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R&S®FSW-K149
HRP UWB Measurement Application
User Manual
(;ÝZ;2)
1179421102
Version 03
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This manual applies to the following R&S®FSW models with firmware version 5.10 and later:
●
R&S®FSW8 (1331.5003K08 / 1312.8000K08)
●
R&S®FSW13 (1331.5003K13 / 1312.8000K13)
●
R&S®FSW26 (1331.5003K26 / 1312.8000K26)
●
R&S®FSW43 (1331.5003K43 / 1312.8000K43)
●
R&S®FSW50 (1331.5003K50 / 1312.8000K50)
●
R&S®FSW67 (1331.5003K67 / 1312.8000K67)
●
R&S®FSW85 (1331.5003K85 / 1312.8000K85)
The following firmware options are described:
●
R&S FSW-K149 (1350.6930.02)
© 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.
1179.4211.02 | Version 03 | R&S®FSW-K149
The following abbreviations are used throughout this manual: R&S®FSW is abbreviated as R&S FSW.
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R&S®FSW-K149
1 Preface.................................................................................................... 7
1.1 About this manual.........................................................................................................7
1.2 Documentation overview..............................................................................................7
1.2.1 Getting started manual....................................................................................................7
1.2.2 User manuals and help................................................................................................... 8
1.2.3 Service manual............................................................................................................... 8
1.2.4 Instrument security procedures.......................................................................................8
1.2.5 Printed safety instructions............................................................................................... 8
1.2.6 Data sheets and brochures............................................................................................. 9
1.2.7 Release notes and open-source acknowledgment (OSA).............................................. 9
1.2.8 Application notes, application cards, white papers, etc...................................................9
Contents
Contents
1.3 Conventions used in the documentation....................................................................9
1.3.1 Typographical conventions..............................................................................................9
1.3.2 Conventions for procedure descriptions........................................................................10
1.3.3 Notes on screenshots................................................................................................... 10
2 Welcome to the HRP UWB application...............................................11
2.1 Starting the HRP UWB application............................................................................ 11
2.2 Understanding the display information.................................................................... 11
3 Measurements and result displays.................................................... 14
3.1 Evaluation methods for HRP UWB............................................................................ 14
4 Configuration........................................................................................24
4.1 Configuration overview.............................................................................................. 24
4.2 Input and frontend settings........................................................................................25
4.2.1 Input source settings..................................................................................................... 25
4.2.1.1 Radio frequency input................................................................................................... 26
4.2.1.2 Settings for input from I/Q data files..............................................................................28
4.2.2 Output settings.............................................................................................................. 29
4.2.3 Frequency settings........................................................................................................33
4.2.4 Amplitude settings.........................................................................................................34
4.2.5 Scaling.......................................................................................................................... 37
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4.3 Trigger settings........................................................................................................... 39
4.4 Data acquisition.......................................................................................................... 44
4.5 Burst/Sync................................................................................................................... 45
4.6 Demodulation.............................................................................................................. 47
4.7 Evaluation range......................................................................................................... 49
4.7.1 Analysis.........................................................................................................................50
4.7.2 Group Config.................................................................................................................51
4.8 Result configuration................................................................................................... 52
4.8.1 Result config................................................................................................................. 52
4.8.2 Result summary............................................................................................................ 53
4.8.3 Packet insight................................................................................................................54
5 Analysis................................................................................................ 55
Contents
5.1 Configuring traces...................................................................................................... 55
5.1.1 Selecting the trace information......................................................................................55
5.1.2 Exporting traces............................................................................................................ 56
5.2 Using markers............................................................................................................. 58
5.2.1 Configuring markers......................................................................................................58
5.3 Evaluation modes....................................................................................................... 59
6 Remote commands for HRP UWB measurements............................60
6.1 Introduction................................................................................................................. 60
6.1.1 Conventions used in descriptions................................................................................. 61
6.1.2 Long and short form...................................................................................................... 61
6.1.3 Numeric suffixes............................................................................................................62
6.1.4 Optional keywords.........................................................................................................62
6.1.5 Alternative keywords..................................................................................................... 62
6.1.6 SCPI parameters...........................................................................................................63
6.1.6.1 Numeric values............................................................................................................. 63
6.1.6.2 Boolean......................................................................................................................... 64
6.1.6.3 Character data.............................................................................................................. 64
6.1.6.4 Character strings...........................................................................................................65
6.1.6.5 Block data..................................................................................................................... 65
6.2 Common suffixes........................................................................................................ 65
6.3 Activating HRP UWB measurements........................................................................ 65
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6.4 Configuring the result display................................................................................... 69
6.4.1 General window commands..........................................................................................70
6.4.2 Working with windows in the display.............................................................................71
6.4.3 Layout configuration in R&S FSW-K149....................................................................... 77
6.5 Retrieving results........................................................................................................77
6.5.1 General......................................................................................................................... 77
6.5.2 Magnitude capture........................................................................................................ 78
6.5.3 Packet insights.............................................................................................................. 80
6.5.4 Result summary............................................................................................................ 81
6.6 Configuring the measurement................................................................................... 84
6.6.1 Input/output settings......................................................................................................84
6.6.1.1 RF input.........................................................................................................................84
6.6.1.2 Input from I/Q data files.................................................................................................88
Contents
6.6.1.3 Configuring the outputs................................................................................................. 90
6.6.2 Frontend configuration.................................................................................................. 92
6.6.2.1 Frequency..................................................................................................................... 92
6.6.2.2 Amplitude settings.........................................................................................................93
6.6.2.3 Scaling.......................................................................................................................... 96
6.6.2.4 Configuring the attenuation........................................................................................... 99
6.6.3 Triggering measurements........................................................................................... 101
6.6.3.1 Configuring the triggering conditions...........................................................................101
6.6.3.2 Configuring the trigger output......................................................................................106
6.6.4 Configuring data aquisition..........................................................................................109
6.6.5 Configuring burst/sync.................................................................................................112
6.6.6 Configuring demodulation............................................................................................113
6.6.7 Configuring evaluation range.......................................................................................115
6.6.8 Configuring results.......................................................................................................118
6.7 Configuring standard traces.................................................................................... 120
6.8 Working with markers...............................................................................................123
6.8.1 Using markers............................................................................................................. 123
6.8.2 Using delta markers.................................................................................................... 125
6.8.3 Configuring markers....................................................................................................127
6.8.4 Positioning markers.....................................................................................................128
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6.8.5 Positioning delta markers............................................................................................130
Contents
List of Remote Commands (UWB)....................................................133
Index....................................................................................................140
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1 Preface
1.1 About this manual
Preface
Documentation overview
This R&S FSW 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 FSW 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 FSW 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 FSW 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 FSW HRP UWB application Measurements
Remote commands required to configure and perform R&S FSW 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 FSW 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 Documentation overview
This section provides an overview of the R&S FSW user documentation. Unless specified otherwise, you find the documents on the R&S FSW product page at:
www.rohde-schwarz.com/manual/FSW
1.2.1 Getting started manual
Introduces the R&S FSW and describes how to set up and start working with the product. Includes basic operations, typical measurement examples, and general information, e.g. safety instructions, etc.
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1.2.2 User manuals and help
Preface
Documentation overview
A printed version is delivered with the instrument. A PDF version is available for download on the Internet.
Separate user manuals are provided for the base unit and the firmware applications:
●
Base unit manual
Contains the description of all instrument modes and functions. It also provides an
introduction to remote control, a complete description of the remote control commands with programming examples, and information on maintenance, instrument
interfaces and error messages. Includes the contents of the getting started manual.
●
Firmware application manual
Contains the description of the specific functions of a firmware application, including remote control commands. Basic information on operating the R&S FSW is not
included.
The contents of the user manuals are available as help in the R&S FSW. The help
offers quick, context-sensitive access to the complete information for the base unit and
the firmware applications.
All user manuals are also available for download or for immediate display on the Internet.
1.2.3 Service manual
Describes the performance test for checking the rated specifications, module replacement and repair, firmware update, troubleshooting and fault elimination, and contains
mechanical drawings and spare part lists.
The service manual is available for registered users on the global Rohde & Schwarz
information system (GLORIS):
https://gloris.rohde-schwarz.com
1.2.4 Instrument security procedures
Deals with security issues when working with the R&S FSW in secure areas. It is available for download on the Internet.
1.2.5 Printed safety instructions
Provides safety information in many languages. The printed document is delivered with
the product.
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1.2.6 Data sheets and brochures
1.2.7 Release notes and open-source acknowledgment (OSA)
Preface
Conventions used in the documentation
The data sheet contains the technical specifications of the R&S FSW. It also lists the
firmware applications and their order numbers, and optional accessories.
The brochure provides an overview of the instrument and deals with the specific characteristics.
See www.rohde-schwarz.com/brochure-datasheet/FSW
The release notes list new features, improvements and known issues of the current
firmware version, and describe the firmware installation.
The open-source acknowledgment document provides verbatim license texts of the
used open source software.
See www.rohde-schwarz.com/firmware/FSW
1.2.8 Application notes, application cards, white papers, etc.
These documents deal with special applications or background information on particular topics.
See www.rohde-schwarz.com/application/FSW
1.3 Conventions used in the documentation
1.3.1 Typographical conventions
The following text markers are used throughout this documentation:
Convention Description
"Graphical user interface elements"
[Keys] Key and knob names are enclosed by square brackets.
Filenames, commands,
program code
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.
Input Input to be entered by the user is displayed in italics.
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1.3.2 Conventions for procedure descriptions
Preface
Conventions used in the documentation
Convention Description
Links Links that you can click are displayed in blue font.
"References" References to other parts of the documentation are enclosed by quota-
tion marks.
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.
1.3.3 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
Understanding the display information
The R&S FSW-K149 is a firmware application that adds functionality to perform High
Rate Pulse Repetition Frequency (HRP) Ultrawideband (UWB) measurements with the
R&S FSW.
The R&S FSW 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 FSW 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 FSW. It is
activated by creating a new measurement channel in HRP UWB mode.
To activate the HRP UWB application
1. Press the [MODE] key on the front panel of the R&S FSW.
A dialog box opens that contains all operating modes and applications currently
available on your R&S FSW.
