In "Manual" mode, you can set the RF attenuation in 1 dB steps (down to 0 dB). Other
entries are rounded to the next integer value. The range is specified in the data sheet.
If the defined reference level cannot be set for the defined RF attenuation, the reference level is adjusted accordingly and the warning "limit reached" is displayed.
NOTICE! Risk of hardware damage due to high power levels. When decreasing the
attenuation manually, ensure that the power level does not exceed the maximum level
allowed at the RF input, as an overload can lead to hardware damage.
Remote command:
INPut<ip>:ATTenuation on page 113
INPut<ip>:ATTenuation:AUTO on page 113
Using Electronic Attenuation
If the (optional) Electronic Attenuation hardware is installed on the connected instrument, you can also activate an electronic attenuator.
In "Auto" mode, the settings are defined automatically; in "Manual" mode, you can
define the mechanical and electronic attenuation separately.
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Configuration
Input and frontend settings
For an active external frontend, electronic attenuation is not available.
Note: Note that restrictions can apply concerning which frequencies electronic attenua-
tion is available for, depending on which instrument is connected to the R&S VSE software. Check your instrument documentation for details.
In "Auto" mode, RF attenuation is provided by the electronic attenuator as much as
possible to reduce the amount of mechanical switching required. Mechanical attenuation can provide a better signal-to-noise ratio, however.
When you switch off electronic attenuation, the RF attenuation is automatically set to
the same mode (auto/manual) as the electronic attenuation was set to. Thus, the RF
attenuation can be set to automatic mode, and the full attenuation is provided by the
mechanical attenuator, if possible.
If the defined reference level cannot be set for the given attenuation, the reference
level is adjusted accordingly and the warning "limit reached" is displayed in the status
bar.
Remote command:
INPut<ip>:EATT:STATe on page 115
INPut<ip>:EATT:AUTO on page 114
INPut<ip>:EATT on page 114
Input Settings
Some input settings affect the measured amplitude of the signal, as well.
For information on other input settings see Chapter 4.2.1.1, "Radio frequency input",
on page 23.
Preamplifier ← Input Settings
If the (optional) internal preamplifier hardware is installed on the connected instrument,
a preamplifier can be activated for the RF input signal.
Note: If an optional external preamplifier is activated, the internal preamplifier is automatically disabled, and vice versa.
For an active external frontend, a preamplifier is not available.
"Off"
"15 dB"
"30 dB"
Depending on the connected instrument, different settings are available. See the
instrument's documentation for details.
Remote command:
INPut<ip>:GAIN<ant>:STATe on page 109
INPut<ip>:GAIN<ant>[:VALue] on page 110
Impedance ← Input Settings
For some measurements, the reference impedance for the measured levels of the connected instrument can be set to 50 Ω or 75 Ω.
Deactivates the preamplifier.
The RF input signal is amplified by about 15 dB.
The RF input signal is amplified by about 30 dB.
Select 75 Ω if the 50 Ω input impedance is transformed to a higher impedance using a
75 Ω adapter of the RAZ type. (That corresponds to 25Ω in series to the input impedance of the instrument.) The correction value in this case is 1.76 dB = 10 log (75Ω/
50Ω).
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4.2.4 Scaling
Configuration
Input and frontend settings
Remote command:
INPut<ip>:IMPedance<ant> on page 73
Access: "Input & Output" > "Scale"
Depending on the type of display (time, spectrum or statistics), various scaling functions are available to adapt the result display to the current data.
Note that scaling settings are window-specific, as opposed to the amplitude settings.
A visualization of the diagram scaling with the current settings is displayed at the right
side of the dialog box.
Auto Scale Once .......................................................................................................... 36
Defining Min and Max Values........................................................................................37
Range per Division........................................................................................................37
Reference Position........................................................................................................37
Reference Value............................................................................................................37
Auto Scale Once
Automatically determines the optimal range and reference level position to be displayed for the current measurement settings.
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Configuration
Trigger settings
The display is only set once; it is not adapted further if the measurement settings are
changed again.
This function is only available for RF measurements.
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:AUTO ONCE
on page 110
Defining Min and Max Values
Defines the displayed y-axis range in dB.
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:MINimum
on page 111
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:MAXimum
on page 111
Range per Division
Defines the value range to be displayed per division.
Note: If fewer divisions are displayed (e.g. because the window is reduced in height),
the range per division is increased to display the same result range in the smaller window. In this case, the per division value does not correspond to the actual display.
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:PDIVision
on page 111
Reference Position
Defines the position of the reference value on the y-axis. The position is defined as a
percentage value, where 0 % refers to the bottom edge, 100 % refers to the top edge
of the screen. The y-axis is adapted so that the reference value is displayed at the reference position.
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RPOSition
on page 112
Reference Value
Defines a reference value on the y-axis in the current unit. The y-axis is adapted so
that the reference value is displayed at the reference postion.
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RVALue
on page 112
4.3 Trigger settings
Access: "Overview" > "Trigger" > "Trigger Source"/"Trigger In/Out"
Trigger settings determine when the input signal is measured. Note that gating is not
available for hop measurements.
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Configuration
Trigger settings
External triggers from one of the [TRIGGER INPUT/OUTPUT] connectors on the connected instrument are configured in a separate tab of the dialog box.
For details see R&S VSE Base Software User Manual.
For step-by-step instructions on configuring triggered measurements, see the
R&S VSE User Manual.
Trigger Settings.............................................................................................................38
└ Trigger Source................................................................................................ 38
└ Free Run ..............................................................................................39
└ External Trigger 1/2/3/4........................................................................ 39
└ External Channel 3 .............................................................................. 39
└ IF Power .............................................................................................. 39
└ I/Q Power .............................................................................................39
└ RF Power .............................................................................................40
└ Trigger Level ..................................................................................................40
└ Drop-Out Time ............................................................................................... 40
└ Trigger Offset .................................................................................................40
└ Slope ..............................................................................................................40
└ Hysteresis ...................................................................................................... 41
└ Trigger Holdoff ............................................................................................... 41
Trigger Settings
The trigger settings define the beginning of a measurement.
Trigger Source ← Trigger Settings
Defines the trigger source. If a trigger source other than "Free Run" is set, "TRG" is
displayed in the channel bar and the trigger source is indicated.
Note: When triggering is activated, the squelch function is automatically disabled.
Remote command:
TRIGger[:SEQuence]:SOURce on page 119
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Configuration
Trigger settings
Free Run ← Trigger Source ← Trigger Settings
No trigger source is considered. Data acquisition is started manually or automatically
and continues until stopped explicitly.
Remote command:
TRIG:SOUR IMM, see TRIGger[:SEQuence]:SOURce on page 119
External Trigger 1/2/3/4 ← Trigger Source ← Trigger Settings
Data acquisition starts when the TTL signal fed into the specified input connector
meets or exceeds the specified trigger level.
Note: If the optional 2 GHz bandwidth extension (B2000) is active, only External Chan-
nel 3 is supported.
For details, see the "Instrument Tour" chapter in the R&S VSE Getting Started manual.
"External Trigger 1"
Trigger signal from the "TRIGGER 1 INPUT" connector.
"External Trigger 2"
Trigger signal from the "TRIGGER 2 INPUT / OUTPUT" connector.
Remote command:
See TRIGger[:SEQuence]:SOURce on page 119
External Channel 3 ← Trigger Source ← Trigger Settings
Data acquisition starts when the signal fed into the "Ch3" input connector on the oscilloscope meets or exceeds the specified trigger level.
Note: In previous firmware versions, the external trigger was connected to the "Ch2"
input on the oscilloscope. As of firmware version R&S VSE 2.30, the "Ch3" input on the
oscilloscope must be used!
Note: Since the external trigger uses a second channel on the oscilloscope, the maximum memory size, and thus record length, available for the input channel 1 may be
reduced by half. For details, see the oscilloscope's data sheet and documentation.
Remote command:
TRIG:SOUR EXT, see TRIGger[:SEQuence]:SOURce on page 119
IF Power ← Trigger Source ← Trigger Settings
The R&S VSE starts capturing data as soon as the trigger level is exceeded around
the third intermediate frequency.
(The third IF represents the center frequency.)
This trigger source is only available for RF input.
The available trigger levels depend on the RF attenuation and preamplification. A refer-
ence level offset, if defined, is also considered.
For details on available trigger levels and trigger bandwidths, see the data sheet.
Remote command:
TRIG:SOUR IFP, see TRIGger[:SEQuence]:SOURce on page 119
I/Q Power ← Trigger Source ← Trigger Settings
Triggers the measurement when the magnitude of the sampled I/Q data exceeds the
trigger threshold.
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Configuration
Trigger settings
Remote command:
TRIG:SOUR IQP, see TRIGger[:SEQuence]:SOURce on page 119
RF Power ← Trigger Source ← Trigger Settings
Defines triggering of the measurement via signals which are outside the displayed
measurement range.
For this purpose, the software uses a level detector at the first intermediate frequency.
The resulting trigger level at the RF input depends on the RF attenuation and preampli-
fication. For details on available trigger levels, see the instrument's data sheet.
Note: If the input signal contains frequencies outside of this range (e.g. for fullspan
measurements), the measurement can be aborted. A message indicating the allowed
input frequencies is displayed in the status bar.
A "Trigger Offset" , "Trigger Polarity" and "Trigger Holdoff" (to improve the trigger stability) can be defined for the RF trigger, but no "Hysteresis" .
Remote command:
TRIG:SOUR RFP, see TRIGger[:SEQuence]:SOURce on page 119
Trigger Level ← Trigger Settings
Defines the trigger level for the specified trigger source.
For details on supported trigger levels, see the instrument data sheet.
Remote command:
TRIGger[:SEQuence]:LEVel[:EXTernal<port>] on page 117
Drop-Out Time ← Trigger Settings
Defines the time that the input signal must stay below the trigger level before triggering
again.
Remote command:
TRIGger[:SEQuence]:DTIMe on page 116
Trigger Offset ← Trigger Settings
Defines the time offset between the trigger event and the start of the measurement.
Offset > 0: Start of the measurement is delayed
Offset < 0: Measurement starts earlier (pretrigger)
(If supported by the connected instrument.)
Remote command:
TRIGger[:SEQuence]:HOLDoff[:TIME] on page 116
Slope ← Trigger Settings
For all trigger sources except time, you can define whether triggering occurs when the
signal rises to the trigger level or falls down to it.
Remote command:
TRIGger[:SEQuence]:SLOPe on page 118
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Configuration
Data acquisition
Hysteresis ← Trigger Settings
Defines the distance in dB to the trigger level that the trigger source must exceed
before a trigger event occurs. Setting a hysteresis avoids unwanted trigger events
caused by noise oscillation around the trigger level.
This setting is only available for "IF Power" or "Magnitude (Offline)" trigger sources.
Remote command:
TRIGger[:SEQuence]:IFPower:HYSTeresis on page 116
TRIGger[:SEQuence]:MAPower:HYSTeresis on page 121
Trigger Holdoff ← Trigger Settings
Defines the minimum time (in seconds) that must pass between two trigger events.
Trigger events that occur during the holdoff time are ignored.
Remote command:
TRIGger[:SEQuence]:IFPower:HOLDoff on page 116
TRIGger[:SEQuence]:MAPower:HOLDoff on page 120
4.4 Data acquisition
Access: "Overview" > "Data Acquisition"
The data acquisition settings of the R&S VSE can be configured to evaluate signals
from different UWB channels.
Capture Time.................................................................................................................42
Channel.........................................................................................................................42
Default Values............................................................................................................... 42
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Configuration
Data acquisition
Sample Rate................................................................................................................. 42
Maximum Bandwidth.....................................................................................................42
Analysis Bandwidth.......................................................................................................43
Capture Length............................................................................................................. 43
Capture Time
Specifies the duration (and therefore the amount of data) to be captured in the capture
buffer. If the capture time is too short, demodulation will fail. In particular, if the result
length does not fit in the capture buffer, demodulation will fail.
When connecting to an R&S RTP oscilloscope, different modes are possible. See
R&S VSE base unit user manual for further details. The maximum capture time
depends on the available software and hardware options of the connected R&S RTP
oscilloscope.
Remote command:
[SENSe:]SWEep:TIME on page 123
Channel
Selects the HRP UWB Channel according to the IEEE 802.15.4z-2020 standard, a
center frequency and a measurement bandwidth is predefined. By selecting the "Set
CF" button, the center frequency of the R&S VSE is set according to the definition in
the selected channel.
Remote command:
[SENSe:]CAPTure:PRESet on page 124
[SENSe:]CAPTure:FSET on page 124
Default Values
If the default values button is set to "On", Sample Rate and Maximum Bandwidth BW
are set automatically for the selected channel. Select "Off" to configure the settings for
Sample Rate and Maximum Bandwidth manually.
