R&S® FSV-K82/-K83
Firmware Option CDMA2000 BTS
Analysis and MS Measurements
Operating Manual
(;ÚÚJ2)
1176.7626.02 ─ 04.1
Operating Manual
Test & Measurement
This manual describes the following options:
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R&S FSV-K82 (1310.8703.02)
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R&S FSV-K83 (1310.8755.02)
The contents of this manual correspond to the following R&S®FSVR models with firmware version 2.23 or
higher:
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R&S®FSVR7 (1311.0006K7)
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R&S®FSVR13 (1311.0006K13)
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R&S®FSVR30 (1311.0006K30)
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R&S®FSVR40 (1311.0006K40)
The software contained in this product makes use of several valuable open source software packages. For information, see the
"Open Source Acknowledgement" on the user documentation CD-ROM (included in delivery).
Rohde & Schwarz would like to thank the open source community for their valuable contribution to embedded computing.
© 2015 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 the owners.
The following abbreviations are used throughout this manual: R&S®FSV is abbreviated as R&S FSV. R&S®FSVR is abbreviated as
R&S FSVR.
R&S® FSV-K82/-K83
Contents
1 Preface.................................................................................................... 5
1.1 Documentation Overview............................................................................................. 5
1.2 Conventions Used in the Documentation...................................................................7
1.3 How to Use the Help System........................................................................................8
2 Introduction.......................................................................................... 10
3 Test Setup for Base Station or Mobile Station Tests........................11
4 Measurement Examples for the CDMA2000 BTS Analysis (option
K82)....................................................................................................... 13
4.1 Test Setup for Base Station Tests.............................................................................13
4.2 Measuring the Signal Channel Power....................................................................... 15
Contents
4.3 Measuring the Spectrum Emission Mask................................................................. 15
4.4 Measuring the Relative Code Domain Power and Frequency Error.......................17
4.5 Measuring the Triggered Relative Code Domain Power......................................... 19
4.6 Measuring the Composite EVM................................................................................. 20
4.7 Measuring the Peak Code Domain Error and the RHO Factor................................22
5 Measurement Examples for the CDMA2000 MS Analysis (option
K83)....................................................................................................... 24
5.1 Test Setup for Base Station or Mobile Station Tests...............................................24
5.2 Measuring the Signal Channel Power....................................................................... 26
5.3 Measuring the Spectrum Emission Mask................................................................. 27
5.4 Measuring the Relative Code Domain Power and Frequency Error.......................28
5.5 Measuring the Triggered Relative Code Domain Power......................................... 30
5.6 Measuring the Composite EVM................................................................................. 31
5.7 Measuring the Peak Code Domain Error and the RHO Factor................................33
6 Instrument Functions of the CDMA2000 Analysis............................ 35
6.1 Measurements and Result Displays..........................................................................35
6.2 Menu and Softkey Description for CDA Measurements..........................................57
6.3 Softkeys and Menus for RF Measurements (K82)....................................................97
6.4 Further Information...................................................................................................151
7 Remote Commands of the CDMA2000 BTS Analysis.....................182
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7.1 Notation......................................................................................................................183
7.2 CALCulate Subsystem..............................................................................................185
7.3 CONFigure Subsystem............................................................................................. 234
7.4 DISPlay Subsystem...................................................................................................245
7.5 INSTrument Subsystem............................................................................................252
7.6 SENSe Subsystem.................................................................................................... 253
7.7 STATus subsystem...................................................................................................301
7.8 TRACe Subsystem.................................................................................................... 302
7.9 Other Commands Referenced in this Manual........................................................ 310
8 Status Reporting System of the CDMA2000 BTS Analysis (option
K82)..................................................................................................... 327
9 Glossary..............................................................................................328
Contents
10 Appendix.............................................................................................329
List of Commands..............................................................................332
Index....................................................................................................338
4Operating Manual 1176.7626.02 ─ 04.1
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1 Preface
Preface
Documentation Overview
1.1 Documentation Overview
The user documentation for the R&S FSVR is divided as follows:
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Quick Start Guide
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Operating Manuals for base unit and options
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Service Manual
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Online Help
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Release Notes
Quick Start Guide
This manual is delivered with the instrument in printed form and in PDF format on the
CD. It provides the information needed to set up and start working with the instrument.
Basic operations and basic measurements are described. Also a brief introduction to
remote control is given. The manual includes general information (e.g. Safety Instructions) and the following chapters:
Chapter 1 Introduction, General information
Chapter 2 Front and Rear Panel
Chapter 3 Preparing for Use
Chapter 4 Firmware Update and Installation of Firmware Options
Chapter 5 Basic Operations
Chapter 6 Basic Measurement Examples
Chapter 7 Brief Introduction to Remote Control
Appendix Printer Interface
Appendix LAN Interface
Operating Manuals
The Operating Manuals are a supplement to the Quick Start Guide. Operating Manuals
are provided for the base unit and each additional (software) option.
The Operating Manual for the base unit provides basic information on operating the
R&S FSVR in general, and the "Spectrum" mode in particular. Furthermore, the software options that enhance the basic functionality for various measurement modes are
described here. The set of measurement examples in the Quick Start Guide is expanded by more advanced measurement examples. In addition to the brief introduction to
remote control in the Quick Start Guide, a description of the basic analyzer commands
and programming examples is given. Information on maintenance, instrument interfaces and error messages is also provided.
5Operating Manual 1176.7626.02 ─ 04.1
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In the individual option manuals, the specific instrument functions of the option are
described in detail. For additional information on default settings and parameters, refer
to the data sheets. Basic information on operating the R&S FSVR is not included in the
option manuals.
