Tektronix WCA230A, WCA280A User Manual

User Manual

WCA230A & WCA280A Option 26
1xEV-DO Analysis Software

071-1371-00

This document supports software version 1.00 and above.

www.tektronix.com

Copyright © Tektronix, Inc. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication

supercedes that in all previously published material. Specifications and price change privileges reserved.
Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.

Software Warranty

T ektronix warrants that the media on which this software product is furnished and the encoding of the programs on the
media will be free from defects in materials and workmanship for a period of three (3) months from the date of
shipment. If a medium or encoding proves defective during the warranty period, T ektronix will provide a replacement
in exchange for the defective medium. Except as to the media on which this software product is furnished, this software
product is provided “as is” without warranty of any kind, either express or implied. Tektronix does not warrant that the
functions contained in this software product will meet Customer’s requirements or that the operation of the programs
will be uninterrupted or error-free.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of
the warranty period. If Tektronix is unable to provide a replacement that is free from defects in materials and
workmanship within a reasonable time thereafter, Customer may terminate the license for this software product and
return this software product and any associated materials for credit or refund.

THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR
IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PAR TICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY
TO REPLACE DEFECTIVE MEDIA OR REFUND CUSTOMER’S PAYMENT IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR
THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

Hardware Warranty

Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and
workmanship for a period of one (1) year from the date of shipment. If a product proves defective during this warranty
period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will
provide a replacement in exchange for the defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of
the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges
prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country
in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties,
taxes, and any other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to
repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or
malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrated
with other products when the effect of such modification or integration increases the time or difficulty of servicing the
product.

THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR
IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANT ABILITY OR FITNESS FOR A P AR TICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY
TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY
PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS
VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

Table of Contents

Getting Started

Operating Basics

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Related Manuals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Contacting Tektronix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

1xEV-DO Forward Link Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Modulation Accuracy Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Code Domain Power Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Channel Power Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

OBW Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

ACPR Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Spectrum Emission Mask Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Gated Output Power Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

Intermodulation Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

CCDF Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

Pilot to Code Channel Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34

1xEV-DO Reverse Link Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37

Modulation Accuracy Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38

Code Domain Power Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46

Spectrum Emission Mask Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49

Pilot to Code Channel Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51

Editing the Measurement Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55

Using the Measurement Limits Editor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55

Saving and Loading Measurement Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-64

Measurement Limit Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65

Syntax and Commands

Command Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

:CONFigure Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

:DISPlay Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

:FETCh Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43

:MMEMory Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65

:READ Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-67

:SENSe Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual i

Table of Contents

Appendices

Index

Appendix A: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Appendix B: Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Appendix C: Setting Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Appendix D: SCPI Conformance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

ii WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

List of Figures

List of Figures

Figure 2-1: Menu diagram showing measurement functions available

in Option 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Figure 2-2: Modulation accuracy measurement . . . . . . . . . . . . . . . . . . . . 2-4

Figure 2-3: Modulation accuracy display . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Figure 2-4: EVM display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Figure 2-5: MagErr display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Figure 2-6: PhaseErr display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Figure 2-7: Symbol table display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Figure 2-8: Code domain power measurement . . . . . . . . . . . . . . . . . . . . 2-12

Figure 2-9: Code domain power display . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Figure 2-10: Power codogram display . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Figure 2-11: IQ power graph display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Figure 2-12: Channel power measurement . . . . . . . . . . . . . . . . . . . . . . . 2-21

Figure 2-13: OBW measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Figure 2-14: ACPR measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Figure 2-15: Spectrum emission mask measurement . . . . . . . . . . . . . . . 2-24

Figure 2-16: Gated output power measurement . . . . . . . . . . . . . . . . . . . 2-27

Figure 2-17: Intermodulation measurement . . . . . . . . . . . . . . . . . . . . . . 2-30

Figure 2-18: CCDF measurement (single view) . . . . . . . . . . . . . . . . . . . . 2-31

Figure 2-19: Scale settings in the CCDF display . . . . . . . . . . . . . . . . . . . 2-33

Figure 2-20: Pilot to code channel measurement . . . . . . . . . . . . . . . . . . . 2-34

Figure 2-21: Modulation accuracy measurement-reverse link . . . . . . . 2-38

Figure 2-22: Modulation accuracy display-reverse link . . . . . . . . . . . . . 2-41

Figure 2-23: EVM display-reverse link . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42

Figure 2-24: MagErr display-reverse link . . . . . . . . . . . . . . . . . . . . . . . . 2-43

Figure 2-25: PhaseErr display-reverse link . . . . . . . . . . . . . . . . . . . . . . . 2-44

Figure 2-26: Symbol table display-reverse link . . . . . . . . . . . . . . . . . . . . 2-45

Figure 2-27: Code domain power measurement-reverse link . . . . . . . . 2-46

Figure 2-28: Spectrum emission mask measurement-reverse link . . . . 2-49

Figure 2-29: Pilot to code channel measurement-reverse link . . . . . . . . 2-51

Figure 2-30: Measurement limits editor . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55

Figure 2-31: ACPR measurement limits editor . . . . . . . . . . . . . . . . . . . . 2-58

Figure 2-32: Spectrum emission mask measurement limits editor . . . . 2-60

Figure 2-33: Gated output power measurement limits editor . . . . . . . . 2-62

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual iii

List of Figures

iv WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

List of Tables

List of Tables

Table 2-1: Measurement limits items . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56

Table 2-2: Measurement limit items for the ACPR measurement . . . . 2-58

Table 2-3: Measurement limit items for the spectrum emission mask

measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-60

Table 2-4: Measurement limit items for the gated output power

measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-62

Table 2-5: Forward link common limits . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65

Table 2-6: Reverse link common limits . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65

Table 2-7: Forward and reverse link: all band classes . . . . . . . . . . . . . . 2-66

Table 2-8: Forward link: BC (band class) 0, 2, 3, 5, and 9 . . . . . . . . . . . 2-66

Table 2-9: Forward link: BC (band class) 1, 4, and 8 . . . . . . . . . . . . . . . 2-67

Table 2-10: Forward link: BC (band class) 3b . . . . . . . . . . . . . . . . . . . . 2-67

Table 2-11: Forward link: BC (band class) 6 . . . . . . . . . . . . . . . . . . . . . . 2-68

Table 2-12: Forward link: BC (band class) 7 . . . . . . . . . . . . . . . . . . . . . . 2-68

Table 2-13: Reverse link: BC (band class) 0, 2, 3, 5, and 9 . . . . . . . . . . . 2-69

Table 2-14: Reverse link: BC (band class) 1, 4, and 8 . . . . . . . . . . . . . . . 2-69

Table 2-15: Reverse link: BC (band class) 6 . . . . . . . . . . . . . . . . . . . . . . 2-70

Table 2-16: Reverse link: BC (band class) 7 . . . . . . . . . . . . . . . . . . . . . . 2-70