Remote command:
[SENSe:]CAPTure:DEFault on page 124
Sample Rate
Defines the sample rate used for the measurement. The sample rate can be set as an
even multiple of the chip rate.
Remote command:
[SENSe:]CAPTure:OVERsampling on page 124
[SENSe:]SRATe on page 124
Maximum Bandwidth
If "Auto" is selected, the analysis bandwidth is defined automatically. The available
analysis bandwidths depend on the installed bandwidth extension options of the
R&S VSE.
Remote command:
TRACe:IQ:WBANd[:STATe] on page 125
TRACe:IQ:WBANd:MBWidth on page 125
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4.5 Burst/Sync
Configuration
Burst/Sync
Analysis Bandwidth
Displays the selected analysis bandwidth for the signal.
It the "Sufficient ABW for channels" marker is green, the analysis bandwidth is suffi-
cient for the analysis of the corresponding channels.
Capture Length
Shows the capture length in chips and samples.
Remote command:
[SENSe:]CAPTure:LENGth:CHIPs? on page 125
Access: "Overview" > "Burst/Sync"
The "Burst/Sync" dialog provides functionality to configure how packets are detected.
Reference......................................................................................................................43
Threshold...................................................................................................................... 44
Min Burst Length...........................................................................................................44
Max Burst Length..........................................................................................................44
Max Off Time within Burst.............................................................................................44
Evaluation Offset...........................................................................................................44
Reference
Select the reference for packet detection.
●
"Noise": The noise floor is detected and shown in the magnitude capture result display. The detection level is the noise level + the defined threshold in dB.
●
"Absolute": The absolute detection level in dBm is defined by the threshold in dBm.
In the magnitude capture result display, only the detection level is shown.
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Configuration
Demodulation
●
"Peak": The peak level of the whole capture buffer is detected. The detection level
is the peak level + the defined threshold in dB.
●
"Ref level": The detection level is the reference level + the defined threshold in dB.
In the magnitude capture result display, just the detection level is shown.
Remote command:
[SENSe:]DETect:REFerence on page 125
Threshold
Defines the detection threshold in dB.
Remote command:
[SENSe:]DETect:THReshold on page 126
Min Burst Length
Defines the minimum burst length.
Remote command:
[SENSe:]DETect:BURSt:LENGth:MINimum on page 126
Max Burst Length
Defines the maximum burst length.
Remote command:
[SENSe:]DETect:BURSt:LENGth:MAXimum on page 126
Max Off Time within Burst
Defines the maximum allowed off time within a burst.
Remote command:
[SENSe:]DETect:OFF:TIME:MAXimum on page 126
Evaluation Offset
Sets the offset of the beginning of the detected burst to where to start detection within
SYNC section.
Remote command:
[SENSe:]DETect:EVALuation:OFFSet on page 126
4.6 Demodulation
Access: "Overview" > "Demodulation"
The settings of the R&S VSE can be configured to demodulate different UWB signals.
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Configuration
Demodulation
Mode............................................................................................................................. 45
PHY Data Rate Mode....................................................................................................45
HPRF Payload Size...................................................................................................... 46
MAC FCS......................................................................................................................46
Packet Configuration.....................................................................................................46
Active Segment Length.................................................................................................46
Active Segments........................................................................................................... 46
Gap (x4 chips)...............................................................................................................46
Mode
Sets the HRP UWB mode.
●
"802.15.4": Enables HRP non-ERDEV mode.
●
"802.15.4z-BPRF": Enables HRP-ERDEV base pulse repetition frequency (BPRF)
mode.
●
"802.15.4z-HPRF": Enables HRP-ERDEV higher pulse repetition frequency
(HPRF) mode.
Remote command:
[SENSe:]DEMod:MODE on page 127
PHY Data Rate Mode
In "BPRF" mode, "DRBM_LP" and "DRBM_HP" can be selected. In "HPRF" mode,
"DRHM_LR" and "DRHM_HR " can be selected.
Remote command:
[SENSe:]DEMod:PHRRate on page 127
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Configuration
Evaluation range
HPRF Payload Size
Defines the maximum payload size in "HPRF" mode. It influences how A0A1-Bits in the
header are handled. See "A0A1" row in the packet insights table.
Remote command:
[SENSe:]DEMod:PAYLoad:MAX on page 127
MAC FCS
Enable FCS check of payload either with 2 octet or with 4 octet format.
Remote command:
[SENSe:]DEMod:MAC:FCS on page 128
Packet Configuration
Sets the scrambled timestamp sequence (STS) packet configuration:
●
0: STS off
●
1: SYNC/SFD, STS, PHR/PSDU
●
2: SYNC/SFD, PHR/PSDU, STS
●
3: SYNC/SFD, STS
STS settings are only available in "BPRF" or "HPRF" mode.
Remote command:
[SENSe:]DEMod:STS:FORMat on page 127
Active Segment Length
If the packet format is not "0", the active STS segment length can be defined.
STS settings are only available in "BPRF" or "HPRF" mode.
Remote command:
[SENSe:]DEMod:STS:LENGth on page 128
Active Segments
If the packet format is not "0", the number of active STS segments can be defined.
STS settings are only available in "BPRF" or "HPRF" mode.
Remote command:
[SENSe:]DEMod:STS:SEGMents on page 128
Gap (x4 chips)
Gap between payload and STS section in packet configuration 2.
Remote command:
[SENSe:]DEMod:STS:GAP on page 128
4.7 Evaluation range
Access: "Overview" > "Evaluation Range"
The evaluation range dialog of the R&S VSE provides functionality to configure the
number of analyzed UWB packets.
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4.7.1 Analysis
Configuration
Evaluation range
To select different evaluation modes, see Chapter 5.3, "Evaluation modes",
on page 55.
Default Group and Selected Packet..............................................................................47
Range............................................................................................................................47
Group............................................................................................................................ 47
Count.............................................................................................................................47
Default Group and Selected Packet
Sets the default group to be analyzed for all displays and the number of the selected
packet within the group. For each display, a group and selected packet which is different to the default configuration can be set in the result config dialog.
Remote command:
[SENSe:]EVALuation:PACKet:GROup on page 129
[SENSe:]EVALuation:PACKet:NUMBer on page 129
Range
Sets the type of range used for evaluating packets.
Remote command:
[SENSe:]EVALuation:STATistics:RANGe on page 130
Group
Sets the statistics group to be analyzed, i.e. packets of which group should be counted
up.
Remote command:
[SENSe:]EVALuation:STATistics:GROup on page 130
Count
Sets the number of packets to capture
Remote command:
[SENSe:]EVALuation:STATistics:COUNt on page 129
[SENSe:]EVALuation:PACKet:COUNt? on page 130
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4.7.2 Group Config
Configuration
Evaluation range
Figure 4-2: Exemplary configuration of an "even" group
Figure 4-3: Exemplary configuration of an "odd" group
In specific measurement scenarios, such as a triggered time of flight (TOF) measurement, the packets in the capture buffer originate from different DUTs or signal generators. For the analysis, i.e. just the packets from the DUT and not from the signal generator are of interest. The user defined groups define which packet belongs to which
group. For the analysis, all windows of the application show just the packets and the
statistics for a certain group. This is the "Default Group" defined in the Analysis dialog.
For each display/table, a group and also a selected packet within that group can be
defined which deviates from the "Default Group". This can be done in the Result Config
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4.8 Result configuration
4.8.1 Result config
Configuration
Result configuration
dialog. The default group is "All Packets" which contains all packets. This group cannot
be edited.
You can define an arbitrary number of groups, each with a different combination of
packets belonging to that group.
Remote command:
[SENSe:]EVALuation:FILTer<n>:SET on page 131
[SENSe:]EVALuation:FILTer<n>:NAME on page 131
[SENSe:]EVALuation:FILTer<n>:DELete on page 131
Access: "Meas" > "Result Config"
For each window, i.e. trace display or table, the group of the shown packets is either
the default configuration (see Chapter 4.7, "Evaluation range", on page 46) or user
defined. Also the selected packet in the group can be specified for each window. To
change these values for several user configured windows at a time, several windows
can be linked using the "Link to Window" functionality.
User defined displays show the group and the selected packet in a second line below
the header:
For histogram traces, the number of bins and the x-scale (+/-) can be configured in
picoseconds for time jitter traces and in degrees for phase jitter traces.
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4.8.2 Result summary
Configuration
Result configuration
Remote command:
SENSe[:WINDow<n>]:DISPlay:RWConfig on page 132
SENSe[:WINDow<n>]:DISPlay:RWConfig:CONFigure on page 132
SENSe[:WINDow<n>]:DISPlay:RWConfig:GROup on page 132
SENSe[:WINDow<n>]:DISPlay:RWConfig:LINK on page 132
SENSe[:WINDow<n>]:DISPlay:RWConfig:PACKet on page 133
SENSe[:WINDow<n>]:DISPlay:CONFig:BINS on page 133
SENSe[:WINDow<n>]:DISPlay:CONFig:SCALe on page 133
Defines the values to be displayed in the Result Summary display.
4.8.3 Packet insight
Defines the values to be displayed in the Packet Insights display.
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5 Analysis
5.1 Configuring traces
Analysis
Configuring traces
The UWB application provides several tools to get more information about the results.
Most of these tools are similar to those available in the spectrum application. For more
information about these tools, refer to the R&S VSE user manual.
● Configuring traces...................................................................................................51
● Using markers.........................................................................................................54
● Evaluation modes....................................................................................................55
The UWB application provides several tools to configure and evaluate traces.
● Selecting the trace information................................................................................51
● Exporting traces...................................................................................................... 52
5.1.1 Selecting the trace information
Access: [TRACE] > "Trace Config" > "Traces"
Each result display contains one or several traces specific to the corresponding result
type.
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Configuring traces
Trace Mode
Defines the update mode for subsequent traces.
Clear Write
Max Hold
Min Hold
Average
View
Blank
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:MODE on page 134
Detector
Defines the trace detector to be used for trace analysis.
Auto
Positive Peak
Negative Peak
Average
RMS
Remote command:
[SENSe:][WINDow<n>:]DETector<t>[:FUNCtion] on page 134
Overwrite mode (default): the trace is overwritten by each measurement.
The maximum value is determined over several measurements and
displayed. The R&S VSE saves each trace point in the trace memory
only if the new value is greater than the previous one.
The minimum value is determined from several measurements and
displayed. The R&S VSE saves each trace point in the trace memory
only if the new value is lower than the previous one.
The average is formed over several measurements.
The current contents of the trace memory are frozen and displayed.
Removes the selected trace from the display.
The detector for the respective trace is selected automatically.
The positive detector displays the maximum level that has been
detected during the measurement.
The negative peak detector displays the minimum level that has been
detected during the measurement.
The average detector displays the average value that has been
detected during the measurement.
The RMS detector displays the RMS average value that has been
detected during the measurement.
Analysis
5.1.2 Exporting traces
Access: [TRACE] > "Trace Config" > "Trace / Data Export"
The functionality to export traces is similar to the Spectrum application. When you
export a trace, the R&S VSE writes the trace data into an ASCII file. You can use the
exported data for further evaluation in other programs like a spreadsheet.
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Analysis
Configuring traces
Selecting data to export................................................................................................ 53
Include Instrument & Measurement Settings ............................................................... 53
Decimal Separator ....................................................................................................... 53
Export Trace..................................................................................................................53
Selecting data to export
The "Window(s)" toggle button selects the data that you want to export.
"All Visible" exports all traces in all result displays that are currently visible.
"Current" exports the traces in the currently selected (highlighted blue) result display.
If you export data from the currently selected result display, you can also select if you
want to export all traces in that result display, or a single trace only from the "Trace(s) /
Columns" dropdown menu.
Remote command:
MMEMory:STORe<n>:TRACe on page 135
Include Instrument & Measurement Settings
Includes additional instrument and measurement settings in the header of the export
file for result data.
Remote command:
FORMat:DEXPort:HEADer on page 135
Decimal Separator
Defines the decimal separator for floating-point numerals for the data export/import
files. Evaluation programs require different separators in different languages.
Remote command:
FORMat:DEXPort:DSEParator on page 136
Export Trace
The "Export Trace To ASCII File" button opens a dialog box to select a directory and
file name for the ASCII file.
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5.2 Using markers
Analysis
Using markers
The results are output in the same order as they are displayed on the screen: window
by window, trace by trace, and table row by table row.
Note: Secure user mode.
In secure user mode, settings that are stored on the instrument are stored to volatile
memory, which is restricted to 256 MB. Thus, a "memory limit reached" error can occur
although the hard disk indicates that storage space is still available.
To store data permanently, select an external storage location such as a USB memory
device.
For details, see "Protecting Data Using the Secure User Mode" in the "Data Management" section of the R&S VSE base software user manual.
