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R&S® FSV-K30
Noise Figure Measurements
Operating Manual
(;ÚÙÌ2)
1176.7562.02 ─ 04
Operating Manual
Test & Measurement
Page 2
This manual describes the following R&S®FSV/FSVA options:
●
R&S FSV-K30 (1310.8355.02)
This manual describes the following R&S FSVA/FSV models with firmware version 3.30 and higher:
●
R&S®FSVA4 (1321.3008K05)
●
R&S®FSVA7 (1321.3008K08)
●
R&S®FSVA13 (1321.3008K14)
●
R&S®FSVA30 (1321.3008K31)
●
R&S®FSVA40 (1321.3008K41)
●
R&S®FSV4 (1321.3008K04)
●
R&S®FSV7 (1321.3008K07)
●
R&S®FSV13 (1321.3008K13)
●
R&S®FSV30 (1321.3008K30)
●
R&S®FSV40 (1321.3008K39/1321.3008K40)
It also applies to the following R&S®FSV models. However, note the differences described in Chapter 1.4,
"Notes for Users of R&S FSV 1307.9002Kxx Models", on page 9.
●
R&S®FSV3 (1307.9002K03)
●
R&S®FSV7 (1307.9002K07)
●
R&S®FSV13 (1307.9002K13)
●
R&S®FSV30 (1307.9002K30)
●
R&S®FSV40 (1307.9002K39/1307.9002K40)
© 2017 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: +49 89 41 29 - 0
Fax: +49 89 41 29 12 164
Email: info@rohde-schwarz.com
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 their owners.
The following abbreviations are used throughout this manual: R&S®FSV/FSVA is abbreviated as R&S FSV/FSVA.
Page 3
R&S® FSV-K30
1 Preface.................................................................................................... 5
1.1 Documentation Overview............................................................................................. 5
1.2 Conventions Used in the Documentation...................................................................6
1.3 How to Use the Help System........................................................................................7
1.4 Notes for Users of R&S FSV 1307.9002Kxx Models.................................................. 9
2 Introduction to R&S FSV-K30 & Noise Measurements.....................10
3 Measurement Basics........................................................................... 11
3.1 Measurement Types....................................................................................................11
3.2 Measurement Modes of the Noise Figure Measurement.........................................13
3.3 Measurement Settings Overview...............................................................................14
Contents
Contents
3.4 Result Displays........................................................................................................... 15
3.5 Status Bar Information............................................................................................... 18
3.6 Calibration................................................................................................................... 18
3.7 Selecting the Appropriate Filter Type....................................................................... 18
3.8 List of Available RRC and Channel Filters............................................................... 19
3.9 ASCII File Export Format............................................................................................21
3.10 Overview of Generators Supported by the R&S FSVA/FSV....................................24
4 Measurement Examples (R&S FSV-K30)........................................... 27
4.1 Direct Measurements..................................................................................................27
4.2 Frequency-Converting Measurements......................................................................30
5 Instrument Functions of Noise Figure Measurements (R&S FSV-
K30)....................................................................................................... 39
5.1 Editing Tables..............................................................................................................39
5.2 Working With Limit Lines........................................................................................... 39
6 Menu and Softkey Description (R&S FSV-K30).................................41
6.1 Softkeys and Settings of the Noise Menu (R&S FSV-K30)......................................41
6.2 Softkeys of the Frequency Menu (R&S FSV-K30).................................................... 60
6.3 Softkeys of the Span Menu (R&S FSV-K30)............................................................. 61
6.4 AMPT key..................................................................................................................... 62
6.5 BW key......................................................................................................................... 62
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R&S® FSV-K30
6.6 Softkeys of the Sweep Menu (R&S FSV-K30)...........................................................62
6.7 Softkeys of the Trace Menu (R&S FSV-K30).............................................................63
6.8 Softkeys of the Marker Menu (R&S FSV-K30).......................................................... 65
6.9 Softkeys of the Marker To Menu (R&S FSV-K30)..................................................... 65
6.10 Softkeys of the Lines Menu (R&S FSV-K30).............................................................66
6.11 Softkeys of the Input/Output Menu (R&S FSV-K30).................................................68
7 Status Reporting System (R&S FSV-K30)..........................................71
7.1 STATus:OPERation Register..................................................................................... 71
7.2 STATus:QUEStionable Register................................................................................ 71
7.3 STATus:QUEStionable:CORRection Register..........................................................72
8 Remote Control Commands................................................................73
8.1 Notation........................................................................................................................73
Contents
8.2 CALCulate Subsystem (Noise Figure, R&S FSV-K30)............................................. 76
8.3 CONFigure Subsystem (Noise Figure, R&S FSV-K30)............................................ 86
8.4 DISPlay Subsystem (Noise Figure, K30)...................................................................89
8.5 FETCh Subsystem (Noise Figure, K30).....................................................................96
8.6 FORMat Subsystem.................................................................................................... 98
8.7 INPut Subsystem.........................................................................................................99
8.8 INITiate Subsystem................................................................................................... 101
8.9 INSTrument Subsystem (Noise Figure, R&S FSV-K30)......................................... 102
8.10 SENSe Subsystem (Noise Figure, R&S FSV-K30)..................................................102
8.11 SOURce Subsystem..................................................................................................115
8.12 STATus Subsystem (Noise Figure, R&S FSV-K30)................................................118
8.13 SYSTem Subsystem (Noise Figure, R&S FSV-K30)...............................................120
9 Error Reporting and Error Messages............................................... 126
List of Commands..............................................................................127
Index....................................................................................................130
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R&S® FSV-K30
1 Preface
Preface
Documentation Overview
1.1 Documentation Overview
This section provides an overview of the R&S FSVA/FSV user documentation. Unless
specified otherwise, you find the documents on the R&S FSVA/FSV product page at:
www.rohde-schwarz.com/manual/FSVA
1.1.1 Quick Start Guide
Introduces the R&S FSVA/FSV 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. A printed version is delivered with the instrument.
A PDF version is available for download on the Internet.
1.1.2 Operating Manuals and Help
Separate operating manuals are provided for the base unit and the software options:
●
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.
●
Software option manual
Contains the description of the specific functions of an option. Basic information on
operating the R&S FSVA/FSV is not included.
The contents of the operating manuals are available as help in the R&S FSVA/FSV.
The help offers quick, context-sensitive access to the complete information for the
base unit and the software options.
All operating manuals are also available for download or for immediate display on the
Internet.
1.1.3 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).
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R&S® FSV-K30
Preface
Conventions Used in the Documentation
1.1.4 Instrument Security Procedures
Deals with security issues when working with the R&S FSVA/FSV in secure areas. It is
available for download on the Internet.
1.1.5 Basic Safety Instructions
Contains safety instructions, operating conditions and further important information.
The printed document is delivered with the instrument.
1.1.6 Data Sheets and Brochures
The data sheet contains the technical specifications of the R&S FSVA/FSV. It also lists
the options and their order numbers as well as optional accessories.
The brochure provides an overview of the instrument and deals with the specific characteristics.
See www.rohde-schwarz.com/brochure-datasheet/FSV
1.1.7 Release Notes and Open Source Acknowledgment (OSA)
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/FSV
1.1.8 Application Notes, Application Cards, White Papers, etc.
These documents deal with special applications or background information on particular topics.
See www.rohde-schwarz.com/appnlication/FSV
1.2 Conventions Used in the Documentation
1.2.1 Typographical Conventions
The following text markers are used throughout this documentation:
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R&S® FSV-K30
Preface
How to Use the Help System
Convention Description
"Graphical user interface elements"
KEYS Key names are written in capital letters.
File names, commands,
program code
Input Input to be entered by the user is displayed in italics.
Links Links that you can click are displayed in blue font.
"References" References to other parts of the documentation are enclosed by quota-
1.2.2 Conventions for Procedure Descriptions
All names of graphical user interface elements on the screen, such as
dialog boxes, menus, options, buttons, and softkeys are enclosed by
quotation marks.
File names, commands, coding samples and screen output are distinguished by their font.
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.
1.2.3 Notes on Screenshots
When describing the functions of the product, we use sample screenshots. These
screenshots are meant to illustrate as much 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.
1.3 How to Use the Help System
Calling context-sensitive and general help
► To display the general help dialog box, press the HELP key on the front panel.
The help dialog box "View" tab is displayed. A topic containing information about
the current menu or the currently opened dialog box and its function is displayed.
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R&S® FSV-K30
Preface
How to Use the Help System
For standard Windows dialog boxes (e.g. File Properties, Print dialog etc.), no contextsensitive help is available.
► If the help is already displayed, press the softkey for which you want to display
help.
A topic containing information about the softkey and its function is displayed.
If a softkey opens a submenu and you press the softkey a second time, the submenu
of the softkey is displayed.
Contents of the help dialog box
The help dialog box contains four tabs:
●
"Contents" - contains a table of help contents
●
"View" - contains a specific help topic
●
"Index" - contains index entries to search for help topics
●
"Zoom" - contains zoom functions for the help display
To change between these tabs, press the tab on the touchscreen.
Navigating in the table of contents
●
To move through the displayed contents entries, use the UP ARROW and DOWN
ARROW keys. Entries that contain further entries are marked with a plus sign.
●
To display a help topic, press the ENTER key. The "View" tab with the corresponding help topic is displayed.
●
To change to the next tab, press the tab on the touchscreen.
Navigating in the help topics
●
To scroll through a page, use the rotary knob or the UP ARROW and DOWN
ARROW keys.
●
To jump to the linked topic, press the link text on the touchscreen.
Searching for a topic
1. Change to the "Index" tab.
2. Enter the first characters of the topic you are interested in. The entries starting with
these characters are displayed.
3. Change the focus by pressing the ENTER key.
4. Select the suitable keyword by using the UP ARROW or DOWN ARROW keys or
the rotary knob.
5. Press the ENTER key to display the help topic.
The "View" tab with the corresponding help topic is displayed.
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R&S® FSV-K30
Preface
Notes for Users of R&S FSV 1307.9002Kxx Models
Changing the zoom
1. Change to the "Zoom" tab.
2. Set the zoom using the rotary knob. Four settings are available: 1-4. The smallest
size is selected by number 1, the largest size is selected by number 4.
Closing the help window
► Press the ESC key or a function key on the front panel.
1.4 Notes for Users of R&S FSV 1307.9002Kxx Models
Users of R&S FSV 1307.9002Kxx models should consider the following differences to
the description of the newer R&S FSVA/FSV 1321.3008Kxx models:
●
Functions that are based on the Windows 10 operating system (e.g. printing or setting up networks) may have a slightly different appearance or require different settings on the Windows XP based models. For such functions, refer to the Windows
documentation or the documentation originally provided with the R&S FSV instrument.
●
The R&S FSV 1307.9002K03 model is restricted to a maximum frequency of
3 GHz, whereas the R&S FSVA/FSV1321.3008K04 model has a maximum frequency of 4 GHz.
●
The bandwidth extension option R&S FSV-B160 (1311.2015.xx) is not available for
the R&S FSV 1307.9002Kxx models. The maximum usable I/Q analysis bandwidth
for these models is 28 MHz, or with option R&S FSV-B70, 40 MHz.
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R&S® FSV-K30
2 Introduction to R&S FSV-K30 & Noise Mea-
Introduction to R&S FSV-K30 & Noise Measurements
surements
The use of an R&S FSV spectrum analyzer with its high sensitivity and level accuracy
enables the accurate and reproducible measurement of the noise figure of a Device
Under Test; for example, of low-noise FET amplifier circuits with noise figures of less
than 1 dB. Compared with specialist noise-measurement instruments, the properties of
the analyzer are ideal for noise measurements:
●
Different configurations of the sweep number and sweep time for the level measurement also allows the noise figure (and even the gain) of the DUT to be determined even at low frequencies.
●
The high dynamic range of the analyzer enables measurements on highly amplifying DUTs.
●
The frequency range of the analyzer can be fully utilised as a measurement range.
R&S FSV-K30 makes full use of the features and accuracy of the spectrum analyzer to
provide accurate and flexible noise measurements that are very easy to use.
Overview of Firmware Option R&S FSV-K30
This section contains all information required for operation of an R&S FSVA/FSV
equipped with Application Firmware R&S FSV-K30. It covers operation via menus and
the remote control commands for accurate and flexible noise measurement functions.
This section consists of the following chapters:
●
Measurement Basics
Provides basic knowledge on performing noise measurements
●
Measurement Examples (R&S FSV-K30)
Explains some basic noise figure measurement examples.
●
Instrument Functions of Noise Figure Measurements (R&S FSV-K30)
Describes the instrument functions of noise figure measurements and provides further information.
●
Remote Control Commands
Describes all remote control commands defined noise figure measurements.
●
Error Reporting and Error Messages
Contains device-specific error messages for R&S FSV-K30.
This part of the documentation includes only functions of the Application Firmware
R&S FSV-K30. For all other descriptions, please refer to the description of the base
unit at the beginning of the documentation.
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R&S® FSV-K30
3 Measurement Basics
3.1 Measurement Types....................................................................................................11
3.2 Measurement Modes of the Noise Figure Measurement.........................................13
3.3 Measurement Settings Overview...............................................................................14
3.4 Result Displays........................................................................................................... 15
3.5 Status Bar Information............................................................................................... 18
3.6 Calibration................................................................................................................... 18
3.7 Selecting the Appropriate Filter Type....................................................................... 18
3.8 List of Available RRC and Channel Filters............................................................... 19
3.9 ASCII File Export Format............................................................................................21
Measurement Basics
Measurement Types
This section provides background information on measurements and displayed information.
3.10 Overview of Generators Supported by the R&S FSVA/FSV....................................24
3.1 Measurement Types
Three types of measurements are possible:
●
Frequency list measurement
●
Fixed frequency measurement
●
Single frequency measurement
Frequency list measurement
A measurement is performed at each of the frequencies listed in the frequency list. The
noise figure of the DUT across a user-specified range of frequencies is measured. In
single sweep mode, each frequency point is measured once until the measurement is
complete. In continuous sweep mode, one frequency point after the other is measured
in turn until the measurement is aborted.
The frequency list is defined in the "Frequency Table" in the "Frequency Settings" dialog box (see "Frequency Settings" on page 45). Two methods are possible:
●
The list is generated according to the start, stop and step frequencies. The first
value in the list is the "Start Freq". For each subsequent value, the "Step Freq" is
added until the "Stop Freq" is reached. If the "Stop Freq" is lower than the "Start
Freq", the "Step Freq" is subtracted from the "Start Freq" for each subsequent
value. A maximum of 171 list entries is generated. If further entries would be
required to reach the "Stop Freq", an error message is displayed. If the step frequency is larger than the difference between the start frequency and the stop frequency, the "Frequency Table" and the "Frequency List Results" (result display)
just contain the start and stop frequency.
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R&S® FSV-K30
Measurement Basics
Measurement Types
●
The list is generated according to the center frequency, span, and number of
sweep points. The number of "Sweep points" defines the number of entries in the
frequency table. The start frequency is "Center Freq" - "Span"/2, the stop frequency is "Center Freq" + "Span"/2. The values inbetween are distributed evenly.
For Digital IQ mode, only this method can be used to define the frequency list.
The results are displayed in a table ( "Frequency List Results") or graphically, depending on the display configuration.
Remote commands:
To configure the frequency list:
[SENSe:]FREQuency:STARt on page 113
[SENSe:]FREQuency:STOP on page 113
[SENSe:]FREQuency:STEP on page 113
or
[SENSe:]FREQuency:CENTer on page 112
[SENSe:]FREQuency:SPAN on page 113
[SENSe:]SWEep:POINts on page 114
To start the measurement:
CONFigure:LIST:CONTinuous on page 88 or
CONFigure:LIST:SINGle on page 88
INIT
To query the results:
FETCh:ARRay:NOISE:FIGure? on page 97
FETCh:ARRay:NOISE:GAIN? on page 97
FETCh:ARRay:NOISE:TEMPerature? on page 97
Fixed frequency measurement
A continuous measurement is performed at the single frequency currently selected in
the "Frequency List Results" (see also Fix Freq softkey in the "Sweep" menu). This
measurement can only be performed after an initial frequency list or single frequency
measurement.
The results are displayed beneath the original "Frequency List Results" in the "Fixed
Frequency (Meter)" area.
Remote commands:
To configure the fixed frequency:
[SENSe:]FREQuency[:CW|:FIXed] on page 111
To start the measurement:
CONFigure:SINGle on page 88
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R&S® FSV-K30
Measurement Basics
Measurement Modes of the Noise Figure Measurement
INIT
To query the results:
FETCh:SCALar:NOISE:FIGure? on page 98
FETCh:SCALar:NOISE:GAIN? on page 98
FETCh:SCALar:NOISE:TEMPerature? on page 98
Single frequency measurement
A measurement is performed at a specified single frequency, either once or continuously. Thus, the individual frequency can be investigated in more detail, for example to
see the effect of dynamic changes to the noise figure of the DUT at a particular frequency. An initial list measurement is not necessary.
The frequency is defined by activating the "Single Freq" option and entering the frequency in the "Start Freq" field in the "Frequency Settings" dialog box (see "Frequency
Settings" on page 45). The "Frequency Table" is reduced to a single entry. In effect,
the single frequency measurement is a list measurement reduced to a single list entry.
The result of a fixed frequency measurement is displayed in the result table only, not
graphically.
Remote commands:
To configure the single frequency:
[SENSe:]FREQuency:STARt on page 113
To start the measurement:
CONFigure:FREQ:CONTinuous on page 87 or
CONFigure:FREQ:SINGle on page 87
INIT
To query the results:
FETCh:ARRay:NOISE:FIGure? on page 97
FETCh:ARRay:NOISE:GAIN? on page 97
FETCh:ARRay:NOISE:TEMPerature? on page 97
3.2 Measurement Modes of the Noise Figure Measurement
Noise measurements are performed on many different types of device under test
(DUT). The type of DUT to be measured determines the test setup and also how the
frequency list is to be generated. To support these different types of DUT, the following
different noise figure measurement modes are available:
●
Direct measurement
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R&S® FSV-K30
Measurement Basics
Measurement Settings Overview
●
Frequency-converting measurement
– Fixed LO Upconverter, IF = RF + LO
– Fixed LO Downconverter, IF = abs(RF - LO)
– Fixed IF Upconverter, LO = abs(RF – IF)
– Fixed IF Downconverter, LO = RF + IF
●
Digital IQ; for digital baseband input using the optional R&S FSV-B17 interface;
Using the Digital Baseband interface for input, the digital baseband signal from the
digital interface is used for measurement, rather than the digitalized IF signal.
In this mode, RF attenuation, a Preamplifier and calibration are not available. The
frequency list is defined by a center frequency, a span and a number of sweep
points (see "Frequency Settings" on page 45).