Table 2-17: Forward and reverse link: BC (band class) 0, 1, 2, 3, 4, 5, 7,

8, and 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-71

Table 2-18: Forward link: BC (band class) 6 . . . . . . . . . . . . . . . . . . . . . . 2-71

Table 2-19: Reverse link: BC (band class) 6 . . . . . . . . . . . . . . . . . . . . . . 2-72

Table 2-20: Forward link, all band classes, idle slot . . . . . . . . . . . . . . . . 2-72

Table 2-21: Forward link, all band classes, active slot . . . . . . . . . . . . . . 2-73

Table 3-1: Measurement modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Table 3-2: :CONFigure commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-3: :DISPlay commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-4: :FETCh commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Table 3-5: :MMEMory commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Table 3-6: :READ commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Table 3-7: :SENSe commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Table 3-8: :DISPlay command subgroups . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Table 3-17: :SENSe command subgroups . . . . . . . . . . . . . . . . . . . . . . . . 3-79

WCA230A & WCA280A Option 26 1xEVDO Analysis Software User Manual v

List of Tables

Table A-1: 1xEV-DO forward link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Table A-2: 1xEV-DO reverse link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Table B-1: Factory default settings-:DISPlay commands . . . . . . . . . . . . B-1

Table B-2: Factory default settings-:SENSe commands . . . . . . . . . . . . . B-2

Table C-1: Display format and scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Table D-1: SCPI conformance information-:CONFigure commands . . D-1

Table D-2: SCPI conformance information-:DISPlay commands . . . . . D-1

Table D-3: SCPI conformance information-:FETCh commands . . . . . . D-3

Table D-4: SCPI conformance information-:MMEMory commands . . D-3

Table D-5: SCPI conformance information-:READ commands . . . . . . D-4

Table D-6: SCPI conformance information-:SENSe commands . . . . . . D-4

vi WCA230A & WCA280A Option 26 1xEVDO Analysis Software User Manual

Preface

About This Manual

This manual provides operating instructions for the WCA230A & WCA280A
Portable Wireless Communication Analyzers Option 26 1xEV-DO analysis
software.

This manual is composed of the following sections:

 Getting Started provides a product description.
 Operating Basics describes the measurement functions added by the option

and explains how to set up the analyzer for each measurement mode.

 Syntax and Commands lists all command subsystems and describes all

programming commands.

 Appendices provides additional information including specifications, factory

default settings, and SCPI conformance information.

Related Manuals

The following related documents are also available:

 The WCA230A & WCA280A Portable Wireless Communication Analyzers

User Manual (Tektronix part number 071-1253-xx) contains a tutorial that

describes how to operate the analyzer. It also includes an in-depth discussion
on how to more completely use the analyzer features.

 The WCA230A & WCA280A Portable Wireless Communication Analyzers

Programmer Manual (Tektronix part number 071-1255-xx) contains an

alphabetical listing of the programming commands and other information
related to controlling the analyzer over the GPIB interface.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual vii

Preface

Contacting Tektronix

Phone [phone]*

Address Tektronix, Inc.

Department or name (if known)
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA

Web site wwww.tektronix.com

Sales support 1-800-833-9200, select option 1*

Service support 1-800-833-9200, select option 2*

Technical support Email: [e-mail]

1-800-833-9200, select option 3*
6:00 a.m. - 5:00 p.m. Pacific time

* This phone number is toll free in North America. After office hours, please leave a

voice mail message.
Outside North America, contact a Tektronix sales office or distributor; see the
Tektronix web site for a list of offices.

viii WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Getting Started

Getting Started

Product Description

This section provides an overview of the product capabilities.

The WCA230A & WCA280A Wireless Communication Analyzers Option 26 is an
analysis software option that adds transmitter measurements capability for
1xEV -DO forward link (3GPP2 C.S0032) and reverse link (3GPP2 C.S0033) to the
analyzers.

You can perform the following 1xEV-DO measurements:

 Modulation accuracy
 Code domain power
 Channel power
 OBW (occupied bandwidth)
 ACPR (Adjacent channel power ratio)
 Spectrum emission mask
 Gated output power (forward link only)
 Intermodulation
 CCDF
 Pilot to code channel

In addition, the option provides pre-defined measurement limits for the ACPR,
spectrum emission mask, and gated output power measurements. Using these
measurement limits, you can easily check that the input signal meets the
specification.

WCA230A/WCA280A Option 26 1xEV-DO Analysis Software User Manual 1-1

Getting Started

1-2 WCA230A/WCA280A Option 26 1xEV-DO Analysis Software User Manual

Operating Basics

Functional Overview

This section provides an overview of the Option 26 measurement functions.

Figure 2-1 shows the measurement functions and how to access each measurement
function from the front-panel menu key.

Other option name
(if installed)

MODE

S/A

DEMOD

TIME

DEMOD
menu

Analog Demod

Digital Demod

Standard...

Standard
menu

1xEV-DO-Fwd

1xEV-DO-Rev

Measurement functions
added by Option 26

Modulation Accuracy
Code Domain Power
Channel Power
OBW

MEASURE
menu

MEASURE
menu

ACPR
Spectrum Emission Mask
Gated Output Power
Intermodulation
CCDF
Pilot to Code Channel

Modulation Accuracy
Code Domain Power
Channel Power
OBW
ACPR
Spectrum Emission Mask
Intermodulation
CCDF

Pilot to Code Channel

Figure 2-1: Menu diagram showing measurement functions available in Option 26

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-1

Functional Overview

Accessing a Measurement

Function

All of the measurement functions available in Option 26 can be selected from the
DEMOD (demodulation) mode.

Perform the following procedure to access any of the measurement functions:

1. Press the DEMOD menu key to open the DEMOD menu.

2. Press the Standard... side key to open the Standard menu.

3. Press the 1xEV-DO Fwd or 1xEV-DO Rev side key to open the MEASURE

menu for the standard.

4. Press one of the side keys to select the measurement that you want to perform.

If the desired measurement is not displayed on the current MEASURE menu,
press the Go to page 2 (of 2) side key to open the next page.

5. If needed, set frequency, span, and amplitude of the input signal.

Refer to the WCA230A & WCA280A Portable Wireless Communication
Analyzers User Manual for information on how to set frequency, span, and
amplitude.

2-2 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Forward Link Measurements

This section describes the functions and features of the 1xEV-DO forward link
measurements. Each measurement description contains general information about
the measurement, descriptions of the measurement displays and functions available
through menu selections.