2. Select the "HRP UWB" item.
The R&S FSW opens a new measurement channel for the HRP UWB application.
2.2 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.
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Welcome to the HRP UWB application
Understanding the display information
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 FSW HRP UWB application, the R&S FSW 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
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 FSW Base Software User Manual.
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Welcome to the HRP UWB application
Understanding the display information
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 FSW 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 FSW 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 FSW 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......................................................................... 14
The following evaluation methods can be selected for HRP UWB measurements.
Chip Phase Jitter...........................................................................................................14
Chip Time Jitter.............................................................................................................15
Correlated Pulse........................................................................................................... 15
Magnitude Capture........................................................................................................16
Marker Table................................................................................................................. 16
Packet Insights..............................................................................................................17
Packet Spectrum...........................................................................................................18
Pulse............................................................................................................................. 19
Result Summary............................................................................................................19
Symbol Phase Jitter...................................................................................................... 22
Symbol Time Jitter.........................................................................................................23
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
(see LAYout:ADD[:WINDow]? on page 71)
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
(see LAYout:ADD[:WINDow]? on page 71)
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.
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Measurements and result displays
Evaluation methods for HRP UWB
Remote command:
LAY:ADD? '1',RIGH,XCOR
(see LAYout:ADD[:WINDow]? on page 71)
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 45 for further details.
Remote command:
LAY:ADD? '1',RIGH,MCAP
(see LAYout:ADD[:WINDow]? on page 71)
Retrieving results see Chapter 6.5.2, "Magnitude capture", on page 78
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
(see LAYout:ADD[:WINDow]? on page 71)
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Measurements and result displays
Evaluation methods for HRP UWB
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.
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
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)
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Measurements and result displays
Evaluation methods for HRP UWB
Chip Per Burst Non-HPRF: Chips Per Burst in line with IEEE
802.15.4-2020 (Table 15-3)
Hop Burst Non-HPRF: Hop Burst in line with IEEE
802.15.4-2020 (Table 15-3)
Length [Octets] Length of payload in octets including MAC FCS
octets
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
(see LAYout:ADD[:WINDow]? on page 71)
Querying payload content: FETCh<n>:PACKet:DATA:PAYLoad? on page 80
Retrieving results see Chapter 6.5.3, "Packet insights", on page 80
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
(see LAYout:ADD[:WINDow]? on page 71)
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Measurements and result displays
Evaluation methods for HRP UWB
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.
Remote command:
LAY:ADD? '1',RIGH,PULS
(see LAYout:ADD[:WINDow]? on page 71)
Result Summary
Displays various measurement results in numerical form, combined in one table.
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Measurements and result displays
Evaluation methods for HRP UWB
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Measurements and result displays
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
(see LAYout:ADD[:WINDow]? on page 71)
Retrieving results see Chapter 6.5.4, "Result summary", on page 81
Symbol Phase Jitter
Displays a histogram of the phase jitter of symbols 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,SJPH
(see LAYout:ADD[:WINDow]? on page 71)
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
(see LAYout:ADD[:WINDow]? on page 71)
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4 Configuration
4.1 Configuration overview
Configuration
Configuration overview
● Configuration overview............................................................................................24
● Input and frontend settings......................................................................................25
● Trigger settings....................................................................................................... 39
● Data acquisition.......................................................................................................44
● Burst/Sync...............................................................................................................45
● Demodulation..........................................................................................................47
● Evaluation range..................................................................................................... 49
● Result configuration................................................................................................ 52
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 at
the bottom of all softkey menus.
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.
Note: Do not confuse the "Preset Channel" button with the [Preset] key, which restores
the entire instrument to its default values and thus closes all channels on the
R&S FSW (except for the default channel)!
Remote command:
SYSTem:PRESet:CHANnel[:EXEC] on page 69
Access: "Overview" > "Input/Frontend"
The R&S FSW 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.
The output settings are identical to the base unit and are described in the R&S FSW
User Manual.
● Input source settings...............................................................................................25
● Output settings........................................................................................................29
● Frequency settings..................................................................................................33
● Amplitude settings...................................................................................................34
● Scaling.................................................................................................................... 37
4.2.1 Input source settings
Access: "Overview" > "Input/Frontend" > "Input Source" tab
Some settings are also available in the "Amplitude" tab of the "Amplitude" dialog box.
Input from other sources
The R&S FSW HRP UWB application can also process input from the following
optional sources:
●
I/Q Input files
●
2 GHz bandwidth extension (R&S FSW-B2000)
● Radio frequency input............................................................................................. 26
● Settings for input from I/Q data files........................................................................28
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4.2.1.1 Radio frequency input
Configuration
Input and frontend settings
Access: "Overview" > "Input/Frontend" > "Input Source" tab > "Radio Frequency" tab
The default input source for the R&S FSW is the radio frequency. If no additional
options are installed, this is the only available input source.
RF Input Protection
The RF input connector of the R&S FSW must be protected against signal levels that
exceed the ranges specified in the data sheet. Therefore, the R&S FSW is equipped
with an overload protection mechanism for DC and signal frequencies up to 30 MHz.
This mechanism becomes active as soon as the power at the input mixer exceeds the
specified limit. It ensures that the connection between RF input and input mixer is cut
off.
When the overload protection is activated, an error message is displayed in the status
bar ("INPUT OVLD"), and a message box informs you that the RF input was disconnected. Furthermore, a status bit (bit 3) in the STAT:QUES:POW status register is set.
In this case, you must decrease the level at the RF input connector and then close the
message box. Then measurement is possible again. Reactivating the RF input is also
possible via the remote command INPut<ip>:ATTenuation:PROTection:RESet.
Radio Frequency State................................................................................................. 26
Input Coupling...............................................................................................................27
Impedance.................................................................................................................... 27
Direct Path.................................................................................................................... 27
High Pass Filter 1 to 3 GHz...........................................................................................28
Radio Frequency State
Activates input from the "RF Input" connector.
For R&S FSW85 models with two input connectors, you must define which input
source is used for each measurement channel.
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Configuration
Input and frontend settings
"Input 1"
"Input 2"
Remote command:
INPut<ip>:SELect on page 87
INPut<ip>:TYPE on page 88
Input Coupling
The RF input of the R&S FSW 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 on page 85
Impedance
For some measurements, the reference impedance for the measured levels of the
R&S FSW can be set to 50 Ω or 75 Ω.
1.00 mm RF input connector for frequencies up to 85 GHz (90 GHz
with option R&S FSW-B90G)
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 on page 87
Direct Path
Enables or disables the use of the direct path for small frequencies.
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.
"Auto"
"Off"
(Default) The direct path is used automatically for frequencies close
to zero.
The analog mixer path is always used.
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4.2.1.2 Settings for input from I/Q data files
Configuration
Input and frontend settings
Remote command:
INPut<ip>:DPATh on page 86
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.
This function requires an additional 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.)
Remote command:
INPut<ip>:FILTer:HPASs[:STATe] on page 86
Access: "Overview" > "Input/Frontend" > "Input Source" > "I/Q File"
Or: [INPUT/OUTPUT] > "Input Source Config" > "Input Source" > "I/Q File"
I/Q Input File State........................................................................................................ 28
Select I/Q data file.........................................................................................................29
File Repetitions............................................................................................................. 29
I/Q Input File State
Enables input from the selected I/Q input file.
If enabled, the application performs measurements on the data from this file. Thus,
most measurement settings related to data acquisition (attenuation, center frequency,
measurement bandwidth, sample rate) cannot be changed. The measurement time
can only be decreased to perform measurements on an extract of the available data
only.
Note: Even when the file input is disabled, the input file remains selected and can be
enabled again quickly by changing the state.
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Configuration
Input and frontend settings
Remote command:
INPut<ip>:SELect on page 87
Select I/Q data file
Opens a file selection dialog box to select an input file that contains I/Q data.
The I/Q data file must be in one of the following supported formats:
.iq.tar
●
.iqw
●
.csv
●
.mat
●
.wv
●
.aid
●
Note: Only a single data stream or channel can be used as input, even if multiple
streams or channels are stored in the file.
Note: For some file formats that do not provide the sample rate and measurement time
or record length, you must define these parameters manually. Otherwise the traces are
not visible in the result displays.
The default storage location for I/Q data files is C:\R_S\INSTR\USER.
Remote command:
INPut<ip>:FILE:PATH on page 89
File Repetitions
Determines how often the data stream is repeatedly copied in the I/Q data memory to
create a longer record. If the available memory is not sufficient for the specified number of repetitions, the largest possible number of complete data streams is used.
Remote command:
TRACe:IQ:FILE:REPetition:COUNt on page 90
4.2.2 Output settings
Access: "Overview" > "Input/Frontend" > "Output"
or: [INPUT/OUTPUT] > "OUTPUT Config"
The R&S FSW HRP UWB application can provide output to special connectors for
other devices.
For details on connectors, refer to the R&S FSW Getting Started manual, "Front / Rear
Panel View" chapters.
Output settings can be configured via the [Input/Output] key or in the "Outputs" dialog
box.
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Configuration
Input and frontend settings
Data Output...................................................................................................................30
Noise Source Control....................................................................................................31
Trigger 2/3.....................................................................................................................31
└ Output Type.................................................................................................... 32
└ Level..................................................................................................... 32
└ Pulse Length.........................................................................................32
└ Send Trigger.........................................................................................32
Data Output
Defines the type of signal available at one of the output connectors of the R&S FSW.
"IF"
Remote command:
OUTPut<up>:IF[:SOURce] on page 91
The measured IF value is provided at the IF/VIDEO/DEMOD output
connector.
For bandwidths up to 80 MHZ, the IF output is provided at the specified "IF Out Frequency".
If an optional bandwidth extension R&S FSW-B160/-B320/-B512 is
used, the measured IF value is available at the "IF WIDE OUTPUT"
connector. The frequency at which this value is output is determined
automatically. It is displayed as the "IF Wide Out Frequency". For
details on the used frequencies, see the data sheet.
This setting is not available for bandwidths larger than 512 MHz.
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Configuration
Input and frontend settings
Noise Source Control
Enables or disables the 28 V voltage supply for an external noise source connected to
the "Noise source control / Power sensor") connector. By switching the supply voltage
for an external noise source on or off in the firmware, you can enable or disable the
device as required.