For details see the Digital Baseband Interface (R&S FSV-B17) description of the
base unit.
The setup for the different measurement types is described by the "Schematic Overview" softkey. The measurement mode is set in the "Frequency Settings" dialog box,
"Mode" field (see "Mode" on page 46).
For details on the measurement types see also Chapter 4, "Measurement Examples
(R&S FSV-K30)", on page 27.
3.3 Measurement Settings Overview
The overall measurement settings used to obtain the current measurement results are
displayed in the diagram header at the top of the display (see Figure 3-1). The following settings are listed:
Setting Defined in dialog
box
Auto Level Measurement Set-
tings
Ref Level Measurement Set-
tings
Full Scale Lvl. Measurement Set-
tings
Sample Rate Measurement Set-
tings
Att Measurement Set-
tings
Description
Enable/Disable automatic reference level
Set reference level
Level that corresponds to an IQ sample with the magnitude "1"
(for digital input only)
Input sample rate from the IQ signal source (for digital input
only)
Set RF attenuation
Preamplifier Measurement Set-
tings
RBW Measurement Set-
tings
SWT Measurement Set-
tings
Enable/disable preamplifier
Set RBW
Set sweep time
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R&S® FSV-K30
Measurement Basics
Result Displays
Setting Defined in dialog
box
AVG Measurement Set-
tings
Noise Source ENR Settings Set constant ENR or ENR table
Serial Nr. ENR Settings Reserved for serial number of the noise source (currently not
ENR (Const) ENR Settings Set ENR value (dB), refers to the receive frequency (RF)
2nd Stage Corr Measurement Set-
tings
Mode Frequency Settings Set measurement mode
Image Rej Frequency Settings Set suppression applied to the second sideband (Image Rej)
Fixed LO Frequency Settings Set Local oscillator frequency (Hz), only for frequency-convert-
Fixed IF Frequency Settings Set IF frequency for Fixed IF measurements
LO Source Frequency Settings External generator type controlling the LO (requires R&S FSV-
Description
Set number of measurement sweeps over which the average is
taken
available)
Enable/disable 2nd Stage Correction
ing measurements
B10 option); only displayed when "Automatic Control" is
selected (see "Automatic Control" on page 54).
Figure 3-1: Measurement settings for the noise figure measurements (example)
3.4 Result Displays
The measurement results are represented according to the measurement type (see
Chapter 3.1, "Measurement Types", on page 11).
Frequency list results
The measurement results for all frequencies defined in the "Frequency Table" are displayed as a graph or a table, depending on the currently selected result display (see
"Display Graph/List" on page 63 softkey).
(See Figure 3-3 and Figure 3-2.)
The measurement results are updated as the measurement is in progress. Under "Current Value", the details of the currently selected frequency in the "Frequency List
Results" are displayed.
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R&S® FSV-K30
Measurement Basics
Result Displays
Figure 3-2: Graphical result display (example)
Figure 3-3: Result display table (example)
The following information is displayed in the table:
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R&S® FSV-K30
Measurement Basics
Result Displays
Column Description
Used settings
RF Receive frequency at the DUT at which the values in this row of the table were mea-
sured (Hz).
LO Local oscillator frequency (Hz) - not displayed for direct or Digital IQ measurements
IF Intermediate frequency (Hz) - not displayed for direct or Digital IQ measurements
Results
NF Noise figure measured (dB)
Noise Temp Noise temperature (K) derived from measured noise figure
Gain Gain measured (dB); not available when using the Digital Baseband Interface
(R&S FSV-B17)
Fixed frequency results
Under "Fixed Frequency (Meter)", the measurement results for the fixed frequency
measurement are displayed and continuously updated (see also Chapter 3.1, "Mea-
surement Types", on page 11). The "Frequency List Results" do not change - these are
the results of the last frequency list measurement.
During a running measurement, the "Fixed Frequency (Meter)" area displays the current measurement value.
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R&S® FSV-K30
Measurement Basics
Selecting the Appropriate Filter Type
3.5 Status Bar Information
The status bar displays the following information:
Parameter values If a parameter in a settings dialog box is selected, the minimum
Measurement status During the measurement, the current measurement status
Error messages red background
Warning messages yellow background
3.6 Calibration
The calibration measures the noise introduced to a signal by the spectrum analyzer
itself to compensate it in measurements on a device under test. This compensation is
called 2nd stage correction, because the spectrum analyzer is the second stage of the
test setup, the DUT being the first stage.
and maximum values for the selected parameter are displayed.
If a Boolean or an enumarated parameter in a dialog box is
selected, the minimum and maximum values are displayed as
N/A for not applicable.
along with detailed information about the progress is displayed.
If the second stage correction is activated (see "2nd Stage Correction" on page 51),
a separate calibration measurement is performed before the main measurement (for
details on the measurement setup refer to the base unit Operating Manual on CDROM, chapter "Advanced Measurement Examples"). The data measured in the calibration measurement are used for compensation in the main measurement.
It is strongly recommended that you perform calibration before running measurements
(see "Cal" on page 60). You can run measurements in an uncalibrated status, but the
measurement results will not be corrected for any noise introduced by the spectrum
analyzer itself.
If the list of receive frequencies (RF) is changed, at which the measurements are performed, calibration is necessary again to ensure that calibration data is available for
every measurement step. For details on frequency settings refer to "Frequency Set-
tings" on page 45.
Calibration data can be saved and recalled at any time via the SAVE/RCL key (for
details refer to the base unit description).
It is also included if "All Traces" are stored.
3.7 Selecting the Appropriate Filter Type
All resolution bandwidths are realized with digital filters.
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R&S® FSV-K30
Measurement Basics
List of Available RRC and Channel Filters
The video filters are responsible for smoothing the displayed trace. Using video bandwidths that are small compared to the resolution bandwidth, only the signal average is
displayed and noise peaks and pulsed signals are repressed. If pulsed signals are to
be measured, it is advisable to use a video bandwidth that is large compared to the
resolution bandwidth (VBW * 10 x RBW) for the amplitudes of pulses to be measured
correctly.
The following filter types are available:
●
Normal (3dB) (Gaussian) filters
The Gaussian filters are set by default. The available bandwidths are specified in
the data sheet.
●
CISPR (6 dB) filters
●
MIL Std (6 dB) filters
Note that the 6 dB bandwidths are available only with option R&S FSV-K54.
●
Channel filters
For details see Chapter 3.8, "List of Available RRC and Channel Filters",
on page 19 .
Channel filters do not support FFT mode.
●
RRC filters
For details see Chapter 3.8, "List of Available RRC and Channel Filters",
on page 19 .
RRC filters do not support FFT mode.
●
5-Pole filters
The available bandwidths are specified in the data sheet.
5-Pole filters do not support FFT mode.
3.8 List of Available RRC and Channel Filters
For power measurement a number of especially steep-edged channel filters are available (see the following table). The indicated filter bandwidth is the 3 dB bandwidth. For
RRC filters, the fixed roll-off factor (a) is also indicated.
Table 3-1: Filter types
Filter Bandwidth Filter Type Application
100 Hz CFILter
200 Hz CFILter
300 Hz CFILter
500 Hz CFILter
1 kHz CFILter
1.5 kHz CFILter
2 kHz CFILter
2.4 kHz CFILter SSB
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R&S® FSV-K30
Measurement Basics
List of Available RRC and Channel Filters
Filter Bandwidth Filter Type Application
2.7 kHz CFILter
3 kHz CFILter
3.4 kHz CFILter
4 kHz CFILter DAB, Satellite
4.5 kHz CFILter
5 kHz CFILter
6 kHz CFILter
6 kHz, a=0.2 RRC APCO
7.5 kHz CFILter
8.5 kHz CFILter ETS300 113 (12.5 kHz channels)
9 kHz CFILter AM Radio
10 kHz CFILter
12.5 kHz CFILter CDMAone
14 kHz CFILter ETS300 113 (20 kHz channels)
15 kHz CFILter
16 kHz CFILter ETS300 113 (25 kHz channels)
18 kHz, a=0.35 RRC TETRA
20 kHz CFILter
21 kHz CFILter PDC
24.3 kHz, a=0.35 RRC IS 136
25 kHz CFILter APCO 25-P2
30 kHz CFILter CDPD, CDMAone
50 kHz CFILter
100 kHz CFILter
150 kHz CFILter FM Radio
192 kHz CFILter PHS
200 kHz CFILter GSM
300 kHz CFILter
500 kHz CFILter J.83 (8-VSB DVB, USA); RF ID 14333
1 MHz CFILter CDMAone
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R&S® FSV-K30
Measurement Basics
ASCII File Export Format
Filter Bandwidth Filter Type Application
1.228 MHz CFILter CDMAone
1.28 MHz, a=0.22 RRC TD-SCDMA
1.5 MHz CFILter DAB
2 MHz CFILter
3 MHz CFILter
3.75 MHz CFILter
3.84 MHz, a=0.22 RRC W-CDMA 3GPP
4.096 MHz, a=0.22 RRC W-CDMA NTT DOCoMo
5 MHz CFILter
20 MHz CFILter
28 MHz CFILter
40 MHz CFILter
3.9 ASCII File Export Format
The data of the file header consist of three columns, each separated by a semicolon:
parameter name; numeric value; basic unit. The data section starts with the keyword
"Trace <n>" (<n> = number of stored trace), followed by the measured data in one or
several columns (depending on measurement) which are also separated by a semicolon.
Exporting a single trace vs exporting all traces
Note that the file containing the trace data has a slightly different structure when you
export all traces compared to exporting a single trace only. The differences are indicated in the tables below.
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R&S® FSV-K30
Blue font: Information provided when you export a single trace
Green font: Information provided when you export all traces
Black font: Information provided regardless of the export mode
Header
Type; <instrument_model>; Instrument model
Version;1.00; Firmware version
Date;01. Jan 3000; Date of data set storage
Mode;Receiver; Application
Start;150000.000000;Hz Start frequency of the scan
Stop;100000000.000000;Hz; Stop frequency of the scan
X-Axis;LIN;
Detector;Average; Detector type
X-Unit;Hz;
Y-Unit;dBµV;
Scan Count;1;
Transducer;;;;;;;;
Scale of the x-axis
Unit of the x-axis
Unit of the y-axis
Scan count
Transducer information
Measurement Basics
ASCII File Export Format
Data section (scan ranges)
Scan 1:
Start;150000.000000;Hz; Start frequency of the scan range
Stop;29998500.000000;Hz; Stop frequency of the scan range
Step;4500.000000;Hz; Frequency stepsize applied in the scan range
RBW;9000.000000;Hz; Measurement bandwidth applied in the scan range
Meas Time;0.001000;s; Measurement time in the scan range
Auto Ranging;OFF; State of the auto ranging feature
RF Att;10.000000;dB; Attenuation applied in the scan range
Auto Preamp;OFF;
Preamp;0.000000;dB;
RF Input;1; RF input used in the scan range
Scan 2:
(…)
Data section (traces)
Trace 1:
Trace Mode;CLR/WRITE; Trace mode
Detector;MAX PEAK; Detector type
X-Unit;Hz; Unit of the x-axis
Y-Unit;Hz; Unit of the y-axis
Values;1343; Number of measurement points
150000.000000;3.541122;
154500.000000;5.776306;[...]
Trace 2:
(…)
Preamplifier information for the scan range
String of results
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R&S® FSV-K30
Blue font: Information provided when you export a single trace
Green font: Information provided when you export all traces
Black font: Information provided regardless of the export mode
Header
Type; <instrument_model>; Instrument model
Version;1.00; Firmware version
Date;01. Jan 3000; Date of data set storage
Mode;Analyzer; Application
Center Freq;100000000.000000; Center frequency
Freq Offset;0.000000;Hz; Frequency offset
Span;10000000000.000000;Hz;
X-Axis;LIN; Scale of the x-axis
Start;150000.000000:Hz;
Stop;2500000.000000;Hz;
Ref Level;97.000000;dBµV;
Level Offset;0.000000;Hz;
Ref Position;100.000000;%; Reference position
Y-Axis;LOG; Scale of the y-axis
Level Range;100.000000;dB; Range of the y-axis
Rf Att;10.000000;dB; RF attenuation
RBW;3000000.000000;Hz; Resolution bandwidth
VBW;300000.000000;Hz; Video bandwidth
SWT;0.002000;s; Sweep time
Trace mode;CLR/WRITE; Trace mode
Detector;AUTOPEAK; Detector type
X-Unit;Hz; Unit of the x-axis
Y-Unit;Hz; Unit of the y-axis
Preamplifier;OFF; State of the preamplifier
Transducer;OFF; Transducer information
Sweep Count;0; Sweep / average count
Frequency span
Start frequency
Stop frequency
Reference level
Reference level offset
Measurement Basics
ASCII File Export Format
Data section (traces)
Trace 1:
Trace Mode;CLR/WRITE; Trace mode
Detector;MAX PEAK; Detector type
X-Unit;Hz; Unit of the x-axis
Y-Unit;Hz; Unit of the y-axis
Preamplifier;OFF; State of the preamplifier
Transducer;OFF; Transducer information
Values;691; Number of measurement points
150000.000000;3.541122;
154500.000000;5.776306;[...]
Trace 2:
(…)
String of results
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R&S® FSV-K30
Measurement Basics
Overview of Generators Supported by the R&S FSVA/FSV
3.10 Overview of Generators Supported by the
R&S FSVA/FSV
The R&S SMA and R&S SMU require the following firmware versions:
R&S SMA: V2.10.x or higher
R&S SMU: V1.10 or higher
Generator Interface Type Generator Min
Freq
SMA01A TTL 9 kHz 3.0 GHz -145 +30
SMBV100A3 TTL 9 kHz 3.2 GHz -145 +30
SMBV100A6 TTL 9 kHz 6.0 GHz -145 +30
SMC100A1 TTL 9 kHz 1.1 GHz -120 +30
SMC100A3 TTL 9 kHz 3.2 GHz -145 +30
SME02 TTL 5 kHz 1.5 GHz -144 +16
Generator Max
Freq
Generator Min
Power
dBm
Generator Max
Power
dBm
SME03 TTL 5 kHz 3.0 GHz -144 +16
SME06 TTL 5 kHz 6.0 GHz -144 +16
SMG GPIB 100 kHz 1.0 GHz -137 +13
SMGL GPIB 9 kHz 1.0 GHz -118 +30
SMGU GPIB 100 kHz 2.16 GHz -140 +13
SMH GPIB 100 kHz 2.0 GHz -140 +13
SMHU GPIB 100 kHz 4.32 GHz -140 +13
SMIQ02B TTL 300 kHz 2.2 GHz -144 +13
SMIQ02E GPIB 300 kHz 2.2 GHz -144 +13
SMIQ03B TTL 300 kHz 3.3 GHz -144 +13
SMIQ03E GPIB 300 kHz 3.3 GHz -144 +13
SMIQ04B TTL 300 kHz 4.4 GHz -144 +10
SMIQ06B TTL 300 kHz 6.4 GHz -144 +10
SML01 GPIB 9 kHz 1.1 GHz -140 +13
1) Requires the option SMR-B11 to be fitted.
2) Maximum/minimum power depends on presence of Option SMR-B15/-B17 and set frequency range. For
more details see SMR data sheet.
3) Maximum/minimum power depends on presence of Option SMP-B15/-B17 and set frequency range. For
more details see SMP data sheet.
4) Requires firmware version V3.20.200 or higher on the signal generator
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R&S® FSV-K30
Measurement Basics
Overview of Generators Supported by the R&S FSVA/FSV
Generator Interface Type Generator Min
Freq
Generator Max
Freq
Generator Min
Power
dBm
Generator Max
Power
dBm
SML02 GPIB 9 kHz 2.2 GHz -140 +13
SML03 GPIB 9 kHz 3.3 GHz -140 +13
SMR20 TTL 1 GHz 20 GHz
1)
SMR20B11
TTL 10 MHz 20 GHz
SMR27 TTL 1 GHz 27 GHz
1)
SMR27B11
TTL 10 MHz 27 GHz
SMR30 TTL 1 GHz 30 GHz
1)
SMR30B11
TTL 10 MHz 30 GHz
SMR40 TTL 1 GHz 40 GHz
1)
SMR40B11
TTL 10 MHz 40 GHz
SMR50 TTL 1 GHz 50 GHz
1)
SMR50B11
TTL 10 MHz 50 GHz
SMR60 TTL 1 GHz 60 GHz
1)
SMR60B11
TTL 10 MHz 60 GHz
SMP02 TTL 10 MHz 20 GHz
SMP03 TTL 10 MHz 27 GHz
SMP04 TTL 10 MHz 40 GHz
SMP22 TTL 10 MHz 20 GHz
-130
-130
-130
-130
-130
-130
-130
-130
-130
-130
-130
-130
-130
-130
-130
-130
2)
2)
2)
2)
2)
2)
2)
2)
2)
2)
2)
2)
3)
3)
3)
3)
+11
+13
+11
+12
+11
+12
+9
+12
+9
+12
+9
+12
+17
+13
+12
+20
2)
2)
2)
2)
2)
2)
2)
2)
2)
2)
2)
2)
3)
3)
3)
3)
SMT02 GPIB 5.0 kHz 1.5 GHz -144 +13
SMT03 GPIB 5.0 kHz 3.0 GHz -144 +13
SMT06 GPIB 5.0 kHz 6.0 GHz -144 +13
SMV03 GPIB 9 kHz 3.3 GHz -140 +13
SMU200A TTL 100 kHz 2.2 GHz -145 +13
SMU02B31 TTL 100 kHz 2.2 GHz -145 +19
SMU03 TTL 100 kHz 3 GHz -145 +13
SMU03B31 TTL 100 kHz 3 GHz -145 +19
SMU04 TTL 100 kHz 4 GHz -145 +13
1) Requires the option SMR-B11 to be fitted.
2) Maximum/minimum power depends on presence of Option SMR-B15/-B17 and set frequency range. For
more details see SMR data sheet.
3) Maximum/minimum power depends on presence of Option SMP-B15/-B17 and set frequency range. For
more details see SMP data sheet.