The information is divided into the following subsections:

 Modulation accuracy measurement
 Code domain power measurement
 Channel power measurement
 OBW measurement
 ACPR measurement
 Spectrum emission mask measurement
 Gated output power measurement
 Intermodulation measurement
 CCDF measurement
 Pilot to code channel measurement

NOTE. If you are not familiar with the operation of the WCA230A/WCA280A, r efer

to the WCA230A & WCA280A Portable Wireless Communication Analyzers User
Manual before reading this section.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-3

1xEV-DO Forward Link Measurements

Modulation Accuracy Measurement

The modulation accuracy measurement measures Rho (ratio of the correlated
power to the total power), EVM (Error Vector Magnitude), magnitude error, phase
error, frequency error, and origin offset. Figure 2-2 shows an example of the
modulation accuracy measurement.

Figure 2-2: Modulation accuracy measurement

Display Elements

2-4 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

The following information is shown in the modulation accuracy measurement
display:

 Overview: This view can contain power versus time or spectrogram.
 Subview: This view can contain spectrum, EVM, magnitude error, phase

error, IQ power graph, and constellation.

 Main view: This view can contain modulation accuracy, EVM, magnitude

error, phase error, and symbol table.

The display contents in each view can be changed using the VIEW DEFINE menu.
Refer to Changing the View Contents on page 2-6 for more information about the
VIEW DEFINE menu.

1xEV-DO Forward Link Measurements

Setting the Timing

Parameters

You can set the following timing parameters using the TIMING menu. Press the
TIMING key to open the TIMING menu.

 Acquisition (chips): Sets the acquisition length in chips. The range depends

on the acquisition memory size and the span setting.

 Acquisition Length (s): Displays the acquisition length in seconds.
 Acquisition History: Specifies the number of the block to display and

analyze. The latest block is number zero. Older blocks have larger negative
numbers.

 Analysis Interval: Sets the analysis interval in half slots. The range depends

on the acquisition length setting.

 Analysis Offset: Sets the start point of the analysis with respect to the left end

of the acquisition length in half slots.

 Spectrum Length: Displays the time length for FFT processing of the

spectrum displayed in the subview. This value is equivalent to one frame
acquisition length.

 Spectrum Offset: Sets the beginning of Spectrum Length with respect to the

left end of the acquisition length.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for detailed information about the timing parameters.

Setting the Measurement

Parameters

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Analyze: Performs analysis for the time slots in the analysis range.
 Measurement Level: Selects the measurement level for the measurement.

You can select Chip (chip level) or Symbol (symbol level). When Overall is
selected in the Channel Type menu item, you cannot select Symbol.

 Channel Type...: Select the channel type to be measured. When Symbol is

selected in the Measurement Level menu item, you can select MAC, Pilot,
Data, or Preamble. When Chip is selected in the Measurement Level menu
item, you can select Overall, MAC, Pilot, Data, or Preamble.

 PN Offset: Sets the PN of fset in units of 64 chips. You can set the value from

0 to 511.

 Select HalfSlot: Sets the half slot for the measurement.
 Select Code: Sets the code in the half slot for the measurement. This setting is

only available when Measurement Level is set to Symbol.

 Active Channel Threshold: Sets the active channel threshold level (in dB

from the pilot) used for deciding whether a code channel is active or inactive.
You can set the value from -100 dB to 0 dB.

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1xEV-DO Forward Link Measurements

 Measurement Filter...: Selects the measurement filter to apply when

calculating EVM and other modulation accuracy results. Y ou can select None,
cdma2000, or cdma2000+EQ (equalizer).

 IQ Swap: Sets whether to swap the I and Q data streams before demodulation.
 Limits...: Sets the pass/fail limits for the modulation accuracy measurement.

When pressing this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-55 for more information.

Changing the View

Contents

You can change the view contents in the overview, subview, and main view using
the VIEW DEFINE menu. Press the View: DEFINE key to display the VIEW
DEFINE menu.

 Show Views: Selects the view style on the screen. You can sele ct Single or

Multi.

 Overview Content...: Selects a view to display in the overview. You can

select Spectrogram or Waveform (power versus time).

 Subview Content...: Selects a view to display in the subview:

 Spectrum: Displays spectrum of the measured signal.
 EVM: Displays changes of EVM (Error Vector Magnitude) over time.
 MagErr: Displays changes of magnitude error over time.
 PhaseErr: Displays changes of phase error over time.
 IQ Power Graph: Displays changes of I and Q powers over time. Refer

to IQ Power Graph Display on page 2-19.

 Constellation: Displays the signal as an I-Q constellation.

 Mainview Content...: Selects a view to display in the main view. You can

select Modulation Accuracy, EVM, MagErr , PhaseErr , or Symbol T able. Refer
to Scale and Format in the Main V iew on page 2-7 for more in formation about
the views.

 Menu Off: Hides the side menu. T o display the menu again, press the MENU

side key or VIEW: DEFINE key.

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1xEV-DO Forward Link Measurements

Scale and Format in the

Main View

1: second half slot

This subsection describes the scale settings and display format in the main view.

Modulation Accuracy Display. When you select Mainview Content from the VIEW
DEFINE menu and then select Modulation Accuracy from the Mainview Content
submenu, an IQ rectangular graph and the measured value for Rho, peak code
domain error, rms and peak EVM, magnitude error, phase error, frequency error,
IQ origin offset, and Tau (timing error) are displayed (see Figure 2-3).The peak
code domain error is displayed only when the Measurement Level menu item is set
to Symbol, and Tau is displayed only when an external trigger signal is applied.

Half slot number

0: first half slot

Number of preamble chips

Number of data chips

IQ rectangular graph

(Vector display)

Figure 2-3: Modulation accuracy display

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Measurement Content...: Selects vector or constellation display.

Vector: Selects vector display . A signal represented with phase and amplitude
is displayed in rectangular (I and Q) coordinates. The red point indicates the
symbol position on the measured signal, and the yellow trace indicates the
locus of the signal between symbols.

Constellation: Selects constellation display. It is the same as the vector
display, except that only symbols of the measured signal are indicated in red,
and the locus between symbols is not shown. The cross marks indicate symbol

positions of an ideal signal.

NOTE. I and Q signals are normalized to prevent the scale from changing when

signal attenuation changes.

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1xEV-DO Forward Link Measurements

EVM Display. When you select Mainview Content from the VIEW DEFINE menu
and then select EVM from the Mainview Content submenu, changes of EVM
(Error Vector Magnitude) over time are displayed for each chip or symbol (see
Figure 2-4).

Symbol number

Horizontal Start

Code number and channel number

Vertical Scale

Vertical Start

Horizontal Scale

Figure 2-4: EVM display

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis to display the

entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis (number of chips or

symbols).

 Horizontal Start: Sets the chip number or symbol number of the first (left)

value of the horizontal axis.

 Vertical Scale: Sets the scale of the vertical axis.
 Vertical Start: Sets the minimum (bottom) value of the vertical axis.
 Full Scale: Sets the scale of vertical axis to the default full-scale value.
 Measurement Content...: Selects the display content in the main view. You

can select EVM, MagErr, or PhaseErr. This selection can also be made from
Mainview Content in the VIEW DEFINE menu.