External noise sources are useful when you are measuring power levels that fall below
the noise floor of the R&S FSW itself, for example when measuring the noise level of
an amplifier.
In this case, you can first connect an external noise source (whose noise power level is
known in advance) to the R&S FSW and measure the total noise power. From this
value, you can determine the noise power of the R&S FSW. Then when you measure
the power level of the actual DUT, you can deduct the known noise level from the total
power to obtain the power level of the DUT.
Remote command:
DIAGnostic:SERVice:NSOurce on page 91
Trigger 2/3
The trigger input and output functionality depends on how the variable "Trigger Input/
Output" connectors are used.
"Trigger 1"
"Trigger 2"
"Trigger 3"
"Input"
"Trigger 1" is input only.
Defines the usage of the variable "Trigger Input/Output" connector on
the front panel
(not available for R&S FSW85 models with 2 RF input connectors)
Defines the usage of the variable "Trigger 3 Input/Output" connector
on the rear panel
The signal at the connector is used as an external trigger source by
the R&S FSW. Trigger input parameters are available in the "Trigger"
dialog box.
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Configuration
Input and frontend settings
"Output"
Remote command:
OUTPut<up>:TRIGger<tp>:DIRection on page 106
Output Type ← Trigger 2/3
Type of signal to be sent to the output
"Device Trig-
gered"
"Trigger
Armed"
"User Defined"
Remote command:
OUTPut<up>:TRIGger<tp>:OTYPe on page 107
Level ← Output Type ← Trigger 2/3
Defines whether a high (1) or low (0) constant signal is sent to the trigger output connector (for "Output Type": "User Defined".
The trigger pulse level is always opposite to the constant signal level defined here. For
example, for "Level" = "High", a constant high signal is output to the connector until you
select the Send Trigger function. Then, a low pulse is provided.
The R&S FSW sends a trigger signal to the output connector to be
used by connected devices.
Further trigger parameters are available for the connector.
(Default) Sends a trigger when the R&S FSW triggers.
Sends a (high level) trigger when the R&S FSW is in "Ready for trigger" state.
This state is indicated by a status bit in the STATus:OPERation register (bit 5), as well as by a low-level signal at the "AUX" port (pin 9).
Sends a trigger when you select the "Send Trigger" button.
In this case, further parameters are available for the output signal.
Remote command:
OUTPut<up>:TRIGger<tp>:LEVel on page 107
Pulse Length ← Output Type ← Trigger 2/3
Defines the duration of the pulse (pulse width) sent as a trigger to the output connector.
Remote command:
OUTPut<up>:TRIGger<tp>:PULSe:LENGth on page 108
Send Trigger ← Output Type ← Trigger 2/3
Sends a user-defined trigger to the output connector immediately.
Note that the trigger pulse level is always opposite to the constant signal level defined
by the output Level setting. For example, for "Level" = "High", a constant high signal is
output to the connector until you select the "Send Trigger" function. Then, a low pulse
is sent.
Which pulse level is sent is indicated by a graphic on the button.
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4.2.3 Frequency settings
Configuration
Input and frontend settings
Remote command:
OUTPut<up>:TRIGger<tp>:PULSe:IMMediate on page 108
Access: "Overview" > "Input/Frontend" > "Frequency" tab
Center Frequency......................................................................................................... 33
Center Frequency Stepsize...........................................................................................33
Frequency Offset...........................................................................................................33
Center Frequency
Defines the center frequency of the signal in Hertz.
Remote command:
[SENSe:]FREQuency:CENTer on page 92
Center Frequency Stepsize
Defines the step size by which the center frequency is increased or decreased using
the arrow keys.
When you use the rotary knob 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 92
Frequency Offset
Shifts the displayed frequency range along the x-axis by the defined offset.
Defines a fixed step size for the center frequency. Enter the step size
in the "Value" field.
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4.2.4 Amplitude settings
Configuration
Input and frontend settings
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 93
Access: "Overview" > "Input/Frontend" > "Amplitude" tab
Amplitude settings affect the signal power or error levels.
Note that amplitude settings are not window-specific, as opposed to the scaling and
unit settings.
Reference Level............................................................................................................35
└ Shifting the Display (Offset)............................................................................ 35
RF Attenuation.............................................................................................................. 35
└ Attenuation Mode / Value................................................................................35
Using Electronic Attenuation.........................................................................................36
Input Settings................................................................................................................ 36
└ Preamplifier.....................................................................................................36
└ Impedance...................................................................................................... 37
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Configuration
Input and frontend settings
Reference Level
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 R&S FSW 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 optimum measurement (no compression, good signal-tonoise ratio).
Note: Note that for input from the External Mixer (R&S FSW-B21) the maximum refer-
ence level also depends on the conversion loss; see the R&S FSW base unit user
manual for details.
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 R&S FSW.
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RLEVel
on page 94
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 FSW 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 FSW 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:
OFFSet on page 94
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.
By default and when no (optional) electronic attenuation is available, mechanical
attenuation is applied.
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.
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Configuration
Input and frontend settings
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 99
INPut<ip>:ATTenuation:AUTO on page 99
Using Electronic Attenuation
If the (optional) Electronic Attenuation hardware is installed on the R&S FSW, 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.
For an active external frontend, electronic attenuation is not available.
Note: Electronic attenuation is not available for stop frequencies (or center frequencies
in zero span) above 15 GHz.
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.
The electronic attenuation can be varied in 1 dB steps. If the electronic attenuation is
on, the mechanical attenuation can be varied in 5 dB steps. Other entries are rounded
to the next lower integer value.
For the R&S FSW85, the mechanical attenuation can be varied only in 10 dB steps.
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 101
INPut<ip>:EATT:AUTO on page 100
INPut<ip>:EATT on page 100
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 26.
Preamplifier ← Input Settings
If the (optional) internal preamplifier hardware is installed, 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.
For all R&S FSW models except for R&S FSW85, the following settings are available:
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Configuration
Input and frontend settings
"Off"
"15 dB"
"30 dB"
For R&S FSW85 models, the input signal is amplified by 30 dB if the preamplifier is
activated.
Remote command:
INPut<ip>:GAIN:STATe on page 95
INPut<ip>:GAIN[:VALue] on page 96
Impedance ← Input Settings
For some measurements, the reference impedance for the measured levels of the
R&S FSW can be set to 50 Ω or 75 Ω.
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 on page 87
4.2.5 Scaling
Deactivates the preamplifier.
The RF input signal is amplified by about 15 dB.
The RF input signal is amplified by about 30 dB.
Access: [AMPT] > "Scale Config"
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.
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Configuration
Input and frontend settings
A visualization of the diagram scaling with the current settings is displayed at the right
side of the dialog box.
Auto Scale Once........................................................................................................... 38
Defining Min and Max Values........................................................................................38
Range per Division........................................................................................................39
Reference Position........................................................................................................39
Reference Value............................................................................................................39
Auto Scale Once
Automatically determines the optimal range and reference level position to be displayed for the current measurement settings.
The display is only set once; it is not adapted further if the measurement settings are
changed again.
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:AUTO ONCE
on page 97
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 97
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:MAXimum
on page 97
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Configuration
Trigger settings
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 98
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 98
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 98
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.
External triggers from one of the [TRIGGER INPUT/OUTPUT] connectors on the
R&S FSW are configured in a separate tab of the dialog box.
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Configuration
Trigger settings
For details see the R&S FSW User Manual.
For step-by-step instructions on configuring triggered measurements, see the
R&S FSW User Manual.
Trigger Settings.............................................................................................................40
└ Trigger Source................................................................................................ 40
└ Free Run...............................................................................................40
└ External Trigger 1/2/3........................................................................... 40
└ External Channel 3............................................................................... 41
└ External Analog.................................................................................... 41
└ IF Power............................................................................................... 41
└ I/Q Power..............................................................................................42
└ RF Power..............................................................................................42
└ Trigger Level...................................................................................................42
└ Drop-Out Time................................................................................................ 42
└ Coupling..........................................................................................................42
└ Trigger Offset..................................................................................................43
└ Slope...............................................................................................................43
└ Hysteresis....................................................................................................... 43
└ Trigger Holdoff................................................................................................ 43
Capture Offset...............................................................................................................43
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 105
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 105
External Trigger 1/2/3 ← Trigger Source ← Trigger Settings
Data acquisition starts when the TTL signal fed into the specified input connector
meets or exceeds the specified trigger level.
(See "Trigger Level" on page 42).
Note: The "External Trigger 1" softkey automatically selects the trigger signal from the
"TRIGGER 1 INPUT" connector on the front panel.
If the optional 2 GHz / 5 GHz bandwidth extension (B2000/B5000) is active, only Exter-
nal Channel 3 is supported.
For details, see the "Instrument Tour" chapter in the R&S FSW Getting Started manual.
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Configuration
Trigger settings
"External Trigger 1"
Trigger signal from the "TRIGGER 1 INPUT" connector.
"External Trigger 2"
Trigger signal from the "TRIGGER 2 INPUT / OUTPUT" connector.
For R&S FSW85 models, "Trigger 2" is not available due to the second RF input connector on the front panel.
"External Trigger 3"
Trigger signal from the "TRIGGER 3 INPUT / OUTPUT" connector on
the rear panel.
Remote command:
TRIG:SOUR EXT, TRIG:SOUR EXT2
TRIG:SOUR EXT3
See TRIGger[:SEQuence]:SOURce on page 105
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 FSW 2.30, the "Ch3" input on
the oscilloscope must be used!
This trigger source is only available if the optional 2 GHz / 5 GHz bandwidth extension
(R&S FSW-B2000/B5000) is active (see R&S FSW I/Q Analyzer and I/Q Input User
Manual).
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 105
External Analog ← Trigger Source ← Trigger Settings
Data acquisition starts when the signal fed into the EXT TRIGGER INPUT connector
on the oscilloscope meets or exceeds the specified trigger level.
Remote command:
TRIG:SOUR EXT, see TRIGger[:SEQuence]:SOURce on page 105
IF Power ← Trigger Source ← Trigger Settings
The R&S FSW starts capturing data as soon as the trigger level is exceeded around
the third intermediate frequency.