4) Requires firmware version V3.20.200 or higher on the signal generator
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R&S® FSV-K30
Measurement Basics
Overview of Generators Supported by the R&S FSVA/FSV
Generator Interface Type Generator Min
Freq
SMU04B31 TTL 100 kHz 4 GHz -145 +19
SMU06 TTL 100 kHz 6 GHz -145 +13
SMU06B31 TTL 100 kHz 6 GHz -145 +19
SMW20
SMW40
SMX GPIB 100 kHz 1.0 GHz -137 +13
SMY01 GPIB 9 kHz 1.04 GHz -140 +13
SMY02 GPIB 9 kHz 2.08 GHz -140 +13
HP8340A GPIB 10 MHz 26.5 GHz -110 10
HP8648 GPIB 9 kHz 4 GHz -136 10
HP ESG-A Series 1000A,
2000A, 3000A,
4000A
HP ESG-D
SERIES
E4432B
4)
TTL
4)
TTL
GPIB 250 kHz 4 GHz -136 20
GPIB 250 kHz 3 GHz -136 +10
100 kHz 20 GHz -145 +30
100 kHz 40 GHz -145 +30
Generator Max
Freq
Generator Min
Power
dBm
Generator Max
Power
dBm
1) Requires the option SMR-B11 to be fitted.
2) Maximum/minimum power depends on presence of Option SMR-B15/-B17 and set frequency range. For
more details see SMR data sheet.
3) Maximum/minimum power depends on presence of Option SMP-B15/-B17 and set frequency range. For
more details see SMP data sheet.
4) Requires firmware version V3.20.200 or higher on the signal generator
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R&S® FSV-K30
4 Measurement Examples (R&S FSV-K30)
4.1 Direct Measurements..................................................................................................27
4.1.1 Basic Measurement Example....................................................................................... 27
4.1.2 DUTs with very Large Gain...........................................................................................30
4.2 Frequency-Converting Measurements......................................................................30
4.2.1 Fixed LO Measurements...............................................................................................31
4.2.2 Image-Frequency Rejection (SSB, DSB)...................................................................... 31
4.2.3 Fixed IF Measurements................................................................................................ 34
Measurement Examples (R&S FSV-K30)
Direct Measurements
This section describes measurement examples for the Noise Figure Measurements
option (K30). For further information on measurement examples refer to the Quick
Start Guide, chapter "Basic Measurement Examples", or the Operating Manual on CD.
This chapter provides the following measurement examples:
4.1 Direct Measurements
Direct measurements are designed for DUTs without frequency-conversion, e.g. amplifiers.
●
Chapter 4.1.1, "Basic Measurement Example", on page 27
●
Chapter 4.1.2, "DUTs with very Large Gain", on page 30
4.1.1 Basic Measurement Example
This section provides step-by-step instructions for working through an ordinary noise
figure measurement. The following steps are described:
●
"Setting up the measurement" on page 27
●
"Performing the calibration" on page 29
●
"Performing the main measurement" on page 29
The gain and noise figure of an amplifier are to be determined in the range from 220
MHz to 320 MHz.
Setting up the measurement
1. Activate the "Noise" mode by pressing the MODE key and selecting "Noise".
2. Press the "Freq Settings" softkey to open the "Frequency Settings" dialog box.
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Direct Measurements
3. In the "Start Freq" field, enter 550 MHz.
4. In the "Stop Freq" field, enter 560 MHz.
5. In the "Step Freq" field, enter 2 MHz.
A measurement at 6 frequency points is performed: 550 MHz, 552 MHz, 554 MHz,
…, 560 MHz.
6. Press the "ENR Settings" softkey to open the "ENR" dialog box.
7. In the "ENR Constant" field, enter the average ENR value of the used noise source
for the frequency range of interest, for example 15 dB.
8. Press the "Meas Settings" softkey to open the "Measurement Settings" dialog box.
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Direct Measurements
9. If it is not yet active, activate the "2nd Stage Correction" option to perform the mea-
surement as accurately as possible.
Performing the calibration
1. Connect the noise source to the RF input of the R&S FSVA/FSV (see Figure 4-1).
2. Provide the voltage supply for the noise source by connecting it to the +28 V con-
nector of the R&S FSVA/FSV (labeled "NOISE SOURCE CONTROL" on the front
panel of the instrument) via a coax cable.
Figure 4-1: Preparation for calibration
3. Start the calibration for the "Noise Figure Measurements" option.
a) Press the SWEEP key.
b) Press the "Cal" softkey.
The progress bar indicates the progress of the calibration measurement.
Performing the main measurement
1. Insert the DUT (in this example, the amplifier) into the test setup between the noise
source and RF input of the R&S FSVA/FSV (see Figure 4-2).
Figure 4-2: Test setup for the main measurement
2. To select the sweep mode, press the SWEEP key.
3. Press the RUN SINGLE key to start a single measurement.
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Frequency-Converting Measurements
Measurement results are updated as the measurement is in progress. The results
are displayed in graphical form. There are two traces, one for noise figure/temperature and one for the gain of the DUT.
4. To change the display from the graphical form to a tabular list of measurement
points, press the "Display List/Graph" softkey in the "Trace" menu.
Note:
If a measurement is started while another measurement is still in progress, the first
measurement is aborted and the new measurement started immediately.
4.1.2 DUTs with very Large Gain
If the gain of the DUT exceeds 60 dB, the total gain must be reduced by an external
attenuator. The total gain of the DUT together with the external attenuator should lie
within the range from 10 dB to 60 dB. A total gain of 20 dB to 30 dB is recommended.
For a DUT with a gain of e.g. 64 dB, it is recommended to use an external 40 dBattenuator.
If an external attenuator is used, in the "Measurement Settings" dialog box, the entry in
the "Range" field should be modified according to the total gain (= Gain DUT – external attenuator).
The attenuation values of the external attenuator are entered in the "Loss Settings"
dialog box under "Loss Output Settings".
Inaccuracies when entering this attenuation mainly influence the measured gain. The
noise figure remains to a large extent unaffected.
Figure 4-3: Calibration and measurement on DUTs with a high gain
4.2 Frequency-Converting Measurements
The frequency-converting measurement is used for DUTs with an output frequency
that differs from the input frequency, e.g. mixers and frequency converters. The fre-
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Frequency-Converting Measurements
quency-converting measurement allows many variations, which differ from each other
in two criteria:
●
Chapter 4.2.1, "Fixed LO Measurements", on page 31
●
Chapter 4.2.2, "Image-Frequency Rejection (SSB, DSB)", on page 31
4.2.1 Fixed LO Measurements
In the "Frequency Settings" dialog box, select one of the following settings for the
"Mode" parameter:
●
Fixed LO, Up Conv, for up-converting devices with IF=RF+LO
●
Fixed LO, Down Conv, for down converters with IF=abs(RF-LO) or image measurements
4.2.2 Image-Frequency Rejection (SSB, DSB)
Test Setup
► Set the following parameters:
a) "IF" (intermediate frequency): 100 MHz
b) "RF" (input frequency): 400 MHz
c) "LO" (local oscillator frequency): 500 MHz
d) "image" (image frequency): 600 MHz
If a DUT, which equally converts the useful signal and the image to the IF frequency, is
measured using the conventional y factor method or with the 2nd stage correction
switched on, a measuring error of 3 dB is produced. The noise figure is displayed 3 dB
lower and the gain 3 dB higher. The following examples help to configure the test setup
in order to measure the actual values.
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Frequency-Converting Measurements
4.2.2.1 Measurement on a single-sideband mixer
In general, a single-sideband mixer with a very high image rejection causes very few
problems. The measurement is analogous to an amplifier. In this case, set the image
rejection in the "Frequency Settings" dialog box to a large value (e.g. 999.99 dB).
4.2.2.2 Measurement on a mixer without sideband suppression
If the input and image frequencies are converted with the same application, an error of
3 dB occurs in the measurement results if the image rejection is not taken into account.
In this case, set the image rejection in the "Frequency Settings" dialog box to a small
value (e.g. 0.0 dB).
4.2.2.3 Measurement on a mixer with an average sideband suppression
For measurements on a mixer with a low image-frequency rejection, a measuring error
of 0 to 3 dB is obtained if the image-frequency rejection is not taken into account. In
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Frequency-Converting Measurements
this case, set the image rejection in the "Frequency Settings" dialog box to the correct
image rejection value to produce the correct results.
4.2.2.4 Measurement on a mixer with unknown sideband suppression
If the image rejection is not known, accurate noise results can still be produced. However, the gain of the DUT must be known and an additional filter is required.
Test setup
Figure 4-4: Preparation for calibration
Figure 4-5: Test setup for the main measurement
In this test setup, a low pass filter prevents noise from the noise source from being fed
in at the image frequency. Depending on the position of the frequency bands, a highpass or bandpass filter may also be necessary for the RF frequency instead of the lowpass filter. The important point is that noise from the noise source is not converted by a
further receive path of the mixer. The noise of the noise source at the receive frequency must not be reduced. The insertion loss must be considered, if applicable.
With this test setup, the measurement on a mixer without sideband suppression corresponds to the measurement on a single-sideband mixer. As in that case, set the image
rejection in the "Frequency Settings" dialog box to a large value (e.g. 999.99 dB) to
produce accurate results.
To take the characteristics of the filter into account, in the "Loss Settings" dialog box,
enter the insertion loss of the filter at the RF frequency. To consider the actual filter
suppression at the image frequency, do not enter 999 dB but the actual attenuation for
the image rejection.
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Frequency-Converting Measurements
4.2.2.5 Measurement on a harmonics mixer
For a harmonics mixer, the input signals are not only converted to the IF by the wanted
harmonic, but also by the harmonic of the LO signal produced in the mixer. In many
cases, the mixer even features a lower conversion loss in the case of unwanted harmonics. For measurements on this type of mixer, a bandpass filter must be used to
make sure that that there is only noise at the desired input frequency at the input of the
DUT. This measurement is similar to measurements on a mixer with an average sideband suppression.
4.2.3 Fixed IF Measurements
During a "Fixed IF" measurement, a mixer can be tested using an R&S FSVA/FSV at a
fixed frequency, while the Local Oscillator frequency of a connected external generator
sweeps the frequency list. The LO frequency is controlled by the R&S FSV-K30 option,
which drives the external generator using the R&S FSV-B10 option.
Thus, this measurement requires an R&S FSVA/FSV with the K30 and B10 options
installed.
Tracking generator vs. external generator
In Spectrum mode, when using the B10 option, the frequencies of the analyzer and the
generator are coupled by default. The generator is thus referred to as a "tracking generator". In Noise Measurements mode, on the other hand, the analyzer uses a fixed
frequency while the generator sweeps the frequency list. The generator is thus simply
referred to as an "external generator".
The Fixed IF measurement can calculate frequencies for downconverter or
upconverter devices. For downconverter devices, the LO is set according to the formula:
LO = RF + IF
For upconverter devices, the LO is set according to the formula:
LO = abs(RF-IF)
The generator frequency actually used during the measurement is calculated by the
R&S FSV-K30 option based on the LO frequencies in the frequency list. The following
formula is used to calculate the generator frequency:
Generator Frequency = [(LO + Offset 1) * Factor 1 / Factor 2)] + Offset 2
The offset values and factors for the calculation are defined in the "Measurement Settings". If changes are made to the settings, the start and stop frequencies of the external generator are calculated and displayed.
Measurement results
The measurement results can be displayed against the RF or LO frequencies, depending on the x-axis selection in the "Display Settings" (see "X-Axis" on page 60).
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Frequency-Converting Measurements
To set up a Fixed IF measurement
As opposed to the Spectrum mode, the Noise measurement mode does not provide a
separate dialog box for setting up the generator. The settings are contained in the general "Frequency Settings" and "Measurement Settings" dialog boxes if the R&S FSVB10 option is installed. For details on the settings see "Frequency Settings"
on page 45 and "Meas Settings" on page 50.
1. Connect the external generator to the R&S FSV-B10 interface on the R&S FSVA/
FSV's rear panel.
2. In Noise measurement mode, press the "Frequency Settings" softkey to display the
"Frequency Settings" dialog box.
3. In the "Frequency Settings" dialog box, select the "Mode" Fixed IF, Up Conv to test
an upconverting mixer.
4. In the "Fixed IF" field, enter 1000000000.
5. In the Frequency Table, define the LO frequencies for the external generator.
Which frequencies the generator actually uses during the measurement is calculated according to the offset values and factors specified in Generator Settings/ Gen-
erator Frequency.
6. Press the "Meas Settings" softkey to open the "Measurement Settings" dialog box.
Define the settings for the external generator as shown in the screenshot below
and described in "Generator Settings/ Generator Frequency" on page 54.
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Frequency-Converting Measurements
7. Press the "Display Settings" softkey to open the "Graphic" dialog box.
8. In the "Noise and Gain X-Axis Settings", select RF or LO as the frequency to be
displayed on the "X-Axis".
9. Press the RUN SINGLE or RUN CONT hardkey on the front panel to start a mea-
surement.
The measurement is performed. The results for each frequency in the frequency
list are displayed in the diagram and the result table.
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Frequency-Converting Measurements
Figure 4-6: Fixed IF measurement results displayed against RF frequencies
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R&S® FSV-K30
Measurement Examples (R&S FSV-K30)
Frequency-Converting Measurements
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R&S® FSV-K30
5 Instrument Functions of Noise Figure Mea-
Instrument Functions of Noise Figure Measurements (R&S FSV-K30)
Working With Limit Lines
surements (R&S FSV-K30)
The "Noise Figure Measurements" option provides noise figure measurements. Using
this option, the noise figure of a Device Under Test, e.g. low-noise amplifier circuits,
with noise figures of less than 1 dB can be measured.
To open the main noise figure measurements menu
●
If the "Noise" mode is not the active measurement mode, press the MODE key and
activate the "Noise" option.
●
If the "Noise" mode is already active, press the HOME key.
The main noise figure measurements menu is displayed.
Menu and softkey description
Chapter 6, "Menu and Softkey Description (R&S FSV-K30)", on page 41
Tasks
●
Chapter 5.1, "Editing Tables", on page 39
●
Chapter 5.2, "Working With Limit Lines", on page 39
5.1 Editing Tables
1. Select the table header to enter into the edit mode.
2. Focus the field you want to edit by touching it or using the arrow keys or the rotary
knob.
3. Enter the values (for details refer to the Quick Start Guide, chapter 4, "Basic Oper-
ations").
4. To insert a new row above the currently selected row, press the "Insert" softkey.
a) To delete the currently selected row, press the "Delete" softkey.
b) To update the "Frequency Table" according to the "Frequency Settings", press
the "Build Tbl" softkey.
5. Press the "Exit" softkey to leave the edit mode.
5.2 Working With Limit Lines
1. Press the LINES key.
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R&S® FSV-K30
Instrument Functions of Noise Figure Measurements (R&S FSV-K30)
Working With Limit Lines
The "Limit Lines" dialog box is displayed. It contains information on name, limit,
status, and a comment.
2. To activate limit lines, select the limit line you want to activate and press the
"Enable/Disable" softkey.
3. To define a new limit line, press the "New" softkey and enter the limit line charac-
teristics.
4. To modify a limit line, select the limit line you want to edit and press the "Edit" soft-
key.
5. To save a limit line, press the "Exit" softkey.
If data is missing or if some data is invalid, an error message is displayed.
6. To delete a limit line, select the limit line you want to edit and press the "Delete"
softkey.
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R&S® FSV-K30
6 Menu and Softkey Description (R&S FSV-
6.1 Softkeys and Settings of the Noise Menu (R&S FSV-K30)......................................41
6.2 Softkeys of the Frequency Menu (R&S FSV-K30).................................................... 60
6.3 Softkeys of the Span Menu (R&S FSV-K30)............................................................. 61
6.4 AMPT key..................................................................................................................... 62
6.5 BW key......................................................................................................................... 62
6.6 Softkeys of the Sweep Menu (R&S FSV-K30)...........................................................62
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S FSV-K30)
K30)
In the following sections the softkeys available in the noise figure measurements are
explained.
The "Auto Set", "Trigger", "Meas Config" and "Marker Functions" menus are not available for noise figure measurements.
6.7 Softkeys of the Trace Menu (R&S FSV-K30).............................................................63
6.8 Softkeys of the Marker Menu (R&S FSV-K30).......................................................... 65
6.9 Softkeys of the Marker To Menu (R&S FSV-K30)..................................................... 65
6.10 Softkeys of the Lines Menu (R&S FSV-K30).............................................................66
6.11 Softkeys of the Input/Output Menu (R&S FSV-K30).................................................68
6.1 Softkeys and Settings of the Noise Menu (R&S FSVK30)
The following table shows all softkeys available in the noise figure measurements
("Noise") menu.
Schematic Overview..................................................................................................... 43
Frequency Settings....................................................................................................... 45
└ Frequency Settings.........................................................................................45
└ Single Freq........................................................................................... 45
└ Start Freq..............................................................................................45
└ Stop Freq..............................................................................................45
└ Step Freq..............................................................................................46
└ Center Freq...........................................................................................46
└ Span..................................................................................................... 46
└ Sweep points........................................................................................ 46
└ Mode.....................................................................................................46
└ Fixed LO............................................................................................... 47
└ Fixed IF.................................................................................................47
└ Image Rej............................................................................................. 47
└ Frequency Table.............................................................................................47
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
ENR Settings.................................................................................................................48
└ Selection......................................................................................................... 48
└ ENR Constant.................................................................................................49
└ Room Temperature.........................................................................................49
└ ENR Table...................................................................................................... 49
Loss Settings.................................................................................................................49
└ Selection......................................................................................................... 50
└ Loss Input Constant/Loss Output Constant.................................................... 50
└ Loss Input Table/ Loss Output Table..............................................................50
Meas Settings............................................................................................................... 50
└ Calibration.......................................................................................................51
└ 2nd Stage Correction............................................................................51
└ Analyzer Settings............................................................................................51
└ RBW..................................................................................................... 51
└ Sweep Time..........................................................................................52
└ Settling Time.........................................................................................52
└ Average................................................................................................ 52
└ RF Attenuation......................................................................................52
└ Automatic Ref Level..............................................................................53
└ Ref Level...............................................................................................53
└ Range................................................................................................... 53
└ Preamp On/Off......................................................................................53
└ Input Settings/Baseband Settings...................................................................54
└ Input......................................................................................................54
└ Input Sample Rate................................................................................54
└ Full Scale Level.................................................................................... 54
└ Generator Settings/ Generator Frequency......................................................54
└ Automatic Control................................................................................. 54
└ Source Power....................................................................................... 55
└ Type......................................................................................................55
└ Interface................................................................................................55
└ TTL Synchronization.............................................................................55
└ Address.................................................................................................55
└ Reference............................................................................................. 56
└ Init Before Meas....................................................................................56
└ Auto Switch Off.....................................................................................56
└ Offset 1 / Factor 1 / Factor 2 / Offset 2................................................. 56
└ Result Frequency Start.........................................................................57
└ Result Frequency Stop......................................................................... 57
Display Settings............................................................................................................ 57
└ Results Settings..............................................................................................57
└ Combined Trace Display...................................................................... 57
└ Noise Trace Settings.......................................................................................58
└ Y-Axis................................................................................................... 58
└ Automatic Scaling.................................................................................58
└ Min Y-Axis NF/Max Y-Axis NF..............................................................58
└ Min Y-Axis Temp/Max Y-Axis Temp.....................................................58
└ Symbols................................................................................................59
└ Gain Trace Settings........................................................................................ 59
└ Y-Axis................................................................................................... 59
FSV-K30)
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S FSV-K30)
└ Automatic Scaling.................................................................................59
└ Min Y-Axis/Max Y-Axis......................................................................... 59
└ Symbols................................................................................................59
└ Noise and Gain X-Axis Settings......................................................................59
└ X-Axis................................................................................................... 60
Editing Tables............................................................................................................... 60
└ Build Tbl..........................................................................................................60
└ Exit..................................................................................................................60
└ Insert...............................................................................................................60
└ Delete..............................................................................................................60
└ Import..............................................................................................................60
Cal.................................................................................................................................60
Schematic Overview
Displays the schematic diagram of the test setup for the selected measurement type
and the specified frequency ranges. If the frequency ranges are changed, the schematic diagram is updated accordingly. The test setup varies depending on the measurement mode:
●
Direct measurement
The direct measurement mode is designed for DUTs without frequency-conversion,
e.g. amplifiers.