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1xEV-DO Forward Link Measurements

MagErr Display. When you select Mainview Content from the VIEW DEFINE
menu and then select MagErr from the Mainview Content submenu, changes of
magnitude error over time are displayed for each chip or symbol (see
Figure 2-5).

Symbol number

Horizontal Start

Code length and channel number

Vertical Scale

Horizontal Scale

Figure 2-5: MagErr display

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis automatically

to display the entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis (number of chips or

symbols).

 Horizontal Start: Sets the chip number or symbol number of the first (left)

value of the horizontal axis.

 Vertical Scale: Sets the scale of the vertical axis.
 Vertical Offset: Sets the offset value of the vertical axis. Y ou can set the value

from -200% to 200%.

 Full Scale: Sets the scale of vertical axis to the default full-scale value.
 Measurement Content...: Selects the display content in the main view. You

can select EVM, MagErr, or PhaseErr. This selection can also be made from
Mainview Content in the VIEW DEFINE menu.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-9

1xEV-DO Forward Link Measurements

PhaseErr Display. When you select Mainview Content from the VIEW DEFINE
menu and then select PhaseErr from the Mainview Content submenu, changes of
phase error over time are displayed for each chip or symbol (see Figure 2-6).

Symbol number

Horizontal Start

Code length and channel number

Vertical Scale

Horizontal Scale

Figure 2-6: PhaseErr display

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis automatically

to display the entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis (number of chips or

symbols).

 Horizontal Start: Sets the chip number or symbol number of the first (left)

value of the horizontal axis.

 Vertical Scale: Sets the scale of the vertical axis.
 Vertical Offset: Sets the offset value of the vertical axis. Y ou can set the value

from -450 to 450 degrees.

 Full Scale: Sets the scale of vertical axis to the default full-scale value.
 Measurement Content...: Selects the display content in the main view. You

can select EVM, MagErr, or PhaseErr. This selection can also be made from
Mainview Content in the VIEW DEFINE menu.

Symbol Table Display. When you select Mainview Content from the VIEW
DEFINE menu and then select Symbol Table from the Mainview Content

2-10 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Forward Link Measurements

submenu, the symbol table is displayed (see Figure 2-7). This display is only
available when the Measurement Level menu item is set to Symbol.

Code length and channel number

Symbol number

Channel type

Figure 2-7: Symbol table display

You can set the radix for the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Radix...: Sets the radix for displaying the table. You can select Hex

(hexadecimal), Oct (octal), or Bin (binary).

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-11

1xEV-DO Forward Link Measurements

Code Domain Power Measurement

The code domain power measurement measures the distribution of signal power
across the set of code channels, normalized to the total signal power. This
measurement allows you to verify that each code channel is operating at its proper
level. Figure 2-8 shows an example of the code domain power measurement.

Figure 2-8: Code domain power measurement

Display Elements

2-12 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

The following information is shown in the code domain power measurement
display:

 Overview: This view can contain power versus time or spectrogram.
 Subview: This view can contain spectrum, EVM, magnitude error, phase

error, IQ power graph, and constellation .

 Main view: This view can contain code domain power , power codogram, and

IQ power graph.

The display contents in each view can be changed using the VIEW DEFINE menu.
Refer to Changing the V iew Co ntents on page 2-14 for more information about the
VIEW DEFINE menu.

1xEV-DO Forward Link Measurements

Setting the Timing

Parameters

You can set the following timing parameters using the TIMING menu. Press the
TIMING key to open the TIMING menu.

 Acquisition Length (chips): Sets the acquisition length in chips. The range

depends on the acquisition memory size and the span setting.

 Acquisition Length (s): Displays the acquisition length in seconds.
 Acquisition History: Specifies the number of the block to display and

analyze. The latest block is number zero. Older blocks have larger negative
numbers.

 Analysis Interval: Sets the analysis interval in half slots. The range depends

on the acquisition length setting.

 Analysis Offset: Sets the start point of the analysis with respect to the left end

of the acquisition length in half slots.

 Spectrum Length: Display the time length for FFT processing of the spectrum

displayed in the subview. This value is equivalent to one frame acquisition
length.

 Spectrum Offset: Sets the beginning of Spectrum Length with respect to the

left end of the acquisition length.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for detailed information about the timing parameters.

Setting the Measurement

Parameters

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Analyze: Performs analysis for the time slots in the analysis range.
 Measurement Level: Selects the measurement level for the measurement.

Y o u can select Chip (chip level) or Symbol (symbol level). This setting is only
available when Mainview Content in the VIEW DEFINE menu is set to IQ
Power Graph.

 Channel Type...: Selects the channel type to be measured. You can select

MAC, Pilot, Data, or Preamble.

 PN Offset: Sets the PN of fset in units of 64 chips. You can set the value from

0 to 511.

 Select HalfSlot: Sets the half slot for the measurement.
 Select Code: Sets the code in the half slot for the measurement.
 Active Channel Threshold: Sets the active channel threshold level (in dB

from the pilot) used for deciding whether a code channel is active or inactive.
You can set the value from -100 dB to 0 dB.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-13

1xEV-DO Forward Link Measurements

 Measurement Filter...: Selects the measurement filter to apply when

calculating code domain power results. You can select None, cdma2000, or
cdma2000+EQ (equalizer).

 IQ Swap: Sets whether to swap the I and Q data streams before demodulation.
 Limits...: Sets the pass/fail limits for the code domain power measurement.

When pressing this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-55 for more information.

Changing the View

Contents

You can change the contents in the overview, subview, and main view using the
VIEW DEFINE menu. Press the VIEW: DEFINE key to display the VIEW
DEFINE menu.

 Show Views: Selects the view style on the screen. You can sele ct Single or

Multi.

 Overview Content...: Selects a view to display in the overview. You can

select Spectrogram or Waveform (power versus time).

 Subview Content...: Selects a view to display in the subview:

 Spectrum: Displays spectrum of the input signal.
 EVM: Displays changes of EVM (Error Vector Magnitude) over time.
 MagErr: Displays changes of magnitude error over time.
 PhaseErr: Displays changes of phase error over time.
 IQ Power Graph: Displays changes I and Q powers over time. Refer to

IQ Power Graph Display on page 2-19.

 Constellation: Displays the signal as an I-Q constellation.

 Mainview Content...: Selects a view to display in the main view. You can

select Code Domain Power, Power Codogram, or IQ Power Graph. Refer to
Scale and Format in the Main View on page 2-15 for more information about

the views.

 Code Order...: Sets the way that code channels are arranged on the display.

You can select Hada mard or BitReverse.

 Menu Off: Hides the side menu. T o display the menu again, press the MENU

side key or VIEW: DEFINE key.