For frequency sweeps, the third IF represents the start frequency. The trigger threshold
depends on the defined trigger level, as well as on the RF attenuation and preamplification. A reference level offset, if defined, is also considered. The trigger bandwidth at
the intermediate frequency depends on the RBW and sweep type. For details on available trigger levels and trigger bandwidths, see the instrument data sheet.
For measurements on a fixed frequency (e.g. zero span or I/Q measurements), the
third IF represents the center frequency.
This trigger source is only available for RF input.
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Configuration
Trigger settings
The available trigger levels depend on the RF attenuation and preamplification. A reference 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 105
I/Q Power ← Trigger Source ← Trigger Settings
This trigger source is not available if the optional Digital Baseband Interface or optional
Analog Baseband Interface is used for input.
Triggers the measurement when the magnitude of the sampled I/Q data exceeds the
trigger threshold.
Remote command:
TRIG:SOUR IQP, see TRIGger[:SEQuence]:SOURce on page 105
RF Power ← Trigger Source ← Trigger Settings
Defines triggering of the measurement via signals which are outside the displayed
measurement range.
For this purpose, the instrument uses a level detector at the first intermediate frequency.
The resulting trigger level at the RF input depends on the RF attenuation and preamplification. 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 105
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 103
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 102
Coupling ← Trigger Settings
If the selected trigger source is "IF Power" or "External Channel 3", you can configure
the coupling of the external trigger to the oscilloscope.
This setting is only available if the optional 2 GHz bandwidth extension is active.
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Configuration
Trigger settings
"DC 50 Ω"
Direct connection with 50 Ω termination, passes both DC and AC
components of the trigger signal.
"DC 1 MΩ"
Direct connection with 1 MΩ termination, passes both DC and AC
components of the trigger signal.
"AC"
Connection through capacitor, removes unwanted DC and very lowfrequency components.
Remote command:
TRIGger[:SEQuence]:OSCilloscope:COUPling on page 105
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)
Remote command:
TRIGger[:SEQuence]:HOLDoff[:TIME] on page 102
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 104
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" trigger sources. The range of the value is
between 3 dB and 50 dB with a step width of 1 dB.
Remote command:
TRIGger[:SEQuence]:IFPower:HYSTeresis on page 102
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 102
Capture Offset
This setting is only available for secondary applications in MSRA/MSRT operating
mode. It has a similar effect as the trigger offset in other measurements: it defines the
time offset between the capture buffer start and the start of the extracted secondary
application data.
Remote command:
[SENSe:]MSRA:CAPTure:OFFSet on page 106
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4.4 Data acquisition
Configuration
Data acquisition
Access: "Overview" > "Data Acquisition"
The data acquisition settings of the R&S FSW can be configured to evaluate signals
from different UWB channels.
Capture Time.................................................................................................................44
Channel.........................................................................................................................44
Default Values............................................................................................................... 45
Sample Rate................................................................................................................. 45
Maximum Bandwidth.....................................................................................................45
Analysis Bandwidth.......................................................................................................45
Capture Length............................................................................................................. 45
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.
Remote command:
[SENSe:]SWEep:TIME on page 109
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 FSW is set according to the definition in
the selected channel.
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Configuration
Burst/Sync
Remote command:
[SENSe:]CAPTure:PRESet on page 109
[SENSe:]CAPTure:FSET on page 110
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 110
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 110
[SENSe:]SRATe on page 110
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 FSW.
Remote command:
TRACe:IQ:WBANd[:STATe] on page 110
TRACe:IQ:WBANd:MBWidth on page 111
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 111
4.5 Burst/Sync
Access: "Overview" > "Burst/Sync"
The "Burst/Sync" dialog provides functionality to configure how packets are detected.
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Configuration
Burst/Sync
Reference......................................................................................................................46
Threshold...................................................................................................................... 46
Min Burst Length...........................................................................................................47
Max Burst Length..........................................................................................................47
Max Off Time within Burst.............................................................................................47
Evaluation Offset...........................................................................................................47
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.
●
"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 112
Threshold
Defines the detection threshold in dB.
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Configuration
Demodulation
Remote command:
[SENSe:]DETect:THReshold on page 112
Min Burst Length
Defines the minimum burst length.
Remote command:
[SENSe:]DETect:BURSt:LENGth:MINimum on page 112
Max Burst Length
Defines the maximum burst length.
Remote command:
[SENSe:]DETect:BURSt:LENGth:MAXimum on page 112
Max Off Time within Burst
Defines the maximum allowed off time within a burst.
Remote command:
[SENSe:]DETect:OFF:TIME:MAXimum on page 113
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 113
4.6 Demodulation
Access: "Overview" > "Demodulation"
The settings of the R&S FSW can be configured to demodulate different UWB signals.
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Configuration
Demodulation
Mode............................................................................................................................. 48
PHY Data Rate Mode....................................................................................................48
HPRF Payload Size...................................................................................................... 48
MAC FCS......................................................................................................................49
Packet Configuration.....................................................................................................49
Active Segment Length.................................................................................................49
Active Segments........................................................................................................... 49
Gap (x4 chips)...............................................................................................................49
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 113
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 113
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.
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Remote command:
[SENSe:]DEMod:PAYLoad:MAX on page 114
MAC FCS
Enable FCS check of payload either with 2 octet or with 4 octet format.
Remote command:
[SENSe:]DEMod:MAC:FCS on page 114
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 114
Configuration
Evaluation range
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 114
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 114
Gap (x4 chips)
Gap between payload and STS section in packet configuration 2.
Remote command:
[SENSe:]DEMod:STS:GAP on page 115
4.7 Evaluation range
Access: "Overview" > "Evaluation Range"
The evaluation range dialog of the R&S FSW provides functionality to configure the
number of analyzed UWB packets.
To select different evaluation modes, see Chapter 5.3, "Evaluation modes",
on page 59.
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4.7.1 Analysis
Configuration
Evaluation range
Default Group and Selected Packet..............................................................................50
Range............................................................................................................................50
Group............................................................................................................................ 50
Count.............................................................................................................................50
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 115
[SENSe:]EVALuation:PACKet:NUMBer on page 115
Range
Sets the type of range used for evaluating packets.
Remote command:
[SENSe:]EVALuation:STATistics:RANGe on page 116
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 116
Count
Sets the number of packets to capture
Remote command:
[SENSe:]EVALuation:STATistics:COUNt on page 116
[SENSe:]EVALuation:PACKet:COUNt? on page 116
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4.7.2 Group Config
Configuration
Evaluation range
Figure 4-1: Exemplary configuration of an "even" group
Figure 4-2: 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 117
[SENSe:]EVALuation:FILTer<n>:NAME on page 117
[SENSe:]EVALuation:FILTer<n>:DELete on page 117
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 49) 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.
Remote command:
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4.8.2 Result summary
Configuration
Result configuration
SENSe[:WINDow<n>]:DISPlay:RWConfig on page 118
SENSe[:WINDow<n>]:DISPlay:RWConfig:CONFigure on page 118
SENSe[:WINDow<n>]:DISPlay:RWConfig:GROup on page 118
SENSe[:WINDow<n>]:DISPlay:RWConfig:LINK on page 119
SENSe[:WINDow<n>]:DISPlay:RWConfig:PACKet on page 119
SENSe[:WINDow<n>]:DISPlay:CONFig:BINS on page 119
SENSe[:WINDow<n>]:DISPlay:CONFig:SCALe on page 119
Defines the values to be displayed in the Result Summary display.
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4.8.3 Packet insight
Configuration
Result configuration
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 FSW user manual.
● Configuring traces...................................................................................................55
● Using markers.........................................................................................................58
● Evaluation modes....................................................................................................59
The UWB application provides several tools to configure and evaluate traces.
● Selecting the trace information................................................................................55
● Exporting traces...................................................................................................... 56
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 120
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 121
Overwrite mode (default): the trace is overwritten by each measurement.
The maximum value is determined over several measurements and
displayed. The R&S FSW 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 FSW 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 FSW 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................................................................................................ 57
Include Instrument & Measurement Settings................................................................ 57
Decimal Separator........................................................................................................ 57
Export Trace..................................................................................................................57
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 121
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 122
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 122
Export Trace
The "Export Trace To ASCII File" button opens a dialog box to select a directory and
file name for the ASCII file.
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.
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5.2 Using markers
Analysis
Using markers
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 FSW base unit user manual.
Remote command:
MMEMory:STORe<n>:TRACe on page 121
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 FSW user manual.
● Configuring markers................................................................................................58
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.....................................................................................................58
Marker Info....................................................................................................................58
Marker Table Display
Defines how the marker information is displayed.
"On"
"Off"
"Auto"
Remote command:
DISPlay[:WINDow<n>]:MTABle on page 127
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 127
The R&S FSW-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 FSW 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 FSW 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............................................................................................................. 60
● Common suffixes.................................................................................................... 65
● Activating HRP UWB measurements......................................................................65
● Configuring the result display..................................................................................69
● Retrieving results.................................................................................................... 77
● Configuring the measurement.................................................................................84
● Configuring standard traces..................................................................................120
● Working with markers............................................................................................123
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 FSW.
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 FSW 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....................................................................................................... 63
● Boolean...................................................................................................................64
● Character data........................................................................................................ 64
● Character strings.....................................................................................................65
● Block data............................................................................................................... 65
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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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 61.
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 FSW 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 FSW 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 on the R&S FSW. The measurement is started immediately with the default settings.
INSTrument:CREate:DUPLicate........................................................................................ 66
INSTrument:CREate[:NEW].............................................................................................. 66
INSTrument:CREate:REPLace..........................................................................................66
INSTrument:DELete......................................................................................................... 67
INSTrument:LIST?........................................................................................................... 67
INSTrument:REName.......................................................................................................69
SYSTem:PRESet:CHANnel[:EXEC]................................................................................... 69
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INSTrument:CREate:DUPLicate
This command duplicates the currently selected channel, i.e creates a new channel of
the same type and with the identical measurement settings. The name of the new
channel is the same as the copied channel, extended by a consecutive number (e.g.
"IQAnalyzer" -> "IQAnalyzer 2").