The schematic display for the direct measurement mode is shown in Figure 6-1.
The upper part of the figure shows the setup for calibration. The lower part of the
figure shows the test setup for the measurement.
Figure 6-1: Schematic diagram for direct measurements
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S FSV-K30)
●
Frequency-converting measurement
The frequency-converting measurement mode is designed for frequency-converting DUTs that have a fixed Local Oscillator (LO) frequency, for example, satellite
converters with a fixed LO frequency.
The schematic display for the frequency-converting measurement mode is shown
in Figure 6-2. The upper part of the figure shows the setup for calibration. The
lower part of the figure shows the test setup for the measurement.
Figure 6-2: Schematic diagram for frequency converting measurements
Note:
The schematic overview now provides direct access to the most important configuration steps. Select the step for the setting you want to edit to display the corresponding dialog box.
Configuration step Dialog box
Noise Source "ENR Settings" on page 48
Spectrum Analyzer "Meas Settings" on page 50
Loss Input "Loss Settings" on page 49
Loss Output "Loss Settings" on page 49
DUT "Frequency Settings" on page 45
Local Oscillator "Meas Settings" on page 50
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
Frequency Settings
Opens the "Frequency Settings" dialog box.
Frequency Settings ← Frequency Settings
Under "Frequency Settings", the frequency settings and the measurement mode are
set.
FSV-K30)
Single Freq ← Frequency Settings ← Frequency Settings
Activates a single frequency measurement. Instead of measuring a list of frequencies,
a single frequency is measured once or continuously. The frequency to be measured is
defined in the Start Freq field.
Remote command:
CONFigure:FREQ:CONTinuous on page 87
CONFigure:FREQ:SINGle on page 87
Start Freq ← Frequency Settings ← Frequency Settings
Specifies the start frequency. This is the first receive frequency (RF) entry in the "Frequency Table" and the "Frequency List Results" (result display). For single frequency
measurements, the start frequency defines the single frequency to be measured.
If the start frequency is changed, the "Frequency Table" is updated accordingly. For
details see Chapter 3.1, "Measurement Types", on page 11.
Remote command:
[SENSe:]FREQuency:STARt on page 113
Stop Freq ← Frequency Settings ← Frequency Settings
Specifies the stop frequency. This is the last receive frequency (RF) entry in the "Frequency Table" and the "Frequency List Results" (result display).
If the stop frequency is changed, the "Frequency Table" is updated accordingly.
Remote command:
[SENSe:]FREQuency:STOP on page 113
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
Step Freq ← Frequency Settings ← Frequency Settings
Specifies the step size between the single measurement steps (i.e. entries in the frequency table). If the step frequency is larger than the difference between the start frequency and the stop frequency, the "Frequency Table" and the "Frequency List
Results" (result display) just contain the start and stop frequency. For details see
Chapter 3.1, "Measurement Types", on page 11.
If the step frequency is changed, the "Frequency Table" is updated accordingly.
Remote command:
[SENSe:]FREQuency:STEP on page 113
Center Freq ← Frequency Settings ← Frequency Settings
Defines the center frequency.
Remote command:
[SENSe:]FREQuency:CENTer on page 112
Span ← Frequency Settings ← Frequency Settings
Specifies the frequency span.
Remote command:
[SENSe:]FREQuency:SPAN on page 113
FSV-K30)
Sweep points ← Frequency Settings ← Frequency Settings
Defines the number of measured values to be collected during one sweep.
Remote command:
[SENSe:]SWEep:POINts on page 114
Mode ← Frequency Settings ← Frequency Settings
Specifies the measurement mode. For details on modes refer to Chapter 3.2, "Mea-
surement Modes of the Noise Figure Measurement", on page 13.
If the mode is changed, the "Frequency Table" is updated accordingly.
"Direct"
"Fixed LO
Upconverter"
"Fixed LO
Downconverter"
"Digital IQ"
"Fixed LO
Upconverter"
"Fixed IF
Downconverter"
Remote command:
To select the type of DUT: [SENSe:]CONFigure:MODE:DUT on page 109
To select Fixed LO or Fixed IF: [SENSe:]CONFigure:MODE:SYSTem:
LOSCillator on page 110
Direct measurement
IF = RF + LO
IF = |(RF - LO)|
Digital baseband input using the optional R&S FSV-B17 interface
LO = abs(RF – IF)
Requires R&S FSV-B10 option
LO = RF + IF
Requires R&S FSV-B10 option
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S FSV-K30)
Fixed LO ← Frequency Settings ← Frequency Settings
Specifies the fixed local oscillator frequency. This field is only available if a frequencyconverting measurement mode is selected ("Mode" field). For details on modes refer to
Chapter 3.2, "Measurement Modes of the Noise Figure Measurement", on page 13.
If the fixed LO is changed, the "Frequency Table" is updated accordingly.
Remote command:
[SENSe:]CONFigure:MODE:SYSTem:LOSCillator:FREQuency on page 111
Fixed IF ← Frequency Settings ← Frequency Settings
Specifies the fixed IF frequency. This field is only available if a "Fixed IF" measurement
mode is selected ("Mode" field). For details see Chapter 4.2.3, "Fixed IF Measure-
ments", on page 34.
If the fixed IF is changed, the "Frequency Table" is updated accordingly.
Remote command:
[SENSe:]CONFigure:MODE:SYSTem:IF:FREQuency on page 110
Image Rej ← Frequency Settings ← Frequency Settings
Specifies the suppression applied to the second sideband. This field is only available if
a frequency-converting measurement mode is selected. For details on modes refer to
Chapter 3.2, "Measurement Modes of the Noise Figure Measurement", on page 13.
The value entered is applied across the complete frequency range. A value of 999.99
dB corresponds to the generally used single-sideband measurement (SSB), where the
second sideband does not noticeably affect the measurement result. This is the default
value. A value of 0 dB corresponds to the double-sideband measurement (DSB),
where both sidebands are converted to the same extent.
Remote command:
[SENSe:]CORRection:IREJection on page 104
Frequency Table ← Frequency Settings
Under "Frequency Table", the individual measurement steps are listed that will be performed exactly in the order of the table. They are generated from the start frequency,
the stop frequency, and the step size on basis of the selected mode. If the start frequency is smaller than the stop frequency, the RF values are generated into a list of
ascending frequencies. If the start frequency is larger, the list is descending. No more
than 171 measurement steps are possible. If the gap between start and stop frequency
is too large, increase the step frequency.
Depending on the measurement type, the "Frequency Table" contains the following
columns:
Measurement type Column Description
Direct measurement RF Receive frequency, generated from the "Start Freq", the "Stop
Freq", and the "Step Freq" field entries
Frequency-converting
measurement
LO Constant LO frequency, defined via the "Fixed LO" field
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
Measurement type Column Description
Frequency-converting
measurement
IF IF frequency, calculated according to the "Mode" field
Image Image frequency, shows whether image frequency filters are
required and for which frequency range the image rejection of
the DUT is needed ("Image Rej" field)
FSV-K30)
You can customize the "Frequency Table" by editing, deleting, and inserting measurement steps. This is useful in order to insert extra measurement steps near a specific
frequency of interest in order to get more detailed results. If the start, stop, or step frequency is changed, the "Frequency Table" is generated afresh and all manual modifications are overwritten. To customize this table, proceed according to Chapter 5.1,
"Editing Tables", on page 39.
Remote command:
[SENSe:]FREQuency:LIST:DATA on page 112
ENR Settings
Opens the "ENR" dialog box.
The abbreviation ENR stands for "excess noise ratio". Correct ENR values for the
noise source are essential to perform accurate measurements. They are used to calculate the effective noise temperature of the noise source that in turn is used for calculation of measurement results.
Remote command:
[SENSe:]CORRection:ENR[:MEASurement]:TABLe:DATA on page 104
Selection ← ENR Settings
Defines the used ENR values. The default ENR value is 15 dB as a constant value that
is valid for all frequencies.
"Constant"
The value specified in the "ENR Constant" field is used for all frequencies (see "ENR Constant" on page 49). The entries of the
"ENR Table" are ignored.
"Table"
The entries of the "ENR Table" provide the basis for the ENR values.
Between these values the R&S FSVA/FSV uses interpolated values.
Remote command:
[SENSe:]CORRection:ENR:SPOT on page 104
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
ENR Constant ← ENR Settings
Specifies the constant ENR value of the noise source that is used throughout the entire
frequency range. This parameter is only editable if "Constant" is selected in the selection list.
Remote command:
[SENSe:]CORRection:ENR:SPOT on page 104
Room Temperature ← ENR Settings
Specifies the current room temperature as an absolute value in Kelvin. This value is
used in the calculation of the noise results.
Remote command:
[SENSe:]CORRection:TEMPerature on page 108
ENR Table ← ENR Settings
Under "ENR Table", the frequency-dependent ENR values are listed. The list can contain up to 100 RF/ENR pairs. The order of the RF values in the list is not important. To
modify this table, proceed as described in Chapter 5, "Instrument Functions of Noise
Figure Measurements (R&S FSV-K30)", on page 39.
ENR tables can be saved and recalled at any time via the SAVE/RCL key (for details
refer to the base unit description).
In addition to the data saved by the basic unit, all data entered in the "ENR Settings"
dialog box is saved.
FSV-K30)
Loss Settings
Opens the "LOSS" dialog box to take additional losses due to cables or attenuators
into account that are not considered in the calibration.
The loss Settings dialog box contains the following elements:
Loss Input Settings
Under "Loss Input Settings", the additional loss between the noise source and the DUT
is defined.
Loss Output Settings
Under "Loss Output Settings", the additional loss between the DUT and the analyzer is
defined.
Loss settings can be saved and recalled at any time via the SAVE/RCL key (for details
refer to the base unit description).
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
In addition to the data saved by the basic unit, all data entered in the "Loss Settings"
dialog box is saved.
Remote command:
[SENSe:]CORRection:LOSS:INPut:TABLe on page 106
[SENSe:]CORRection:LOSS:OUTPut:TABLe on page 107
Selection ← Loss Settings
Defines the used Loss values.
"Constant"
"Table"
Remote command:
[SENSe:]CORRection:LOSS:INPut:MODE on page 105
[SENSe:]CORRection:LOSS:INPut:TABLe on page 106
Loss Input Constant/Loss Output Constant ← Loss Settings
Specifies the constant loss value that is used across the entire frequency range. This
parameter is only editable if "Constant" is selected in the selection list.
Remote command:
[SENSe:]CORRection:LOSS:INPut:SPOT on page 105
[SENSe:]CORRection:LOSS:OUTPut:SPOT on page 107
The values specified in the "Loss Input Constant"/"Loss Output Constant" fields are used for all frequencies. The entries of the "Loss
Input/Output" table are ignored.
The entries of the "Loss Input/Output" table provide the basis for the
"Loss" values. Between these values the R&S FSVA/FSV uses interpolated values.
FSV-K30)
Loss Input Table/ Loss Output Table ← Loss Settings
Under "Loss Input Table" or "Loss Output Table", the list can contain up to 100
RF/ENR pairs. The order of the RF values in the list is not important. To modify this
table, proceed as described in Chapter 5, "Instrument Functions of Noise Figure Mea-
surements (R&S FSV-K30)", on page 39.
Loss tables can be saved and recalled at any time via the FILE key (for details refer to
the base unit description). In addition to the data saved by the basic unit, all loss input
& output data entered in the loss settings dialog box is saved.
Meas Settings
Opens the "Measurement Settings" dialog box to modify all settings related to the overall measurement.
Alternatively, the "Measurement Settings" dialog box is opened as follows:
●
AMPT key
●
BW key
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
FSV-K30)
Calibration ← Meas Settings
Under "Calibration", the second stage correction can be activated or deactivated. For
details refer also to Chapter 3.6, "Calibration", on page 18.
2nd Stage Correction ← Calibration ← Meas Settings
Activates or deactivates the second stage correction.
For details refer also to Chapter 3.6, "Calibration", on page 18.
"On"
"Off"
Remote command:
[SENSe:]CORRection[:STATe] on page 103
Analyzer Settings ← Meas Settings
Under "Analyzer Settings", the general settings for the spectrum analyzer concerning
the level, attenuation and bandwidth of the signal to be measured are defined.
RBW ← Analyzer Settings ← Meas Settings
Specifies the resolution bandwidth for the measurement.
A large value improves the averaging of the display considerably, reduces the influ-
ence of external sources of interference, and permits the fastest measurement time
possible.
The calibration data recorded via the "Cal" softkey is used to correct
the measurement results (see "Cal" on page 60). The calibration
data is stored regardless of the state of the option.
No correction is applied to the measurement results.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
A low value should only be used across a very small frequency range. For measurements at low frequencies, the RBW must be reduced to prevent the LO frequency of
the analyzer from invalidating the measurement. At receive frequencies of 100 kHz, the
RBW must not exceed 10 kHz.
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution] on page 109
Sweep Time ← Analyzer Settings ← Meas Settings
Specifies the time one complete measurement sweep takes. Two sweeps are performed for each measurement step (once with noise source on, once with noise source
off).
For narrow bandwidths, the sweep time should be increased in order to give accurate
measurement results.
Remote command:
[SENSe:]SWEep:TIME on page 114
Settling Time ← Analyzer Settings ← Meas Settings
Specifies the time the DUT takes to settle after a noise source has been turned on or
off.
Most noise sources generate an interfering DC component in addition to the noise
spectrum. If the noise source is switched on or off, low-frequency DUTs may require
this settling time for coupling capacitors to be charged or discharged.
Remote command:
SYSTem:CONFigure:DUT:STIMe on page 123
FSV-K30)
Average ← Analyzer Settings ← Meas Settings
Specifies the number of measurement sweeps over which the average is taken to produce the displayed measurement results.
The higher the number of sweeps, the more accurate the measurement results, but the
measurement time is significantly longer.
An average value of 1 means that each displayed result is produced from one measurement sweep. This is sufficient for most cases.
Remote command:
[SENSe:]SWEep:COUNt on page 114
RF Attenuation ← Analyzer Settings ← Meas Settings
Specifies the attenuation that is applied to the received RF signal.
To obtain a low noise figure for the analyzer and hence more accurate noise measure-
ments, 0 dB should be set. For high DUT power levels or critical matching, a higher
setting is also possible. A setting of 10 dB will give a much better VSWR (voltage
standing wave ratio) of the analyzer, but will result in a worse noise figure of the analyzer.
Remote command:
INPut:ATTenuation on page 99
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
Automatic Ref Level ← Analyzer Settings ← Meas Settings
Activates or deactivates the automatic reference level setting.
The automatic reference level measurement is performed as follows:
●
2nd stage correction activated:
At the beginning of the calibration measurement, several measurements are performed at the first frequency test point and the reference level is calculated from
these results taking into account the maximum gain of the DUT (see "Range"
on page 53).
●
2nd stage correction deactivated:
At the beginning of the main measurement, several measurements are performed
at the first frequency test point and the reference level is calculated from these
results. The range setting is not significant.
"Off"
"On"
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:AUTO on page 95
Ref Level ← Analyzer Settings ← Meas Settings
Specifies the reference level. It is only possible to enter a reference level manually, if
the automatic reference level is deactivated (see "Automatic Ref Level" on page 53).
The reference level should be about 5 to 15 dB above the noise display that occurs
with the DUT connected and the noise source activated.
Even for DUTs with a high-ripple frequency response it can be useful to enter the reference level manually, because an automatic reference level setting may not always
result in optimal settings.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel on page 94
Specify a reference level manually (see "Ref Level" on page 53).
The reference level is measured automatically. The total measure-
ment time increases.
FSV-K30)
Range ← Analyzer Settings ← Meas Settings
Specifies the maximum gain expected from the DUT.
If the 2nd Stage Correction is activated, this value is used to calculate the automatic
reference level to ensure that the expected power of the measured signal will be within
the optimum operating range of the spectrum analyzer (see "Automatic Ref Level"
on page 53).
To ensure accurate measurement results, the range should not exceed the actual gain
of the DUT by more than a margin of 10 dB.
Remote command:
SYSTem:CONFigure:DUT:GAIN on page 122
Preamp On/Off ← Analyzer Settings ← Meas Settings
Switches the preamplifier on and off.
If option R&S FSV-B22 is installed, the preamplifier is only active below 7 GHz.
If option R&S FSV-B24 is installed, the preamplifier is active for all frequencies.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S FSV-K30)
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:GAIN:STATe on page 100
Input Settings/Baseband Settings ← Meas Settings
Input and Baseband settings are only required if the Digital Baseband Interface (option
R&S FSV-B17) is used to measure digital input.
For details see the Digital Baseband Interface (R&S FSV-B17) description of the base
unit.
Input ← Input Settings/Baseband Settings ← Meas Settings
Defines whether RF or digital input is to be measured. Digital input is only available if
the Digital Baseband Interface (option R&S FSV-B17) is installed.
Remote command:
INPut:SELect on page 101
Input Sample Rate ← Input Settings/Baseband Settings ← Meas Settings
Defines the sample rate of the digital I/Q signal source. This sample rate must correspond with the sample rate provided by the connected device, e.g. a generator.
Remote command:
INPut:DIQ:SRATe on page 100
Full Scale Level ← Input Settings/Baseband Settings ← Meas Settings
The "Full Scale Level" defines the level that should correspond to an I/Q sample with
the magnitude "1".
The level is defined in Volts.
Remote command:
INPut:DIQ:RANGe[:UPPer] on page 99
Generator Settings/ Generator Frequency ← Meas Settings
This section contains external generator settings for Fixed IF measurements if the
R&S FSV-B10 option is installed.