2-14 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Forward Link Measurements

Scale and Format in the

Main View

Code length and channel number

Marker readout

Vertical Stop

This subsection describes the scale settings and display format in the main view.

Code Domain Power Display. When you select Mainview Content from the VIEW
DEFINE menu and then select Code Domain Power from the Mainview Content
submenu, the code domain power for code channels is displayed (see Figure 2-9).

active, inactive, or pilot display

Channel type

Code domain power

Vertical Scale

Horizontal Scale

Horizontal Start

Figure 2-9: Code domain power display

In the code domain power display, the I and Q power bars are distinguished by
using different colors as follows:

 Blue: pilot channel
 Red: active channel
 Yellow: inactive channel

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-15

1xEV-DO Forward Link Measurements

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis automatically

to display the entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis. The range is depe ndent

on the Channel Type setting.

 Horizontal Start: Sets the channel number of the first (left) value of the

horizontal axis.

 Vertical Scale: Sets the scale of the vertical axis. You can set the value from

100

 Vertical Stop: Sets the maximum (top) value of the vertical axis. You can set

the value from -100 dB to 100 dB.

 Full Scale: Sets the scale of the vertical axis to the default full-scale value.
 Y Axis...: Selects whether to represent the vertical (amplitude) axis with

relative values or absolute values. When you select Relative, the vertical axis
represents the power relative to the total power of all channels. When you
select Absolute, the vertical axis represents the absolute power of each
channel.

µdB to 100 dB.

 Graph Number: Selects the number of graphs to be displayed in the screen.

You can select 1 or 2.

 View Data...: Sets which channels to display when 1 is selected in the Graph

Number menu item. You can select I, Q, or IandQ.

2-16 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Forward Link Measurements

Power Codogram Display. When you select Mainview Content from the VIEW
DEFINE menu and then select Power Codogram from the Mainview Content
submenu, the code domain power is displayed in spectrogram (see Figure 2-10).

Code length and channel number

Marker readout

Color Scale

Vertical Size

Vertical Start

active, inactive, or pilot display

Channel type

Code domain power

Half slot number

Relative time from completion of data acquisition

Horizontal Scale

Horizontal Start

Figure 2-10: Power codogram display

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis to display the

entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis. The range is depe ndent

on the Channel Type setting.

 Horizontal Start: Sets the channel number of the first (left) value of the

horizontal axis.

 Vertical Size: Sets the scale of the vertical axis.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-17

1xEV-DO Forward Link Measurements

 Vertical Start: Sets the frame value at the bottom of the vertical axis.
 Color Scale: Sets the scale (the value separating the minimum power value

from the maximum power value) of the color axis. The choices are 5, 10, 20,
and 50 dB.

 Color Stop: Sets the stop value of the color axis.
 Full Scale: Sets the maximum value of the color axis to the reference level.
 Y Axis...: Selects whether to represent the Y (color) axis with relative values

or absolute values. When you select Relative, the Y axis represents the power
relative to the total power of all channels. When you select Absolute, the Y axis
represents the absolute power of each channel.

 Graph Number: Selects the number of graphs to be displayed in the screen.

You can select 1 or 2.

 View Data...: Sets which channels to display when 1 is selected in the Graph

Number menu item. You can select I, Q, or IandQ.

2-18 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Forward Link Measurements

IQ Power Graph Display. When you select Mainview Content from the VIEW
DEFINE menu and then select IQ Power Graph from the Mainview Content
submenu, I and Q powers over time are displayed for each chip or symbol (see
Figure 2-11).

Marker readout

Vertical Stop

Vertical Scale

Symbol number

Code length and channel number

Horizontal Scale

Horizontal Start

Figure 2-11: IQ power graph display

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis automatically

to display the entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis (number of chips or

symbols).

 Horizontal Start: Sets the start chip or symbol number of the horizontal ax is.
 Vertical Scale: Sets the scale of the vertical axis. You can set the value from

µdB to 100 dB.

100

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-19

1xEV-DO Forward Link Measurements

 Vertical Stop: Sets the stop value of the vertical axis. You can set the value

from -100 dB to 100 dB.

 Full Scale: Sets the scale of the vertical axis to the default full scale value.
 Y Axis...: Selects whether to represent the vertical (amplitude) axis with

relative values or absolute values. When you select Relative, the vertical axis
represents the power relative to the total power of all channels. When you
select Absolute, the vertical axis represents the absolute power of each
channel.

 Graph Number: Selects the number of graphs to be displayed in the screen.

You can select 1 or 2.

 View Data...: Sets which channels to display when 1 is selected in the Graph

Number menu item. You can select I, Q, or IandQ.

2-20 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Channel Power Measurement

The channel power measurement measures the channel power within a specified
bandwidth and the power spectral density in dBm/Hz. Figure 2-12 shows an
example of the channel power measurement.

1xEV-DO Forward Link Measurements

Figure 2-12: Channel power measurement

Setting the Measurement

Parameters

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-21

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Channel Bandwidth: Sets the frequency range for the measurement.
 Measurement Filter Shape: Sets the filter to be used for the measurement.

You can select Rect (Rectangular), Gaussian, Nyquist, or Root Nyquist.

 Rolloff Ratio: Enters the rolloff rati o when the Nyquist or Root Nyquist filter

is selected. You can set the value from 0.0001 to 1. The default value is 0.5.

 Limits...: Sets the pass/fail limit for the channel power measurement. When

pressing this side key , the measurement limits edi tor appears. Refer to Editing
the Measurement Limits on page 2-55 for more information.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for information about the scale settings for the display.

1xEV-DO Forward Link Measurements

OBW Measurement

The OBW (Occupied Bandwidth) measurement measures the frequency
bandwidth, using the ratio you specify for carrier signal power/power within the
span setting. Figure 2-13 shows an example of the OBW measurement.

Figure 2-13: OBW measurement

Setting the Measurement

Parameters

2-22 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Power Ratio: Specifies the power ratio of the carrier and span regions for

calculating OBW. You can set the value from 80 to 99.99%. The default value
is 99%.

 Limits...: Sets the pass/fail limits for the OBW measurement. When pressing

this side key, the measurement limits editor appears. Refer to Editing the
Measurement Limits on page 2-55 for more information.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for information about the scale settings for the display.

ACPR Measurement

1xEV-DO Forward Link Measurements

The ACPR (Adjacent Channel Power Ratio) measurement measures the ratio of
carrier signal power to the signal power in channels specified by limits. Figure 2-14
shows an example of the ACPR measurement.

Figure 2-14: ACPR measurement

Setting the Measurement

Parameters

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-23

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Main Channel Bandwidth: Sets the bandwidth of the main channel.
 Measurement Filter Shape...: S ets the filter to be used for the measurement.

You can select Rect (Rectangular), Gaussian, Nyquist, or Root Nyquist.