Remote command:
MMEMory:STORe<n>:TRACe on page 135
The UWB application provides up to 16 markers in most result displays.
For more information on the available marker types and the usage, refer to the
R&S VSE user manual.
● Configuring markers................................................................................................54
5.2.1 Configuring markers
Access: "Overview" > "Result Config" > "Marker Settings"
The "Marker Settings" contain settings that apply to all markers or have a general
effect on marker functionality.
Marker Table Display ....................................................................................................54
Marker Info ...................................................................................................................54
Marker Table Display
Defines how the marker information is displayed.
"On"
"Off"
"Auto"
Remote command:
DISPlay[:WINDow<n>]:MTABle on page 141
Displays the marker information in a table in a separate area beneath
the diagram.
No separate marker table is displayed.
(Default) If more than two markers are active, the marker table is dis-
played automatically.
Marker Info
Turns the marker information displayed in the diagram on and off.
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5.3 Evaluation modes
Analysis
Evaluation modes
Remote command:
DISPlay[:WINDow<n>]:MINFo[:STATe] on page 141
The R&S VSE-K149 application shows the following behaviour in different run modes:
Run Mode Range Covered Packets in Statistics
Run Single One Capture Statistics over all packets in one
capture
Run Single Fixed Packet Count Statistics over user defined num-
ber of packets, either in one capture or in multiple captures, if capture time is too short for all packets.
Run Continuous One Capture Statistics over all captured pack-
ets in all captures
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6 Remote commands for HRP UWB mea-
Remote commands for HRP UWB measurements
Introduction
surements
The following commands are required to perform measurements in the HRP UWB
application in a remote environment. The R&S VSE must already be set up for remote
operation in a network as described in the base unit manual.
Note that basic tasks that are also performed in the base unit in the same way are not
described here. For a description of such tasks, see the R&S VSE User Manual.
In particular, this includes:
●
Managing Settings and Results, i.e. storing and loading settings and result data
●
Basic instrument configuration, e.g. checking the system configuration, customizing
the screen layout, or configuring networks and remote operation
●
Using the common status registers (specific status registers for HRP UWB mea-
surements are not used)
After a short introduction, the tasks specific to the HRP UWB application are described
here:
● Introduction............................................................................................................. 56
● Common suffixes.................................................................................................... 61
● Activating HRP UWB measurements......................................................................61
● Configuring the result display..................................................................................62
● Retrieving results.................................................................................................... 62
● Configuring the measurement.................................................................................69
● Configuring standard traces..................................................................................133
● Working with markers............................................................................................136
6.1 Introduction
Commands are program messages that a controller (e.g. a PC) sends to the instrument or software. They operate its functions ('setting commands' or 'events') and
request information ('query commands'). Some commands can only be used in one
way, others work in two ways (setting and query). If not indicated otherwise, the commands can be used for settings and queries.
The syntax of a SCPI command consists of a header and, usually, one or more parameters. To use a command as a query, you have to append a question mark after the
last header element, even if the command contains a parameter.
A header contains one or more keywords, separated by a colon. Header and parameters are separated by a "white space" (ASCII code 0 to 9, 11 to 32 decimal, e.g. blank).
If there is more than one parameter for a command, they are separated by a comma
from one another.
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6.1.1 Conventions used in descriptions
Remote commands for HRP UWB measurements
Introduction
Only the most important characteristics that you need to know when working with SCPI
commands are described here. For a more complete description, refer to the user
manual of the R&S VSE.
Remote command examples
Note that some remote command examples mentioned in this general introduction are
possibly not supported by this particular application.
The following conventions are used in the remote command descriptions:
●
Command usage
If not specified otherwise, commands can be used both for setting and for querying
parameters.
If a command can be used for setting or querying only, or if it initiates an event, the
usage is stated explicitly.
●
Parameter usage
If not specified otherwise, a parameter can be used to set a value and it is the
result of a query.
Parameters required only for setting are indicated as Setting parameters.
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.
●
Conformity
Commands that are taken from the SCPI standard are indicated as SCPI con-
firmed. All commands used by the R&S VSE follow the SCPI syntax rules.
●
Asynchronous commands
A command which does not automatically finish executing before the next com-
mand starts executing (overlapping command) is indicated as an Asynchronous
command.
●
Reset values (*RST)
Default parameter values that are used directly after resetting the instrument (*RST
command) are indicated as *RST values, if available.
●
Default unit
The default unit is used for numeric values if no other unit is provided with the
parameter.
●
Manual operation
If the result of a remote command can also be achieved in manual operation, a link
to the description is inserted.
6.1.2 Long and short form
The keywords have a long and a short form. You can use either the long or the short
form, but no other abbreviations of the keywords.
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6.1.3 Numeric suffixes
Remote commands for HRP UWB measurements
Introduction
The short form is emphasized in uppercase letters. Note however, that this emphasis
only serves the purpose to distinguish the short from the long form in the manual. For
the instrument, the case does not matter.
Example:
SENSe:FREQuency:CENTer is the same as SENS:FREQ:CENT.
Some keywords have a numeric suffix if the command can be applied to multiple
instances of an object. In that case, the suffix selects a particular instance (e.g. a measurement window).
Numeric suffixes are indicated by angular brackets (<n>) next to the keyword.
If you do not quote a suffix for keywords that support one, a 1 is assumed.
Example:
DISPlay[:WINDow<1...4>]:ZOOM:STATe enables the zoom in a particular measurement window, selected by the suffix at WINDow.
DISPlay:WINDow4:ZOOM:STATe ON refers to window 4.
6.1.4 Optional keywords
Some keywords are optional and are only part of the syntax because of SCPI compliance. You can include them in the header or not.
If an optional keyword has a numeric suffix and you need to use the suffix, you have to
include the optional keyword. Otherwise, the suffix of the missing keyword is assumed
to be the value 1.
Optional keywords are emphasized with square brackets.
Example:
Without a numeric suffix in the optional keyword:
[SENSe:]FREQuency:CENTer is the same as FREQuency:CENTer
With a numeric suffix in the optional keyword:
DISPlay[:WINDow<1...4>]:ZOOM:STATe
DISPlay:ZOOM:STATe ON enables the zoom in window 1 (no suffix).
DISPlay:WINDow4:ZOOM:STATe ON enables the zoom in window 4.
6.1.5 Alternative keywords
A vertical stroke indicates alternatives for a specific keyword. You can use both keywords to the same effect.
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6.1.6 SCPI parameters
Remote commands for HRP UWB measurements
Introduction
Example:
[SENSe:]BANDwidth|BWIDth[:RESolution]
In the short form without optional keywords, BAND 1MHZ would have the same effect
as BWID 1MHZ.
Many commands feature one or more parameters.
If a command supports more than one parameter, they are separated by a comma.
Example:
LAYout:ADD:WINDow Spectrum,LEFT,MTABle
Parameters can have different forms of values.
● Numeric values....................................................................................................... 59
● Boolean...................................................................................................................60
● Character data........................................................................................................ 60
● Character strings.....................................................................................................61
● Block data............................................................................................................... 61
6.1.6.1 Numeric values
Numeric values can be entered in any form, i.e. with sign, decimal point or exponent.
For physical quantities, you can also add the unit. If the unit is missing, the command
uses the basic unit.
Example:
With unit: SENSe:FREQuency:CENTer 1GHZ
Without unit: SENSe:FREQuency:CENTer 1E9 would also set a frequency of 1 GHz.
Values exceeding the resolution of the instrument are rounded up or down.
If the number you have entered is not supported (e.g. for discrete steps), the command
returns an error.
Instead of a number, you can also set numeric values with a text parameter in special
cases.
●
MIN/MAX
Defines the minimum or maximum numeric value that is supported.
●
DEF
Defines the default value.
●
UP/DOWN
Increases or decreases the numeric value by one step. The step size depends on
the setting. Sometimes, you can customize the step size with a corresponding
command.
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Remote commands for HRP UWB measurements
Introduction
Querying numeric values
When you query numeric values, the system returns a number. For physical quantities,
it applies the basic unit (e.g. Hz for frequencies). The number of digits after the decimal
point depends on the type of numeric value.
Example:
Setting: SENSe:FREQuency:CENTer 1GHZ
Query: SENSe:FREQuency:CENTer? would return 1E9
Sometimes, numeric values are returned as text.
●
INF/NINF
Infinity or negative infinity. Represents the numeric values 9.9E37 or -9.9E37.
●
NAN
Not a number. Represents the numeric value 9.91E37. NAN is returned if errors
occur.
6.1.6.2 Boolean
Boolean parameters represent two states. The "on" state (logically true) is represented
by "ON" or the numeric value 1. The "off" state (logically untrue) is represented by
"OFF" or the numeric value 0.
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
6.1.6.3 Character data
Character data follows the syntactic rules of keywords. You can enter text using a short
or a long form. For more information, see Chapter 6.1.2, "Long and short form",
on page 57.
Querying text parameters
When you query text parameters, the system returns its short form.
Example:
Setting: SENSe:BANDwidth:RESolution:TYPE NORMal
Query: SENSe:BANDwidth:RESolution:TYPE? would return NORM
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6.1.6.4 Character strings
6.1.6.5 Block data
Remote commands for HRP UWB measurements
Activating HRP UWB measurements
Strings are alphanumeric characters. They have to be in straight quotation marks. You
can use a single quotation mark ( ' ) or a double quotation mark ( " ).
Example:
INSTRument:DELete 'Spectrum'
Block data is a format which is suitable for the transmission of large amounts of data.
The ASCII character # introduces the data block. The next number indicates how many
of the following digits describe the length of the data block. The data bytes follow. During the transmission of these data bytes, all end or other control signs are ignored until
all bytes are transmitted. #0 specifies a data block of indefinite length. The use of the
indefinite format requires an NL^END message to terminate the data block. This format
is useful when the length of the transmission is not known or if speed or other considerations prevent segmentation of the data into blocks of definite length.
6.2 Common suffixes
In the R&S VSE HRP UWB application, the following common suffixes are used in
remote commands:
Table 6-1: Common suffixes used in remote commands in the R&S VSE HRP UWB application
Suffix Value range Description
<m> 1 to 16 Marker
<n> 1 to 16 Window (in the currently selected channel)
<t> 1 to 4 Trace
<li> 1 to 8 Limit line
6.3 Activating HRP UWB measurements
HRP UWB measurements require a special application in the R&S VSE. The common
commands for configuring and controlling measurement channels, as well as blocks
and sequences, are also used in the R&S VSE HRP UWB application.
They are described in the R&S VSE base software user manual.
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6.4 Configuring the result display
6.4.1 Restoring the default configuration (Preset)
Remote commands for HRP UWB measurements
Retrieving results
The following commands are required to configure the screen display in a remote environment.
● Restoring the default configuration (Preset)............................................................62
● Layout configuration in R&S VSE-K149..................................................................62
SYSTem:PRESet:CHANnel[:EXEC]................................................................................... 62
SYSTem:PRESet:CHANnel[:EXEC]
This command restores the default software settings in the current channel.
Use INST:SEL to select the channel.
Example:
Usage: Event
Manual operation: See "Preset Channel" on page 23
INST:SEL 'Spectrum2'
Selects the channel for "Spectrum2".
SYST:PRES:CHAN:EXEC
Restores the factory default settings to the "Spectrum2" channel.
6.4.2 Layout configuration in R&S VSE-K149
LAYout:SELect <SelectedLayout>
Sets and queries the window layout. The layout number increases with a new release
of the R&S VSE-K149 application, if a new default layout is defined. This ensures
backwards compatibility for scripts that were created using a different layout in a previous version of the application.
Parameters:
<SelectedLayout>
Example:
LAY:SEL 1
6.5 Retrieving results
6.5.1 General
[SENSe:]CAPTure:COMPatible?........................................................................................63
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Retrieving results
[SENSe:]CAPTure:COMPatible? <ChannelNumber>
Checks if the analysis bandwidth is high enough to demodulate the selected UWB
channel in the signal capture dialog.
Query parameters:
<ChannelNumber> <numeric value>
Example:
Usage: Query only
6.5.2 Magnitude capture
The following remote commands provide functionality to query specific values from the
Magnitude Capture result display.
FETCh<n>:TRACe:HLIGht:STARt:ALL?
Returns the list of positions of the start of each burst in the magnitude capture trace in
window n (position values in seconds).
Suffix:
<n>
Return values:
<Result>
Example:
Usage: Query only
SENSe:CAPTure:COMPatible?
.
1..n
Window
FETC:TRAC:HLIG:STAR:ALL?
FETCh<n>:TRACe:HLIGht:STARt<l>?
Returns the position of the start of burst l in the magnitude capture trace in window n
(position value in seconds).
Suffix:
<n>
<l> 1..n
Return values:
<Result> <numeric value>
Example:
Usage: Query only
FETCh<n>:TRACe:HLIGht:STATe:ALL?