For details see Chapter 4.2.3, "Fixed IF Measurements", on page 34.
Automatic Control ← Generator Settings/ Generator Frequency ← Meas Settings
Defines whether the R&S FSV-K30 controls the external generator via GPIB commands or whether the external generator is controlled by the user.
"ON"
R&S FSV-K30 issues GPIB commands during measurement execution in order to control the external generator.
Required for Fixed IF measurements, since R&S FSV-K30 expects
the LO frequency to be tuned to the test RF frequency automatically.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
"OFF"
Remote command:
SYSTem:CONFigure:GENerator:CONTrol:STATe on page 123
Source Power ← Generator Settings/ Generator Frequency ← Meas Settings
The output power of the external tracking generator. The default output power is -20
dBm. The range is specified in the data sheet.
Remote command:
SOURce<n>:EXTernal<generator>:POWer[:LEVel] on page 117
Type ← Generator Settings/ Generator Frequency ← Meas Settings
Generator type. See also Chapter 3.10, "Overview of Generators Supported by the
R&S FSVA/FSV", on page 24.
No GPIB commands are issued to the external generator. R&S FSVK30 assumes that the user sets up the external generator correctly.
None of the other parameters in the "Generator Settings" group are
available for editing when Automatic Control is set to OFF.
Only useful for "Fixed LO" measurements in which the external generator settings do not need to change during the measurement.
Note: If automatic control is deactivated, remote control of the external generator (if in use) is automatically ended.
FSV-K30)
Remote command:
SYSTem:COMMunicate:RDEVice:GENerator<generator>:TYPE on page 122
Interface ← Generator Settings/ Generator Frequency ← Meas Settings
Type of interface connection used. The following interfaces are currently supported:
●
TCP/IP
●
GPIB
For details on interfaces see the "Interfaces and Protocols" section in the
R&S FSVA/FSV Quick Start Guide.
Remote command:
SYSTem:COMMunicate:RDEVice:GENerator<generator>:INTerface
on page 120
TTL Synchronization ← Generator Settings/ Generator Frequency ← Meas Settings
If available for the specified generator type, this option activates TTL synchronization
for GPIB connections.
For Noise Figure measurements (K30) this setting currently has no effect.
Remote command:
SYSTem:COMMunicate:RDEVice:GENerator<generator>:LINK on page 121
Address ← Generator Settings/ Generator Frequency ← Meas Settings
For LAN connections: TCP/IP address.
For GPIB connections: GPIB address.
For more information on configuring interfaces see the "Interfaces and Protocols" sec-
tion in the R&S FSVA/FSV Quick Start Guide.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
Remote command:
SYSTem:COMMunicate:RDEVice:GENerator<generator>:LINK on page 121
Reference ← Generator Settings/ Generator Frequency ← Meas Settings
Selects internal or external reference for the generator (default: internal).
Remote command:
SOURce<n>:EXTernal<generator>:ROSCillator[:SOURce] on page 117
Init Before Meas ← Generator Settings/ Generator Frequency ← Meas Settings
Specifies whether an initialisation sequence of GPIB commands containing the defined
generator settings is sent to an external signal generator prior to performing each measurement. Sending an initialisation sequence before each measurement ensures that
the external generator is in the correct state to receive control commands during a
measurement sequence. On the other hand, initialising an external signal generator
before each measurement adds a time overhead to each measurement.
If enabled, the R&S FSV-K30 option initialises the selected external generator prior to
starting each requested measurement and switches on the generator's RF output.
If disabled, you must initialize the generator manually using the "Init Generator" softkey
in the INPUT/OUTPUT menu (see "Init Generator" on page 70).
Remote command:
SYSTem:CONFigure:GENerator:INITialise:AUTO on page 124
FSV-K30)
Auto Switch Off ← Generator Settings/ Generator Frequency ← Meas Settings
Specifies whether a sequence of GPIB commands is sent to an external signal generator at the end of each measurement (after a single sweep or after a measurement is
aborted) to switch the generator's RF output off.
If enabled, the generator's RF output is switched OFF after each measurement. The
remote mode is also automatically ended after each measurement.
Otherwise, RF output must be switched off and remote mode ended manually.
Note: When the Noise measurement mode is closed, the RF output is automatically
switched off and remote mode ended.
Remote command:
SYSTem:CONFigure:GENerator:SWITch:AUTO on page 124
Offset 1 / Factor 1 / Factor 2 / Offset 2 ← Generator Settings/ Generator Frequency ← Meas Settings
The generator frequency is calculated according to the following formula:
Generator Frequency = [(LO + Offset 1) * Factor 1 / Factor 2)] + Offset 2
The factors and offsets can be defined to compensate for any component that may
change the frequency between the generator and the device under test.
Remote command:
Factor 1:
SOURce<n>:EXTernal<generator>:FREQuency[:FACTor]:NUMerator
on page 115
Factor 2:
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
SOURce<n>:EXTernal<generator>:FREQuency[:FACTor]:DENominator
on page 115
Offset 1/2:
SOURce<n>:EXTernal<generator>:FREQuency:OFFSet<m> on page 116
Result Frequency Start ← Generator Settings/ Generator Frequency ← Meas Settings
For reference only: The start frequency for the generator, calculated from the configured LO values in the "Frequency Table" and the offset values and factors in the "Generator Settings".
Result Frequency Stop ← Generator Settings/ Generator Frequency ← Meas Settings
For reference only: The stop frequency for the generator, calculated from the configured LO values in the "Frequency Table" and the offset values and factors in the "Generator Settings".
Display Settings
Opens the "Display Settings" dialog box to modify the graphical results display.
FSV-K30)
Results Settings ← Display Settings
The settings that affect the overall results display
Combined Trace Display ← Results Settings ← Display Settings
Activates or deactivates the combined trace display of noise and gain results.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
"ON"
"OFF"
Remote command:
DISPlay:FORMat on page 90
Noise Trace Settings ← Display Settings
The settings related to the graphical display of noise results.
Note that when using the Digital Baseband Interface (R&S FSV-B17), the Min/Max Y-
axis options are not available.
Y-Axis ← Noise Trace Settings ← Display Settings
Specifies the type of noise result that is to be displayed graphically:
●
Noise Figure
●
Noise Temperature
●
Off (no noise results are displayed graphically)
Remote command:
DISPlay:DATA:TRACe<t> on page 90
DISPlay[:WINDow<n>]:TRACe<t>[:STATe] on page 91
The noise and gain traces are displayed in the same trace display in
different colors.
The noise and gain traces are displayed in different trace displays.
FSV-K30)
Automatic Scaling ← Noise Trace Settings ← Display Settings
Activates or deactivates the automatic scaling of the Y-axis.
"On"
"Off"
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:AUTO on page 93
Min Y-Axis NF/Max Y-Axis NF ← Noise Trace Settings ← Display Settings
Specifies the minimum/maximum noise figure result that can be displayed graphically.
It is only possible to enter a value if the automatic scaling is deactivated (see "Auto-
matic Scaling" on page 58), and the y-axis is set to "Noise Figure" (see "Y-Axis"
on page 58).
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:BOTTom on page 93
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:TOP on page 95
Min Y-Axis Temp/Max Y-Axis Temp ← Noise Trace Settings ← Display Settings
Specifies the minimum/maximum noise temperature result that can be displayed
graphically. It is only possible to enter a value, if the automatic scaling is deactivated
(see "Automatic Scaling" on page 58), and the y-axis is set to "Noise Figure" (see "Y-
Axis" on page 58).
The y-axis is scaled automatically. The automatic scaling algorithm
provides the optimal display of the complete range of results.
The automatic scaling of the y-axis is switched off, and the scale has
to be specified manually via the "Min Y-Axis NF"/"Min Y-Axis
Temp"/"Max Y-Axis NF"/"Max Y-Axis Temp" fields.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys and Settings of the Noise Menu (R&S
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:BOTTom on page 93
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:TOP on page 95
Symbols ← Noise Trace Settings ← Display Settings
Activates or deactivates the symbol representation. If activated, each measured value
is marked by a symbol. This helps to distinguish result types in a monochrome printout.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:SYMBols on page 91
Gain Trace Settings ← Display Settings
The settings related to the graphical display of gain results.
Note that when using the Digital Baseband Interface (R&S FSV-B17), the Gain Trace
Settings are not available.
Y-Axis ← Gain Trace Settings ← Display Settings
Activates or deactivates the display of the gain trace.
Remote command:
DISPlay:DATA:TRACe<t> on page 90
DISPlay[:WINDow<n>]:TRACe<t>[:STATe] on page 91
FSV-K30)
Automatic Scaling ← Gain Trace Settings ← Display Settings
Activates or deactivates the automatic scaling of the Y-axis.
"On"
"Off"
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:AUTO on page 93
Min Y-Axis/Max Y-Axis ← Gain Trace Settings ← Display Settings
Specifies the minimum/maximum gain result that can be displayed graphically. It is
only possible to enter a value if the automatic scaling is deactivated (see "Automatic
Scaling" on page 58), and the y-axis is activated (see "Y-Axis" on page 59 field).
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:BOTTom on page 93
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:TOP on page 95
Symbols ← Gain Trace Settings ← Display Settings
Activates or deactivates the symbol representation. If activated, each measured value
is marked by a symbol. This helps to distinguish result types in a monochrome printout.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:SYMBols on page 91
The y-axis is scaled automatically. The automatic scaling algorithm
provides the optimal display of the complete range of results.
The automatic scaling of the y-axis is switched off, and the scale has
to be specified manually via the "Min Y-Axis"/"Max Y-Axis" fields.
Noise and Gain X-Axis Settings ← Display Settings
The settings related to noise and gain results
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Frequency Menu (R&S FSV-K30)
X-Axis ← Noise and Gain X-Axis Settings ← Display Settings
Specifies the scaling of the x-axis. This parameter is only editable in a frequency-converting measurement mode.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:X[:SCALe] on page 92
Editing Tables
The following functions are available as softkeys when a table in a dialog box is
focussed for editing.
Build Tbl ← Editing Tables
Updates the table according to the "Frequency Settings" (see the "Frequency Settings"
softkey, "Frequency Settings" on page 45).
Exit ← Editing Tables
Exits the edit mode of a table.
Insert ← Editing Tables
Inserts a row above the currently selected row and sets the focus on the first field of
the new row.
This softkey is only available if the "Frequency Table" contains less than 171 measurement steps.
Delete ← Editing Tables
Deletes the currently selected row. This action requires no confirmation.
Import ← Editing Tables
Opens a dialog box to select an Agilent ENR table to import. The file extension has to
be *.enr.
An import copies the ENR table into the default ENR table directory and replaces the
current table in the configuration dialog box.
Cal
Performs a calibration. The calibration status of the noise figure measurement is displayed in the title bar. For more details see Chapter 3.6, "Calibration", on page 18
This softkey is only available if the 2nd Stage Correction option in the "Measurement
Settings" dialog box is activated.
Remote command:
CONFigure:CORRection on page 86
6.2 Softkeys of the Frequency Menu (R&S FSV-K30)
The FREQ key displays the "Frequency" menu.
Center Freq
Defines the center frequency.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Span Menu (R&S FSV-K30)
Remote command:
[SENSe:]FREQuency:CENTer on page 112
Stepsize
Specifies the step size between the single measurement steps (i.e. entries in the frequency table). For details see "Step Freq" on page 46.
Remote command:
[SENSe:]FREQuency:STEP on page 113
Start
Specifies the start frequency. For details see "Start Freq" on page 45.
Remote command:
[SENSe:]FREQuency:STARt on page 113
Stop
Specifies the stop frequency. For details see "Stop Freq" on page 45.
Remote command:
[SENSe:]FREQuency:STOP on page 113
LO/IF
Specifies the fixed local oscillator or fixed IF frequency. This function is only available if
a frequency-converting measurement mode is selected ("Mode" field).
For details see "Fixed LO" on page 47.
Remote command:
LO: [SENSe:]CONFigure:MODE:SYSTem:LOSCillator:FREQuency
on page 111
IF: [SENSe:]CONFigure:MODE:SYSTem:IF:FREQuency on page 110
Frequency Axis
Specifies the scaling of the x-axis. This function is only available in a frequency-converting measurement mode.
For details see "X-Axis" on page 60.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:X[:SCALe] on page 92
Frequency Settings
Opens the "Frequency Settings" dialog box.
For details see "Frequency Settings" on page 45.
6.3 Softkeys of the Span Menu (R&S FSV-K30)
The SPAN key displays the "Span" menu.
Span
Specifies the frequency span.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Sweep Menu (R&S FSV-K30)
Remote command:
[SENSe:]FREQuency:SPAN on page 113
Sweep points
Defines the number of measured values to be collected during one sweep.
Remote command:
[SENSe:]SWEep:POINts on page 114
Frequency Settings
Opens the "Frequency Settings" dialog box.
For details see "Frequency Settings" on page 45.
6.4 AMPT key
This key opens the "Measurement Settings" dialog box and jumps directly to the "RF
Attenuation" field (see "RF Attenuation" on page 52).
In addition, the standard "Noise" menu is displayed, see Chapter 6.1, "Softkeys and
Settings of the Noise Menu (R&S FSV-K30)", on page 41.
6.5 BW key
This key opens the "Measurement Settings" dialog box and jumps directly to the
"RBW" field (see "RBW" on page 51).
6.6 Softkeys of the Sweep Menu (R&S FSV-K30)
The following table shows all softkeys available in the "Sweep" menu in Noise mode
(SWEEP key).
Continuous sweep.........................................................................................................62
Sweep Single................................................................................................................ 63
Cal.................................................................................................................................63
Fix Freq.........................................................................................................................63
Continuous sweep
Sets the continuous sweep mode: the sweep takes place continuously according to the
trigger settings. This is the default setting.
Remote command:
INITiate<n>:CONTinuous on page 101
CONFigure:LIST:CONTinuous on page 88
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Trace Menu (R&S FSV-K30)
Sweep Single
Sets the single sweep mode. The measurement stops after the defined number of
sweeps (Sweep points setting in the "Measurement Settings") has been performed. If a
measurement is started while another measurement is in progress, the first measurement is aborted and the new measurement started immediately.
For further details refer to Chapter 3.1, "Measurement Types", on page 11.
Remote command:
INITiate<n>:CONTinuous on page 101
CONFigure:LIST:SINGle on page 88
Cal
Performs a calibration. The calibration status of the noise figure measurement is displayed in the title bar. For more details see Chapter 3.6, "Calibration", on page 18
This softkey is only available if the 2nd Stage Correction option in the "Measurement
Settings" dialog box is activated.
Remote command:
CONFigure:CORRection on page 86
Fix Freq
Starts a fixed frequency measurement for the frequency that is currently selected in the
"Frequency List Results".
This softkey is only available after a frequency list measurement has been completed
and the measurement results are displayed in list form ("Display Settings" on page 57
softkey).
Remote command:
CONFigure:SINGle on page 88
[SENSe:]FREQuency[:CW|:FIXed] on page 111
6.7 Softkeys of the Trace Menu (R&S FSV-K30)
Using the trace memory facility, you can save graphical display results (max. 3 trace
sets) for comparison with subsequent measurements. This facility is recommended in
order to compare and to document the effects of small changes on the DUT.
The following table shows all softkeys available in the "Trace" menu in Noise mode
(TRACE key).
Display Graph/List.........................................................................................................63
Data->Mem1/ Data->Mem2/ Data->Mem3....................................................................64
Data On/Off...................................................................................................................64
Mem1 On/Off/Mem2 On/Off/Mem3 On/Off................................................................... 64
ASCII File Export...........................................................................................................64
Decim Sep.....................................................................................................................64
Display Graph/List
Switches between graphical and table display of the measurement results (see Chap-
ter 3.4, "Result Displays", on page 15).
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Trace Menu (R&S
Data->Mem1/ Data->Mem2/ Data->Mem3
Saves the current trace results to trace memory <n>. If a trace memory <n> contains
data, the corresponding softkey has a green background. The content of the trace
memory <n> is displayed via the Mem1 On/Off/Mem2 On/Off/Mem3 On/Off/" softkeys.
If data is transferred to a trace memory that already contains trace data, the new trace
data overwrites the current trace data in the memory.
Remote command:
CONFigure:ARRay:MEMory<1…3> ONCE on page 86
FETCh:ARRay:MEMory<1…3>:NOISe:FIGure? on page 97
FETCh:ARRay:MEMory<1…3>:NOISe:GAIN? on page 97
FETCh:ARRay:NOISE:TEMPerature? on page 97
Data On/Off
Switches the display of the current measurement results on or off. The display of trace
memory results is not affected if this softkey is pressed. If a new frequency list measurement is started, the display of the current result trace is switched on automatically.
Remote command:
DISPlay:CURRent:DATA[:STATe] on page 89
FSV-K30)
Mem1 On/Off/Mem2 On/Off/Mem3 On/Off
Switches the display of trace memory <n> on or off. This softkey is not available if no
data is held in the selected trace memory.
Remote command:
DISPlay:ARRay:MEMory<m>[:STATe] on page 89
ASCII File Export
Opens the "ASCII File Export Name" dialog box and saves the active peak list in ASCII
format to the specified file and directory.
The file consists of the header containing important scaling parameters and a data section containing the marker data. For details on an ASCII file see Chapter 3.9, "ASCII
File Export Format", on page 21.
This format can be processed by spreadsheet calculation programs, e.g. MS-Excel. It
is necessary to define ';' as a separator for the data import. Different language versions
of evaluation programs may require a different handling of the decimal point. It is therefore possible to select between separators '.' (decimal point) and ',' (comma) using the
"Decim Sep" softkey (see "Decim Sep" on page 64).
Remote command:
FORMat:DEXPort:DSEParator on page 98
Decim Sep
Selects the decimal separator with floating-point numerals for the ASCII Trace export
to support evaluation programs (e.g. MS-Excel) in different languages. The values '.'
(decimal point) and ',' (comma) can be set.
Remote command:
FORMat:DEXPort:DSEParator on page 98
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Marker To Menu (R&S FSV-K30)
6.8 Softkeys of the Marker Menu (R&S FSV-K30)
The following table shows all softkeys available in the "Marker" menu in Noise mode
(MKR key).
The R&S FSV-K30 option now has 4 markers, each of which can be set either to the
noise, the gain, or any of the traces in memory.
Marker 1/2/3/4...............................................................................................................65
Marker to Trace.............................................................................................................65
All Marker Off................................................................................................................ 65
Marker 1/2/3/4
Activates one of four possible markers and opens an edit dialog box to enter a value
for the marker to be set to. Pressing the softkey again deactivates the marker. These
softkeys are only available if measurement results are displayed.