The channel to be duplicated must be selected first using the INST:SEL command.
Example:
Usage: Event
INSTrument:CREate[:NEW]
This command adds a measurement channel. You can configure up to 10 measurement channels at the same time (depending on available memory).
Use LAYout:SELect on page 77 to set the window layout after adding a new measurement channel.
Parameters:
<ChannelType> Channel type of the new channel.
<ChannelName> String containing the name of the channel.
Example:
INST:SEL 'IQAnalyzer'
INST:CRE:DUPL
Duplicates the channel named 'IQAnalyzer' and creates a new
channel named 'IQAnalyzer2'.
<ChannelType>, <ChannelName>
For a list of available channel types, see INSTrument:LIST?
on page 67.
Note that you cannot assign an existing channel name to a new
channel. If you do, an error occurs.
INST:CRE SAN, 'Spectrum 2'
Adds a spectrum display named "Spectrum 2".
INSTrument:CREate:REPLace <ChannelName1>,<ChannelType>,<ChannelName2>
This command replaces a channel with another one.
Setting parameters:
<ChannelName1> String containing the name of the channel you want to replace.
<ChannelType> Channel type of the new channel.
For a list of available channel types, see INSTrument:LIST?
on page 67.
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<ChannelName2> String containing the name of the new channel.
Note: If the specified name for a new channel already exists, the
default name, extended by a sequential number, is used for the
new channel (see INSTrument:LIST? on page 67).
Channel names can have a maximum of 31 characters, and
must be compatible with the Windows conventions for file
names. In particular, they must not contain special characters
such as ":", "*", "?".
Example:
Usage: Setting only
INSTrument:DELete <ChannelName>
This command deletes a channel.
If you delete the last channel, the default "Spectrum" channel is activated.
Setting parameters:
<ChannelName> String containing the name of the channel you want to delete.
Example:
Usage: Setting only
INSTrument:LIST?
This command queries all active channels. The query is useful to obtain the names of
the existing channels, which are required to replace or delete the channels.
INST:CRE:REPL 'IQAnalyzer2',IQ,'IQAnalyzer'
Replaces the channel named "IQAnalyzer2" by a new channel of
type "IQ Analyzer" named "IQAnalyzer".
A channel must exist to delete it.
INST:DEL 'IQAnalyzer4'
Deletes the channel with the name 'IQAnalyzer4'.
Return values:
<ChannelType>,
<ChannelName>
Example:
Usage: Query only
For each channel, the command returns the channel type and
channel name (see tables below).
Tip: to change the channel name, use the INSTrument:
REName command.
INST:LIST?
Result for 3 channels:
'ADEM','Analog Demod','IQ','IQ
Analyzer','IQ','IQ Analyzer2'
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Table 6-2: Available channel types and default channel names in Signal and Spectrum Analyzer mode
Application <ChannelType>
parameter
Spectrum SANALYZER Spectrum
1xEV-DO BTS (R&S FSW-K84) BDO 1xEV-DO BTS
1xEV-DO MS (R&S FSW-K85) MDO 1xEV-DO MS
3GPP FDD BTS (R&S FSW-K72) BWCD 3G FDD BTS
3GPP FDD UE (R&S FSW-K73) MWCD 3G FDD UE
802.11ad (R&S FSW-K95) WIGIG 802.11ad
802.11ay (R&S FSW-K97) EDMG 802.11ay EDMG
Amplifier Measurements (R&S FSW-K18) AMPLifier Amplifier
AM/FM/PM Modulation Analysis (R&S FSW-K7) ADEM Analog Demod
Avionics (R&S FSW-K15) AVIonics Avionics
cdma2000 BTS (R&S FSW-K82) BC2K CDMA2000 BTS
cdma2000 MS (R&S FSW-K83) MC2K CDMA2000 MS
DOCSIS 3.1 (R&S FSW-K192/193) DOCSis DOCSIS 3.1
Fast Spur Search (R&S FSW-K50) SPUR Spurious
Default Channel name*)
GSM (R&S FSW-K10) GSM GSM
HRP UWB (R&S FSW-K149) UWB HRP UWB
I/Q Analyzer IQ IQ Analyzer
LTE (R&S FSW-K10x) LTE LTE
Multi-Carrier "Group Delay" (R&S FSW-K17) MCGD MC "Group Delay"
NB-IoT (R&S FSW-K106) NIOT NB-IoT
Noise (R&S FSW-K30) NOISE Noise
5G NR (R&S FSW-K144) NR5G 5G NR
OFDM VSA (R&S FSW-K96) OFDMVSA OFDM VSA
OneWeb (R&S FSW-K201) OWEB OneWeb
Phase Noise (R&S FSW-K40) PNOISE Phase Noise
Pulse (R&S FSW-K6) PULSE Pulse
"Real-Time Spectrum" RTIM "Real-Time Spectrum"
TD-SCDMA BTS (R&S FSW-K76) BTDS TD-SCDMA BTS
TD-SCDMA UE (R&S FSW-K77) MTDS TD-SCDMA UE
Transient Analysis (R&S FSW-K60) TA Transient Analysis
*) If the specified name for a new channel already exists, the default name, extended by a sequential number, is used for the new channel.
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Application <ChannelType>
parameter
Verizon 5GTF Measurement Application (V5GTF,
R&S FSW-K118)
VSA (R&S FSW-K70) DDEM VSA
WLAN (R&S FSW-K91) WLAN WLAN
*) If the specified name for a new channel already exists, the default name, extended by a sequential number, is used for the new channel.
V5GT V5GT
Default Channel name*)
INSTrument:REName <ChannelName1>, <ChannelName2>
This command renames a channel.
Setting parameters:
<ChannelName1> String containing the name of the channel you want to rename.
<ChannelName2> String containing the new channel name.
Note that you cannot assign an existing channel name to a new
channel. If you do, an error occurs.
Channel names can have a maximum of 31 characters, and
must be compatible with the Windows conventions for file
names. In particular, they must not contain special characters
such as ":", "*", "?".
Example:
INST:REN 'IQAnalyzer2','IQAnalyzer3'
Renames the channel with the name 'IQAnalyzer2' to 'IQAnalyzer3'.
Usage: Setting only
SYSTem:PRESet:CHANnel[:EXEC]
This command restores the default instrument settings in the current channel.
Use INST:SEL to select the channel.
Example:
INST:SEL 'Spectrum2'
Selects the channel for "Spectrum2".
SYST:PRES:CHAN:EXEC
Restores the factory default settings to the "Spectrum2" channel.
Usage: Event
Manual operation: See "Preset Channel" on page 25
6.4 Configuring the result display
The following commands are required to configure the screen display in a remote environment.
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6.4.1 General window commands
Remote commands for HRP UWB measurements
Configuring the result display
● General window commands....................................................................................70
● Working with windows in the display.......................................................................71
● Layout configuration in R&S FSW-K149.................................................................77
The following commands are required to configure general window layout, independent
of the application.
DISPlay:FORMat............................................................................................................. 70
DISPlay[:WINDow<n>]:SIZE............................................................................................. 70
DISPlay:FORMat <Format>
This command determines which tab is displayed.
Parameters:
<Format> SPLit
Displays the MultiView tab with an overview of all active channels
SINGle
Displays the measurement channel that was previously focused.
*RST: SING
Example:
DISPlay[:WINDow<n>]:SIZE <Size>
This command maximizes the size of the selected result display window temporarily.
To change the size of several windows on the screen permanently, use the LAY:SPL
command (see LAYout:SPLitter on page 74).
Suffix:
<n>
Parameters:
<Size> LARGe
Example:
DISP:FORM SPL
.
Window
Maximizes the selected window to full screen.
Other windows are still active in the background.
SMALl
Reduces the size of the selected window to its original size.
If more than one measurement window was displayed originally,
these are visible again.
*RST: SMALl
DISP:WIND2:SIZE LARG
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6.4.2 Working with windows in the display
Remote commands for HRP UWB measurements
Configuring the result display
The following commands are required to change the evaluation type and rearrange the
screen layout for a channel as you do using the SmartGrid in manual operation. Since
the available evaluation types depend on the selected application, some parameters
for the following commands also depend on the selected channel.
Note that the suffix <n> always refers to the window in the currently selected channel.
Useful commands for window settings described elsewhere:
●
LAYout:SELect on page 77
LAYout:ADD[:WINDow]?...................................................................................................71
LAYout:CATalog[:WINDow]?.............................................................................................. 72
LAYout:IDENtify[:WINDow]?..............................................................................................73
LAYout:REMove[:WINDow]............................................................................................... 73
LAYout:REPLace[:WINDow]..............................................................................................73
LAYout:SPLitter................................................................................................................74
LAYout:WINDow<n>:ADD?............................................................................................... 75
LAYout:WINDow<n>:IDENtify?.......................................................................................... 76
LAYout:WINDow<n>:REMove............................................................................................76
LAYout:WINDow<n>:REPLace.......................................................................................... 76
LAYout:ADD[:WINDow]? <WindowName>,<Direction>,<WindowType>
This command adds a window to the display in the active channel.
This command is always used as a query so that you immediately obtain the name of
the new window as a result.
To replace an existing window, use the LAYout:REPLace[:WINDow] command.
Query parameters:
<WindowName> String containing the name of the existing window the new win-
dow is inserted next to.
By default, the name of a window is the same as its index. To
determine the name and index of all active windows, use the
LAYout:CATalog[:WINDow]? query.
<Direction> LEFT | RIGHt | ABOVe | BELow
Direction the new window is added relative to the existing window.
<WindowType> text value
Type of result display (evaluation method) you want to add.
See the table below for available parameter values.
Return values:
<NewWindowName> When adding a new window, the command returns its name (by
default the same as its number) as a result.
Usage: Query only
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Manual operation: See "Chip Phase Jitter" on page 14
See "Chip Time Jitter" on page 15
See "Correlated Pulse" on page 15
See "Magnitude Capture" on page 16
See "Marker Table" on page 16
See "Packet Insights" on page 17
See "Packet Spectrum" on page 18
See "Pulse" on page 19
See "Result Summary" on page 19
See "Symbol Phase Jitter" on page 22
See "Symbol Time Jitter" on page 23
Table 6-3: <WindowType> parameter values for HRP UWB application
Parameter value Window type
CJPH Chip Phase Jitter
CJT Chip Time Jitter
XCOR Correlated Pulse
MCAP "Magnitude Capture"
MTAB "Marker Table"
PINS Packet Insights
PSP Packet Spectrum
PULS Pulse
RSUM "Result Summary"
SJPH Symbol Phase Jitter
SJT Symbol Time Jitter
LAYout:CATalog[:WINDow]?