Returns the state of burst l in the magnitude capture trace in window n. The state can
be: SELECTED, OK.
.
1..n
Window
FETC2:TRAC:HLIG:STAR3?
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Retrieving results
Suffix:
<n>
Return values:
<Result>
Example:
Usage: Query only
FETCh<n>:TRACe:HLIGht:STATe<l>?
Returns the list of states of bursts l in the magnitude capture trace in window n. The
state can be: SELECTED, OK.
Suffix:
<n>
<l> 1..n
Return values:
<Result>
Example:
.
1..n
Window
FETC:TRAC:HLIG:STAT:ALL?
.
1..n
Window
FETC:TRAC:HLIG:STAT3?
Usage: Query only
FETCh<n>:TRACe:HLIGht:STOP:ALL?
Returns the list of positions of the end of each burst in the magnitude capture trace in
window n (position values in seconds).
Suffix:
<n>
Return values:
<Result>
Example:
Usage: Query only
FETCh<n>:TRACe:HLIGht:STOP<l>?
Returns the position of the end of burst l in the magnitude capture trace in window n
(position value in seconds).
Suffix:
<n>
.
1..n
Window
FETC:TRAC:HLIG:STOP:ALL?
.
1..n
Window
<l> 1..n
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Retrieving results
Return values:
<Result> <numeric value>
Example:
Usage: Query only
6.5.3 Packet insights
The following remote commands provide functionality to query specific values from the
Packet Insights result display.
FETCh<n>:PACKet:ALL?
FETCh<n>:PACKet:DATA:A?
FETCh<n>:PACKet:DATA:A:APACkets?
FETCh<n>:PACKet:DATA:CONStraint:LENGth?
FETCh<n>:PACKet:DATA:CONStraint:LENGth:APACkets?
FETCh<n>:PACKet:DATA:DATA:LENGth?
FETCh<n>:PACKet:DATA:DATA:LENGth:APACkets?
FETCh<n>:PACKet:DATA:DATA:RATE?
FETCh<n>:PACKet:DATA:DATA:RATE:APACkets?
FETCh<n>:PACKet:DATA:RANGing:BIT?
FETCh<n>:PACKet:DATA:RANGing:BIT:APACkets?
FETCh<n>:PACKet:DATA:SECDed?
FETCh<n>:PACKet:DATA:SECDed:APACkets?
FETCh<n>:PACKet:SYNC:CODE:INDex?
FETCh<n>:PACKet:SYNC:CODE:INDex:APACkets?
FETCh<n>:PACKet:SYNC:CODE:LENGth?
FETCh<n>:PACKet:SYNC:CODE:LENGth:APACkets?
FETCh<n>:PACKet:SYNC:DELTa:LENGth?
FETCh<n>:PACKet:SYNC:DELTa:LENGth:APACkets?
FETCh<n>:PACKet:SYNC:SYNC:LENGth?
FETCh<n>:PACKet:SYNC:SYNC:LENGth:APACkets?
FETCh<n>:PACKet:DATA:CBURst?
FETCh<n>:PACKet:DATA:CBURst:APACkets?
FETCh<n>:PACKet:DATA:HBURsts?
FETCh<n>:PACKet:DATA:HBURsts:APACkets?
FETCh<n>:PACKet:DATA:MAC:FCS?
FETCh<n>:PACKet:DATA:MAC:FCS:APACkets?
FETCh<n>:PACKet:DATA:REServed:BIT?
FETCh<n>:PACKet:DATA:REServed:BIT:APACkets?
FETCh<n>:PACKet:SYNC:SFD?
FETCh<n>:PACKet:SYNC:SFD:APACkets?
FETCh<n>:PACKet:DATA:PAYLoad?
Returns the payload of the packet in hexadecimal format.
FETC2:TRAC:HLIG:STOP3?
In accordance with IEEE 802.15.4, the LSB of each octet of the payload is output first.
Suffix:
<n>
.
Use <n> to select a "Packet Insights" result display.
Window
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6.5.4 Result summary
Remote commands for HRP UWB measurements
Retrieving results
Return values:
<Result>
Usage: Query only
Manual operation: See "Packet Insights" on page 14
The following remote commands provide functionality to query specific values from the
Result Summary result display.
FETCh<n>:SUMMary:ALL?
FETCh<n>:SUMMary:EVM:PHR:LEVel?
FETCh<n>:SUMMary:EVM:PHR:LEVel:AVERage?
FETCh<n>:SUMMary:EVM:PHR:LEVel:MAXimum?
FETCh<n>:SUMMary:EVM:PHR:LEVel:MINimum?
FETCh<n>:SUMMary:EVM:PHR:NRMSe?
FETCh<n>:SUMMary:EVM:PHR:NRMSe:AVERage?
FETCh<n>:SUMMary:EVM:PHR:NRMSe:MAXimum?
FETCh<n>:SUMMary:EVM:PHR:NRMSe:MINimum?
FETCh<n>:SUMMary:EVM:PSDU:LEVel?
FETCh<n>:SUMMary:EVM:PSDU:LEVel:AVERage?
FETCh<n>:SUMMary:EVM:PSDU:LEVel:MAXimum?
FETCh<n>:SUMMary:EVM:PSDU:LEVel:MINimum?
FETCh<n>:SUMMary:EVM:PSDU:NRMSe?
FETCh<n>:SUMMary:EVM:PSDU:NRMSe:AVERage?
FETCh<n>:SUMMary:EVM:PSDU:NRMSe:MAXimum?
FETCh<n>:SUMMary:EVM:PSDU:NRMSe:MINimum?
FETCh<n>:SUMMary:EVM:SHR:NRMSe?
FETCh<n>:SUMMary:EVM:SHR:NRMSe:AVERage?
FETCh<n>:SUMMary:EVM:SHR:NRMSe:MAXimum?
FETCh<n>:SUMMary:EVM:SHR:NRMSe:MINimum?
FETCh<n>:SUMMary:EVM:STS:LEVel?
FETCh<n>:SUMMary:EVM:STS:LEVel:AVERage?
FETCh<n>:SUMMary:EVM:STS:LEVel:MAXimum?
FETCh<n>:SUMMary:EVM:STS:LEVel:MINimum?
FETCh<n>:SUMMary:EVM:STS:NRMSe?
FETCh<n>:SUMMary:EVM:STS:NRMSe:AVERage?
FETCh<n>:SUMMary:EVM:STS:NRMSe:MAXimum?
FETCh<n>:SUMMary:EVM:STS:NRMSe:MINimum?
FETCh<n>:SUMMary:FREQuency:CHIP:ERRor?
FETCh<n>:SUMMary:FREQuency:CHIP:ERRor:AVERage?
FETCh<n>:SUMMary:FREQuency:CHIP:ERRor:MAXimum?
FETCh<n>:SUMMary:FREQuency:CHIP:ERRor:MINimum?
FETCh<n>:SUMMary:FREQuency:OFFSet:HZ?
FETCh<n>:SUMMary:FREQuency:OFFSet:HZ:AVERage?
FETCh<n>:SUMMary:FREQuency:OFFSet:HZ:MAXimum?
FETCh<n>:SUMMary:FREQuency:OFFSet:HZ:MINimum?
FETCh<n>:SUMMary:FREQuency:OFFSet:PPM?
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Retrieving results
FETCh<n>:SUMMary:FREQuency:OFFSet:PPM:AVERage?
FETCh<n>:SUMMary:FREQuency:OFFSet:PPM:MAXimum?
FETCh<n>:SUMMary:FREQuency:OFFSet:PPM:MINimum?
FETCh<n>:SUMMary:JITTer:CHIP?
FETCh<n>:SUMMary:JITTer:CHIP:AVERage?
FETCh<n>:SUMMary:JITTer:CHIP:MAXimum?
FETCh<n>:SUMMary:JITTer:CHIP:MINimum?
FETCh<n>:SUMMary:JITTer:SYMBol?
FETCh<n>:SUMMary:JITTer:SYMBol:AVERage?
FETCh<n>:SUMMary:JITTer:SYMBol:MAXimum?
FETCh<n>:SUMMary:JITTer:SYMBol:MINimum?
FETCh<n>:SUMMary:POWer:PSDU:MEAN?
FETCh<n>:SUMMary:POWer:PSDU:MEAN:AVERage?
FETCh<n>:SUMMary:POWer:PSDU:MEAN:MAXimum?
FETCh<n>:SUMMary:POWer:PSDU:MEAN:MINimum?
FETCh<n>:SUMMary:POWer:PSDU:PEAK?
FETCh<n>:SUMMary:POWer:PSDU:PEAK:AVERage?
FETCh<n>:SUMMary:POWer:PSDU:PEAK:MAXimum?
FETCh<n>:SUMMary:POWer:PSDU:PEAK:MINimum?
FETCh<n>:SUMMary:POWer:SHR:MEAN?
FETCh<n>:SUMMary:POWer:SHR:MEAN:AVERage?
FETCh<n>:SUMMary:POWer:SHR:MEAN:MAXimum?
FETCh<n>:SUMMary:POWer:SHR:MEAN:MINimum?
FETCh<n>:SUMMary:POWer:SHR:PEAK?
FETCh<n>:SUMMary:POWer:SHR:PEAK:AVERage?
FETCh<n>:SUMMary:POWer:SHR:PEAK:MAXimum?
FETCh<n>:SUMMary:POWer:SHR:PEAK:MINimum?
FETCh<n>:SUMMary:PULSe:MASK:PASSed?
FETCh<n>:SUMMary:PULSe:MASK:PASSed:AVERage?
FETCh<n>:SUMMary:PULSe:MASK:PASSed:MAXimum?
FETCh<n>:SUMMary:PULSe:MASK:PASSed:MINimum?
FETCh<n>:SUMMary:PULSe:RISE:MONotonic?
FETCh<n>:SUMMary:PULSe:RISE:MONotonic:AVERage?
FETCh<n>:SUMMary:PULSe:RISE:MONotonic:MAXimum?
FETCh<n>:SUMMary:PULSe:RISE:MONotonic:MINimum?
FETCh<n>:SUMMary:RANGing:RMARker:LOCation?
FETCh<n>:SUMMary:SPECtrum:MASK:PASSed?
FETCh<n>:SUMMary:SPECtrum:MASK:PASSed:AVERage?
FETCh<n>:SUMMary:SPECtrum:MASK:PASSed:MAXimum?
FETCh<n>:SUMMary:SPECtrum:MASK:PASSed:MINimum?
FETCh<n>:SUMMary:SPECtrum:MAXimum:POWer?
FETCh<n>:SUMMary:SPECtrum:MAXimum:POWer:AVERage?
FETCh<n>:SUMMary:SPECtrum:MAXimum:POWer:MAXimum?
FETCh<n>:SUMMary:SPECtrum:MAXimum:POWer:MINimum?
FETCh<n>:SUMMary:XCORr:MLOBe:MINimum:WIDTh?
FETCh<n>:SUMMary:XCORr:MLOBe:MINimum:WIDTh:AVERage?
FETCh<n>:SUMMary:XCORr:MLOBe:MINimum:WIDTh:MAXimum?
FETCh<n>:SUMMary:XCORr:MLOBe:MINimum:WIDTh:MINimum?
FETCh<n>:SUMMary:XCORr:MLOBe:PEAK?
FETCh<n>:SUMMary:XCORr:MLOBe:PEAK:AVERage?
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FETCh<n>:SUMMary:XCORr:MLOBe:PEAK:MAXimum?
FETCh<n>:SUMMary:XCORr:MLOBe:PEAK:MINimum?
FETCh<n>:SUMMary:XCORr:MLOBe:WIDTh?
FETCh<n>:SUMMary:XCORr:MLOBe:WIDTh:AVERage?
FETCh<n>:SUMMary:XCORr:MLOBe:WIDTh:MAXimum?
FETCh<n>:SUMMary:XCORr:MLOBe:WIDTh:MINimum?
FETCh<n>:SUMMary:XCORr:MLOBe:WIDTh:PASSed?
FETCh<n>:SUMMary:XCORr:MLOBe:WIDTh:PASSed:AVERage?
FETCh<n>:SUMMary:XCORr:MLOBe:WIDTh:PASSed:MAXimum?
FETCh<n>:SUMMary:XCORr:MLOBe:WIDTh:PASSed:MINimum?
FETCh<n>:SUMMary:XCORr:NMSE?
FETCh<n>:SUMMary:XCORr:NMSE:AVERage?
FETCh<n>:SUMMary:XCORr:NMSE:MAXimum?
FETCh<n>:SUMMary:XCORr:NMSE:MINimum?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:AVERage?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:LOCation?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:LOCation:AVERage?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:LOCation:MAXimum?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:LOCation:MINimum?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:MAXimum?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:MINimum?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:PASSed?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:PASSed:AVERage?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:PASSed:MAXimum?