Remote command:
CALCulate<n>:MARKer<m>[:STATe] on page 84
CALCulate<n>:MARKer<m>:X on page 85
CALCulate<n>:MARKer<m>:Y? on page 85
Marker to Trace
Opens a dialog box to select the trace (noise figure, gain or memory trace), on which
the currently selected marker is to be placed.
This softkey is only available if measurement results are displayed.
Remote command:
CALCulate<n>:MARKer<m>:TRACe on page 84
All Marker Off
Switches off the active marker. This softkey is only available if measurement results
are displayed.
Remote command:
CALCulate<n>:MARKer<m>:AOFF on page 83
6.9 Softkeys of the Marker To Menu (R&S FSV-K30)
The following table shows all softkeys available in the "Marker To" menu in Noise
mode (MKR-> key).
Select Marker (No)........................................................................................................66
Peak..............................................................................................................................66
Min................................................................................................................................ 66
Marker to Trace.............................................................................................................66
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Lines Menu (R&S FSV-K30)
Select Marker (No)
Opens a submenu to select and display one of 4 markers. "(No)" indicates the number
of the currently active marker. Peak and Min functions apply to this marker.
Peak
Sets the active marker/delta marker to the highest maximum of the trace.
Remote command:
CALCulate<n>:MARKer<m>:MAXimum[:PEAK] on page 83
Min
Sets the active marker/delta marker to the minimum of the selected trace.
Remote command:
CALCulate<n>:MARKer<m>:MINimum[:PEAK] on page 83
Marker to Trace
Opens a dialog box to select the trace (noise figure, gain or memory trace), on which
the currently selected marker is to be placed.
This softkey is only available if measurement results are displayed.
Remote command:
CALCulate<n>:MARKer<m>:TRACe on page 84
6.10 Softkeys of the Lines Menu (R&S FSV-K30)
The following table shows all softkeys available in the "Lines" menu in Noise mode
(LINES key).
New...............................................................................................................................66
└ Name.............................................................................................................. 67
└ Limit................................................................................................................ 67
└ Comment........................................................................................................ 67
└ Frequency.......................................................................................................67
└ Limit................................................................................................................ 67
Edit................................................................................................................................67
Enable/Disable..............................................................................................................67
Delete............................................................................................................................67
Edit Table mode............................................................................................................68
└ Exit..................................................................................................................68
└ Insert...............................................................................................................68
└ Delete..............................................................................................................68
New
Displays the "Limit Line" dialog box in edit mode with all fields necessary to define a
new limit line.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Lines Menu (R&S
Name ← New
Specifies the name of the limit line to uniquely identify every limit line. Any combination
of alphanumeric characters is allowed. If the entered name already exists, an error
message is displayed with the request to alter the name.
Remote command:
CALCulate<n>:LIMit<k>:NAME on page 80
Limit ← New
Specifies the result type (noise or gain) and the limit type (upper or lower) for the limit
line.
Remote command:
CALCulate<n>:LIMit<m>:TRACe on page 81
Comment ← New
Specifies a description for the limit line. Any combination of alphanumeric characters is
allowed.
Remote command:
CALCulate<n>:LIMit<k>:COMMent on page 77
FSV-K30)
Frequency ← New
Specifies the receive frequencies.
Remote command:
CALCulate<n>:LIMit<k>:CONTrol[:DATA] on page 77
Limit ← New
Specifies the limits for the receive frequencies.
Remote command:
CALCulate<n>:LIMit<k>:LOWer[:DATA] on page 78
CALCulate<n>:LIMit<k>:UPPer[:DATA] on page 81
Edit
Displays the "Limit Line" dialog box in edit mode with all data of the selected limit line.
For further details refer to the New softkey.
Enable/Disable
Enables or disables the selected limit line. Limit checking is only performed for activated limit lines. Only one limit line of each type can be active at a given time.
Remote command:
CALCulate<n>:LIMit<k>:STATe on page 80
CALCulate<n>:LIMit<k>:LOWer:STATe on page 80
CALCulate<n>:LIMit<k>:UPPer:STATe on page 82
Delete
Deletes the selected limit line.
Remote command:
CALCulate<n>:LIMit<k>:DELete on page 78
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Input/Output Menu (R&S FSV-K30)
Edit Table mode
The following functions are available if a limit line table is focussed for editing. For
details see Chapter 5.2, "Working With Limit Lines", on page 39 and Chapter 5.1, "Edit-
ing Tables", on page 39
Exit ← Edit Table mode
Exits the edit mode of a table.
Insert ← Edit Table mode
Inserts a row above the currently selected row and sets the focus on the first field of
the new row.
Delete ← Edit Table mode
Deletes the currently selected row. This action requires no confirmation.
6.11 Softkeys of the Input/Output Menu (R&S FSV-K30)
The following chapter describes all softkeys available in the "Input/Output" menu for
Noise Figure measurements. Note that the digital baseband functions are only available if the optional Digital Baseband Interface (R&S FSV-B17) is installed.
For details see the base unit description.
Input (AC/DC)................................................................................................................68
EXIQ..............................................................................................................................68
└ TX Settings..................................................................................................... 69
└ RX Settings.....................................................................................................69
└ Send To.......................................................................................................... 69
└ Firmware Update............................................................................................ 69
└ R&S Support...................................................................................................69
└ DigIConf..........................................................................................................69
Init Generator................................................................................................................ 70
Input (AC/DC)
Toggles the RF input of the R&S FSVA/FSV between AC and DC coupling.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:COUPling on page 99
EXIQ
Opens a configuration dialog box for an optionally connected R&S EX-IQ-BOX and a
submenu to access the main settings quickly.
Note: The EX-IQ-Box functionality is not supported for R&S FSV models
1307.9002Kxx.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Input/Output Menu (R&S
If the optional R&S DigIConf software is installed, the submenu consists only of one
key to access the software. Note that R&S DigIConf requires a USB connection
(not LAN!) from the R&S FSVA/FSV to the R&S EX-IQ-BOX in addition to the R&S
Digital I/Q Interface connection. R&S DigIConf version 2.10 or higher is required.
For typical applications of the R&S EX-IQ-BOX see also the description of the R&S
Digital I/Q Interface (R&S FSV-B17) in the base unit manual.
For details on configuration see the "R&S®Ex I/Q Box - External Signal Interface Module Manual".
For details on installation and operation of the R&S DigIConf software, see the
"R&S®EX-IQ-BOX Digital Interface Module R&S®DigIConf Software Operating Manual".
TX Settings ← EXIQ
Opens the "EX-IQ-BOX Settings" dialog box to configure the R&S FSVA/FSV for digital
output to a connected device ("Transmitter" Type).
RX Settings ← EXIQ
Opens the "EX-IQ-BOX Settings" dialog box to configure the R&S FSVA/FSV for digital
input from a connected device ("Receiver" Type).
FSV-K30)
Send To ← EXIQ
The configuration settings defined in the dialog box are transferred to the R&S EX-IQBOX.
Firmware Update ← EXIQ
If a firmware update for the R&S EX-IQ-BOX is delivered with the R&S FSVA/FSV firmware, this function is available. In this case, when you select the softkey, the firmware
update is performed.
R&S Support ← EXIQ
Stores useful information for troubleshooting in case of errors.
This data is stored in the C:\R_S\Instr\user\Support directory on the instru-
ment.
If you contact the Rohde&Schwarz support to get help for a certain problem, send
these files to the support in order to identify and solve the problem faster.
DigIConf ← EXIQ
Starts the optional R&S DigIConf application. This softkey is only available if the
optional software is installed.
To return to the R&S FSVA/FSV application, press any key on the front panel. The
application is displayed with the "EXIQ" menu, regardless of which key was pressed.
For details on the R&S DigIConf application, see the "R&S®EX-IQ-BOX Digital Interface Module R&S®DigIConf Software Operating Manual".
Note: If you close the R&S DigIConf window using the "Close" icon, the window is
minimized, not closed.
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R&S® FSV-K30
Menu and Softkey Description (R&S FSV-K30)
Softkeys of the Input/Output Menu (R&S FSV-K30)
If you select the "File > Exit" menu item in the R&S DigIConf window, the application is
closed. Note that in this case the settings are lost and the EX-IQ-BOX functionality is
no longer available until you restart the application using the "DigIConf" softkey in the
R&S FSVA/FSV once again.
Remote command:
Remote commands for the R&S DigIConf software always begin with SOURce:EBOX.
Such commands are passed on from the R&S FSVA/FSV to the R&S DigIConf automatically which then configures the R&S EX-IQ-BOX via the USB connection.
All remote commands available for configuration via the R&S DigIConf software are
described in the "R&S®EX-IQ-BOX Digital Interface Module R&S®DigIConf Software
Operating Manual".
Example 1:
SOURce:EBOX:*RST
SOURce:EBOX:*IDN?
Result:
"Rohde&Schwarz,DigIConf,02.05.436 Build 47"
Example 2:
SOURce:EBOX:USER:CLOCk:REFerence:FREQuency 5MHZ
Defines the frequency value of the reference clock.
Init Generator
This softkey immediately initializes the external signal generator with the settings configured in the R&S FSV-K30 option (see "Generator Settings/ Generator Frequency"
on page 54). It also switches the external generator's RF output on. If any of the external generator settings have changed, initialization is required before a measurement
using the external generator control can be run. Alternatively, initialization can be performed automatically before each measurement (see "Init Before Meas" on page 56).
Remote command:
SYSTem:CONFigure:GENerator:INITialise:IMMediate on page 124
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R&S® FSV-K30
7 Status Reporting System (R&S FSV-K30)
Status Reporting System (R&S FSV-K30)
STATus:QUEStionable Register
Additionally to the registers provided by the base system, the following registers are
used or modified in the Noise Figure Measurements option (R&S FSV-K30):
●
Chapter 7.1, "STATus:OPERation Register", on page 71
Although this register is provided by the base system, the Noise Figure Measurements
option makes use of bits not used within the base system.
●
Chapter 7.2, "STATus:QUEStionable Register", on page 71
Although this register is provided by the base system, the Noise Figure Measurements
option uses different bits and definitions.
●
Chapter 7.3, "STATus:QUEStionable:CORRection Register", on page 72
This register is provided by the R&S FSV-K30 option.
The following registers are provided by the base system and are not available from the
Noise Figure Measurements option (R&S FSV-K30) command tree:
●
STATus:QUEStionable:ACPLimit Register
●
STATus:QUEStionable:LIMit Register
●
STATus:QUEStionable:LMARgin Register
●
STATus:QUEStionable:POWer Register
Detailed information on the status registers of the base system is given in section Status Reporting System. In this section, only the new and altered status registers/bits for
the Noise Figure Measurements option (R&S FSV-K30) are described.
7.1 STATus:OPERation Register
Additionally to the bits assigned by the base system (for details refer to STATus:OPERation Register), the bits no. 4 and 7 are defined:
Bit No Meaning
4 MEASuring
A '1' in this bit position indicates that a measurement is in progress.
7 CORRecting
Indicates that a user calibration is in progress.
7.2 STATus:QUEStionable Register
Additionally to the bits assigned by the base system (for details refer to STATus:QUEStionable Register), the bit no. 11 is defined differently:
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R&S® FSV-K30
Status Reporting System (R&S FSV-K30)
STATus:QUEStionable:CORRection Register
Bit No Meaning
11 CORRection
This bit is set if questionable correction data occurs (see also section STA-
Tus:QUEStionable:CORRection Register).
7.3 STATus:QUEStionable:CORRection Register
This register comprises information about the correction state of noise measurements.
It can be queried by STATus:QUEStionable:CONDition? and
STATus:QUEStionable[:EVENt]? commands.
Bit No Meaning
0 NO CORRection
User calibration is required (i.e. not done, or setup changed). Initial value is 1. Will
remain 1 until a user calibration is done. Set to 1 at the start of a user calibration. It
will go to 0 at the end of a user calibration only if all points of at least one range have
been calibrated.
1 Not used
2 Deprecated; not used
3 Missing Loss or ENR values
No ENR, Loss In and/or Loss Out can be determined for one or all of the measurement frequencies. This occurs when using tables of ENR, Loss In and/or Loss out
values. Check that the frequency ranges of the tables cover the range of frequencies
to be measured. For each measurement frequency where ENR, Loss In or Loss Out
cannot be determined, 0 is used.
4 to 15 Not used
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R&S® FSV-K30
8 Remote Control Commands
8.1 Notation........................................................................................................................73
8.2 CALCulate Subsystem (Noise Figure, R&S FSV-K30)............................................. 76
8.2.1 CALCulate:LIMit Subsystem (Noise Figure, K30)......................................................... 76
8.2.2 CALculate:MARker subsystem..................................................................................... 83
8.3 CONFigure Subsystem (Noise Figure, R&S FSV-K30)............................................ 86
8.4 DISPlay Subsystem (Noise Figure, K30)...................................................................89
Remote Control Commands
Notation
This section describes the remote commands specific to the Noise Figure Measurements option (R&S FSV-K30). The abbreviation NF stands for the operating mode of
noise figure measurements. For details on conventions used in this chapter refer to
Chapter 8.1, "Notation", on page 73.
For further information on analyzer or basic settings commands, refer to the corresponding Subsystem in the base unit description.
8.5 FETCh Subsystem (Noise Figure, K30).....................................................................96
8.6 FORMat Subsystem.................................................................................................... 98
8.7 INPut Subsystem.........................................................................................................99
8.8 INITiate Subsystem................................................................................................... 101
8.9 INSTrument Subsystem (Noise Figure, R&S FSV-K30)......................................... 102
8.10 SENSe Subsystem (Noise Figure, R&S FSV-K30)..................................................102
8.10.1 Equipment Settings Commands..................................................................................103
8.10.2 Measurement Settings (SENSe:CONFigure) Commands ......................................... 108
8.11 SOURce Subsystem..................................................................................................115
8.12 STATus Subsystem (Noise Figure, R&S FSV-K30)................................................118
8.13 SYSTem Subsystem (Noise Figure, R&S FSV-K30)...............................................120
8.1 Notation
In the following sections, all commands implemented in the instrument are first listed
and then described in detail, arranged according to the command subsystems. The
notation is adapted to the SCPI standard. The SCPI conformity information is included
in the individual description of the commands.
Individual Description
The individual description contains the complete notation of the command. An example
for each command, the *RST value and the SCPI information are included as well.
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R&S® FSV-K30
Remote Control Commands
Notation
The options and operating modes for which a command can be used are indicated by
the following abbreviations:
Abbreviation Description
A spectrum analysis
A-F spectrum analysis – span > 0 only (frequency mode)
A-T spectrum analysis – zero span only (time mode)
ADEMOD analog demodulation (option R&S FSV-K7)
BT Bluetooth (option R&S FSV-K8)
CDMA CDMA 2000 base station measurements (option R&S FSV-K82)
EVDO 1xEV-DO base station analysis (option R&S FSV-K84)
GSM GSM/Edge measurements (option R&S FSV-K10)
IQ IQ Analyzer mode
OFDM WiMAX IEEE 802.16 OFDM measurements (option R&S FSV-K93)
OFDMA/WiBro WiMAX IEEE 802.16e OFDMA/WiBro measurements (option R&S FSV-K93)
NF Noise Figure measurements (R&S FSV-K30)
PHN Phase Noise measurements (R&S FSV-K40)
PSM Power Sensor measurements (option R&S FSV-K9)
SFM Stereo FM measurements (optionR&S FSV-K7S)
SPECM Spectogram mode (option R&S FSV-K14)
TDS TD-SCDMA base station / UE measurements (option R&S FSV-K76/K77)
VSA Vector Signal Analysis (option R&S FSV-K70)
WCDMA 3GPP Base Station measurements (option R&S FSV-K72), 3GPP UE measure-
ments (option R&S FSV-K73)
WLAN WLAN TX measurements (option R&S FSV-K91)
The spectrum analysis mode is implemented in the basic unit. For the other modes, the
corresponding options are required.
Upper/Lower Case Notation
Upper/lower case letters are used to mark the long or short form of the key words of a
command in the description. The instrument itself does not distinguish between upper
and lower case letters.
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R&S® FSV-K30
Remote Control Commands
Notation
Special Characters
| A selection of key words with an identical effect exists for several commands. These keywords
are indicated in the same line; they are separated by a vertical stroke. Only one of these keywords needs to be included in the header of the command. The effect of the command is independent of which of the keywords is used.
Example:
SENSe:FREQuency:CW|:FIXed
The two following commands with identical meaning can be created. They set the frequency of the fixed frequency signal to 1 kHz:
SENSe:FREQuency:CW 1E3
SENSe:FREQuency:FIXed 1E3
A vertical stroke in parameter indications marks alternative possibilities in the sense of
"or". The effect of the command differs, depending on which parameter is used.
Example: Selection of the parameters for the command
[SENSe<1…4>:]AVERage<1…4>:TYPE VIDeo | LINear
[] Key words in square brackets can be omitted when composing the header. The full command
length must be accepted by the instrument for reasons of compatibility with the SCPI standards.
Parameters in square brackets can be incorporated optionally in the command or omitted as
well.
{} Parameters in braces can be incorporated optionally in the command, either not at all, once or
several times.
Description of Parameters
Due to the standardization, the parameter section of SCPI commands consists always
of the same syntactical elements. SCPI has therefore specified a series of definitions,
which are used in the tables of commands. In the tables, these established definitions
are indicated in angled brackets (<…>) and is briefly explained in the following.
For details see the chapter "SCPI Command Structure" in the base unit description.
<Boolean>
This keyword refers to parameters which can adopt two states, "on" and "off". The "off"
state may either be indicated by the keyword OFF or by the numeric value 0, the "on"
state is indicated by ON or any numeric value other than zero. Parameter queries are
always returned the numeric value 0 or 1.
<numeric_value> <num>
These keywords mark parameters which may be entered as numeric values or be set
using specific keywords (character data). The following keywords given below are permitted:
●
MAXimum: This keyword sets the parameter to the largest possible value.
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R&S® FSV-K30
Remote Control Commands
CALCulate Subsystem (Noise Figure, R&S FSV-K30)
●
MINimum: This keyword sets the parameter to the smallest possible value.
●
DEFault: This keyword is used to reset the parameter to its default value.
●
UP: This keyword increments the parameter value.
●
DOWN: This keyword decrements the parameter value.
The numeric values associated to MAXimum/MINimum/DEFault can be queried by
adding the corresponding keywords to the command. They must be entered following
the quotation mark.
Example:
SENSe:FREQuency:CENTer? MAXimum
Returns the maximum possible numeric value of the center frequency as result.
<arbitrary block program data>
This keyword is provided for commands the parameters of which consist of a binary
data block.
8.2 CALCulate Subsystem (Noise Figure, R&S FSV-K30)
The CALCulate subsystem checks the marker functions and contains commands for
limit lines and their limit checks.