The following Operating Manuals are available for the R&S FSVR:
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Preface
Documentation Overview
R&S FSVR base unit; in addition:
– R&S FSV-K7S Stereo FM Measurements
– R&S FSV-K9 Power Sensor Support
– R&S FSV-K14 Spectrogram Measurement
R&S FSV-K10 GSM/EDGE Measurement
R&S FSV-K30 Noise Figure Measurement
R&S FSV-K40 Phase Noise Measurement
R&S FSV-K70 Vector Signal Analysis Operating Manual
R&S FSV-K70 Vector Signal Analysis Getting Started (First measurements)
R&S FSV-K72 3GPP FDD BTS Analysis
R&S FSV-K73 3GPP FDD UE Analysis
R&S FSV-K76/77 3GPP TD-SCDMA BTS/UE Measurement
R&S FSV-K82/83 CDMA2000 BTS/MS Analysis
R&S FSV-K84/85 1xEV-DO BTS/MS Analysis
R&S FSV-K91 WLAN IEEE 802.11
R&S FSV-K93 WiMAX IEEE 802.16 OFDM/OFDMA Analysis
R&S FSV-K100/K104 EUTRA / LTE Downlink Measurement Application
R&S FSV-K101/K105 EUTRA / LTE Uplink Measurement Application
These manuals are available in PDF format on the CD delivered with the instrument.
Service Manual
This manual is available in PDF format on the CD delivered with the instrument. It
describes how to check compliance with rated specifications, instrument function,
repair, troubleshooting and fault elimination. It contains all information required for
repairing the R&S FSVR by replacing modules. The manual includes the following
chapters:
Chapter 1 Performance Test
Chapter 2 Adjustment
Chapter 3 Repair
Chapter 4 Software Update / Installing Options
Chapter 5 Documents
Online Help
The online help contains context-specific help on operating the R&S FSVR and all
available options. It describes both manual and remote operation. The online help is
6Operating Manual 1176.7626.02 ─ 04.1
R&S® FSV-K82/-K83
installed on the R&S FSVR by default, and is also available as an executable .chm file
on the CD delivered with the instrument.
Release Notes
The release notes describe the installation of the firmware, new and modified functions, eliminated problems, and last minute changes to the documentation. The corresponding firmware version is indicated on the title page of the release notes. The current release notes are provided in the Internet.
Preface
Conventions Used in the Documentation
1.2 Conventions Used in the Documentation
1.2.1 Typographical Conventions
The following text markers are used throughout this documentation:
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-
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.
1.2.2 Conventions for Procedure Descriptions
When describing how to operate the instrument, several alternative methods may be
available to perform the same task. In this case, the procedure using the touchscreen
is described. 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.
7Operating Manual 1176.7626.02 ─ 04.1
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Preface
How to Use the Help System
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 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.
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:
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"Contents" - contains a table of help contents
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"View" - contains a specific help topic
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"Index" - contains index entries to search for help topics
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"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
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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.
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To display a help topic, press the ENTER key. The "View" tab with the corresponding help topic is displayed.
8Operating Manual 1176.7626.02 ─ 04.1
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Navigating in the help topics
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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
3. Change the focus by pressing the ENTER key.
4. Select the suitable keyword by using the UP ARROW or DOWN ARROW keys or
Preface
How to Use the Help System
To change to the next tab, press the tab on the touchscreen.
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.
these characters are displayed.
the rotary knob.
5. Press the ENTER key to display the help topic.
The "View" tab with the corresponding help topic is displayed.
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.
9Operating Manual 1176.7626.02 ─ 04.1
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2 Introduction
Overview of Firmware Options R&S FSV-K82 and K83
This section contains all information required for operation of an R&S FSVR equipped
with Application Firmware R&S FSV-K82 or K83. It covers operation via menus and the
remote control commands for the CDMA2000 base station (BTS) or mobile station
(MS) analyzer.
This part of the documentation consists of the following chapters:
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Introduction
chapter 3, "Test Setup for Base Station or Mobile Station Tests", on page 11
Describes the measurement setup for base station or mobile station tests.
chapter 4, "Measurement Examples for the CDMA2000 BTS Analysis (option
K82)", on page 13
Explains some basic 1xEV-DO base station tests.
chapter 5, "Measurement Examples for the CDMA2000 MS Analysis (option K83)",
on page 24
Explains some basic 1xEV-DO mobile station tests.
chapter 6, "Instrument Functions of the CDMA2000 Analysis", on page 35
Describes the instrument functions of CDMA2000 Analysis.
chapter 7, "Remote Commands of the CDMA2000 BTS Analysis", on page 182
Describes all remote control commands defined for the code domain measurement. An alphabetic list of all remote control commands and a table of softkeys
with the assignment of commands are provided at the end of this chapter.
chapter 8, "Status Reporting System of the CDMA2000 BTS Analysis (option
K82)", on page 327
Contains device-specific error messages for R&S FSV-K82.
chapter 9, "Glossary", on page 328
Contains an explanation of terms and abbreviations related to the code domain
analysis.
chapter 10, "Appendix", on page 329
This part of the documentation includes only functions of the Application Firmware
R&S FSV-K82 and K83. For all other descriptions, please refer to the description of the
base unit.
10Operating Manual 1176.7626.02 ─ 04.1
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3 Test Setup for Base Station or Mobile Sta-
tion Tests
This section describes the default settings of the R&S FSVR, if it is used as a
CDMA2000 base or mobile station tester. Before starting the measurements, the
R&S FSVR has to be configured correctly and supplied with power as described in the
Quick Start Guide, "Preparing For Use". Furthermore, the application firmware of the
R&S FSV-K82 (base station) or -K83 (mobile station) must be enabled. Installation and
enabling of the application firmware are described in the Quick Start Guide.