FETCh<n>:SUMMary:XCORr:SLOBe:PEAK:PASSed:MINimum?
FETCh<n>:SUMMary:POWer:STS:MEAN?
FETCh<n>:SUMMary:POWer:STS:MEAN:AVERage?
FETCh<n>:SUMMary:POWer:STS:MEAN:MAXimum?
FETCh<n>:SUMMary:POWer:STS:MEAN:MINimum?
FETCh<n>:SUMMary:POWer:STS:PEAK?
FETCh<n>:SUMMary:POWer:STS:PEAK:AVERage?
FETCh<n>:SUMMary:POWer:STS:PEAK:MAXimum?
FETCh<n>:SUMMary:POWer:STS:PEAK:MINimum?
FETCh<n>:SUMMary:PULSe:RISE:TIME?
FETCh<n>:SUMMary:PULSe:RISE:TIME:AVERage?
FETCh<n>:SUMMary:PULSe:RISE:TIME:MAXimum?
FETCh<n>:SUMMary:PULSe:RISE:TIME:MINimum?
FETCh<n>:SUMMary:PULSe:RISE:TIME:PASSed?
FETCh<n>:SUMMary:PULSe:RISE:TIME:PASSed:AVERage?
FETCh<n>:SUMMary:PULSe:RISE:TIME:PASSed:MAXimum?
FETCh<n>:SUMMary:PULSe:RISE:TIME:PASSed:MINimum?
FETCh<n>:SUMMary:RANGing:SRMarker<m>:LOCation?
Suffix:
<n>
.
Window
Retrieving results
<m> Marker
Return values:
<Result> <numeric value>
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Configuring the measurement
Example:
Usage: Query only
FETCh:SUMMary:RANGing:SRMarker3:LOCation?
6.6 Configuring the measurement
The following commands are required to configure the measurement in a remote environment.
● Input/output settings................................................................................................69
● Frontend configuration.......................................................................................... 106
● Triggering measurements......................................................................................115
● Configuring data aquisition....................................................................................123
● Configuring burst/sync.......................................................................................... 125
● Configuring demodulation..................................................................................... 127
● Configuring evaluation range................................................................................ 129
● Configuring results................................................................................................ 131
6.6.1 Input/output settings
The R&S VSE can analyze signals from different input sources (such as RF, power
sensors etc.) and provide various types of output (such as noise or trigger signals).
The following commands are required to configure data input and output.
● Configuring data input.............................................................................................69
6.6.1.1 Configuring data input
The following commands are required to configure data input.
Data output is described in the R&S VSE Base Software User Manual.
● RF input...................................................................................................................69
● Using external mixers..............................................................................................81
● Remote commands for external frontend control....................................................89
● Working with power sensors................................................................................... 98
RF input
Remote commands exclusive to configuring RF input:
INPut<ip>:ATTenuation:PROTection[:STATe].......................................................................70
INPut<ip>:ATTenuation:PROTection:RESet.........................................................................70
INPut<ip>:COUPling<ant>................................................................................................ 71
INPut<ip>:DPATh.............................................................................................................71
INPut<ip>:FILE:ZPADing.................................................................................................. 72
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Configuring the measurement
INPut<ip>:FILTer:HPASs[:STATe]....................................................................................... 72
INPut<ip>:FILTer:YIG[:STATe]............................................................................................73
INPut<ip>:IMPedance<ant>.............................................................................................. 73
INPut<ip>:PRESelection:SET............................................................................................74
INPut<ip>:PRESelection[:STATe]....................................................................................... 74
INPut<ip>:RF:CAPMode...................................................................................................74
INPut<ip>:RF:CAPMode:IQ:SRATe....................................................................................75
INPut<ip>:RF:CAPMode:WAVeform:SRATe........................................................................ 75
INPut<ip>:SELect.............................................................................................................76
INPut<ip>:TYPE.............................................................................................................. 76
INSTrument:BLOCk:CHANnel[:SETTings]:SOURce<si>.......................................................77
INSTrument:BLOCk:CHANnel[:SETTings]:SOURce<si>:CONFig..........................................77
INSTrument:BLOCk:CHANnel[:SETTings]:SOURce<si>:TYPE.............................................78
SYSTem:COMMunicate:RDEVice:OSCilloscope[:STATe]......................................................78
SYSTem:COMMunicate:RDEVice:OSCilloscope:TCPip........................................................79
SYSTem:COMMunicate:RDEVice:OSCilloscope:PSMode[:STATe]........................................ 79
SYSTem:COMMunicate:RDEVice:OSCilloscope:SRATe.......................................................80
SYSTem:COMMunicate:RDEVice:OSCilloscope:VDEVice?..................................................80
SYSTem:COMMunicate:RDEVice:OSCilloscope:VFIRmware?..............................................80
INPut<ip>:ATTenuation:PROTection[:STATe] <State>
This command turns the availability of attenuation levels of 10 dB or less on and off.
Suffix:
<ip>
.
1 | 2
irrelevant
Parameters:
<State> ON | OFF | 1 | 0
ON | 1
Attenuation levels of 10 dB or less are not allowed to protect the
RF input connector of the connected instrument.
OFF | 0
Attenuation levels of 10 dB or less are not blocked. Provide
appropriate protection for the RF input connector of the connected instrument yourself.
*RST: 1
Example:
INP:ATT:PROT ON
Turns on the input protection.
INPut<ip>:ATTenuation:PROTection:RESet [<DeviceName>]
This command resets the attenuator and reconnects the RF input with the input mixer
for the connected instrument after an overload condition occurred and the protection
mechanism intervened. The error status bit (bit 3 in the STAT:QUES:POW status register) and the INPUT OVLD message in the status bar are cleared.
The command works only if the overload condition has been eliminated first.
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Configuring the measurement
For details on the protection mechanism, see the instrument's documentation.
Suffix:
<ip>
Setting parameters:
<DeviceName> string
Example:
Manual operation: See "10 dB Minimum Attenuation" on page 29
INPut<ip>:COUPling<ant>
This command selects the coupling type of the RF input.
If an external frontend is active, the coupling is automatically set to AC.
Suffix:
<ip>
.
1 | 2
For R&S FSW85 models with two RF input connectors:
1: Input 1 (1 mm [RF Input] connector)
2: Input 2 (1.85 mm [RF2 Input] connector)
For all other models:
irrelevant
Name of the instrument for which the RF input protection is to be
reset.
INP:ATT:PROT:RES 'MyDevice'
<CouplingType>
.
1 | 2
irrelevant
<ant> Input source (for MIMO measurements only)
Parameters:
<CouplingType> AC | DC
AC
AC coupling
DC
DC coupling
*RST: AC
Example:
Manual operation: See " Input Coupling " on page 25
INPut<ip>:DPATh <DirectPath>
Enables or disables the use of the direct path for frequencies close to 0 Hz.
If an external frontend is active, the direct path is always used.
INP:COUP DC
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Configuring the measurement
Suffix:
<ip>
Parameters:
<DirectPath> AUTO | OFF
Example:
Manual operation: See " Direct Path " on page 25
INPut<ip>:FILE:ZPADing <State>
Enables or disables zeropadding for input from an I/Q data file that requires resampling. For resampling, a number of samples are required due to filter settling. These
samples can either be taken from the provided I/Q data, or the software can add the
required number of samples (zeros) at the beginning and end of the file.
Suffix:
<ip>
.
1 | 2
irrelevant
AUTO | 1
(Default) the direct path is used automatically for frequencies
close to 0 Hz.
OFF | 0
The analog mixer path is always used.
INP:DPAT OFF
.
1 | 2
irrelevant
Parameters:
<State> ON | OFF | 0 | 1
OFF | 0
Switches the function off
ON | 1
Switches the function on
*RST: 0
Example:
Manual operation: See "Zero Padding" on page 31
INPut<ip>:FILTer:HPASs[:STATe] <State>
Activates an additional internal high-pass filter for RF input signals from 1 GHz to
3 GHz. This filter is used to remove the harmonics of the connected instrument to measure the harmonics for a DUT, for example.
This function requires an additional high-pass filter hardware option.
(Note: for RF input signals outside the specified range, the high-pass filter has no
effect. For signals with a frequency of approximately 4 GHz upwards, the harmonics
are suppressed sufficiently by the YIG-preselector, if available.)
INP:FILE:ZPAD ON
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Configuring the measurement
Suffix:
<ip>
Parameters:
<State> ON | OFF | 0 | 1
Example:
Manual operation: See " High Pass Filter 1 to 3 GHz " on page 26
INPut<ip>:FILTer:YIG[:STATe] <State>
Enables or disables the YIG filter.
Suffix:
<ip>
.
1 | 2
irrelevant
OFF | 0
Switches the function off
ON | 1
Switches the function on
*RST: 0
INP:FILT:HPAS ON
Turns on the filter.
.
1 | 2
irrelevant
Parameters:
<State> ON | OFF | 0 | 1
Example:
Manual operation: See " YIG-Preselector " on page 26
INPut<ip>:IMPedance<ant> <Impedance>
This command selects the nominal input impedance of the RF input. In some applications, only 50 Ω are supported.
Suffix:
<ip>
<ant> Input source (for MIMO measurements only)
Parameters:
<Impedance> 50 | 75
Example:
INP:FILT:YIG OFF
Deactivates the YIG-preselector.
.
1 | 2
irrelevant
*RST: 50 Ω
Default unit: OHM
INP:IMP 75
Manual operation: See " Impedance " on page 25
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Configuring the measurement
INPut<ip>:PRESelection:SET <Mode>
This command selects the preselector mode.
The command is available with the optional preselector.
Suffix:
<ip>
Parameters:
<Mode> NARRow
Manual operation: See "Preselector Mode" on page 28
INPut<ip>:PRESelection[:STATe] <State>
This command turns the preselector on and off.
Suffix:
<ip>
.
1 | 2
irrelevant
Performs a measurement by automatically applying all available
combinations of low and high pass filters consecutively. These
combinations all have a narrow bandwidth.
WIDE
Performs a measurement by automatically applying all available
bandpass filters consecutively. The bandpass filters have a wide
bandwidth.
.
1 | 2
irrelevant
Manual operation: See "Preselector State" on page 28
INPut<ip>:RF:CAPMode <CAPMode>
Determines how data from an oscilloscope is input to the R&S VSE software.
This command is only available for connected oscilloscopes.
Suffix:
<ip>
Parameters:
<CAPMode> AUTO | IQ | WAVeform
.
1 | 2
irrelevant
IQ
The measured waveform is converted to I/Q data directly on the
R&S oscilloscope (requires option K11), and input to the
R&S VSE software as I/Q data.
WAVeform
The data is input in its original waveform format and converted
to I/Q data in the R&S VSE software. No additional options are
required on the R&S oscilloscope.
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Configuring the measurement
AUTO
Uses "I/Q" mode when possible, and "Waveform" only when
required by the application (e.g. Pulse measurement).
*RST: IQ
Example:
Manual operation: See "Capture Mode" on page 26
INPut<ip>:RF:CAPMode:IQ:SRATe <SamplingRate>
Determines the sample rate used by the connected oscilloscope for I/Q capture mode
(see INPut<ip>:RF:CAPMode on page 74).
This setting is only available if an R&S oscilloscope is used to obtain the input data.
Suffix:
<ip>
Parameters:
<SamplingRate> 20 GHz | 40 GHz
INP:RF:CAPM WAV
.
1 | 2
irrelevant
No other sample rate values are allowed.
20 GHz
Achieves a higher decimation gain, but reduces the record
length by half.
Only available for R&S oscilloscope models that support a sample rate of 20 GHz (see data sheet).
40 GHz
Provides a maximum sample rate.
Only available for R&S RTP13/RTP16 models that support a
sample rate of 40 GHz (see data sheet).
*RST:
Default unit: HZ
20 GHz
Example:
Manual operation: See "Oscilloscope Sample Rate" on page 27
INPut<ip>:RF:CAPMode:WAVeform:SRATe <SamplingRate>
Determines the sample rate used by the connected oscilloscope for waveform capture
mode (see INPut<ip>:RF:CAPMode on page 74).
This setting is only available if an R&S oscilloscope is used to obtain the input data,
either directly or via the R&S FSW.
INP:RF:CAPM IQ
INP:RF:CAPM:IQ:SRAT 40 GHZ
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Configuring the measurement
Suffix:
<ip>
Parameters:
<SamplingRate> 10 GHz | 20 GHz
Example:
Manual operation: See "Oscilloscope Sample Rate" on page 27
.
1 | 2
irrelevant
No other sample rate values are allowed.
10 GHz
Default ; provides maximum record length
20 GHz
Achieves a higher decimation gain, but reduces the record
length by half.