This command queries the name and index of all active windows in the active channel
from top left to bottom right. The result is a comma-separated list of values for each
window, with the syntax:
<WindowName_1>,<WindowIndex_1>..<WindowName_n>,<WindowIndex_n>
Return values:
<WindowName> string
Name of the window.
In the default state, the name of the window is its index.
<WindowIndex> numeric value
Index of the window.
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Example:
Usage: Query only
LAYout:IDENtify[:WINDow]? <WindowName>
This command queries the index of a particular display window in the active channel.
Note: to query the name of a particular window, use the LAYout:WINDow<n>:
IDENtify? query.
Query parameters:
<WindowName> String containing the name of a window.
Return values:
<WindowIndex> Index number of the window.
Example:
LAY:CAT?
Result:
'2',2,'1',1
Two windows are displayed, named '2' (at the top or left), and '1'
(at the bottom or right).
LAY:IDEN:WIND? '2'
Queries the index of the result display named '2'.
Response:
2
Usage: Query only
LAYout:REMove[:WINDow] <WindowName>
This command removes a window from the display in the active channel.
Setting parameters:
<WindowName> String containing the name of the window. In the default state,
the name of the window is its index.
Example:
Usage: Setting only
LAYout:REPLace[:WINDow] <WindowName>,<WindowType>
This command replaces the window type (for example from "Diagram" to "Result Summary") of an already existing window in the active channel while keeping its position,
index and window name.
To add a new window, use the LAYout:ADD[:WINDow]? command.
Setting parameters:
<WindowName> String containing the name of the existing window.
LAY:REM '2'
Removes the result display in the window named '2'.
By default, the name of a window is the same as its index. To
determine the name and index of all active windows in the active
channel, use the LAYout:CATalog[:WINDow]? query.
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<WindowType> Type of result display you want to use in the existing window.
See LAYout:ADD[:WINDow]? on page 71 for a list of available
window types.
Example:
LAY:REPL:WIND '1',MTAB
Replaces the result display in window 1 with a marker table.
Usage: Setting only
LAYout:SPLitter <Index1>, <Index2>, <Position>
This command changes the position of a splitter and thus controls the size of the windows on each side of the splitter.
Compared to the DISPlay[:WINDow<n>]:SIZE on page 70 command, the
LAYout:SPLitter changes the size of all windows to either side of the splitter permanently, it does not just maximize a single window temporarily.
Note that windows must have a certain minimum size. If the position you define conflicts with the minimum size of any of the affected windows, the command does not
work, but does not return an error.
Figure 6-1: SmartGrid coordinates for remote control of the splitters
Setting parameters:
<Index1> The index of one window the splitter controls.
<Index2> The index of a window on the other side of the splitter.
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<Position> New vertical or horizontal position of the splitter as a fraction of
the screen area (without channel and status bar and softkey
menu).
The point of origin (x = 0, y = 0) is in the lower left corner of the
screen. The end point (x = 100, y = 100) is in the upper right corner of the screen. (See Figure 6-1.)
The direction in which the splitter is moved depends on the
screen layout. If the windows are positioned horizontally, the
splitter also moves horizontally. If the windows are positioned
vertically, the splitter also moves vertically.
Range: 0 to 100
Example:
Example:
Usage: Setting only
LAYout:WINDow<n>:ADD? <Direction>,<WindowType>
This command adds a measurement window to the display. Note that with this command, the suffix <n> determines the existing window next to which the new window is
added. Unlike LAYout:ADD[:WINDow]?, for which the existing window is defined by
a parameter.
LAY:SPL 1,3,50
Moves the splitter between window 1 ('Frequency Sweep') and 3
('"Marker Table"') to the center (50%) of the screen, i.e. in the
figure above, to the left.
LAY:SPL 1,4,70
Moves the splitter between window 1 ('Frequency Sweep') and 3
('"Marker Peak List"') towards the top (70%) of the screen.
The following commands have the exact same effect, as any
combination of windows above and below the splitter moves the
splitter vertically.
LAY:SPL 3,2,70
LAY:SPL 4,1,70
LAY:SPL 2,1,70
To replace an existing window, use the LAYout:WINDow<n>:REPLace command.
This command is always used as a query so that you immediately obtain the name of
the new window as a result.
Suffix:
<n>
Query parameters:
<Direction> LEFT | RIGHt | ABOVe | BELow
<WindowType> Type of measurement window you want to add.
Return values:
<NewWindowName> When adding a new window, the command returns its name (by
.
Window
See LAYout:ADD[:WINDow]? on page 71 for a list of available
window types.
default the same as its number) as a result.
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Example:
Usage: Query only
LAYout:WINDow<n>:IDENtify?
This command queries the name of a particular display window (indicated by the <n>
suffix) in the active channel.
Note: to query the index of a particular window, use the LAYout:IDENtify[:
WINDow]? command.
Suffix:
<n>
Return values:
<WindowName> String containing the name of a window.
Example:
LAY:WIND1:ADD? LEFT,MTAB
Result:
'2'
Adds a new window named '2' with a marker table to the left of
window 1.
.
Window
In the default state, the name of the window is its index.
LAY:WIND2:IDEN?
Queries the name of the result display in window 2.
Response:
'2'
Usage: Query only
LAYout:WINDow<n>:REMove
This command removes the window specified by the suffix <n> from the display in the
active channel.
The result of this command is identical to the LAYout:REMove[:WINDow] command.
Suffix:
<n>
Example:
Usage: Event
LAYout:WINDow<n>:REPLace <WindowType>
This command changes the window type of an existing window (specified by the suffix
<n>) in the active channel.
The effect of this command is identical to the LAYout:REPLace[:WINDow] command.
.
Window
LAY:WIND2:REM
Removes the result display in window 2.
To add a new window, use the LAYout:WINDow<n>:ADD? command.
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Retrieving results
6.4.3
Suffix:
<n>
.
Window
Setting parameters:
<WindowType> Type of measurement window you want to replace another one
with.
See LAYout:ADD[:WINDow]? on page 71 for a list of available
window types.
Example:
LAY:WIND2:REPL MTAB
Replaces the result display in window 2 with a marker table.
Usage: Setting only
Layout configuration in R&S FSW-K149
LAYout:SELect <SelectedLayout>
Sets and queries the window layout. The layout number increases with a new release
of the R&S FSW-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?........................................................................................77
[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
SENSe:CAPTure:COMPatible?
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6.5.2 Magnitude capture
Remote commands for HRP UWB measurements
Retrieving results
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
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:
.
1..n
Window
FETC:TRAC:HLIG:STAR:ALL?
.
1..n
Window
FETC2:TRAC:HLIG:STAR3?
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.
Suffix:
<n>
Return values:
<Result>
Example:
Usage: Query only
.
1..n
Window
FETC:TRAC:HLIG:STAT:ALL?
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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:
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:
.
1..n
Window
FETC:TRAC:HLIG:STAT3?
.
1..n
Window
FETC:TRAC:HLIG:STOP:ALL?
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>
<l> 1..n
Return values:
<Result> <numeric value>
Example:
Usage: Query only
.
1..n
Window
FETC2:TRAC:HLIG:STOP3?
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6.5.3 Packet insights
Remote commands for HRP UWB measurements
Retrieving results
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.
In accordance with IEEE 802.15.4, the LSB of each octet of the payload is output first.
Suffix:
<n>
Return values:
<Result>
Usage: Query only
Manual operation: See "Packet Insights" on page 17
.
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
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?
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?
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Remote commands for HRP UWB measurements
Retrieving results
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?
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?
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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>
Example:
Usage: Query only
FETCh:SUMMary:RANGing:SRMarker3:LOCation?
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6.6 Configuring the measurement
6.6.1 Input/output settings
Remote commands for HRP UWB measurements
Configuring the measurement
The following commands are required to configure the measurement in a remote environment.
● Input/output settings................................................................................................84
● Frontend configuration............................................................................................ 92
● Triggering measurements..................................................................................... 101
● Configuring data aquisition....................................................................................109
● Configuring burst/sync...........................................................................................112
● Configuring demodulation..................................................................................... 113
● Configuring evaluation range................................................................................ 115
● Configuring results................................................................................................ 118
The R&S FSW 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.
● RF input...................................................................................................................84
● Input from I/Q data files...........................................................................................88
● Configuring the outputs...........................................................................................90
6.6.1.1 RF input
INPut<ip>:ATTenuation:PROTection:RESet.........................................................................84
INPut<ip>:CONNector...................................................................................................... 85
INPut<ip>:COUPling.........................................................................................................85
INPut<ip>:DPATh.............................................................................................................86
INPut<ip>:FILTer:HPASs[:STATe].......................................................................................86
INPut<ip>:FILTer:YIG[:STATe]............................................................................................87
INPut<ip>:IMPedance.......................................................................................................87
INPut<ip>:SELect.............................................................................................................87
INPut<ip>:TYPE.............................................................................................................. 88
INPut<ip>:ATTenuation:PROTection:RESet
This command resets the attenuator and reconnects the RF input with the input mixer
for the R&S FSW 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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Remote commands for HRP UWB measurements
Configuring the measurement
Suffix:
<ip>
Example:
INPut<ip>:CONNector <ConnType>
Determines which connector the input for the measurement is taken from.
Suffix:
<ip>
Parameters:
<ConnType> RF
.
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
INP:ATT:PROT:RES
.
1 | 2
irrelevant
RF input connector
AIQI
Analog Baseband I connector
This setting is only available if the Analog Baseband interface
(R&S FSW-B71) is installed and active for input. It is not available for the R&S FSW67 or R&S FSW85.
RFPRobe
Active RF probe
*RST: RF
Example:
INPut<ip>:COUPling <CouplingType>
This command selects the coupling type of the RF input.