Risk of instrument damage during operation
An unsuitable operating site or test setup can cause damage to the instrument and to
connected devices. Ensure the following operating conditions before you switch on the
instrument:
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Test Setup for Base Station or Mobile Station Tests
All fan openings are unobstructed and the airflow perforations are unimpeded. The
minimum distance from the wall is 10 cm.
The instrument is dry and shows no sign of condensation.
The instrument is positioned as described in the following sections.
The ambient temperature does not exceed the range specified in the data sheet.
Signal levels at the input connectors are all within the specified ranges.
Signal outputs are correctly connected and are not overloaded.
Connect the antenna output (or TX output) of the base station/mobile station to the RF
input of the R&S FSVR. Use a power attenuator exhibiting suitable attenuation.
TX signal
3
2
GHI1ABC
DEF
5 64
7
8
9
STU
ÜVW
XYZ
.-0
S CRCL M
RF
INPUT
The following values for external attenuation are recommended to ensure that the RF
input of the analyzer is protected and the sensitivity of the unit is not reduced too
much:
11Operating Manual 1176.7626.02 ─ 04.1
R&S® FSV-K82/-K83
Maximum Power Recommended external attenuation
≥ 55 to 60 dBm 35 to 40 dB
≥ 50 to 55 dBm 30 to 35 dB
≥ 45 to 50 dBm 25 to 30 dB
≥ 40 to 45 dBm 20 to 25 dB
≥ 35 to 40 dBm 15 to 20 dB
≥ 30 to 35 dBm 10 to 15 dB
≥ 25 to 30 dBm 0 to 10 dB
≥ 20 to 25 dBm 0 to 5 dB
≤ 20 dBm 0 dB
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Test Setup for Base Station or Mobile Station Tests
For signal measurements at the output of two-port networks, connect the reference
frequency of the signal source to the rear reference input of the analyzer.
The R&S FSVR must be operated with an external frequency reference to ensure
that the error limits of the CDMA2000 specification for frequency measurements on
base stations/mobile stations are met. A rubidium frequency standard can be used
as a reference source for example.
If the base station/mobile station has a trigger output, connect the trigger output of
the base station/mobile station to the rear trigger input of the analyzer (EXT TRIG
GATE).
Presettings
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Enter the external attenuation.
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Enter the reference level.
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Enter the center frequency.
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Set the trigger.
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If used, enable the external reference.
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Select the standard and the desired measurement.
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Set the PN offset.
12Operating Manual 1176.7626.02 ─ 04.1
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4 Measurement Examples for the CDMA2000
BTS Analysis (option K82)
This section explains basic CDMA2000 base station tests by means of a setup with a
signal generator, e.g. an R&S SMU. It describes how operating and measurement
errors can be avoided using correct settings. The measurements are performed with
an R&S FSVR equipped with the CDMA2000 BTS Analysis option (K82).
The following measurements are described:
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Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Test Setup for Base Station Tests
chapter 4.2, "Measuring the Signal Channel Power", on page 15
chapter 4.3, "Measuring the Spectrum Emission Mask", on page 15
chapter 4.4, "Measuring the Relative Code Domain Power and Frequency Error",
on page 17
chapter 4.5, "Measuring the Triggered Relative Code Domain Power",
on page 19
chapter 4.6, "Measuring the Composite EVM", on page 20
chapter 4.7, "Measuring the Peak Code Domain Error and the RHO Factor",
on page 22
As the CDMA2000 BTS Analysis option also supports the CDMA2000 Standard, the
examples are performed on an CDMA2000 signal.
General Test Setup
The measurements are performed with the following units and accessories:
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An R&S FSVR equipped with the CDMA2000 BTS Analysis option.
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R&S SMU signal generator equipped with option SMU-B9/B10/B11 baseband generator and SMUK46 CDMA2000 incl. 1xEVDV.
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1 coaxial cable, 50 Ω, approximately 1 m, N connector
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2 coaxial cables, 50 Ω, approximately 1 m, BNC connector
4.1 Test Setup for Base Station Tests
This section describes the default settings of the R&S FSVR, if it is used as a
CDMA2000 base station tester. Before starting the measurements, the R&S FSVR has
to be configured correctly and supplied with power as described in the Quick Start
Guide, "Preparing For Use". Furthermore, the application firmware of the R&S FSVK82 must be enabled. Installation and enabling of the application firmware are described in the Quick Start Guide, chapter 3.
13Operating Manual 1176.7626.02 ─ 04.1
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Risk of damage to the instrument
Before taking the instrument into operation, make sure that
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Failure to comply may result in damage to the instrument
Connect the antenna output (or TX output) of the base station to the RF input of the
R&S FSVR. Use a power attenuator exhibiting suitable attenuation.
The following values for external attenuation are recommended to ensure that the RF
input of the analyzer is protected and the sensitivity of the unit is not reduced too
much:
Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Test Setup for Base Station Tests
the housing covers are in place and their screws have been tightened,
the ventilation slits are free,
no signal voltage levels above the permissible limits are applied to the inputs,
the outputs of the unit are not overloaded or wrongly connected.
Maximum Power Recommended external attenuation
≥ 55 to 60 dBm 35 to 40 dB
≥ 50 to 55 dBm 30 to 35 dB
≥ 45 to 50 dBm 25 to 30 dB
≥ 40 to 45 dBm 20 to 25 dB
≥ 35 to 40 dBm 15 to 20 dB
≥ 30 to 35 dBm 10 to 15 dB
≥ 25 to 30 dBm 0 to 10 dB
≥ 20 to 25 dBm 0 to 5 dB
20 dBm 0 dB
●
For signal measurements at the output of two-port networks, connect the reference
frequency of the signal source to the rear reference input of the analyzer.
●
The R&S FSVR must be operated with an external frequency reference to ensure
that the error limits of the CDMA2000 specification for frequency measurements on
base stations are met. A rubidium frequency standard can be used as a reference
source for example.