 Scroll Table: Scrolls the table displayed in the view.
 Limits: Sets the pass/fail limit for the ACPR measurement. When pressing this

side key, the measurement limits editor appears. Refer to Editing the
Measurement Limits on page 2-55 for more information.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for information about the scale settings for the display.

1xEV-DO Forward Link Measurements

Spectrum Emission Mask Measurement

The spectrum emission mask measurement verifies that the base station is not
transmitting excessive power outside of its designated channel. Since the Option
26 provides the pre-defined measurement limits for each band class, you can
perform pass/fail evaluations easily . Figure 2-15 shows an example of the spectrum
emission mask measurement.

Figure 2-15: Spectrum emission mask measurement

NOTE. When performing this measurement, be sure to apply a continuous active

slot signal or a continuous idle slot signal.

Setting the Measurement

Parameters

2-24 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Slot Type: Selects the slot type to be measured. You can select Active or Idle.

For Active, the total power of the Pilot, MAC, and Data channels is measured.
For Idle, the burst power of the Pilot and MAC channels is measured.

The displayed menu items change depending on which slot type is selected.

1xEV-DO Forward Link Measurements

When Active is selected:

 Measurement...: Sets the limit table used for limit testing. You can select

Offset From Channel or Inband Spurious. For Offset From Channel, frequen cy
zones are specified by the difference from the center frequency. For Inband
Spurious, frequency zones are specified by the absolute frequency values.

 Ref. Channel Select: Selects the reference mode used to measure the spectrum

emission level. You can select Auto or Man (manual). For Auto, the reference
channel level is measured from the input signal for the specified channel
bandwidth. For Man, you can set the reference channel level in the Ref.
Channel Level menu item.

 Ref. Channel Level: Sets the reference channel level used to measure the

spectrum emission level. Y ou can set the value from -150 dBm to 30 dBm. This
setting is only available when Ref. Channel Select is set to Man (manual).

 Channel Bandwidth: Sets the channel bandwidth for the measurement.
 Measurement Filter Shape...: S ets the filter to be used for the measurement.

You can selec t Rect (Rectangular), Gaussian, Nyquist, or Root Nyquist. This
setting is only available when Ref. Channel Select is set to Auto.

 Rolloff Ratio: Enters the rolloff ratio when the Nyquist or Root Nyquist filter

is selected. You can set the value from 0.0001 to 1. The default value is 0.5.
This setting is only available when Ref. Channel Select is set to Auto.

 Limits...: Sets the pass/fail limits for the spectrum emission mask

measurement. When pressing this side key, the measurement limits editor
appears. Refer to Editing the Measurement Limits on page 2-55 for more
information.

 Scroll Table: Scrolls the table displayed in the view.

When Idle is selected:

NOTE. In this measurement, you cannot edit a frequency mask for trigger.

 Measurement...: Sets the limit table used for limit testing. You can select

Offset From Channel or Inband Spurious. For Offset From Channel, frequen cy
zones are specified by the difference from the center frequency. For Inband
Spurious, frequency zones are specified by the absolute frequency values.

 Gate Length: Sets the gate length to be measured. You can set the value from

180 µs to 840 µs.

 Burst Sync...: Sets the burst point to be measured. Y ou can select Rising Edge,

Mid Point, or Trigger Position. This setting is only available when Slot Type
is set to Idle.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-25

1xEV-DO Forward Link Measurements

 Ref. Channel Select: Selects the reference mode used to measure the spectrum

emission level. You can select Auto or Man (manual). For Auto, the reference
channel level is measured from the input signal for the specified channel
bandwidth. For Man, you can set the reference level in the Ref. Channel Level
menu item.

 Ref. Channel Level: Sets the reference channel level used to measure the

spectrum emission level. Y ou can set the value from -150 dBm to 30 dBm. This
setting is only available when Ref. Channel Select is set to Man (manual).

 Analyze: Performs analysis for the time slots in the analysis range.
 Limits...: Sets the pass/fail limits for the spectrum emission mask

measurement. When pressing this side key, the measurement limits editor
appears. Refer to Editing the Measurement Limits on page 2-55 for more
information.

 Scroll Table: Scrolls the table displayed in the view.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for information about the scale settings for the display.

Setting the Timing

Parameters

Display Elements

Changing the View

Contents

When Idle is selected as the slot type, you can set the following timing parameter
using the TIMING menu. Press the TIMING key to open the TIMING menu.

 Acquisition History: Specifies the block number to be analyzed. Block

number “0” corresponds to the latest block.

When Idle is selected as the slot type, the following information is shown in the
spectrum emission measurement display:

 Overview: This view can contain power versus time or spectrogram.
 Main view: This view can contain spectrum.

The display content in the overview can be changed using the VIEW DEFINE
menu. Refer to the next subsection for more information about the VIEW DEFINE
menu.

When Idle is selected as the slot type, you can change the contents in the overview
using the VIEW DEFINE menu. Press the VIEW: DEFINE key to display the
VIEW DEFINE menu.

 Show V iews: Sets the view style on the screen. You can select Single or Multi.
 Overview Content...: Selects a view to display in the overview. You can

select Spectrogram or Waveform (spectrum).

 Menu Off: Hides the side menu. T o display the menu again, press the MENU

side key or VIEW: DEFINE key.

2-26 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Gated Output Power Measurement

The Gated Output power measurement measures the total RF power in a selected
channel. Figure 2-16 shows an example of the gated output power measurement.

1xEV-DO Forward Link Measurements

Display Elements

Setting the Timing

Parameters

Figure 2-16: Gated output power measurement

The following information is shown in the gated output power measurement
display:

 Overview: This view can contain power versus time or spectrogram.
 Subview: This view can contain spectrum.
 Main view: This view can contain power versus time.

The display content in the overview can be changed using the VIEW DEFINE
menu. Refer to Changing the View Contents on page 2-29 for more information
about the VIEW DEFINE menu.

You can set the following timing parameter using the TIMING menu. Press the
TIMING key to open the TIMING menu.

 Acquisition History: Specifies the block number to be analyzed. Block

number “0” corresponds to the latest block.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-27

1xEV-DO Forward Link Measurements

Setting the Measurement

Parameters

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

In the MEAS SETUP menu, you can set the following parameters:

 Analyze: Performs analysis for the time slots in the analysis range.
 Slot Type: Selects the slot type to be measured. You can select Active or Idle.

For Active, the total power of the Pilot, MAC, and Data channels is measured.
For Idle, the burst power of the Pilot and MAC channels is measured.

NOTE. When you select Idle, the trigger souse need to be set to Level. For

information about setting the trigger souse, refer to the WCA230A & WCA2 80 A
Portable Wirele s s Comm unication Analyzers User Manual.

 Burst Sync...: Sets the burst point to be measured. Y ou can select Rising Edge,

Mid Point, or Trigger Position. This setting is only available when Idle is
selected as the slot type.