Suffix:
<ip>
Parameters:
<CouplingType> AC | DC
Example:
INP:CONN RF
Selects input from the RF input connector.
.
1 | 2
irrelevant
AC
AC coupling
DC
DC coupling
*RST: AC
INP:COUP DC
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Remote commands for HRP UWB measurements
Configuring the measurement
Manual operation: See "Input Coupling" on page 27
INPut<ip>:DPATh <DirectPath>
Enables or disables the use of the direct path for frequencies close to 0 Hz.
Suffix:
<ip>
Parameters:
<DirectPath> AUTO | OFF
Example:
Manual operation: See "Direct Path" on page 27
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 R&S FSW 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.)
.
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
Suffix:
<ip>
Parameters:
<State> ON | OFF | 0 | 1
Example:
Manual operation: See "High Pass Filter 1 to 3 GHz" on page 28
.
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.
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Remote commands for HRP UWB measurements
Configuring the measurement
INPut<ip>:FILTer:YIG[:STATe] <State>
Enables or disables the YIG filter.
Suffix:
<ip>
Parameters:
<State> ON | OFF | 0 | 1
Example:
INPut<ip>:IMPedance
This command selects the nominal input impedance of the RF input. In some applications, only 50 Ω are supported.
Suffix:
<ip>
Parameters:
<Impedance> 50 | 75
Example:
.
1 | 2
irrelevant
INP:FILT:YIG OFF
Deactivates the YIG-preselector.
<Impedance>
.
1 | 2
irrelevant
*RST: 50 Ω
Default unit: OHM
INP:IMP 75
Manual operation: See "Impedance" on page 27
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 FSW.
For R&S FSW85 models with two RF input connectors, you must select the input connector to configure first using INPut<ip>:TYPE.
Suffix:
<ip>
Parameters:
<Source> RF
.
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)
*RST: RF
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Remote commands for HRP UWB measurements
Configuring the measurement
Example:
INP:TYPE INP1
For R&S FSW85 models with two RF input connectors: selects
the 1.00 mm RF input connector for configuration.
INP:SEL RF
Manual operation: See "Radio Frequency State" on page 26
See "I/Q Input File State" on page 28
INPut<ip>:TYPE <Input>
The command selects the input path.
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
Parameters:
<Input> INPUT1
Selects RF input 1.
1 mm [RF Input] connector
INPUT2
Selects RF input 2.
For R&S FSW85 models with two RF input connectors:
1.85 mm [RF2 Input] connector
For all other models: not available
*RST: INPUT1
Example: //Select input path
INP:TYPE INPUT1
Manual operation: See "Radio Frequency State" on page 26
6.6.1.2 Input from I/Q data files
The input for measurements can be provided from I/Q data files. The commands
required to configure the use of such files are described here.
Useful commands for retrieving results described elsewhere:
●
INPut<ip>:SELect on page 87
Remote commands exclusive to input from I/Q data files:
INPut<ip>:FILE:PATH.......................................................................................................89
MMEMory:LOAD:IQ:STReam............................................................................................89
MMEMory:LOAD:IQ:STReam:AUTO..................................................................................90
MMEMory:LOAD:IQ:STReam:LIST?.................................................................................. 90
TRACe:IQ:FILE:REPetition:COUNt....................................................................................90
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Remote commands for HRP UWB measurements
Configuring the measurement
INPut<ip>:FILE:PATH <FileName>[, <AnalysisBW>]
This command selects the I/Q data file to be used as input for further measurements.
The I/Q data file must be in one of the following supported formats:
.iq.tar
●
.iqw
●
.csv
●
.mat
●
.wv
●
.aid
●
Only a single data stream or channel can be used as input, even if multiple streams or
channels are stored in the file.
For some file formats that do not provide the sample rate and measurement time or
record length, you must define these parameters manually. Otherwise the traces are
not visible in the result displays.
Suffix:
<ip>
.
1 | 2
irrelevant
Parameters:
<FileName> String containing the path and name of the source file.
The file extension is *.iq.tar.
<AnalysisBW> Optionally: The analysis bandwidth to be used by the measure-
ment. The bandwidth must be smaller than or equal to the bandwidth of the data that was stored in the file.
Default unit: HZ
Example:
INP:FILE:PATH 'C:\R_S\Instr\user\data.iq.tar'
Uses I/Q data from the specified file as input.
Example:
//Load an IQW file
INP:SEL:FIQ
INP:FILE:PATH 'C:\R_S\Instr\user\data.iqw'
//Define the sample rate
TRAC:IQ:SRAT 10MHz
//Define the measurement time
SENSe:SWEep:TIME 0.001001
//Start the measurement
INIT:IMM
Manual operation: See "Select I/Q data file" on page 29
MMEMory:LOAD:IQ:STReam <Channel>
Only available for files that contain more than one data stream from multiple channels:
selects the data stream to be used as input for the currently selected channel.
Automatic mode (MMEMory:LOAD:IQ:STReam:AUTO) is set to OFF.
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Remote commands for HRP UWB measurements
Configuring the measurement
Parameters:
<Channel> String containing the channel name.
Example:
MMEMory:LOAD:IQ:STReam:AUTO <State>
Only available for files that contain more than one data stream from multiple channels:
automatically defines which data stream in the file is used as input for the channel.
Parameters:
<State> ON | OFF | 0 | 1
MMEM:LOAD:IQ:STR?
//Result: 'Channel1','Channel2'
MMEM:LOAD:IQ:STR 'Channel2'
OFF | 0
The data stream specified by MMEMory:LOAD:IQ:STReam is
used as input for the channel.
ON | 1
The first data stream in the file is used as input for the channel.
Applications that support multiple data streams use the first data
stream in the file for the first input stream, the second for the
second stream etc.
*RST: 1
MMEMory:LOAD:IQ:STReam:LIST?
Returns the available channels in the currently loaded input file.
Example:
Usage: Query only
TRACe:IQ:FILE:REPetition:COUNt <RepetitionCount>
Determines how often the data stream is repeatedly copied in the I/Q data memory. If
the available memory is not sufficient for the specified number of repetitions, the largest possible number of complete data streams is used.
Parameters:
<RepetitionCount> integer
Example:
Manual operation: See "File Repetitions" on page 29
6.6.1.3 Configuring the outputs
The following commands are required to provide output from the R&S FSW.
MMEM:LOAD:IQ:STR?
//Result: 'Channel1','Channel2'
TRAC:IQ:FILE:REP:COUN 3
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Remote commands for HRP UWB measurements
Configuring the measurement
Configuring trigger input/output is described in Chapter 6.6.3.2, "Configuring the trigger
output", on page 106.
DIAGnostic:SERVice:NSOurce..........................................................................................91
OUTPut<up>:IF[:SOURce]................................................................................................91
SYSTem:SPEaker:VOLume.............................................................................................. 91
DIAGnostic:SERVice:NSOurce <State>
This command turns the 28 V supply of the BNC connector labeled [noise source
control] on the R&S FSW on and off.
Parameters:
<State> ON | OFF | 0 | 1
OFF | 0
Switches the function off
ON | 1
Switches the function on
Example:
DIAG:SERV:NSO ON
Manual operation: See "Noise Source Control" on page 31
OUTPut<up>:IF[:SOURce] <Source>
Defines the type of signal available at one of the output connectors of the R&S FSW.
Suffix:
.
<up>
Parameters:
<Source> IF
The measured IF value is available at the IF/VIDEO/DEMOD
output connector.
*RST: IF
Example:
OUTP:IF VID
Selects the video signal for the IF/VIDEO/DEMOD output connector.
Manual operation: See "Data Output" on page 30
SYSTem:SPEaker:VOLume <Volume>
This command defines the volume of the built-in loudspeaker for demodulated signals.
This setting is maintained for all applications.
The command is available in the time domain in Spectrum mode and in Analog Modulation Analysis mode.
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Remote commands for HRP UWB measurements
Configuring the measurement
Parameters:
<Volume> Percentage of the maximum possible volume.
Range: 0 to 1
*RST: 0.5
Example:
SYST:SPE:VOL 0
Switches the loudspeaker to mute.
6.6.2 Frontend configuration
The following commands are required to configure frequency and amplitude settings,
which represent the "frontend" of the measurement setup.
● Frequency............................................................................................................... 92
● Amplitude settings...................................................................................................93
● Scaling.................................................................................................................... 96
● Configuring the attenuation.....................................................................................99
6.6.2.1 Frequency
[SENSe:]FREQuency:CENTer........................................................................................... 92
[SENSe:]FREQuency:CENTer:STEP..................................................................................92
[SENSe:]FREQuency:CENTer:STEP:AUTO........................................................................93
[SENSe:]FREQuency:OFFSet...........................................................................................93
[SENSe:]FREQuency:CENTer <Frequency>
This command defines the center frequency.
Parameters:
<Frequency> The allowed range and f
is specified in the data sheet.
max
*RST: fmax/2
Default unit: Hz
Example:
FREQ:CENT 100 MHz
FREQ:CENT:STEP 10 MHz
FREQ:CENT UP
Sets the center frequency to 110 MHz.
Manual operation: See "Center Frequency" on page 33
[SENSe:]FREQuency:CENTer:STEP <StepSize>
This command defines the center frequency step size.
Parameters:
<StepSize> f
is specified in the data sheet.
max
Range: 1 to fMAX
*RST: 0.1 x span
Default unit: Hz
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Configuring the measurement
Example: //Set the center frequency to 110 MHz.
FREQ:CENT 100 MHz
FREQ:CENT:STEP 10 MHz
FREQ:CENT UP
Manual operation: See "Center Frequency Stepsize" on page 33
[SENSe:]FREQuency:CENTer:STEP:AUTO <State>
This command couples or decouples the center frequency step size to the span.
Parameters:
<State> ON | OFF | 0 | 1
*RST: 1
Example:
[SENSe:]FREQuency:OFFSet
This command defines a frequency offset.
If this value is not 0 Hz, the application assumes that the input signal was frequency
shifted outside the application. All results of type "frequency" will be corrected for this
shift numerically by the application.
Parameters:
<Offset> Range: -1 THz to 1 THz
Example:
Manual operation: See "Frequency Offset" on page 33
6.6.2.2 Amplitude settings
The following commands are required to configure the amplitude settings in a remote
environment.