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If the base station has a trigger output, connect the trigger output of the base station to the rear trigger input of the analyzer (EXT TRIG GATE).
Presettings
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Enter the external attenuation.
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Enter the reference level.
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Enter the center frequency.
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Set the trigger.
14Operating Manual 1176.7626.02 ─ 04.1
R&S® FSV-K82/-K83
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Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Measuring the Signal Channel Power
If used, enable the external reference.
Select the standard and the desired measurement.
Set the PN offset.
4.2 Measuring the Signal Channel Power
In the Power measurement, the total channel power of the CDMA2000 signal is displayed. The measurement also displays spurious emissions like harmonics or intermodulation products that occur close to the carrier.
Test setup:
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Connect the RF output of the signal generator to the RF input of the R&S FSVR
(coaxial cable with N connectors).
Signal generator settings:
Frequency: 878.49 MHz
Level: 0 dBm
Standard: CDMA2000
Procedure:
1. Set the R&S FSVR to its default state.
a) Press the PRESET key.
2. Press the MODE key and activate the CDMA2000 BTS Analysis option.
3. Start the Power measurement
a) Press the MEAS key.
b) Press the "Power" softkey.
4. Set the center frequency to 878.49 MHz.
5. Set the reference level.
a) Press the AMPT key and enter 0 dBm.
On the screen, the spectrum of the signal and the corresponding power levels within
the 1.2288 MHz channel bandwidth are displayed. In the table below the diagram, the
numeric values of the channel bandwidth of the TX Channel and power level of the
analyzed signal are listed.
4.3 Measuring the Spectrum Emission Mask
To detect spurious emissions such as harmonics or intermodulation products, the
R&S FSVR offers a spectrum emission mask measurement. The measurement com-
15Operating Manual 1176.7626.02 ─ 04.1
R&S® FSV-K82/-K83
pares the power against the spectrum emission mask in the range from -4 MHz to 4
MHz around the carrier. The exact measurement settings like the filter that is used
depend on the Band Class parameter. For a list of supported bandclasses refer to the
Bandclass softkey in the "Spectrum Emission Mask" menu.
Test setup:
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Signal generator settings:
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Procedure:
Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Measuring the Spectrum Emission Mask
Connect the RF output of the signal generator to the RF input of the R&S FSVR
(coaxial cable with N connectors).
Frequency: 878.49 MHz
Level: 0 dBm
Standard: CDMA2000
Link direction: Downlink
1. Set the R&S FSVR to its default state.
a) Press the PRESET key.
2. Activate the CDMA2000 BTS Analysis mode.
a) Press the MODE key and activate the CDMA2000 BTS Analysis option.
3. Start the measurement.
a) Press the MEAS key.
b) Press the "Spectrum Emission Mask" softkey.
4. Set the center frequency.
a) Press the FREQ key and enter 878.49 MHz.
5. Set the reference level.
a) Press the AMPT key and enter 0 dBm.
6. Select a bandclass
a) Press the "Bandclass" softkey and select "BandClass 0: 800 MHz Cellular
Band" from the list.
On the screen, the spectrum of the signal is displayed, including the limit line defined in
the standard. To understand where and about how much the measurement has failed,
the "List Evaluation" table shows the frequencies where spurious emissions occur.
16Operating Manual 1176.7626.02 ─ 04.1
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Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Measuring the Relative Code Domain Power and Frequency Error
4.4 Measuring the Relative Code Domain Power and Frequency Error
A Code Domain Power measurement analyses the signal over a single Power Control
Group (PCG). It also determines the power of all codes and channels.
The following examples show a Code Domain Power measurement on a test model
with 9 channels. In this measurement, changing some parameters one after the other
should demonstrate the resulting effects: values adapted to the measurement signal
are changed to non-adapted values.
In the following examples, adjusting the settings of the code domain measurements is
described using the dialog boxes. Alternatively, most of the settings can also be modified by using the corresponding hardkeys as in the base unit (e.g. the center frequency
can be either set in the "Frontend Settings" dialog box, or via the FREQ key).
Test setup:
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Connect the RF output of the signal generator to the RF input of the R&S FSVR.
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Connect the reference input (EXT REF) on the rear panel of the R&S FSVR to the
reference output (REF) of the signal generator (coaxial cable with BNC connectors).
Signal generator settings:
Frequency: 878.49 MHz
Level: 0 dBm
Standard: CDMA2000
Procedure:
1. Set the R&S FSVR to its default state.
a) Press the PRESET key.
2. Activate the "CDMA2000 BS Analysis" Mode.
a) Press the MODE key and select "CDMA2000 BS Analysis".
3. Enter the Code Domain Analyzer.
a) Press the MEAS key
b) Press the "Code Domain Analyzer" softkey.
4. Start the measurement
a) In the "Code Domain Analyzer" menu, press the "Display Config" softkey.
b) Select the "Code Domain Power" measurement.
5. Set the center frequency and the reference level.
a) In the "Code Domain Analyzer" menu, press the "Frontend Settings" softkey.
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In the two screens, the following results are displayed: screen A shows the power of
the code domain of the signal. The x-axis represents the individual channels (or
codes), while the y-axis shows the power of each channel.
In screen B the result summary is displayed. It shows the numeric results of the code
domain power measurement, including the frequency error.
By default, the R&S FSV-K82 displays two measurement screens. After a preset
screen A is always the Code Domain Power result display. Screen B is always the
Result Summary display.
For more information on the display concept refer to the Display Config softkey.
Synchronization of the reference frequencies
Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Measuring the Relative Code Domain Power and Frequency Error
b) In the "Center Frequency" field enter 878.49 MHz.
c) In the "Ref Level" field enter 10 dBm.
d) Close the "Frontend Settings" dialog box.
The frequency error can be reduced by synchronizing the transmitter and the receiver
to the same reference frequency.