Note that the R&S FSV-K30 option now has 4 markers; thus, the suffix for
CALCulate:MARKer<m> commands can have the values 1-4.
8.2.1 CALCulate:LIMit Subsystem (Noise Figure, K30)......................................................... 76
8.2.2 CALculate:MARker subsystem..................................................................................... 83
8.2.1 CALCulate:LIMit Subsystem (Noise Figure, K30)
The CALCulate:LIMit subsystem contains commands for the limit lines and the corresponding limit checks.
In contrast to the base unit, only 6 limit lines can be active at the same time (indicated
by LIMIT1 to LIMIT6). They are assigned to a particular measurement type rather than
a particular trace (see CALCulate<n>:LIMit<m>:TRACe on page 81). Otherwise,
the commands are the same as for the base unit.
CALCulate<n>:LIMit<k>:COMMent....................................................................................77
CALCulate<n>:LIMit<k>:CONTrol[:DATA]...........................................................................77
CALCulate<n>:LIMit<k>:CONTrol:SHIFt.............................................................................78
CALCulate<n>:LIMit<k>:LOWer[:DATA]............................................................................. 78
CALCulate<n>:LIMit<k>:DELete........................................................................................78
CALCulate<n>:LIMit<k>:FAIL?.......................................................................................... 79
CALCulate<n>:LIMit<k>:LOWer:SHIFt............................................................................... 79
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R&S® FSV-K30
Remote Control Commands
CALCulate Subsystem (Noise Figure, R&S FSV-K30)
CALCulate<n>:LIMit<k>:LOWer:STATe..............................................................................80
CALCulate<n>:LIMit<k>:NAME......................................................................................... 80
CALCulate<n>:LIMit<k>:STATe.........................................................................................80
CALCulate<n>:LIMit<m>:TRACe....................................................................................... 81
CALCulate<n>:LIMit<k>:UPPer[:DATA]..............................................................................81
CALCulate<n>:LIMit<k>:UPPer:SHIFt................................................................................ 82
CALCulate<n>:LIMit<k>:UPPer:STATe.............................................................................. 82
CALCulate<n>:LIMit<k>:COMMent <Comment>
This command defines a comment for the selected limit line in all windows.
Suffix:
<n>
.
irrelevant
<k> Selects the limit line.
Parameters:
<Comment> String containing the comment. The maximum number of char-
acters the string may contain is 40.
Example:
CALC:LIM5:COMM 'Upper limit for spectrum'
Defines the comment for limit line 5.
Manual operation: See "Comment" on page 67
CALCulate<n>:LIMit<k>:CONTrol[:DATA] <LimitLinePoints>
This command defines the horizontal definition points of a lower limit line.
Suffix:
<n>
.
Selects the measurement window.
<k> 1...8
Selects the limit line.
Parameters:
<LimitLinePoints> Variable number of x-axis values.
Note that the number of horizontal values has to be the same as
the number of vertical values set with CALCulate<n>:
LIMit<k>:LOWer[:DATA] or CALCulate<n>:LIMit<k>:
UPPer[:DATA]. If not, the R&S FSVA/FSV either adds missing
values or ignores surplus values.
*RST: - (CALC:LIM is set to OFF)
Example:
CALC:LIM2:CONT 1 MHz,30 MHz,100 MHz,300 MHz,1
GHz
Defines 5 reference values for the x-axis of limit line 2.
CALC:LIM2:CONT?
Outputs the reference values for the x-axis of limit line 2 separated by a comma.
Manual operation: See "Frequency" on page 67
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R&S® FSV-K30
Remote Control Commands
CALCulate Subsystem (Noise Figure, R&S FSV-K30)
CALCulate<n>:LIMit<k>:CONTrol:SHIFt <Distance>
This command moves a complete limit line horizontally.
Compared to defining an offset, this command actually changes the limit line definition
points by the value you define.
Suffix:
<n>
<k> Selects the limit line.
Parameters:
<Distance> Numeric value that defines the distance of the shift.
Example:
CALCulate<n>:LIMit<k>:LOWer[:DATA]
This command defines the vertical definition points of a lower limit line.
If the measured values are smaller than the LOWer limit line, the limit check is violated.
Suffix:
<n>
<k> 1...8
Parameters:
<LimitLinePoints> Variable number of x-axis values.
.
Selects the measurement window.
The unit depends on the scale of the x-axis.
CALC:LIM2:CONT:SHIF 50KHZ
Shifts all reference values of limit line 2 by 50 kHz.
<LimitLinePoints>
.
irrelevant
Selects the limit line.
Note that the number of horizontal values has to be the same as
the number of vertical values set with CALCulate<n>:
LIMit<k>:CONTrol[:DATA]. If not, the R&S FSVA/FSV
either adds missing values or ignores surplus values.
*RST: (LIMit:STATe is set to OFF)
Example:
Manual operation: See "Limit" on page 67
CALCulate<n>:LIMit<k>:DELete
This command deletes a limit line.
Suffix:
<n>
<k> Selects the limit line.
CALC:LIM2:LOW -30,-40,-10,-40,-30
Defines 5 lower limit values for limit line 2 in the preset unit.
CALC:LIM2:LOW?
Outputs the lower limit values of limit line 2 separated by a
comma.
.
irrelevant
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R&S® FSV-K30
Remote Control Commands
CALCulate Subsystem (Noise Figure, R&S FSV-K30)
Example:
Usage: Event
Manual operation: See "Delete" on page 67
CALCulate<n>:LIMit<k>:FAIL?
This command queries the result of a limit check.
Note that for SEM measurements, the limit line suffix <k> is irrelevant, as only one specific SEM limit line is checked for the currently relevant power class.
To get a valid result, you have to perform a complete measurement with synchronization to the end of the measurement before reading out the result. This is only possible
for single sweeps.
Suffix:
<n>
<k> limit line
Return values:
<Result> 0
CALC:LIM1:DEL
Deletes limit line 1.
.
irrelevant
PASS
1
FAIL
Example:
Usage: Query only
CALCulate<n>:LIMit<k>:LOWer:SHIFt <Distance>
This command moves a complete lower limit line vertically.
Compared to defining an offset, this command actually changes the limit line definition
points by the value you define.
Suffix:
<n>
<k> Selects the limit line.
Parameters:
<Distance> Numeric value that defines the distance of the shift.
Example:
INIT;*WAI
Starts a new sweep and waits for its end.
CALC:LIM3:FAIL?
Queries the result of the check for limit line 3.
.
irrelevant
CALC:LIM3:LOW:SHIF 20DB
Shifts all Y values of limit line 3 by 20 dB.
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R&S® FSV-K30
Remote Control Commands
CALCulate Subsystem (Noise Figure, R&S FSV-K30)
CALCulate<n>:LIMit<k>:LOWer:STATe <State>
This command turns a lower limit line on and off.
Before you can use this command, you have to select a limit line with
CALCulate<n>:LIMit<k>:NAME.
The limit check is activated separately with CALCulate<n>:LIMit<k>:STATe. The
result of the limit check can be queried with CALCulate<n>:LIMit<k>:FAIL?.
Suffix:
<n>
<k> 1...8
Parameters:
<State> ON | OFF
Example:
Manual operation: See "Enable/Disable" on page 67
CALCulate<n>:LIMit<k>:NAME <Name>
This command selects a limit line that already exists or defines a name for a new limit
line.
Suffix:
<n>
<k> 1...8 (NF: 1...6)
.
irrelevant
Selects the limit line.
*RST: OFF
CALC:LIM4:LOW:STAT ON
Switches on limit line 4 (lower limit).
.
irrelevant
Selects the limit line.
Parameters:
<Name> String containing the limit line name.
*RST: REM1 to REM8 for lines 1 to 8
Example:
Manual operation: See "Name" on page 67
CALCulate<n>:LIMit<k>:STATe <State>
This command turns the limit check on and off.
To query the limit check result, use CALCulate<n>:LIMit<k>:FAIL?.
Suffix:
<n>
<k> Selects the limit line.
CALC:LIM1:NAME 'FM1'
Assigns the name FM1 to limit line 1.
.
irrelevant
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R&S® FSV-K30
Remote Control Commands
CALCulate Subsystem (Noise Figure, R&S FSV-K30)
Parameters:
<State> ON | OFF
*RST: OFF
Example:
Manual operation: See "Enable/Disable" on page 67
CALCulate<n>:LIMit<m>:TRACe <MeasType>
This command assigns a limit line to a particular measurement type.
Suffix:
<n>
<m> 1...6
Parameters:
<MeasType> NFIGure | TEFFective | GAIN
CALC:LIM:STAT ON
Switches on the limit check for limit line 1.
.
1...4
irrelevant
limit line
NFIGure
noise figure
TEFFective
noise temperature
GAIN
gain
Example:
Mode: NF
Manual operation: See "Limit" on page 67
CALCulate<n>:LIMit<k>:UPPer[:DATA] <LimitLinePoints>
This command defines the vertical definition points of an upper limit line.
If the measured values exceed the UPPer limit line, the limit is violated.
Suffix:
<n>
<k> 1...8
CALC:LIM2:TRAC NFIG
Assigns limit line 2 to the noise figure measurement.
CALC:LIM3:TRAC GAIN
Assigns limit line 3 to the gain measurement.
.
irrelevant
Selects the limit line.
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R&S® FSV-K30
Remote Control Commands
CALCulate Subsystem (Noise Figure, R&S FSV-K30)
Parameters:
<LimitLinePoints> Variable number of x-axis values.
Note that the number of horizontal values has to be the same as
the number of vertical values set with CALCulate<n>:
LIMit<k>:CONTrol[:DATA]. If not, the R&S FSVA/FSV
either adds missing values or ignores surplus values.
*RST: (LIMit:STATe is set to OFF)
Example:
Manual operation: See "Limit" on page 67
CALCulate<n>:LIMit<k>:UPPer:SHIFt <Value>
This command moves a limit line by the indicated value in Y direction.
Suffix:
<n>
<k> limit line
Parameters:
<Value> <numeric_value>
Example:
Mode: A, ADEMOD, CDMA, EVDO, NF, TDS
CALC:LIM2:UPP -10,0,0,-10,-5
Defines 5 upper limit values for limit line 2 in the preset unit.
CALC:LIM2:UPP?
Outputs the upper limit values for limit line 2 separated by a
comma.
.
irrelevant
CALC:LIM3:UPP:SHIF 20
Shifts all Y values of limit line 3 by 20 limit line units, e.g. dB.
CALCulate<n>:LIMit<k>:UPPer:STATe <State>
This command turns a lower limit line on and off.
Before you can use this command, you have to select a limit line with
CALCulate<n>:LIMit<k>:NAME.
The limit check is activated separately with CALCulate<n>:LIMit<k>:STATe. The
result of the limit check can be queried with CALCulate<n>:LIMit<k>:FAIL?.
Suffix:
<n>
<k> 1...8
Parameters:
<State> ON | OFF
Example:
.
irrelevant
Selects the limit line.
*RST: OFF
CALC:LIM4:UPP:STAT ON
Switches on limit line 4 (upper limit).
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CALCulate Subsystem (Noise Figure, R&S FSV-K30)
Manual operation: See "Enable/Disable" on page 67
8.2.2 CALculate:MARker subsystem
CALCulate<n>:MARKer<m>:AOFF
This command all markers off, including delta markers and marker measurement functions.
Suffix:
<n>
.
Selects the measurement window.
<m> depends on mode
irrelevant
Example:
CALC:MARK:AOFF
Switches off all markers.
Usage: Event
Manual operation: See "All Marker Off" on page 65
CALCulate<n>:MARKer<m>:MAXimum[:PEAK]
This command positions the marker on the current trace maximum.
The corresponding marker is activated first or switched to the marker mode.
If no maximum value is found on the trace (level spacing to adjacent values < peak
excursion), an execution error (error code: -200) is produced.
Suffix:
<n>
.
Selects the measurement window.
<m> depends on mode
Selects the marker.
Example:
CALC:MARK2:MAX
Positions marker 2 to the maximum value of the trace.
Usage: Event
Manual operation: See "Peak" on page 66
CALCulate<n>:MARKer<m>:MINimum[:PEAK]
This command positions the marker on the current trace minimum.
The corresponding marker is activated first or switched to marker mode, if necessary.
If no minimum value is found on the trace (level spacing to adjacent values < peak
excursion), an execution error (error code: -200) is produced.
Suffix:
<n>
.
Selects the measurement window.
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CALCulate Subsystem (Noise Figure, R&S FSV-K30)
<m> depends on mode
Selects the marker.
Example:
Usage: Event
Manual operation: See "Min" on page 66
CALCulate<n>:MARKer<m>[:STATe] <State>
This command turns markers on and off.
If the corresponding marker number is currently active as a deltamarker, it is turned
into a normal marker.
Suffix:
<n>
<m> depends on mode
Parameters:
<State> ON | OFF
Example:
CALC:MARK2:MIN
Positions marker 2 to the minimum value of the trace.
.
Selects the measurement window.
Selects the marker.
*RST: OFF
CALC:MARK3 ON
Switches on marker 3 or switches to marker mode.
Manual operation: See "Marker 1/2/3/4" on page 65
CALCulate<n>:MARKer<m>:TRACe <Trace>
This command selects the trace a marker is positioned on.
The corresponding trace must have a trace mode other than "Blank".
If necessary, the corresponding marker is switched on prior to the assignment.
Suffix:
<n>
<m> depends on mode
.
Selects the measurement window.
Selects the marker.
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CALCulate Subsystem (Noise Figure, R&S FSV-K30)
Parameters:
<Trace> NOISe | GAIN | NMEM1 | NMEM2 | NMEM3 | GMEM1 |
GMEM2 | GMEM3
NOISe: Current noise trace
GAIN: Current gain trace
NMEM1 | NMEM2 | NMEM3: noise trace stored in memory 1, 2
or 3
The memory must have been populated first using the command
CONFigure:ARRay:MEMory<1…3> ONCE
GMEM1 | GMEM2 | GMEM3: gain trace stored in memory 1, 2,
or 3
The memory must have been populated first using the command
CONFigure:ARRay:MEMory<1…3> ONCE
Example:
Manual operation: See "Marker to Trace" on page 65
CALCulate<n>:MARKer<m>:X
This command positions a marker on a particular coordinate on the x-axis.
Suffix:
<n>
<m> Selects the marker.
Parameters:
<Position> Numeric value that defines the marker position on the x-axis.
Example:
Manual operation: See "Marker 1/2/3/4" on page 65
CALC:MARK3:TRAC 2
Assigns marker 3 to trace 2.
<Position>
.
Selects the measurement window.
The unit is either Hz (frequency domain) or s (time domain) or
dB (statistics).
Range: The range depends on the current x-axis range.
CALC:MARK2:X 1.7MHz
Positions marker 2 to frequency 1.7 MHz.
CALCulate<n>:MARKer<m>:Y?
This command queries the measured value of a marker.
The corresponding marker is activated before or switched to marker mode, if necessary.
To get a valid result, you have to perform a complete measurement with synchronization to the end of the measurement before reading out the result. This is only possible
for single sweeps.
Suffix:
<n>
<m> Selects the marker.
.
Selects the measurement window.
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CONFigure Subsystem (Noise Figure, R&S FSV-K30)
Return values:
<Result> The measured value of the selected marker is returned.
Example:
INIT:CONT OFF
Switches to single sweep mode.
CALC:MARK2 ON
Switches marker 2.
INIT;*WAI
Starts a sweep and waits for the end.
CALC:MARK2:Y?
Outputs the measured value of marker 2.
Usage: Query only
Manual operation: See "Marker 1/2/3/4" on page 65
8.3 CONFigure Subsystem (Noise Figure, R&S FSV-K30)
The CONFigure subsystem contains commands for configuring complex measurement
tasks.
CONFigure:ARRay:MEMory<1…3> ONCE.........................................................................86
CONFigure:CORRection...................................................................................................86
CONFigure:FREQ:CONTinuous........................................................................................ 87
CONFigure:FREQ:SINGle.................................................................................................87
CONFigure:LIST:CONTinuous...........................................................................................88
CONFigure:LIST:SINGle...................................................................................................88
CONFigure:SINGle...........................................................................................................88
CONFigure:ARRay:MEMory<1…3> ONCE
This command saves the current trace results (noise figure, noise temperature and
noise gain traces) to trace memory <n>.
Example:
INIT
Starts a new measurement, if no measurement sequence is
already in progress.
CONF:ARR:MEM2 ONCE
Copies the last recorded measurement result into the memory 2.
Usage: Event
Mode: NF
Manual operation: See "Data->Mem1/ Data->Mem2/ Data->Mem3" on page 64
CONFigure:CORRection
This command configures for a second stage correction measurement.
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CONFigure Subsystem (Noise Figure, R&S FSV-K30)
Example:
Usage: Event
Mode: NF
Manual operation: See "Cal" on page 60
CONFigure:FREQ:CONTinuous
This command configures a single frequency measurement in continuous sweep
mode.
This command is not available when using Digital Baseband Interface (R&S FSV-B17).
Example:
CONF:CORR
Configures to run second stage correction measure measurements.
INIT
Starts a new measurement, if no measurement sequence is
already in progress.
FREQ:STAR 20MHz
Defines the single frequency to be measured as 20 MHz.
CONF:FREQ:CONT
Configures to run a single frequency measurement in continuous
sweep mode.
INIT
Starts a new measurement, if no measurement sequence is
already in progress.
Usage: Event
Mode: NF
Manual operation: See "Single Freq" on page 45
CONFigure:FREQ:SINGle
This command configures a single frequency measurement in single sweep mode.
This command is not available when using Digital Baseband Interface (R&S FSV-B17).
Example:
Usage: Event
Mode: NF
Manual operation: See "Single Freq" on page 45
FREQ:STAR 20MHz
Defines the single frequency to be measured as 20 MHz.
CONF:FREQ:SING
Configures to run a single frequency measurement in single
sweep mode.
INIT
Starts a new measurement, if no measurement sequence is
already in progress.
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CONFigure Subsystem (Noise Figure, R&S FSV-K30)
CONFigure:LIST:CONTinuous
This command configures a frequency list measurement in continuous sweep mode.
Example:
Usage: Event
Mode: NF
Manual operation: See "Continuous sweep" on page 62
CONFigure:LIST:SINGle
This command configures a frequency list measurement in single sweep mode.
Example:
Usage: Event
CONF:LIST:CONT
Configures to run a frequency list measurement in continuous
sweep mode.
INIT
Starts a new measurement, if no measurement sequence is
already in progress.
CONF:LIST:SING
Configures to run frequency list measurement in single sweep
modes.
INIT
Starts a new measurement, if no measurement sequence is
already in progress.