FREQ:CENT:STEP:AUTO ON
Activates the coupling of the step size to the span.
<Offset>
*RST: 0 Hz
Default unit: HZ
FREQ:OFFS 1GHZ
Useful commands for amplitude settings described elsewhere:
●
INPut<ip>:COUPling on page 85
●
INPut<ip>:IMPedance on page 87
Remote commands exclusive to amplitude settings:
[SENSe:]ADJust:LEVel.....................................................................................................94
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RLEVel...............................94
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RLEVel:OFFSet.................. 94
INPut<ip>:EGAin[:STATe]..................................................................................................95
INPut<ip>:GAIN:STATe.....................................................................................................95
INPut<ip>:GAIN[:VALue]...................................................................................................96
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Configuring the measurement
[SENSe:]ADJust:LEVel
Initiates a single (internal) measurement that evaluates and sets the ideal reference
level for the current input data and measurement settings. Thus, the settings of the RF
attenuation and the reference level are optimized for the signal level. The R&S FSW is
not overloaded and the dynamic range is not limited by an S/N ratio that is too small.
Example:
Usage: Event
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RLEVel
<ReferenceLevel>
This command defines the reference level (for all traces in all windows).
With a reference level offset ≠ 0, the value range of the reference level is modified by
the offset.
Suffix:
<n>
<w> subwindow
<t> irrelevant
Parameters:
<ReferenceLevel> The unit is variable.
ADJ:LEV
.
irrelevant
Not supported by all applications
Range: see datasheet
*RST: 0 dBm
Default unit: DBM
Example:
Manual operation: See "Reference Level" on page 35
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RLEVel:OFFSet
<Offset>
This command defines a reference level offset (for all traces in all windows).
Suffix:
<n>
<w> subwindow
<t> irrelevant
Parameters:
<Offset> Range: -200 dB to 200 dB
Example:
DISP:TRAC:Y:RLEV -60dBm
.
irrelevant
Not supported by all applications
*RST: 0dB
Default unit: DB
DISP:TRAC:Y:RLEV:OFFS -10dB
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Configuring the measurement
Manual operation: See "Shifting the Display (Offset)" on page 35
INPut<ip>:EGAin[:STATe] <State>
Before this command can be used, the external preamplifier must be connected to the
R&S FSW. See the preamplifier's documentation for details.
When activated, the R&S FSW automatically compensates the magnitude and phase
characteristics of the external preamplifier in the measurement results.
Note that when an optional external preamplifier is activated, the internal preamplifier is
automatically disabled, and vice versa.
For R&S FSW85 models with two RF inputs, you must enable correction from the
external preamplifier for each input individually. Correction cannot be enabled for both
inputs at the same time.
When deactivated, no compensation is performed even if an external preamplifier
remains connected.
Suffix:
<ip>
Parameters:
<State> ON | OFF | 0 | 1
Example:
INPut<ip>:GAIN:STATe <State>
This command turns the internal preamplifier on and off. It requires the optional preamplifier hardware.
Note that if an optional external preamplifier is activated, the internal preamplifier is
automatically disabled, and vice versa.
If option R&S FSW-B22 is installed, the preamplifier is only active below 7 GHz.
.
1 | 2
irrelevant
OFF | 0
No data correction is performed based on the external preamplifier
ON | 1
Performs data corrections based on the external preamplifier
*RST: 0
INP:EGA ON
If option R&S FSW-B24 is installed, the preamplifier is active for all frequencies.
Suffix:
<ip>
Parameters:
<State> ON | OFF | 0 | 1
.
1 | 2
irrelevant
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Configuring the measurement
OFF | 0
Switches the function off
ON | 1
Switches the function on
*RST: 0
Example:
INP:GAIN:STAT ON
INP:GAIN:VAL 15
Switches on 15 dB preamplification.
Manual operation: See "Preamplifier" on page 36
INPut<ip>:GAIN[:VALue]
<Gain>
This command selects the "gain" if the preamplifier is activated (INP:GAIN:STAT ON,
see INPut<ip>:GAIN:STATe on page 95).
The command requires the additional preamplifier hardware option.
Suffix:
<ip>
.
1 | 2
irrelevant
Parameters:
<Gain> For all R&S FSW models except for R&S FSW85, the following
settings are available:
15 dB and 30 dB
All other values are rounded to the nearest of these two.
For R&S FSW85 models:
R&S FSW43 or higher:
30 dB
Default unit: DB
Example:
Manual operation: See "Preamplifier" on page 36
6.6.2.3 Scaling
Remote commands exclusive to scaling:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:AUTO ONCE...................... 97
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:MINimum............................97
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:MAXimum.......................... 97
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:PDIVision........................... 98
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RPOSition.......................... 98
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RVALue..............................98
INP:GAIN:STAT ON
INP:GAIN:VAL 30
Switches on 30 dB preamplification.
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Configuring the measurement
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:AUTO ONCE
Automatic scaling of the y-axis is performed once, then switched off again (for all
traces).
Suffix:
<n>
<t> irrelevant
Manual operation: See "Auto Scale Once" on page 38
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:MINimum
<Value>
This command defines the value at the bottom of the y-axis.
Suffix:
<n>
<w> irrelevant
<t> irrelevant
Parameters:
<Value> <numeric value>
Example: //Define y-axis level range
.
Window
.
Window
Default unit: Depends on the result display.
DISP:TRAC:Y:AUTO OFF
DISP:TRAC:Y:MIN -10DBM
DISP:TRAC:Y:MAX -110DBM
Manual operation: See "Defining Min and Max Values" on page 38
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:MAXimum
<Value>
This command defines the value at the top of the y-axis.
Suffix:
<n>
<w> irrelevant
<t> irrelevant
Parameters:
<Value> <numeric value>
Example: //Define y-axis level range
.
Window
Default unit: Depends on the result display.
DISP:TRAC:Y:AUTO OFF
DISP:TRAC:Y:MIN -10DBM
DISP:TRAC:Y:MAX -110DBM
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Configuring the measurement
Manual operation: See "Defining Min and Max Values" on page 38
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:PDIVision
<Value>
This remote command determines the grid spacing on the Y-axis for all diagrams,
where possible.
In spectrum displays, for example, this command is not available.
Suffix:
<n>
<w> subwindow
<t> irrelevant
Parameters:
<Value> numeric value WITHOUT UNIT (unit according to the result dis-
Example:
Manual operation: See "Range per Division" on page 39
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RPOSition
<Position>
This command defines the vertical position of the reference level on the display grid
(for all traces).
.
Window
Not supported by all applications
play)
Defines the range per division (total range = 10*<Value>)
*RST: depends on the result display
Default unit: DBM
DISP:TRAC:Y:PDIV 10
Sets the grid spacing to 10 units (e.g. dB) per division
The R&S FSW adjusts the scaling of the y-axis accordingly.
Suffix:
<n>
<w> subwindow
<t> irrelevant
Example:
Manual operation: See "Reference Position" on page 39
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RVALue <Value>
This command defines the reference value assigned to the reference position in the
specified window. Separate reference values are maintained for the various displays.
.
Window
Not supported by all applications
DISP:TRAC:Y:RPOS 50PCT
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Remote commands for HRP UWB measurements
Configuring the measurement
Suffix:
<n>
.
Window
<w> subwindow
<t> irrelevant
Parameters:
<Value> Default unit: DB
Example:
DISP:TRAC:Y:RVAL 0
Sets the value assigned to the reference position to 0 Hz
Manual operation: See "Reference Value" on page 39
6.6.2.4 Configuring the attenuation
INPut<ip>:ATTenuation.....................................................................................................99
INPut<ip>:ATTenuation:AUTO...........................................................................................99
INPut<ip>:EATT.............................................................................................................100
INPut<ip>:EATT:AUTO................................................................................................... 100
INPut<ip>:EATT:STATe...................................................................................................101
INPut<ip>:ATTenuation <Attenuation>
This command defines the total attenuation for RF input.
If you set the attenuation manually, it is no longer coupled to the reference level, but
the reference level is coupled to the attenuation. Thus, if the current reference level is
not compatible with an attenuation that has been set manually, the command also
adjusts the reference level.
Suffix:
<ip>
.
1 | 2
irrelevant
Parameters:
<Attenuation> Range: see data sheet
Increment: 5 dB (with optional electr. attenuator: 1 dB)
*RST: 10 dB (AUTO is set to ON)
Default unit: DB
Example:
INP:ATT 30dB
Defines a 30 dB attenuation and decouples the attenuation from
the reference level.
Manual operation: See "Attenuation Mode / Value" on page 35
INPut<ip>:ATTenuation:AUTO <State>
This command couples or decouples the attenuation to the reference level. Thus, when
the reference level is changed, the R&S FSW determines the signal level for optimal
internal data processing and sets the required attenuation accordingly.
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Configuring the measurement
Suffix:
<ip>
Parameters:
<State> ON | OFF | 0 | 1
Example:
Manual operation: See "Attenuation Mode / Value" on page 35
INPut<ip>:EATT
This command defines an electronic attenuation manually. Automatic mode must be
switched off (INP:EATT:AUTO OFF, see INPut<ip>:EATT:AUTO on page 100).
If the current reference level is not compatible with an attenuation that has been set
manually, the command also adjusts the reference level.
Suffix:
<ip>
.
1 | 2
irrelevant
*RST: 1
INP:ATT:AUTO ON
Couples the attenuation to the reference level.
<Attenuation>
.
1 | 2
irrelevant
Parameters:
<Attenuation> attenuation in dB
Range: see data sheet
Increment: 1 dB
*RST: 0 dB (OFF)
Default unit: DB
Example:
Manual operation: See "Using Electronic Attenuation" on page 36
INPut<ip>:EATT:AUTO <State>
This command turns automatic selection of the electronic attenuation on and off.
If on, electronic attenuation reduces the mechanical attenuation whenever possible.
Suffix:
<ip>
Parameters:
<State> ON | OFF | 0 | 1
INP:EATT:AUTO OFF
INP:EATT 10 dB
.
1 | 2
irrelevant
OFF | 0
Switches the function off
ON | 1
Switches the function on
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