●
Press the SETUP key.
– Press the "Reference Int/Ext" softkey to switch to an external reference.
Screen A again shows the Code Domain Power measurement and screen B the result
summary. After the synchronization of the reference frequencies of the devices, the
frequency error should now be smaller than 10 Hz.
Behavior with deviating center frequency setting
A measurement can only be valid if the center frequency of the DUT and the analyzer
are balanced.
1. On the signal generator, change the center frequency in steps of 0.1 kHz and
observe the analyzer screen.
Up to a frequency error of approximately 1.0 kHz, a Code Domain Power measurement on the R&S FSVR is still possible. A frequency error within this range causes
no apparent difference in the accuracy of the Code Domain Power measurement.
In case of a frequency error of more than 1.0 kHz, the probability of incorrect synchronization increases. This is indicated by the "SYNC FAILED" error message.
If the frequency error exceeds approximately 1.5 kHz, a Code Domain Power measurement cannot be performed. This is also indicated by the "SYNC FAILED" error
message.
2. Reset the center frequency of the signal generator to 878.49 MHz.
The center frequency of the DUT should not deviate by more than 1.0 kHz from that of
the R&S FSVR.
18Operating Manual 1176.7626.02 ─ 04.1
R&S® FSV-K82/-K83
Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Measuring the Triggered Relative Code Domain Power
4.5 Measuring the Triggered Relative Code Domain Power
If the code domain power measurement is performed without external triggering, a section of the test signal is recorded at an arbitrary point of time and the firmware attempts
to detect the start of a PCG. To detect this start, all possibilities of the PN sequence
location have to be tested in Free Run trigger mode. This requires computing time.
This computing time can be reduced by using an external (frame) trigger and entering
the correct PN offset. If the search range for the start of the power control group and
the PN offset are known then fewer possibilities have to be tested. This increases the
measurement speed.
Test setup:
●
Connect the RF output of the signal generator to the input of the R&S FSVR.
●
Connect the reference input (EXT REF) on the rear panel of the R&S FSVR to the
reference input of the signal generator (coaxial cable with BNC connectors).
●
Connect the external trigger input on the rear panel of the R&S FSVR (EXT TRIGGER/GATE IN) to the external trigger output of the signal generator.
Signal generator settings:
●
Frequency: 878.49 MHz
●
Level: 0 dBm
●
Standard: CDMA2000
●
Link direction: Downlink
Procedure:
1. Set the R&S FSVR to its default state.
a) Press the PRESET key.
2. Activate the CDMA2000 BTS Analysis Mode.
a) Press the MODE key and select CDMA2000 BS Analysis.
3. Enter the Code Domain Analyzer.
a) Press the MEAS key
b) Press the "Code Domain Analyzer" softkey.
4. Start the measurement.
a) In the "Code Domain Analyzer" menu, press the "Display Config" softkey.
b) Select the tab for Screen A.
c) Select the "Code Domain Power" measurement.
5. Set the center frequency and the reference level.
a) In the "Code Domain Analyzer" menu, press the "Frontend Settings" softkey.
b) In the "Center Frequency" field enter 878.49 MHz.
c) In the "Ref Level" field enter 10 dBm.
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In the two screens, the following results are displayed: by default, screen A shows the
code domain power of the signal. Compared to the measurement without an external
trigger (see previous example), the repetition rate of the measurement increases. In
screen B the result summary is displayed. In the row Trigger to Frame, the offset
between the trigger event and and the start of the PCG is shown.
Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Measuring the Composite EVM
d) Close the "Frontend Settings" dialog box.
4.5.1 Adjusting the Trigger Offset
The delay between the trigger event and the start of the PCG can be compensated for
by adjusting the trigger offset.
Set an external trigger source and the trigger offset.
1. Open the "IQ Capture" dialog box.
2. Set the "Trigger Source" option to "External".
3. Set the "Trigger Offset" to 100µs to compensate analog delays of the trigger event.
In the two screens, the following results are displayed: Screen A shows the the same
as above. In screen B the result summary is displayed. In the "Trg to Frame" result, the
offset between the trigger event and the start of the PCG has been adjusted.
4.5.2 Behaviour With the Wrong PN Offset
The last adjustment is setting the PN (Pseudo Noise) offset correctly. The measurement is only valid if the PN offset on the analyzer is the same as that of the transmit
signal.
●
Set a PN Offset.
– Open the "Demodulation Settings" dialog box.
– In the "PN Offset" field enter 200.
Again, screen A shows the CDP measurement, screen B the result summary. In the
result summary, the "Trigger to Frame" result is not correct. Also, the error message
"SYNC FAILED" indicates that the synchronization has failed.
► In the "PN Offset" field enter 0:
After adjusting it, the PN offset on the R&S FSVR is the same as that of the signal. In
the result summary the "Trg To Frame" value is now shown correctly.
4.6 Measuring the Composite EVM
The Error Vector Magnitude (EVM) describes the quality of the measured signal compared to an ideal reference signal generated by the R&S FSVR. In the I-Q plane, the
20Operating Manual 1176.7626.02 ─ 04.1
R&S® FSV-K82/-K83
error vector represents the ratio of the measured signal to the ideal signal on symbol
level. The error vector is equal to the square root of the ratio of the measured signal to
the reference signal. The result is given in %.
In the Composite EVM measurement the error is averaged over all channels (by
means of the root mean square) for a given PCG. The measurement covers the entire
signal during the entire observation time. On screen the results are shown in a diagram, in which the x-axis represents the examined PCGs and the y-axis shows the
EVM values.
Test Setup:
●
●
●
Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Measuring the Composite EVM
Connect the RF output of the signal generator to the RF input of the R&S FSVR.
(coaxial cables with N connectors).