Only available for R&S oscilloscope models that support a sample rate of 20 GHz (see data sheet).
For R&S oscilloscopes with an analysis bandwidth of 4 GHz or
larger, a sample rate of 20 GHZ is always used.
*RST:
Default unit: HZ
INP:RF:CAPM WAV
INP:RF:CAPM:WAVE:SRAT 10000000
10 GHz
INPut<ip>:SELect <Source>
This command selects the signal source for measurements, i.e. it defines which connector is used to input data to the R&S VSE.
Suffix:
<ip>
Parameters:
<Source> RF
Manual operation: See "Input Type (Instrument / File)" on page 24
INPut<ip>:TYPE <Input>
.
1 | 2
For R&S FSW85 models with two RF input connectors:
1: Input 1 (1 mm [RF Input] connector)
2: Input 2 (1.85 mm [RF2 Input] connector)
For all other models:
irrelevant
Radio Frequency ("RF INPUT" connector)
FIQ
I/Q data file
*RST: RF
The command selects the input path for R&S FSW85 models.
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Configuring the measurement
Suffix:
<ip>
Parameters:
<Input> INPUT1
Example: //Select input path
Manual operation: See "Input 1 / Input 2" on page 25
INSTrument:BLOCk:CHANnel[:SETTings]:SOURce<si> <Type>
Selects an instrument or a file as the source of input provided to the channel.
.
1 | 2
For R&S FSW85 models with two RF input connectors:
1: Input 1 (1 mm [RF Input] connector)
2: Input 2 (1.85 mm [RF2 Input] connector)
For all other models:
irrelevant
Selects RF input 1.
INPUT2
Selects RF input 2.
*RST: INPUT1
INP:TYPE INPUT1
Suffix:
<si>
Parameters:
<Type> FILE | DEVice | NONE
Manual operation: See "Input Type (Instrument / File)" on page 24
INSTrument:BLOCk:CHANnel[:SETTings]:SOURce<si>:CONFig <Port>
Configures the port to be used for input on the selected instrument.
This command is only available if an oscilloscope is connected.
Suffix:
<si>
.
1 to 99
LTE-MIMO only: input source number
FILE
A loaded file is used for input.
DEVice
A configured device provides input for the measurement
NONE
No input source defined.
.
1 to 99
LTE-MIMO only: input source number
Parameters:
<Port>
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Configuring the measurement
INSTrument:BLOCk:CHANnel[:SETTings]:SOURce<si>:TYPE <Source>
Configures the source of input to be used from the selected instrument.
Not all input sources are supported by all R&S VSE applications.
Suffix:
<si>
Parameters:
<Source> RF
.
1 to 99
LTE-MIMO only: input source number
Radio Frequency ("RF INPUT" connector)
'Channel 1' | 'Channel 2' | 'Channel 3' | 'Channel 4'
Oscilloscope input channel 1, 2, 3, or 4
'Channel 1,2 (I+Q)'
I/Q data provided by oscilloscope input channels 1 and 2 (for
oscilloscopes with 2 channels only)
'Channel 1,3 (I+Q)' | 'Channel 2,4 (I+Q)'
I/Q data provided by oscilloscope input channels 1 and 3, or 2
and 4 (for oscilloscopes with 4 channels only)
'Channels 1-4 (diff. I+Q)'
Differential I/Q data provided by oscilloscope input channels (for
oscilloscopes with 4 channels only):
Channel 1: I (pos.)
Channel 2: Ī (neg.)
Channel 3: Q (pos.)
Channel 4: Ǭ (neg.)
'Channels 1,3 (Waveform)'
Waveform data provided by oscilloscope input channels 1 and 3
(for oscilloscopes with 2 channels only)
'Channels 2,4 (Waveform)'
Waveform data provided by oscilloscope input channels 2 and 4
(for oscilloscopes with 2 channels only)
'Channels 1-4 (Waveform)'
Waveform data provided by oscilloscope input channels 1 to 4
(for oscilloscopes with 4 channels only)
*RST:
RF
Example: INST:BLOC:CHAN:SOUR:TYPE 'Channel 2,4 (I+Q)'
I/Q data is provided by oscilloscope input channels 2 and 4
SYSTem:COMMunicate:RDEVice:OSCilloscope[:STATe] <State>
Activates the optional 2 GHz bandwidth extension (R&S FSW-B2000).
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Configuring the measurement
Note: Manual operation on the connected oscilloscope, or remote operation other than
by the R&S VSE, is not possible while the B2000 option is active.
Parameters:
<State> ON | OFF | 0 | 1
OFF | 0
Switches the function off
ON | 1
Switches the function on
Example:
Manual operation: See "B2000 State" on page 27
SYSTem:COMMunicate:RDEVice:OSCilloscope:TCPip <Address>
Defines the TCPIP address or computer name of the oscilloscope connected to the
R&S VSE via LAN.
Note: The IP address is maintained after a [PRESET], and is transferred between
applications.
Parameters:
<Address> computer name or IP address
Example:
Example:
Manual operation: See "Oscilloscope IP Address" on page 28
SYSTem:COMMunicate:RDEVice:OSCilloscope:PSMode[:STATe] <State>
Activates the use of the power splitter inserted between the "IF 2 GHZ OUT" connector
of the R&S VSE and the "CH1" and "CH3" input connectors of the oscilloscope. Note
that this mode requires an additional alignment with the power splitter.
SYST:COMM:RDEV:OSC ON
SYST:COMM:RDEV:OSC:TCP '192.0.2.0'
SYST:COMM:RDEV:OSC:TCP 'FSW43-12345'
For details see the R&S FSW I/Q Analyzer and I/Q Input User Manual
Parameters:
<State> ON | OFF | 0 | 1
OFF | 0
Switches the function off
ON | 1
Switches the function on
Example:
Manual operation: See "Oscilloscope Splitter Mode" on page 28
SYST:COMM:RDEV:OSC:PSM ON
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Configuring the measurement
SYSTem:COMMunicate:RDEVice:OSCilloscope:SRATe <Rate>
Determines whether the 10 GHz mode (default) or 20 GHz mode of the connected
oscilloscope is used. The 20 GHZ mode achieves a higher decimation gain, but
reduces the record length by half.
Parameters:
<Rate> 10 GHz | 20 GHz
No other sample rate values are allowed.
*RST: 10 GHz
Default unit: HZ
Example:
Manual operation: See "Oscilloscope Sample Rate" on page 27
SYSTem:COMMunicate:RDEVice:OSCilloscope:VDEVice?
Queries whether the connected instrument is supported by the 2 GHz bandwidth
extension option(B2000).
Return values:
<State> ON | OFF | 0 | 1
TRAC:IQ:SRAT?
//Result: 100000000
TRAC:IQ:RLEN?
//Result: 3128
SYST:COMM:RDEV:OSC:SRAT 20GHZ
TRAC:IQ:SRAT?
//Result: 200000000
TRAC:IQ:RLEN?
//Result: 1564
OFF | 0
Switches the function off
ON | 1
Switches the function on
Example:
Usage: Query only
SYSTem:COMMunicate:RDEVice:OSCilloscope:VFIRmware?
Queries whether the firmware on the connected oscilloscope is supported by the
2 GHz bandwidth extension (B2000) option.
Return values:
<State> ON | OFF | 0 | 1
SYST:COMM:RDEV:OSC:VDEV?
OFF | 0
Switches the function off
ON | 1
Switches the function on
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Configuring the measurement
Example:
SYST:COMM:RDEV:OSC:VFIR?
Usage: Query only
Using external mixers
The commands required to work with external mixers in a remote environment are
described here. Note that these commands require the connected instrument to have
an external mixer option installed and an external mixer to be connected to the connected instrument.
● Basic settings..........................................................................................................81
● Mixer settings..........................................................................................................82
● Programming example: working with an external mixer..........................................88
Basic settings
The basic settings concern general usage of an external mixer.
[SENSe:]MIXer<x>[:STATe]...............................................................................................81
[SENSe:]MIXer<x>:BIAS:HIGH..........................................................................................81
[SENSe:]MIXer<x>:BIAS[:LOW].........................................................................................82
[SENSe:]MIXer<x>:LOPower............................................................................................ 82
[SENSe:]MIXer<x>[:STATe] <State>
Activates or deactivates the use of a connected external mixer as input for the measurement. This command is only available if the optional External Mixer is installed and
an external mixer is connected.
Suffix:
<x>
.
1..n
irrelevant
Parameters:
<State> ON | OFF | 1 | 0
*RST: 0
Example:
MIX ON
[SENSe:]MIXer<x>:BIAS:HIGH <BiasSetting>
This command defines the bias current for the high (last) range.
This command is only available if the external mixer is active (see [SENSe:
]MIXer<x>[:STATe] on page 81).
Suffix:
<x>
.
1..n
irrelevant
Parameters:
<BiasSetting> *RST: 0.0 A
Default unit: A
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Configuring the measurement
[SENSe:]MIXer<x>:BIAS[:LOW] <BiasSetting>
This command defines the bias current for the low (first) range.
This command is only available if the external mixer is active (see [SENSe:
]MIXer<x>[:STATe] on page 81).
Suffix:
<x>
.
1..n
irrelevant
Parameters:
<BiasSetting> *RST: 0.0 A
Default unit: A
[SENSe:]MIXer<x>:LOPower
<Level>
This command specifies the LO level of the external mixer's LO port.
Suffix:
<x>
.
1..n
irrelevant
Parameters:
<Level> numeric value
Range: 13.0 dBm to 17.0 dBm
Increment: 0.1 dB
*RST: 15.5 dBm
Example:
MIX:LOP 16.0dBm
Mixer settings
The following commands are required to configure the band and specific mixer settings.
[SENSe:]MIXer<x>:FREQuency:HANDover........................................................................83
[SENSe:]MIXer<x>:FREQuency:STARt.............................................................................. 83
[SENSe:]MIXer<x>:FREQuency:STOP...............................................................................83
[SENSe:]MIXer<x>:HARMonic:BAND:PRESet.................................................................... 83
[SENSe:]MIXer<x>:HARMonic:BAND.................................................................................84
[SENSe:]MIXer<x>:HARMonic:HIGH:STATe....................................................................... 84
[SENSe:]MIXer<x>:HARMonic:HIGH[:VALue]..................................................................... 85
[SENSe:]MIXer<x>:HARMonic:TYPE................................................................................. 85
[SENSe:]MIXer<x>:HARMonic[:LOW]................................................................................ 85
[SENSe:]MIXer<x>:IF?..................................................................................................... 86
[SENSe:]MIXer<x>:LOSS:HIGH........................................................................................ 86
[SENSe:]MIXer<x>:LOSS:TABLe:HIGH..............................................................................86
[SENSe:]MIXer<x>:LOSS:TABLe[:LOW].............................................................................86
[SENSe:]MIXer<x>:LOSS[:LOW]....................................................................................... 87
[SENSe:]MIXer<x>:PORTs................................................................................................87
[SENSe:]MIXer<x>:RFOVerrange[:STATe].......................................................................... 87
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Configuring the measurement
[SENSe:]MIXer<x>:FREQuency:HANDover <Frequency>
This command defines the frequency at which the mixer switches from one range to
the next (if two different ranges are selected). The handover frequency for each band
can be selected freely within the overlapping frequency range.
This command is only available if the external mixer is active (see [SENSe:
]MIXer<x>[:STATe] on page 81).
Suffix:
<x>
Parameters:
<Frequency> Default unit: HZ
Example:
[SENSe:]MIXer<x>:FREQuency:STARt
This command sets or queries the frequency at which the external mixer band starts.
Suffix:
<x>
Example:
[SENSe:]MIXer<x>:FREQuency:STOP
.
1..n
irrelevant
MIX ON
Activates the external mixer.
MIX:FREQ:HAND 78.0299GHz
Sets the handover frequency to 78.0299 GHz.
.
1..n
irrelevant
MIX:FREQ:STAR?
Queries the start frequency of the band.
This command sets or queries the frequency at which the external mixer band stops.
Suffix:
<x>
Example:
[SENSe:]MIXer<x>:HARMonic:BAND:PRESet
This command restores the preset frequency ranges for the selected standard waveguide band.
Note: Changes to the band and mixer settings are maintained even after using the
[PRESET] function. Use this command to restore the predefined band ranges.
.
1..n
irrelevant
MIX:FREQ:STOP?
Queries the stop frequency of the band.
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Configuring the measurement
Suffix:
<x>
.
1..n
irrelevant
Example:
MIX:HARM:BAND:PRES
Presets the selected waveguide band.
[SENSe:]MIXer<x>:HARMonic:BAND <Band>
This command selects the external mixer band. The query returns the currently
selected band.
This command is only available if the external mixer is active (see [SENSe:
]MIXer<x>[:STATe] on page 81).