 Burst Offset: Sets the burst offset between the trigger position and the burst

position for the measurement. You can set the value from -1 ms to 1 ms. This
setting is only available when Burst Sync is set to Trigger Position.

 Ref. Channel Select: Selects the reference mode used to measure the power

level. You can select Auto or Man (manual). For Auto, the reference channel
level is measured from the input signal. For Man, you can set the reference
channel level in the Ref. Channel Level menu item.

 Ref. Channel Level: Sets the reference channel level used to measure the

power level. You can set the value from -150 dBm to 30 dBm. This setting is
only available when Ref.Channel Select is set to Man (manual).

 Limits...: Sets the pass/fail limits for the gated output power measurement.

When pressing this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-55 for more information.

2-28 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Forward Link Measurements

Changing the View

Contents

Scale in the Main View

You can change the contents in the overview using the VIEW DEFINE menu.
Press the VIEW: DEFINE key to display the VIEW DEFINE menu.

 Show V iews: Sets the view style on the screen. You can select Single or Multi.
 Overview Content...: Selects a view to display in the overview. You can

select Spectrogram or Waveform (power versus time).

 Menu Off: Hides the side menu. T o display the menu again, press the MENU

side key or VIEW: DEFINE key.

You can set the scale of the main view using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis to display the

entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis.
 Horizontal Start: Sets the minimum (left) value of the horizontal axis.
 Vertical Scale: Sets the scale of the vertical axis.
 Vertical Stop: Sets the maximum (top) value of the vertical axis.
 Full Scale: Sets the scale of the vertical axis to the default full scale value.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-29

1xEV-DO Forward Link Measurements

Intermodulation Measurement

The intermodulation measurement measures the third-order and fifth-order
harmonic distortion components of a modulated signal. Figure 2-17 shows an
example of the intermodulation measurement.

Figure 2-17: Intermodulation measurement

Setting the Measurement

Parameters

2-30 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 2nd Channel Offset: Sets the center frequency of the second channel where

the interfering carrier exists.

 Main Channel Integration BW: Sets the main channel integration

bandwidth. You can set the value from 500 kHz to 5 MHz.

 Measurement Filter Shape...: S ets the filter to be used for the measurement.

You can select Rect (Rectangular), Gaussian, Nyquist, or Root Nyquist.

 Rolloff Ratio: Enters the rolloff ratio when the Nyquist or Root Nyquist filter

is selected. You can set the value from 0.0001 to 1. The default value is 0.5.

CCDF Measurement

1xEV-DO Forward Link Measurements

 Limits...: Sets the pass/fail limits for the intermodulation measurement. Wh en

pressing this side key , the measurement limits edi tor appears. Refer to Editing
the Measurement Limits on page 2-55 for more information.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for information about the scale settings for the display.

The CCDF (Complementary Cumulative Distribution Function) measurement
displays the peak-to-average power ratio along the horizontal axis, and the
probability that the ratio is exceeded along the vertical axis. This display is useful
in designing digital communications systems. Figure 2-18 shows an example of the
CCDF measurement.

Figure 2-18: CCDF measurement (single view)

Setting the Timing

Parameters

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-31

You can set the following timing parameters using the TIMING menu. Press the
TIMING key to open the TIMING menu.

 Acquisition Length (s): Sets the acquisition length in seconds.

1xEV-DO Forward Link Measurements

 Acquisition History: Specifies the number of the block to display and

analyze. The latest block is number zero. Older blocks have larger negative
numbers.

 Spectrum Length: Display the time length for FFT processing of the spectrum

displayed in the subview. This value is equivalent to one frame acquisition
length.

 Spectrum Offset: Sets the beginning of Spectrum Length with respect to the

left end of the acquisition length.

 Output Trigger Indicator: Selects whether to enable the output trigger

indicator.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for detailed information about the time parameters.

Setting the Measurement

Parameters

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Display Gaussian Line: Selects whether to display the Gaussian line on the

graticule.

 Display Reference Line: Selects whether to display the most recently stored

reference line on the graticule.

 Store Reference Line: Stores a new reference line.
 Reset Measurement: Restart the CCDF measurement. When you press this

key, the CCDF accumulation counter on the upper right side of the display is
reset to 0.

 CCDF Auto-Scaling: Selects whether to automatically set the scaling of the

horizontal axis. When you set it to On, the signal peak value is displayed as the
maximum value on the right edge of the graticule. When you set it to Off, the
scaling of the horizontal axis can be set manually with CCDF Scale. The
default value is Off.

 CCDF Scale: Sets the full-scale value of the horizontal axis of the CCDF

display when CCDF Auto-Scaling is set to Off. Y ou can set the value from 1dB
to 100 dB.

 Threshold: Sets the threshold which defines the samples to be included in the

CCDF calculation. You can set the value from -250 dBm to 130 dBm.

 Limits...: When pressing this side key, the measurement limits editor appears.

Refer to Editing the Measurement Limits on page 2-55 for more information.

2-32 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Forward Link Measurements

Changing the View

Contents

Scale in the Main View

You can change the contents in the overview using the VIEW DEFINE menu.
Press the VIEW: DEFINE key to display the VIEW DEFINE menu.

 Show V iews: Sets the view style on the screen. You can select Single or Multi.

When you set it to Multi, the CCDF, spectrum, and power versus time of the
measured signal are displayed simultaneously.

 Overview Content...: Selects a view to display in the overview. You can

select Spectrogram or Waveform (power versus time).

 Menu Off: Hides the side menu. T o display the menu again, press the MENU

side key or VIEW: DEFINE key.

You can set the scale in the main vie w using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis automatically

to display the entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis.
 Horizontal Start: Sets the minimum (left) value of the horizontal axis.
 Vertical Stop: Sets the maximum (top) the vertical axis. The setting ranges are

twice the Vertical Start value to 100% in a 1-2-5 sequence.

Vertical Stop

Vertical Start

 Vertical Start: Sets the minimum (bottom) value of the vertical axis. The

setting ranges are 10

 Full Scale: Sets the scale of the vertical axis to the default full scale value.
 Sub Grid: Sets whether to display the sub-grid on the graticule.

Horizontal Start

-5

to half the Vertical Stop value in a 1-2-5 sequence.

Horizontal Scale

Figure 2-19: Scale settings in the CCDF display

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-33

1xEV-DO Forward Link Measurements

Pilot to Code Channel Measurement

The pilot to code channel measurement measures the time difference between the
pilot channel and other code channels detected in the received signal. Figure 2-20
shows an example of the pilot to code channel measurement.

Figure 2-20: Pilot to code channel measurement

Display Elements

2-34 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

The following information is shown in the pilot to code channel measurement
display:

 Overview: This view can contain power versus time or spectrogram.
 Subview: This view can contain spectrum, EVM, magnitude error, phase

error, constellation.