Connect the reference input (EXT REF IN/OUT) on the rear panel of the
R&S FSVR.L to the reference output (REF) on the signal generator (coaxial cable
with BNC connectors).
Connect external triggering of the analyzer (EXT TRIG GATE) to the signal generator’s trigger (TRIGOUT1 at PAR DATA).
Signal generator settings:
●
Frequency: 878.49 MHz
●
Level: 0 dBm
●
Standard: CDMA2000
●
Link direction: Downlink
Procedure:
1. Set the R&S FSVR to its default state.
a) Press the PRESET key.
2. Activate the CDMA2000 BTS Analysis Mode.
a) Press the MODE key and select CDMA2000 BTS Analysis.
3. Enter the Code Domain Analyzer.
a) Press the MEAS key
b) Press the "Code Domain Analyzer" softkey.
4. Start the measurement.
a) Press the "Display Config" softkey.
b) Select the tab for Screen A.
c) Select the "Composite EVM" measurement.
5. Set the center frequency and the reference level.
a) Open the "Frontend Settings" dialog box.
b) In the "Center Frequency" field enter 878.49 MHz.
c) In the "Ref Level" field enter 10 dBm.
d) Close the "Frontend Settings" dialog box.
21Operating Manual 1176.7626.02 ─ 04.1
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6. Set an external trigger source.
In the two screens, the following results are displayed: by default, Screen A shows the
diagram of the Composite EVM measurement result. In screen B the result summary is
displayed. It shows the numeric results of the Code Domain Power measurement,
including the values for the Composite EVM.
Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Measuring the Peak Code Domain Error and the RHO Factor
a) Open the "IQ Capture Settings" dialog box.
b) Set the "Trigger Source" option to "External".
4.7 Measuring the Peak Code Domain Error and the RHO Factor
The Code Domain Error Power describes the quality of the measured signal compared
to an ideal reference signal generated by the R&S FSVR. In the I-Q plane, the error
vector represents the difference of the measured signal and the ideal signal. The Code
Domain Error is the difference in power on symbol level of the measured and the reference signal projected to the class of of the base spreading factor. The unit of the result
is dB.
In the Peak Code Domain Error (PCDE) measurement, the maximum error value over
all channels is determined and displayed for a given PCG. The measurement covers
the entire signal during the entire observation time. On screen the results are shown in
a diagram, in which the x-axis represents the PCGs and the y-axis shows the PCDE
values.
A measurement of the RHO factor is shown in the second part of the example. RHO is
the normalized, correlated power between the measured and the ideal reference signal. The maximum value of RHO is 1. In that case the measured signal and the reference signal are identical. When measuring RHO, it is required that only the pilot channel is active.
Test setup:
●
Connect the RF output of the signal generator to the RF input of the R&S FSVR
(coaxial cable with N connectors).
●
Connect the reference input (EXT REF IN/OUT) on the rear panel of the
R&S FSVR to the reference output (REF) on the signal generator (coaxial cable
with BNC connectors).
●
Connect external triggering of the R&S FSVR (EXT TRIG GATE) to the signal generator trigger (TRIGOUT1 at PAR DATA).
Signal generator settings:
●
Frequency: 878.49 MHz
●
Level: 0 dBm
●
Standard: CDMA2000
●
Link direction: Downlink
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Procedure:
1. Set the R&S FSVR to its default state.
2. Activate the CDMA2000 BTS Analysis Mode.
3. Enter the Code Domain Analyzer.
4. Start the Peak Code Domain Error measurement.
5. Set the center frequency and the reference level.
Measurement Examples for the CDMA2000 BTS Analysis (option K82)
Measuring the Peak Code Domain Error and the RHO Factor
a) Press the PRESET key.
a) Press the MODE key and activate the CDMA2000 BTS Analysis option.
a) Press the MEAS key.
b) Press the "Code Domain Analyzer" softkey.
a) Press the "Display Config" softkey
b) Select the tab for Screen A.
c) Select the "Peak Code Domain Error" softkey and start the measurement.
a) Open the "Frontend Settings" dialog box.
b) In the "Center Frequency" field enter 878.49 MHz.
c) In the "Ref Level" field enter 0 dBm.
d) Close the "Frontend Settings" dialog box.
6. Set an external trigger source.
a) Open the "IQ Capture Settings" dialog box.
b) Set the "Trigger Source" option to "External".
In the two screens, the following results are displayed: by default, screen A shows the
diagram of the Peak Code Domain Error. In screen B the result summary is displayed.
Displaying RHO
Make sure that all channels except the pilot channel (code 0.64) are OFF, so that only
the pilot channel is available in the measurement.
No specific measurement is required to get the value for RHO. The R&S FSVR always
calculates this value automatically regardless of the code domain measurement performed. Besides the results of the code domain measurements, the numeric result of
the RHO measurement is shown in the result summary, by default shown in screen B.
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5 Measurement Examples for the CDMA2000
MS Analysis (option K83)
This section explains basic CDMA2000 mobile station tests using a setup with a signal
generator, e.g. an R&S SMU. It describes how operating and measurement errors can
be avoided using correct settings. The measurements are performed with an
R&S FSVR equipped with the CDMA2000 MS Analysis option (K83).
As the CDMA2000 MS Analysis option also supports the CDMA2000 Standard, the
examples are performed on a CDMA2000 signal.
General Test Setup
The measurements are performed with the following units and accessories:
●
●
●
●
Measurement Examples for the CDMA2000 MS Analysis (option K83)
Test Setup for Base Station or Mobile Station Tests
An R&S FSVR equipped with the CDMA2000 MS Analysis option.
R&S SMU signal generator equipped with option SMU-B9/B10/B11 baseband gen-
erator and SMUK46 CDMA2000 incl. 1xEVDV.