Suffix:
<x>
.
1..n
irrelevant
Parameters:
<Band> KA | Q | U | V | E | W | F | D | G | Y | J | USER
Standard waveguide band or user-defined band.
Table 6-2: Frequency ranges for pre-defined bands
Band Frequency start [GHz] Frequency stop [GHz]
KA (A) *) 26.5 40.0
Q 33.0 50.0
U 40.0 60.0
V 50.0 75.0
E 60.0 90.0
W 75.0 110.0
F 90.0 140.0
D 110.0 170.0
G 140.0 220.0
J 220.0 325.0
Y 325.0 500.0
USER 32.18
(default)
*) The band formerly referred to as "A" is now named "KA".
68.22
(default)
[SENSe:]MIXer<x>:HARMonic:HIGH:STATe <State>
This command specifies whether a second (high) harmonic is to be used to cover the
band's frequency range.
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Configuring the measurement
Suffix:
<x>
Parameters:
<State> ON | OFF
Example:
[SENSe:]MIXer<x>:HARMonic:HIGH[:VALue] <HarmOrder>
This command specifies the harmonic order to be used for the high (second) range.
Suffix:
<x>
Parameters:
<HarmOrder numeric value
Example:
.
1..n
*RST: ON
MIX:HARM:HIGH:STAT ON
.
1..n
irrelevant
Range: 2 to 128 (USER band); for other bands: see band
definition
MIX:HARM:HIGH:STAT ON
MIX:HARM:HIGH 3
[SENSe:]MIXer<x>:HARMonic:TYPE <OddEven>
This command specifies whether the harmonic order to be used should be odd, even,
or both.
Which harmonics are supported depends on the mixer type.
Suffix:
<x>
Parameters:
<OddEven> ODD | EVEN | EODD
Example:
[SENSe:]MIXer<x>:HARMonic[:LOW] <HarmOrder>
This command specifies the harmonic order to be used for the low (first) range.
Suffix:
<x>
.
1..n
irrelevant
ODD | EVEN | EODD
*RST: EVEN
MIX:HARM:TYPE ODD
.
1..n
irrelevant
Example:
MIX:HARM 3
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Configuring the measurement
[SENSe:]MIXer<x>:IF?
Queries the intermediate frequency currently used by the external mixer.
Suffix:
<x>
Example:
Example: See "Programming example: working with an external mixer"
Usage: Query only
[SENSe:]MIXer<x>:LOSS:HIGH <Average>
This command defines the average conversion loss to be used for the entire high (second) range.
Suffix:
<x>
Parameters:
<Average> Range: 0 to 100
Example:
.
1..n
irrelevant
MIX:IF?
on page 88.
.
1..n
*RST: 24.0 dB
Default unit: dB
MIX:LOSS:HIGH 20dB
[SENSe:]MIXer<x>:LOSS:TABLe:HIGH <FileName>
This command defines the conversion loss table to be used for the high (second)
range.
Suffix:
<x>
Setting parameters:
<FileName> String containing the path and name of the file, or the serial
Return values:
<FileName> As the result of a query, the actually used file is returned.
[SENSe:]MIXer<x>:LOSS:TABLe[:LOW] <FileName>
This command defines the file name of the conversion loss table to be used for the low
(first) range.
.
1..n
number of the external mixer whose file is required. The
R&S VSE automatically selects the correct cvl file for the current
IF. As an alternative, you can also select a user-defined conversion loss table (.acl file).
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Configuring the measurement
Suffix:
<x>
Parameters:
<FileName> String containing the path and name of the file, or the serial
Example:
[SENSe:]MIXer<x>:LOSS[:LOW] <Average>
This command defines the average conversion loss to be used for the entire low (first)
range.
Suffix:
<x>
Parameters:
<Average> Range: 0 to 100
.
1..n
number of the external mixer whose file is required. The
R&S VSE automatically selects the correct cvl file for the current
IF. As an alternative, you can also select a user-defined conversion loss table (.acl file).
MIX:LOSS:TABL '101567'
MIX:LOSS:TABL?
//Result:
'101567_MAG_6_B5000_3G5.B5G'
.
1..n
*RST: 24.0 dB
Default unit: dB
Example:
[SENSe:]MIXer<x>:PORTs <PortType>
This command selects the mixer type.
Suffix:
<x>
Parameters:
<PortType> 2 | 3
Example:
[SENSe:]MIXer<x>:RFOVerrange[:STATe] <State>
If enabled, the band limits are extended beyond "RF Start" and "RF Stop" due to the
capabilities of the used harmonics.
MIX:LOSS 20dB
.
1..n
irrelevant
2
Two-port mixer.
3
Three-port mixer.
*RST: 2
MIX:PORT 3
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Configuring the measurement
Suffix:
<x>
.
1..n
irrelevant
Parameters:
<State> ON | OFF | 1 | 0
*RST: 0
Programming example: working with an external mixer
This example demonstrates how to work with an external mixer in a remote environment. It is performed in the Spectrum application in the default layout configuration.
Note that without a real input signal and connected mixer, this measurement will not
return useful results.
//--------------Preparing the instrument -----------
//Reset the instrument
*RST
//Activate the use of the connected external mixer.
SENS:MIX ON
//----------- Configuring basic mixer behavior -------------
//Set the LO level of the mixer's LO port to 15 dBm.
SENS:MIX:LOP 15dBm
//Set the bias current to -1 mA .
SENS:MIX:BIAS:LOW -1mA
//----------- Configuring the mixer and band settings -------------
//Use band "V" to full possible range extent for assigned harmonic (6).
SENS:MIX:HARM:BAND V
SENS:MIX:RFOV ON
//Query the possible range
SENS:MIX:FREQ:STAR?
//Result: 47480000000 (47.48 GHz)
SENS:MIX:FREQ:STOP?
//Result: 138020000000 (138.02 GHz)
//Use a 3-port mixer type
SENS:MIX:PORT 3
//Split the frequency range into two ranges;
//range 1 covers 47.48 GHz GHz to 80 GHz; harmonic 6, average conv. loss of 20 dB
//range 2 covers 80 GHz to 138.02 GHz; harmonic 8, average conv.loss of 30 dB
SENS:MIX:HARM:TYPE EVEN
SENS:MIX:HARM:HIGH:STAT ON
SENS:MIX:FREQ:HAND 80GHz
SENS:MIX:HARM:LOW 6
SENS:MIX:LOSS:LOW 20dB
SENS:MIX:HARM:HIGH 8
SENS:MIX:LOSS:HIGH 30dB
//--------- Activating automatic signal identification functions -----------
//Activate both automatic signal identification functions.
SENS:MIX:SIGN ALL
//Use auto ID threshold of 8 dB.
SENS:MIX:THR 8dB
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Configuring the measurement
//--------------Performing the Measurement-----
//Select single sweep mode.
INIT:CONT OFF
//Initiate a basic frequency sweep and wait until the sweep has finished.
INIT;*WAI
//---------------Retrieving Results-------------
//Return the trace data for the input signal without distortions
//(default screen configuration)
TRAC:DATA? TRACE3
Remote commands for external frontend control
The following commands are available and required only if the optional external frontend control is installed on the connected instrument.
Further commands for external frontend control described elsewhere:
●
INPut:SELect RF; see INPut<ip>:SELect on page 76
●
[SENSe:]FREQuency:CENTer on page 107
●
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:
RLEVel<ant> on page 108
●
INPut<ip>:ATTenuation:AUTO on page 113
●
INPut<ip>:ATTenuation on page 113
● Commands for initial configuration..........................................................................89
● Commands for alignment........................................................................................96
Commands for initial configuration
The following commands are required when you initially set up a measurement with an
external frontend on the connected instrument.
[SENSe:]EFRontend<fe>:CONNection[:STATe]................................................................... 90
[SENSe:]EFRontend<fe>:CONNection:CONFig.................................................................. 90
[SENSe:]EFRontend<fe>:CONNection:CSTate?..................................................................91
[SENSe:]EFRontend<fe>:FREQuency:BAND:COUNt?........................................................ 91
[SENSe:]EFRontend<fe>:FREQuency:BAND<b>:LOWer?................................................... 92
[SENSe:]EFRontend<fe>:FREQuency:BAND<b>:UPPer?....................................................92
[SENSe:]EFRontend<fe>:FREQuency:BCONfig:AUTO........................................................92
[SENSe:]EFRontend<fe>:FREQuency:BCONfig:LIST?........................................................ 93
[SENSe:]EFRontend<fe>:FREQuency:BCONfig:SELect...................................................... 93
[SENSe:]EFRontend<fe>:FREQuency:IFRequency:SIDeband?............................................ 93
[SENSe:]EFRontend<fe>:FREQuency:IFRequency[:VALue]?...............................................94
[SENSe:]EFRontend<fe>:FREQuency:REFerence.............................................................. 94
[SENSe:]EFRontend<fe>:FREQuency:REFerence:LIST?.....................................................95
[SENSe:]EFRontend<fe>:IDN?..........................................................................................95
[SENSe:]EFRontend[:STATe].............................................................................................95
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Configuring the measurement
[SENSe:]EFRontend<fe>:CONNection[:STATe] <State>
Queries the external frontend connection state in the firmware.
Note: to query the physical connection state of the external frontend, use [SENSe:
]EFRontend<fe>:CONNection:CSTate? on page 91.
Suffix:
<fe>
Parameters:
<State> ON | OFF | 0 | 1
Example:
.
1
Connected frontend
OFF | 0
The connection to the frontend is deactivated temporarily. The
frontend is thus available for use elsewhere, for example by a
signal generator. The measurement settings on the R&S VSE
remain untouched.
ON | 1
Frontend connection enabled.
The frontend is reserved for exclusive use by the R&S VSE.
*RST: 0
//Global activation of external frontend
EFR ON
//Configure frontend
EFR:CONN:CONF "FE44S","123.456.789"
//Activate exclusive use of frontend by
R&S VSE.
EFR:CONN ON
[SENSe:]EFRontend<fe>:CONNection:CONFig <Type>, <IPAddress>[, <DeviceID>,
<SymbolicName>]
Configures the connection to the external frontend.
Suffix:
<fe>
Parameters:
<Type> "FE44S" | "FE50DTR"
<IPAddress> string in double quotes
.
1
Connected frontend
String in double quotes containing the type of frontend to be
connected.
The IP address or computer name of the frontend connected to
the R&S VSE via LAN. The IP address and computer name are
indicated on the electronic ink display on the side panel of the
frontend.
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Remote commands for HRP UWB measurements
Configuring the measurement
<DeviceID> string in double quotes
Unique device ID consisting of <type>-<serialnumber>
Not required or relevant for the R&S VSE.
<SymbolicName> string in double quotes
Symbolic name of the external frontend.
Not required or relevant for the R&S VSE.
Example:
[SENSe:]EFRontend<fe>:CONNection:CSTate?
Queries the status of the physical connection to the external frontend.
Suffix:
<fe>
Return values:
<State> ON | OFF | 0 | 1
Usage: Query only
//Global activation of external frontend
EFR ON
//Configure frontend
EFR:CONN:CONF "FE44S","123.456.789"
//Activate exclusive use of frontend by
R&S VSE.
EFR:CONN ON
.
1
Connected frontend
OFF | 0
Frontend not connected; connection error
ON | 1
Frontend connected
[SENSe:]EFRontend<fe>:FREQuency:BAND:COUNt?
Queries the number of frequency bands provided by the selected frontend.
Suffix:
<fe>
Return values:
<NoBands> integer
Example:
Usage: Query only
.
1
Connected frontend
Number of frequency bands
//Query number of frequency bands
EFR:FREQ:BAND:COUN?
//Result: 2
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Remote commands for HRP UWB measurements
Configuring the measurement
[SENSe:]EFRontend<fe>:FREQuency:BAND<b>:LOWer?
Queries the start of the frequency range supported by the frontend.
Suffix:
<fe>
<b> 1..n
Return values:
<StartFreq> Start frequency of the specified band
Example:
Usage: Query only
[SENSe:]EFRontend<fe>:FREQuency:BAND<b>:UPPer?
Queries the end of the frequency range supported by the frontend.
Suffix:
<fe>
<b> 1..n
.
1
Connected frontend
Band for multi-band frontends
//Query start frequency of second band
EFR:FREQ:BAND2:LOW?
//Result: 24000000000
.
1
Connected frontend
Band for multi-band frontends
Return values:
<StopFreq> End frequency of the specified band
Example:
Usage: Query only
[SENSe:]EFRontend<fe>:FREQuency:BCONfig:AUTO <State>
Determines whether the frequency band of the external frontend is configured automatically or manually.
Suffix:
<fe>
Parameters:
<State> ON | OFF | 0 | 1
//Query end frequency of second band
EFR:FREQ:BAND2:UPP?
//Result: 44000000000
.