Mode: NF
Manual operation: See "Sweep Single" on page 63
CONFigure:SINGle
This command configures a fixed frequency measurement. It requires a frequency list
measurement to have been performed previously (see CONFigure:LIST:SINGle/
CONFigure:LIST:CONTinuous on page 88 or CONFigure:FREQ:SINGle/
CONFigure:FREQ:CONTinuous on page 87
Example:
CONF:LIST:SING
Configures to run a frequency list measurement in single sweep
mode.
INIT
Performs the frequency list measurement.
CONF:SING
Configures to run fixed frequency measurements.
FREQ 10MHz
Sets a fixed frequency of 10 MHz.
INIT
Starts a new measurement, if no measurement sequence is
already in progress.
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DISPlay Subsystem (Noise Figure, K30)
Usage: Event
Mode: NF
Manual operation: See "Fix Freq" on page 63
8.4 DISPlay Subsystem (Noise Figure, K30)
The DISPLay subsystem controls the selection and presentation of textual and graphic
information as well as of measurement data on the display.
DISPlay:ARRay:MEMory<m>[:STATe]............................................................................... 89
DISPlay:CURRent:DATA[:STATe]..................................................................................... 89
DISPlay:DATA:TRACe<t>.................................................................................................90
DISPlay:FORMat............................................................................................................. 90
DISPlay[:WINDow<n>]:TABLe...........................................................................................91
DISPlay[:WINDow<n>]:TRACe<t>[:STATe].........................................................................91
DISPlay[:WINDow<n>]:TRACe<t>:SYMBols....................................................................... 91
DISPlay[:WINDow<n>]:TRACe<t>:X[:SCALe]..................................................................... 92
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:AUTO........................................................... 93
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:BOTTom....................................................... 93
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel......................................................... 94
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:AUTO............................................... 95
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:TOP..............................................................95
DISPlay:ARRay:MEMory<m>[:STATe] <State>
This command switches the display of the trace memory on or off.
Suffix:
<m>
.
1...3
trace memory
Parameters:
<State> ON | OFF
*RST: OFF
Example:
DISP:ARR:MEM2 ON
Switches on the display of memory 2.
Mode: NF
Manual operation: See "Mem1 On/Off/Mem2 On/Off/Mem3 On/Off" on page 64
DISPlay:CURRent:DATA[:STATe] <State>
This command switches the display of the current measurement results on or off.
Parameters:
<State> ON | OFF
*RST: ON
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DISPlay Subsystem (Noise Figure, K30)
Example:
Mode: NF
Manual operation: See "Data On/Off" on page 64
DISPlay:DATA:TRACe<t> <ResultType>
This command specifies the type of noise results to be displayed in trace 1.
Suffix:
<t>
Return values:
<ResultType> NFIGure | TEFFective | GAIN
DISP:CURR:DATA OFF
Removes the current result traces from display.
.
1
trace; only trace 1 is valid for noise results
NFIGure
noise figure results in dB
TEFFective
noise temperature in K
GAIN
gain
Gain is not available when using Digital Baseband Interface
(R&S FSV-B17).
*RST: NFIGure
Example:
Mode: NF
Manual operation: See "Y-Axis" on page 58
DISPlay:FORMat <Format>
This command activates or deactivates the combined trace display of noise and gain
results.
Combined trace display (SPLit) is not available when using Digital Baseband Interface
(R&S FSV-B17).
Parameters:
<Format> SPLit | SINGle
Example:
Mode: NF
Manual operation: See "Combined Trace Display" on page 57
DISP:DATA:TRAC1 NFIG
Displays the noise figure results in trace 1.
See "Y-Axis" on page 59
*RST: SING
DISP:FORM SPL
Displays noise and gain results in separate graphs.
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DISPlay Subsystem (Noise Figure, K30)
DISPlay[:WINDow<n>]:TABLe <State>
This command activates or deactivates the result table display.
Suffix:
<n>
Parameters:
<State> ON | OFF
Example:
Mode: NF
DISPlay[:WINDow<n>]:TRACe<t>[:STATe] <State>
This command activates or deactivates the display of the corresponding trace and related information.
Suffix:
<n>
<t> 1 | 2
.
1
window
*RST: OFF
DISP:TABL ON
Displays the table of results.
.
1
window
indicates the measurement results: Trace 1 is always used for
noise results, and trace 2 is always used for gain results.
Trace 2 is not available when using Digital Baseband Interface
(R&S FSV-B17).
Parameters:
<State> ON | OFF
*RST: ON for both traces
Example:
Usage: SCPI confirmed
Mode: NF
Manual operation: See "Y-Axis" on page 58
DISPlay[:WINDow<n>]:TRACe<t>:SYMBols <State>
This command activates or deactivates the display of the symbols to mark the measurement points for the specified trace.
DISP:TRAC OFF
Switches off the display of trace 1 (noise results).
DISP:TRAC2 OFF
Switches off the display of trace 2 (gain results).
See "Y-Axis" on page 59
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DISPlay Subsystem (Noise Figure, K30)
Suffix:
<n>
<t> 1 | 2
Parameters:
<State> ON | OFF
Example:
Mode: NF
Manual operation: See "Symbols" on page 59
DISPlay[:WINDow<n>]:TRACe<t>:X[:SCALe] <Frequency>
This command selects the frequency to be displayed on the x-axis if the DUT is not an
amplifier, i.e. in a frequency-converting measurement mode.
.
1
window
indicates the measurement results: Trace 1 is always used for
noise results, and trace 2 is always used for gain results.
*RST: OFF for both traces
DISP:TRAC ON
Switches on the display of trace 1 (noise results).
DISP:TRAC:SYMB ON
Switches on the display of symbols for trace 1 (noise results)
See "Symbols" on page 59
Suffix:
<n>
<t> 1 | 2
Parameters:
<Frequency> IF | RF
Example: CONF:MODE:DUT DOWN (see [SENSe:]CONFigure:MODE:
Mode: NF
Manual operation: See "X-Axis" on page 60
.
1
window
indicates the measurement results: Trace 1 is always used for
noise results, and trace 2 is always used for gain results.
*RST: RF
DUT)
The DUT converts the input frequency to a lower output frequency.
DISP:TRAC:X IF
The IF frequency is displayed on x-axis.
See "Frequency Axis" on page 61
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DISPlay Subsystem (Noise Figure, K30)
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:AUTO <State>
This command activates or deactivates the automatic scaling of the Y-axis for the
specified trace display. Automatic scaling provides best fit of the Y-axis to the measurement results.
This command is not available when using Digital Baseband Interface (R&S FSV-B17).
Suffix:
<n>
<t> 1 | 2
Parameters:
<State> ON | OFF
Example: DISP:TRAC2 ON (see DISPlay[:WINDow<n>]:TRACe<t>:
Usage: SCPI confirmed
Mode: NF
Manual operation: See "Automatic Scaling" on page 58
.
1
window
indicates the measurement results: Trace 1 is always used for
noise results, and trace 2 is always used for gain results.
*RST: ON for both traces
SYMBols)
Switches on the display of trace 2 (gain results).
DISP:TRAC2:Y:AUTO ON
Switches on automatic scaling of the Y-axis for trace 2.
See "Automatic Scaling" on page 59
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:BOTTom <Value>
This command sets the minimum (bottom) Y-axis display value for the specified trace
display. It has no affect if automatic scaling of the Y-axis is enabled (DISPlay[:
WINDow<n>]:TRACe<t>:Y[:SCALe]:AUTO command).
This command is not available when using Digital Baseband Interface (R&S FSV-B17).
Suffix:
<n>
<t> 1 | 2
.
1
window
indicates the measurement results: Trace 1 is always used for
noise results, and trace 2 is always used for gain results.
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DISPlay Subsystem (Noise Figure, K30)
Parameters:
<Value> noise figure: | noise temperature: | gain:
noise figure:
-75 dB to 75 dB
noise temperature:
-999990000 K to 999990000 K
gain:
-75 dB to 75 dB
*RST: 0 dB
Example:
Example:
Example:
Usage: SCPI confirmed
Mode: NF
Manual operation: See "Min Y-Axis NF/Max Y-Axis NF" on page 58
DISP:DATA:TRAC1 NFIG
Sets the noise figure to trace1.
DISP:TRAC ON (see DISPlay[:WINDow<n>]:TRACe<t>:
SYMBols)
Switches on the display of trace 1 (noise results).
DISP:TRAC:Y:BOTT -30
Sets the minimum Y-axis display to -30 dB for trace 1.
DISP:DATA:TRAC1 TEFF
Sets the noise temperature to trace1.
DISP:TRAC ON
Switches on the display of trace 1 (noise results).
DISP:TRAC:Y:BOTT 100
Sets the minimum Y-axis display to 100 K for trace 1.
DISP:TRAC2 ON
Switches on the display of trace 2 (gain results).
DISP:TRAC2:Y:BOTT 1
Sets the minimum Y-axis display to 1 dB for trace 2.
See "Min Y-Axis Temp/Max Y-Axis Temp" on page 58
See "Min Y-Axis/Max Y-Axis" on page 59
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel <Value>
This command sets the reference level for the Y-axis display value for all trace displays. This command has no affect if automatic reference level detection is enabled
(DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:AUTOcommand).
This command is not available when using Digital Baseband Interface (R&S FSV-B17).
Suffix:
<n>
<t> irrelevant
.
1
window
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DISPlay Subsystem (Noise Figure, K30)
Parameters:
<Value> *RST: -30 dBm
Example:
Usage: SCPI confirmed
Mode: NF
Manual operation: See "Ref Level" on page 53
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:AUTO <State>
This command enables or disables the automatic reference level detection.
This command is not available when using Digital Baseband Interface (R&S FSV-B17).
Suffix:
<n>
<t> irrelevant
Parameters:
<State> ON | OFF
Example:
DISP:TRAC:Y:RLEV 0
Sets the reference level 0 dBm
.
1
window
*RST: ON
DISP:TRAC:Y:RLEV:AUTO ON
Turns on automatic reference level detection.
Usage: SCPI confirmed
Mode: NF
Manual operation: See "Automatic Ref Level" on page 53
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:TOP <Value>
This command sets the maximum (top) Y-axis display value for the specified trace display. It has no affect if automatic scaling of the Y-axis is enabled or the specified trace
is not currently active.
This command is not available when using Digital Baseband Interface (R&S FSV-B17).
Suffix:
<n>
<t> 1 | 2
.
1
window
indicates the measurement results: Trace 1 is always used for
noise results, and trace 2 is always used for gain results.
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FETCh Subsystem (Noise Figure, K30)
Parameters:
<Value> noise figure: | noise temperature: | gain:
noise figure:
-75 dB to 75 dB
noise temperature:
-999990000 K to 999990000 K
gain:
-75 dB to 75 dB
*RST: 20 dB for noise and gain figure, 10000K for noise
temperature
Example:
DISP:DATA:TRAC1 NFIG
Sets the noise figure to trace1.
DISP:TRAC:Y:TOP 30
Sets the maximum Y-axis display to 30 dB for trace 1.
Example: Example 2
DISP:DATA:TRAC1 TEFF
Sets the noise temperature to trace1.
DISP:TRAC:Y:TOP 100
Sets the maximum Y-axis display to 100 K for trace 1.
Example:
DISP:TRAC2:Y:TOP 10
Sets the maximum Y-axis display to 10 dB for trace 2.
Usage: SCPI confirmed
Mode: NF
Manual operation: See "Min Y-Axis NF/Max Y-Axis NF" on page 58
See "Min Y-Axis Temp/Max Y-Axis Temp" on page 58
See "Min Y-Axis/Max Y-Axis" on page 59
8.5 FETCh Subsystem (Noise Figure, K30)
The FETCh subsystem retrieves results for the most recently completed fixed frequency or frequency list measurements. Frequency list results are returned as a list of
results where the result is that requested in the specific fetch command. Single frequency results are single numbers in the described units.
Note:
Corrected measurements are only accessible after a calibration has been performed.
FETCh:ARRay:MEMory<1…3>:NOISe:FIGure?..................................................................97
FETCh:ARRay:MEMory<1…3>:NOISe:GAIN?....................................................................97
FETCh:ARRay:MEMory<1…3>:NOISe:TEMPerature?.........................................................97
FETCh:ARRay:NOISE:FIGure?......................................................................................... 97
FETCh:ARRay:NOISE:GAIN?........................................................................................... 97
FETCh:ARRay:NOISE:TEMPerature?................................................................................97
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FETCh Subsystem (Noise Figure, K30)
FETCh:SCALar:NOISE:FIGure?........................................................................................98
FETCh:SCALar:NOISE:GAIN?.......................................................................................... 98
FETCh:SCALar:NOISE:TEMPerature?...............................................................................98
FETCh:ARRay:MEMory<1…3>:NOISe:FIGure?
FETCh:ARRay:MEMory<1…3>:NOISe:GAIN?
FETCh:ARRay:MEMory<1…3>:NOISe:TEMPerature?
This command queries the noise measurement results of the selected memory. The
results are returned as an array of up to 171 elements of noise figure, gain or temperature results. This command produces an error if no data is held in the selected trace
memory.
Example:
INIT
Starts a new measurement, if no measurement sequence is
already in progress.
CONF:ARR:MEM2 ONCE (see CONFigure:ARRay:
MEMory<1…3> ONCE on page 86)
Copies the last recorded measurement result into the memory 2.
FETC:ARR:MEM2:NOIS:TEMP?
Returns an array of 171 noise temperature results from the
selected memory 2.
Usage: Query only
Mode: NF
FETCh:ARRay:NOISE:FIGure?
FETCh:ARRay:NOISE:GAIN?
FETCh:ARRay:NOISE:TEMPerature?
This command queries the last recorded noise figure, gain or temperature measurement results. The results are returned as an array of up to 171 elements of noise
results.
Example:
FETCh:ARRay:NOISE:TEMPerature?
Returns an array of up to 171 measured elements associated
with the last noise temperature measurement.
Usage: Query only
Mode: NF
Manual operation: See "Data->Mem1/ Data->Mem2/ Data->Mem3" on page 64
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FORMat Subsystem
FETCh:SCALar:NOISE:FIGure?
FETCh:SCALar:NOISE:GAIN?
FETCh:SCALar:NOISE:TEMPerature?
This command queries the last recorded noise figure, gain or temperature measurement result for a fixed frequency measurement. Requires a frequency list measurement to have been performed previously (see CONFigure:LIST:SINGle/
CONFigure:LIST:CONTinuous on page 88 or CONFigure:FREQ:SINGle/
CONFigure:FREQ:CONTinuous on page 87).
Example:
CONF:LIST:SING
Configures to run a frequency list measurement in single sweep
mode.
INIT
Performs the frequency list measurement.
CONF:SING
Configures to run fixed frequency measurements.
FREQ 10MHz
Sets a fixed frequency of 10 MHz.
FETCh:SCAL:NOISE:TEMPerature?
Returns the last noise temperature measurement at 10 MHz.
Usage: Query only
Mode: NF
8.6 FORMat Subsystem
FORMat:DEXPort:DSEParator <Separator>
This command defines which decimal separator (decimal point or comma) is to be
used for outputting measurement data to the file in ASCII format. Different languages
of evaluation programs (e.g. MS-Excel) can thus be supported.
Parameters:
<Separator> POINt | COMMA
*RST: (factory setting is POINt; *RST does not affect set-
ting)
Example:
FORM:DEXP:DSEP POIN
Sets the decimal point as separator.
Manual operation: See "ASCII File Export" on page 64
See "Decim Sep" on page 64
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INPut Subsystem
8.7 INPut Subsystem
INPut:ATTenuation <Value>
This command programs the input attenuator. To protect the input mixer against damage from overloads, the setting 0 dB can be obtained by entering numerals, not by
using the DOWN command.
In the default state with "Spectrum" mode, the attenuation set on the step attenuator is
coupled to the reference level of the instrument. If the attenuation is programmed
directly, the coupling to the reference level is switched off.
This function is not available if the R&S Digital I/Q Interface (R&S FSV-B17) is active.
Parameters:
<Value> *RST: 10 dB (AUTO is set to ON)
Example:
INP:ATT 30dB
Sets the attenuation on the attenuator to 30 dB and switches off
the coupling to the reference level.
Mode: all
Manual operation: See "RF Attenuation" on page 52
INPut:COUPling <CouplingType>
Toggles the RF input of the R&S FSVA/FSV between AC and DC coupling.
This function is not available if the R&S Digital I/Q Interface (R&S FSV-B17) is active.
Parameters:
<CouplingType> AC | DC
*RST: AC
Example:
INP:COUP DC
Manual operation: See "Input (AC/DC)" on page 68
INPut:DIQ:RANGe[:UPPer] <Level>
Defines or queries the "Full Scale Level", i.e. the level that should correspond to an I/Q
sample with the magnitude "1".
It can be defined either in dBm or Volt (see "Full Scale Level" on page 54).
This command is only available if the optional R&S Digital I/Q Interface (option
R&S FSV-B17) is installed.
For details see the R&S Digital I/Q Interface (R&S FSV-B17) description of the base
unit.
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INPut Subsystem
Parameters:
<Level> <numeric value>
Range: 70.711 nV to 7.071 V
*RST: 1 V
Example:
Mode: A, IQ, NF, TDS, VSA, CDMA, EVDO, WCDMA, ADEMOD,
Manual operation: See "Full Scale Level" on page 54
INPut:DIQ:SRATe <SampleRate>
This command specifies or queries the sample rate of the input signal from the R&S
Digital I/Q Interface (see "Input Sample Rate" on page 54).
This command is only available if the optional R&S Digital I/Q Interface (option
R&S FSV-B17) is installed.
For details see the R&S Digital I/Q Interface (R&S FSV-B17) description of the base
unit.
Parameters:
<SampleRate> Range: 1 Hz to 10 GHz
Example: INP:DIQ:SRAT 200 MHz
Mode: A, IQ, NF, TDS, VSA, CDMA, EVDO, WCDMA, ADEMOD,
INP:DIQ:RANG 1V
GSM, OFDM, OFDMA/WiBro, WLAN
*RST: 32 MHz
GSM, OFDM, OFDMA/WiBro, WLAN
Manual operation: See "Input Sample Rate" on page 54
INPut:GAIN:STATe <State>
This command turns the preamplifier on and off. (For the exact amplification value, see
the data sheet).
With option R&S FSV-B22, the preamplifier only has an effect below 7 GHz.
With option R&S FSV-B24, the amplifier applies to the entire frequency range.
This command is not available when using R&S Digital I/Q Interface (R&S FSV-B17).
Parameters:
<State> ON | OFF
*RST: OFF
Example:
Manual operation: See "Preamp On/Off" on page 53
INP:GAIN:STAT ON
Turns the preamplifier on.
100Operating Manual 1176.7562.02 ─ 04
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