1 coaxial cable, 50 Ω, approximately 1 m, N connector
2 coaxial cables, 50 Ω, approximately 1 m, BNC connector
● Test Setup for Base Station or Mobile Station Tests.............................................. 24
● Measuring the Signal Channel Power.....................................................................26
● Measuring the Spectrum Emission Mask................................................................27
● Measuring the Relative Code Domain Power and Frequency Error....................... 28
● Measuring the Triggered Relative Code Domain Power.........................................30
● Measuring the Composite EVM.............................................................................. 31
● Measuring the Peak Code Domain Error and the RHO Factor...............................33
5.1 Test Setup for Base Station or Mobile Station Tests
This section describes the default settings of the R&S FSVR, if it is used as a
CDMA2000 base or mobile station tester. Before starting the measurements, the
R&S FSVR has to be configured correctly and supplied with power as described in the
Quick Start Guide, "Preparing For Use". Furthermore, the application firmware of the
R&S FSV-K82 (base station) or -K83 (mobile station) must be enabled. Installation and
enabling of the application firmware are described in the Quick Start Guide.
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Risk of instrument damage during operation
An unsuitable operating site or test setup can cause damage to the instrument and to
connected devices. Ensure the following operating conditions before you switch on the
instrument:
●
●
●
●
●
●
Connect the antenna output (or TX output) of the base station/mobile station to the RF
input of the R&S FSVR. Use a power attenuator exhibiting suitable attenuation.
Measurement Examples for the CDMA2000 MS Analysis (option K83)
Test Setup for Base Station or Mobile Station Tests
All fan openings are unobstructed and the airflow perforations are unimpeded. The
minimum distance from the wall is 10 cm.
The instrument is dry and shows no sign of condensation.
The instrument is positioned as described in the following sections.
The ambient temperature does not exceed the range specified in the data sheet.
Signal levels at the input connectors are all within the specified ranges.
Signal outputs are correctly connected and are not overloaded.
TX signal
3
2
GHI1ABC
DEF
5 64
7
8
9
STU
ÜVW
XYZ
.-0
S CRCL M
RF
INPUT
The following values for external attenuation are recommended to ensure that the RF
input of the analyzer is protected and the sensitivity of the unit is not reduced too
much:
Maximum Power Recommended external attenuation
≥ 55 to 60 dBm 35 to 40 dB
≥ 50 to 55 dBm 30 to 35 dB
≥ 45 to 50 dBm 25 to 30 dB
≥ 40 to 45 dBm 20 to 25 dB
≥ 35 to 40 dBm 15 to 20 dB
≥ 30 to 35 dBm 10 to 15 dB
≥ 25 to 30 dBm 0 to 10 dB
≥ 20 to 25 dBm 0 to 5 dB
≤ 20 dBm 0 dB
25Operating Manual 1176.7626.02 ─ 04.1
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●
●
●
Presettings
●
●
●
●
●
●
●
Measurement Examples for the CDMA2000 MS Analysis (option K83)
Measuring the Signal Channel Power
For signal measurements at the output of two-port networks, connect the reference
frequency of the signal source to the rear reference input of the analyzer.
The R&S FSVR must be operated with an external frequency reference to ensure
that the error limits of the CDMA2000 specification for frequency measurements on
base stations/mobile stations are met. A rubidium frequency standard can be used
as a reference source for example.
If the base station/mobile station has a trigger output, connect the trigger output of
the base station/mobile station to the rear trigger input of the analyzer (EXT TRIG
GATE).
Enter the external attenuation.
Enter the reference level.
Enter the center frequency.
Set the trigger.
If used, enable the external reference.
Select the standard and the desired measurement.
Set the PN offset.
5.2 Measuring the Signal Channel Power
In the Power measurement, the total channel power of the CDMA2000 signal is displayed. The measurement also displays spurious emissions like harmonics or intermodulation products that occur close to the carrier.
Test setup:
●
Connect the RF output of the signal generator to the RF input of the R&S FSVR
(coaxial cable with N connectors).
Signal generator settings:
●
Frequency: 833.49 MHz
●
Level: 0 dBm
●
Standard: CDMA2000
●
Link direction: Uplink
Procedure:
1. Set the R&S FSVR to its default state.
a) Press the PRESET key.
2. Press the MODE key and activate the CDMA2000 MS Analysis option.
3. Start the Power measurement
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4. Set the center frequency to 833.49 MHz.
5. Set the reference level.
On the screen, the spectrum of the signal and the corresponding power levels within
the 1.2288 MHz channel bandwidth are displayed. In the table below the diagram, the
numeric values of the channel bandwidth of the TX Channel and power level of the
analyzed signal are listed.
Measurement Examples for the CDMA2000 MS Analysis (option K83)
Measuring the Spectrum Emission Mask
a) Press the MEAS key.
b) Press the "Power" softkey.
a) Press the AMPT key and enter 0 dBm.
5.3 Measuring the Spectrum Emission Mask
To detect spurious emissions such as harmonics or intermodulation products, the
R&S FSVR offers a spectrum emission mask measurement. The measurement compares the power against the spectrum emission mask in the range from -4 MHz to 4
MHz around the carrier. The exact measurement settings like the filter that is used
depend on the Band Class parameter. For a list of supported bandclasses refer to the
Bandclass softkey in the "Spectrum Emission Mask" menu.
Test setup:
●
Connect the RF output of the signal generator to the RF input of the R&S FSVR
(coaxial cable with N connectors).
Signal generator settings:
●
Frequency: 833.49 MHz
●
Level: 0 dBm
●
Standard: CDMA2000
●
Link direction: Uplink
Procedure:
1. Set the R&S FSVR to its default state.
a) Press the PRESET key.
2. Activate the "CDMA2000 MS Analysis" mode.
a) Press the MODE key and activate the "CDMA2000 MS Analysis" option.