1
Connected frontend
OFF | 0
Uses the frequency band configured by [SENSe:
]EFRontend<fe>:FREQuency:BCONfig:SELect
on page 93.
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Remote commands for HRP UWB measurements
Configuring the measurement
ON | 1
Configures the frequency band automatically
*RST: 1
Example: //Configures the use of the IF high band manually.
EFR:FREQ:BCON:AUTO 0
EFR:FREQ:BCON:SEL "IF HIGH"
[SENSe:]EFRontend<fe>:FREQuency:BCONfig:LIST?
Returns the intermediate frequency (output) range of the external frontend.
Suffix:
<fe>
Return values:
<BandConfigs> "IF LOW" | "IF HIGH"
Example:
Usage: Query only
[SENSe:]EFRontend<fe>:FREQuency:BCONfig:SELect <BandConfig>
Defines the intermediate frequency (output) range of the external frontend.
Suffix:
<fe>
Parameters:
<BandConfig> "IF LOW" | "IF HIGH"
.
1
Connected frontend
EFR:FREQ:BCON:LIST?
//Result: "IF HIGH", "IF LOW"
EFR:FREQ:BCON:SEL "IF HIGH"
.
1
Connected frontend
IF High
A higher intermediate frequency is used on the external frontend, resulting in a higher input frequency at the connected
instrument.
IF Low
A lower intermediate frequency is used on the external frontend,
resulting in a lower input frequency at the connected instrument.
Example:
[SENSe:]EFRontend<fe>:FREQuency:IFRequency:SIDeband?
Queries the currently used sideband for frequency conversion.
EFR:FREQ:BCON:LIST?
//Result: "IF HIGH", "IF LOW"
EFR:FREQ:BCON:SEL "IF HIGH"
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Remote commands for HRP UWB measurements
Configuring the measurement
Suffix:
<fe>
Return values:
<Sideband> "USB" | "LSB"
Example:
Usage: Query only
[SENSe:]EFRontend<fe>:FREQuency:IFRequency[:VALue]?
Queries the currently used intermediate frequency (IF) for frequency conversion.
Suffix:
<fe>
Return values:
<IFFrequency> numeric
.
1
Connected frontend
"USB"
Upper sideband
"LSB"
Lower sideband
EFR:FREQ:IFR?
EFR:FREQ:IFR:SID?
.
1
Connected frontend
Example:
Usage: Query only
[SENSe:]EFRontend<fe>:FREQuency:REFerence <Frequency>
Sets the reference frequency that is used for frequency conversion on the frontend.
Depending on the connected type of frontend, different values are available. To determine which reference levels are available, use [SENSe:]EFRontend<fe>:
FREQuency:REFerence:LIST? on page 95.
Suffix:
<fe>
Parameters:
<Frequency> Default unit: HZ
Example:
EFR:FREQ:IFR?
.
1
Connected frontend
//Query the available reference levels
EFR:FREQ:REF:LIST?
//Result: 10000000,640000000,1000000000
//Use 640 MHz reference
EFR:FREQ:REF 640000000
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Remote commands for HRP UWB measurements
Configuring the measurement
[SENSe:]EFRontend<fe>:FREQuency:REFerence:LIST?
Queries the available reference signals for the connected frontend type.
Suffix:
<fe>
Return values:
<References> 10000000 | 640000000 | 1000000000
Example:
Usage: Query only
[SENSe:]EFRontend<fe>:IDN?
Queries the device identifcation information (*IDN?) of the frontend.
Suffix:
<fe>
Return values:
<DevInfo> string without quotes
.
1
Connected frontend
//Query the available reference levels
EFR:FREQ:REF:LIST?
//Result: 10000000,640000000,1000000000
//Use 640 MHz reference
EFR:FREQ:REF 640000000
.
1
Connected frontend
Rohde&Schwarz,<device type>,<part number>/<serial number>,<firmware version>
Example:
Usage: Query only
[SENSe:]EFRontend[:STATe] <State>
Activates or deactivates the general use of an external frontend for the application.
Parameters:
<State> ON | OFF | 0 | 1
EFR:IDN?
//Result: Rohde&Schwarz,FE44S,
1234.5678K00/123456,0.8.0
OFF | 0
The frontend is disconnected. The application adapts the measurement settings to the common settings supported by the
R&S VSE.
ON | 1
The R&S VSE allows you to configure and connect an external
frontend for the application. The application adapts the available
measurement settings to the connected frontend. The channel
bar indicates "Inp: ExtFe".
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Remote commands for HRP UWB measurements
Configuring the measurement
*RST: 0
Example:
EFR ON
Commands for alignment
The following commands are required to align the connection after it has initially been
set up.
[SENSe:]EFRontend<fe>:ALIGnment<ch>?........................................................................96
[SENSe:]EFRontend<fe>:ALIGnment<ch>:DATE?.............................................................. 96
[SENSe:]EFRontend<fe>:ALIGnment<ch>:FILE..................................................................97
[SENSe:]EFRontend<fe>:ALIGnment<ch>:STATe............................................................... 97
[SENSe:]EFRontend<fe>:ALIGnment<ch>:TYPE................................................................ 97
[SENSe:]EFRontend<fe>:ALIGnment<ch>:VALid?.............................................................. 98
[SENSe:]EFRontend<fe>:ALIGnment<ch>?
Starts a selfalignment on the IF cable to the frontend and returns the result.
Suffix:
<fe>
.
1
Connected frontend
<ch> 1..n
Currently irrelevant
Return values:
<Result> 0
No error
>0
Error
*RST: 0
Usage: Query only
[SENSe:]EFRontend<fe>:ALIGnment<ch>:DATE?
Queries the date of the last alignment of the IF cable to the frontend.
Suffix:
<fe>
.
1
Connected frontend
<ch> 1..n
Currently irrelevant
Return values:
<Date> "YYYY-MM-DD"
Date of last alignment
Example:
EFR:ALIG:DATE?
//Result: "2020-12-16"
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Remote commands for HRP UWB measurements
Configuring the measurement
Usage: Query only
[SENSe:]EFRontend<fe>:ALIGnment<ch>:FILE <File>
Selects or queries the touchstone file that contains correction data to compensate for
signal losses in the cable occurring at different IF signal frequencies.
Suffix:
<fe>
<ch> 1..n
Parameters:
<File> string in double quotes
Example:
[SENSe:]EFRontend<fe>:ALIGnment<ch>:STATe <State>
Activates correction of the IF signal due to cable loss from the frontend to the analyzer.
Specify the file with correction data using [SENSe:]EFRontend<fe>:
ALIGnment<ch>:FILE on page 97.
Suffix:
<fe>
.
1
Connected frontend
Currently irrelevant
Path and file name of the correction data file. The file must be in
s2p format.
If the specified file is not found or does not have the correct format, an error message is returned (-256, "File name not
found", -150, "String data error").
EFR:ALIG:FILE "FE44S.s2p"
.
1
Connected frontend
<ch> 1..n
Currently irrelevant
Parameters:
<State> ON | OFF | 0 | 1
OFF | 0
Switches the function off
ON | 1
Switches the function on
*RST: 0
[SENSe:]EFRontend<fe>:ALIGnment<ch>:TYPE <Type>
Selects the type of frequency correction for the IF cable from the frontend to the analyzer.
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Remote commands for HRP UWB measurements
Configuring the measurement
Suffix:
<fe>
<ch> 1..n
Parameters:
<Type> FILE | ADJustment
[SENSe:]EFRontend<fe>:ALIGnment<ch>:VALid?
Queries whether the correction data file is valid.
Suffix:
<fe>
.
1
Connected frontend
Currently irrelevant
FILE
Frequency correction using the file specified with [SENSe:
]EFRontend<fe>:ALIGnment<ch>:FILE on page 97.
ADJustment
Frequency correction using self-alignment data, see [SENSe:
]EFRontend<fe>:ALIGnment<ch>? on page 96.
.
1
Connected frontend
<ch> 1..n
Currently irrelevant
Return values:
<Result> 0 | 1
0
The file is not valid.
For .s2p file correction: format incorrect or current IF-frequency
(of ext. FE) + demodulation bandwidth is not covered in frequency range of .s2p file.
For selfalignment correction: selfalignment failed or has not
been performed.
1
The file is valid.
Example:
Usage: Query only
Working with power sensors
The following commands describe how to work with power sensors.
These commands require the use of a Rohde & Schwarz power sensor. For a list of
supported sensors, see the data sheet.
EFR:ALIG:FILE "FE44S.s2p"
EFR:ALIG:VAL?
● Configuring power sensors..................................................................................... 99
● Configuring power sensor measurements............................................................ 100
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Remote commands for HRP UWB measurements
Configuring the measurement
Configuring power sensors
SYSTem:COMMunicate:RDEVice:PMETer<p>:CONFigure:AUTO[:STATe]............................. 99
SYSTem:COMMunicate:RDEVice:PMETer<p>:COUNt?.......................................................99
SYSTem:COMMunicate:RDEVice:PMETer<p>:DEFine........................................................ 99
SYSTem:COMMunicate:RDEVice:PMETer<p>:CONFigure:AUTO[:STATe] <State>
This command turns automatic assignment of a power sensor to the power sensor
index on and off.
Suffix:
<p>
.
Power sensor index
Parameters:
<State> ON | OFF | 0 | 1
*RST: 1
Example:
SYST:COMM:RDEV:PMET:CONF:AUTO OFF
SYSTem:COMMunicate:RDEVice:PMETer<p>:COUNt?
This command queries the number of power sensors currently connected to the
R&S VSE.
Suffix:
<p>
.
Power sensor index
Return values:
<NumberSensors> Number of connected power sensors.
Example:
SYST:COMM:RDEV:PMET:COUN?
Usage: Query only
SYSTem:COMMunicate:RDEVice:PMETer<p>:DEFine <Placeholder>, <Type>,
<Interface>, <SerialNo>
This command assigns the power sensor with the specified serial number to the
selected power sensor index (configuration).
The query returns the power sensor type and serial number of the sensor assigned to
the specified index.
Suffix:
<p>
.
Power sensor index
Parameters:
<Placeholder> Currently not used
<Type> Detected power sensor type, e.g. "NRP-Z81".
<Interface> Interface the power sensor is connected to; always "USB"
<SerialNo> Serial number of the power sensor assigned to the specified
index
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Remote commands for HRP UWB measurements
Configuring the measurement
Example:
SYST:COMM:RDEV:PMET2:DEF '','NRP-Z81','',
'123456'
Assigns the power sensor with the serial number '123456' to the
configuration "Power Sensor 2".
SYST:COMM:RDEV:PMET2:DEF?
Queries the sensor assigned to "Power Sensor 2".
Result:
'','NRP-Z81','USB','123456'
The NRP-Z81 power sensor with the serial number '123456' is
assigned to the "Power Sensor 2".
Configuring power sensor measurements
CALibration:PMETer<p>:ZERO:AUTO ONCE................................................................... 100
CALCulate<n>:PMETer<p>:RELative[:MAGNitude]............................................................101
CALCulate<n>:PMETer<p>:RELative[:MAGNitude]:AUTO ONCE....................................... 101
CALCulate<n>:PMETer<p>:RELative:STATe.....................................................................101
FETCh:PMETer<p>?...................................................................................................... 102
READ:PMETer<p>?....................................................................................................... 102
[SENSe:]PMETer<p>:DCYCle[:STATe]............................................................................. 102
[SENSe:]PMETer<p>:DCYCle:VALue...............................................................................102
[SENSe:]PMETer<p>:FREQuency................................................................................... 103
[SENSe:]PMETer<p>:FREQuency:LINK........................................................................... 103
[SENSe:]PMETer<p>:MTIMe...........................................................................................103
[SENSe:]PMETer<p>:MTIMe:AVERage:COUNt.................................................................104
[SENSe:]PMETer<p>:MTIMe:AVERage[:STATe]................................................................ 104
[SENSe:]PMETer<p>:ROFFset[:STATe]............................................................................104
[SENSe:]PMETer<p>:SOFFset........................................................................................ 105
[SENSe:]PMETer<p>[:STATe]..........................................................................................105
[SENSe:]PMETer<p>:UPDate[:STATe]..............................................................................105
UNIT<n>:PMETer<p>:POWer..........................................................................................106
UNIT<n>:PMETer<p>:POWer:RATio................................................................................ 106
CALibration:PMETer<p>:ZERO:AUTO ONCE
This command zeroes the power sensor.
Note that you have to disconnect the signals from the power sensor input before you
start to zero the power sensor. Otherwise, results are invalid.
Suffix:
<p>
Example:
.
Power sensor index
CAL:PMET2:ZERO:AUTO ONCE;*WAI
Starts zeroing the power sensor 2 and delays the execution of
further commands until zeroing is concluded.
Usage: Event
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