3. Start the measurement.
a) Press the MEAS key.
b) Press the "Spectrum Emission Mask" softkey.
4. Set the center frequency.
a) Press the FREQ key and enter 878.49 MHz.
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5. Set the reference level.
6. Select a bandclass
On the screen, the spectrum of the signal is displayed, including the limit line defined in
the standard. To understand where and about how much the measurement has failed,
the "List Evaluation" table shows the frequencies where spurious emissions occur.
Measurement Examples for the CDMA2000 MS Analysis (option K83)
Measuring the Relative Code Domain Power and Frequency Error
a) Press the AMPT key and enter 0 dBm.
a) Press the "Bandclass" softkey and select BandClass 0: 800 MHz Cellular Band
from the list.
5.4 Measuring the Relative Code Domain Power and Frequency Error
A Code Domain Power measurement analyses the signal over a single Power Control
Group (PCG). It also determines the power of all codes and channels.
The following examples show a Code Domain Power measurement on a test model
with 9 channels. In this measurement, changing some parameters one after the other
should demonstrate the resulting effects: values adapted to the measurement signal
are changed to non-adapted values.
In the following examples, adjusting the settings of the code domain measurements is
described using the dialog boxes. Alternatively, most of the settings can also be modified by using the corresponding hardkeys as in the base unit (e.g. the center frequency
can be either set in the "Frontend Settings" dialog box, or via the FREQ key).
Test setup:
●
Connect the RF output of the signal generator to the RF input of the R&S FSVR.
●
Connect the reference input (EXT REF) on the rear panel of the R&S FSVR to the
reference output (REF) of the signal generator (coaxial cable with BNC connectors).
Signal generator settings:
Frequency: 833.49 MHz
Level: 0 dBm
Standard: CDMA2000
Procedure:
1. Set the R&S FSVR to its default state.
a) Press the PRESET key.
2. Activate the "CDMA2000 BS Analysis" Mode.
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3. Enter the Code Domain Analyzer.
4. Start the measurement
5. Set the center frequency and the reference level.
In the two screens, the following results are displayed: screen A shows the power of
the code domain of the signal. The x-axis represents the individual channels (or
codes), while the y-axis shows the power of each channel.
Measurement Examples for the CDMA2000 MS Analysis (option K83)
Measuring the Relative Code Domain Power and Frequency Error
a) Press the MODE key and select "CDMA2000 BS Analysis".
a) Press the MEAS key
b) Press the "Code Domain Analyzer" softkey.
a) In the "Code Domain Analyzer" menu, press the "Display Config" softkey.
b) Select the "Code Domain Power" measurement.
a) In the "Code Domain Analyzer" menu, press the "Frontend Settings" softkey.
b) In the "Center Frequency" field enter 833.49 MHz.
c) In the "Ref Level" field enter 10 dBm.
d) Close the "Frontend Settings" dialog box.
In screen B the result summary is displayed. It shows the numeric results of the code
domain power measurement, including the frequency error.
By default, the R&S FSV-K83 displays two measurement screens. After a preset
screen A is always the "Code Domain Power" result display. Screen B is always the
"Result Summary" display.
For more information on the display concept refer to chapter 6.1.1, "Display Concept",
on page 36.
Synchronization of the reference frequencies
The frequency error can be reduced by synchronizing the transmitter and the receiver
to the same reference frequency.
●
Press the SETUP key.
– Press the "Reference Int/Ext" softkey to switch to an external reference.
Screen A again shows the Code Domain Power measurement and screen B the result
summary. After the synchronization of the reference frequencies of the devices, the
frequency error should now be smaller than 10 Hz.
Behavior with deviating center frequency setting
A measurement can only be valid if the center frequency of the DUT and the analyzer
are balanced.
1. On the signal generator, change the center frequency in steps of 0.1 kHz and
observe the analyzer screen.
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2. Reset the center frequency of the signal generator to 833.49 MHz.
The center frequency of the DUT should not deviate by more than 1.0 kHz from that of
the R&S FSVR.
Measurement Examples for the CDMA2000 MS Analysis (option K83)
Measuring the Triggered Relative Code Domain Power
Up to a frequency error of approximately 1.0 kHz, a Code Domain Power measurement on the R&S FSVR is still possible. A frequency error within this range causes
no apparent difference in the accuracy of the Code Domain Power measurement.
In case of a frequency error of more than 1.0 kHz, the probability of incorrect synchronization increases. This is indicated by the "SYNC FAILED" error message.
If the frequency error exceeds approximately 1.5 kHz, a Code Domain Power measurement cannot be performed. This is also indicated by the "SYNC FAILED" error
message.
5.5 Measuring the Triggered Relative Code Domain Power
If the code domain power measurement is performed without external triggering, a section of the test signal is recorded at an arbitrary point of time and the firmware attempts
to detect the start of a PCG. To detect this start, all possibilities of the PN sequence
location have to be tested in Free Run trigger mode. This requires computing time.
This computing time can be reduced by using an external (frame) trigger and entering
the correct PN offset. If the search range for the start of the power control group and
the PN offset are known then fewer possibilities have to be tested. This increases the
measurement speed.
Test setup:
●
Connect the RF output of the signal generator to the input of the R&S FSVR.
●
Connect the reference input (EXT REF) on the rear panel of the R&S FSVR to the
reference input of the signal generator (coaxial cable with BNC connectors).
●
Connect the external trigger input on the rear panel of the R&S FSVR (EXT TRIGGER/GATE IN) to the external trigger output of the signal generator.
Signal generator settings:
●
Frequency: 833.49 MHz
●
Level: 0 dBm
●
Standard: CDMA2000
●
Link direction: Uplink
Procedure:
1. Set the R&S FSVR to its default state.
a) Press the PRESET key.
30Operating Manual 1176.7626.02 ─ 04.1
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