 Main view: This view lists the following measurement results for the active

channels:
Power level

Timing referred to the pilot channel
Phase referred to the pilot channel
Code domain error

1xEV-DO Forward Link Measurements

The display content in the subview can be changed using the VIEW DEFINE
menu. Refer to Changing the View Contents on page 2-36 for more information
about the VIEW DEFINE menu.

Setting the Timing

Parameters

You can set the following timing parameters using the TIMING menu. Press the
TIMING key to open the TIMING menu.

 Acquisition Length (chips): Sets the acquisition length in chips. The range

depends on the acquisition memory size and the span setting.

 Acquisition Length (s): Displays the acquisition length in seconds.
 Acquisition History: Specifies the number of the block to display and

analyze. The latest block is number zero. Older blocks have larger negative
numbers.

 Analysis Interval: Sets the analysis interval in half slots. The range depends

on the acquisition length setting.

 Analysis Offset: Sets the start point of the analysis with respect to the left end

of the acquisition length in half slots.

 Spectrum Length: Display the time length for FFT processing of the spectrum

displayed in the subview. This value is equivalent to one frame acquisition
length.

 Spectrum Offset: Sets the beginning of Spectrum Length with respect to the

left end of the acquisition length.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for detailed information about the time parameters.

Setting the Measurement

Parameters

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Analyze: Performs analysis for the time slots in the analysis range.
 Channel Type...: Select the channel type to be measured. You can select

MAC, Data, or Preamble.

 PN Offset: Sets the PN of fset in units of 64 chips. You can set the value from

0 to 511.

 Select HalfSlot: Sets the half slot for the measurement.
 Scroll Table: Scrolls the table displayed in the view.
 Active Channel Threshold: Sets the active channel threshold level (in dB

from the pilot) used for deciding whether a code channel is active or inactive.
You can set the value from -100 dB to 0 dB.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-35

1xEV-DO Forward Link Measurements

 Measurement Filter...: Selects the measurement filter to apply when

calculating pilot to code channel results. You can select None, cdma2000, or
cdma2000+EQ (equalizer).

 IQ Swap: Sets whether to swap the I and Q data streams before demodulation.
 Limits...: Sets the pass/fail limits for the pilot to code channel measurement.

When pressing this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-55 for more information.

Changing the View

Contents

You can change the contents in the overview and subview using the VIEW
DEFINE menu. Press the DEFINE key to display the VIEW DEFINE menu.

 Overview Content...: Selects a view to display in the overview. You can

select Spectrogram or Waveform (power versus time).

 Subview Content...: Selects a view to display in the subview:

 Spectrum: Displays spectrum of the input signal.
 EVM: Displays changes of EVM (Error Vector Magnitude) in symbols.
 MagErr: Displays changes of magnitude error in symbols.
 PhaseErr: Displays changes of phase error in symbols.
 Constellation: Displays the signal as an I-Q constellation.

2-36 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Reverse Link Measurements

This section describes the functions and features of the 1xEV-DO reverse link
measurements. Each measurement description contains general information about
the measurement, descriptions of the measurement displays and functions available
through menu selections.

The information is divided into the following subsections:

 Modulation accuracy measurement
 Code domain power measurement
 Spectrum emission mask measurement
 Pilot to code Channel measurement

The following measurement items available in the 1xEVDO reverse link
measurements are the same as those in the 1xEV-DO forward link measurements.
Refer to 1xEV-DO Forward Link Measurements beginning on page 2-3.

 Channel power measurement
 OBW measurement
 ACPR measurement
 Intermodulation measurement
 CCDF measurement

NOTE. If you are not familiar with the operation of the WCA230A/WCA280A, r efer

to the WCA230A & WCA280A Portable Wireless Communication Analyzers User
Manual before reading this section.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-37

1xEV-DO Reverse Link Measurements

Modulation Accuracy Measurement

The modulation accuracy measurement measures Rho (ration of the correlated
power to the total power), EVM (Error Vector Magnitude), magnitude error, phase
error, frequency error, and origin offset. Figure 2-21 shows an example of the
modulation accuracy measurement.

Figure 2-21: Modulation accuracy measurement-reverse link

Display Elements

2-38 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

The following information is shown in the modulation accuracy measurement
display:

 Overview: This view can contain power versus time or spectrogram.
 Subview: This view can contain spectrum, EVM, magnitude error, phase

error, IQ power graph, and constellation.

 Main view: This view can contain modulation accuracy, EVM, magnitude

error, phase error, and symbol table.

The display contents in each view can be changed using the VIEW DEFINE menu.
Refer to Changing the V iew Contents on page 2-40 for more information about the
VIEW DEFINE menu.

1xEV-DO Reverse Link Measurements

Setting Timing Parameters

You can set the following timing parameters using the TIMING menu. Press the
TIMING key to open the TIMING menu.

 Acquisition Length (chips): Sets the acquisition length in chips. The setting

range depends on the acquisition memory size and the span setting.

 Acquisition Length (s): Displays the acquisition length in seconds.
 Acquisition History: Specifies the number of the block to display and

analyze. The latest block is number zero. Older blocks have larger negative
numbers.

 Analysis Interval: Sets the analysis interval in half slots. The setting range

depends on the acquisition length setting.

 Analysis Offset: Sets the start point of the analysis with respect to the left end

of the acquisition length in half slots.

 Spectrum Length: Display the time length for FFT processing of the spectrum

displayed in the subview. This value is equivalent to one frame acquisition
length.

 Spectrum Offset: Sets the beginning of Spectrum Length with respect to the

left end of the acquisition length.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for detailed information about the timing parameters.

Setting Measurement

Parameters

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Analyze: Performs analysis for the time slots in the analysis range.
 Measurement Level: Selects the measurement level for the measurement.

You can select Chip (chip level) or Symbol (symbol level).

 Select HalfSlot: Sets the half slot for the measurement.
 Select Code: Sets the code in the half slot for the measurement. This setting is

only available when Measurement Level is set to Symbol.

 Longcode Mask I: Sets the long code mask value for the I signal. You can set

the value from 0 to 3FFFFFFFFFF in the hexadecimal format.

 Longcode Mask Q: Sets the long code mask value for the Q signal. You can

set the value from 0 to 3FFFFFFFFFF in the hexadecimal format.

 Active Channel Threshold: Sets the active channel threshold level (in dB

from the pilot) used for deciding whether a code channel is active or inactive.
You can set the value from -100 dB to 0 dB.

 Measurement Filter...: Selects the measurement filter to apply when

calculating EVM and other modulation accuracy results. Y ou can select None,
cdma2000, or cdma2000+EQ (equalizer).

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-39

1xEV-DO Reverse Link Measurements

 IQ Swap: Sets whether to swap the I and Q data streams before demodulation.
 Limits...: Sets the pass/fail limits for the modulation accuracy measurement.

When pressing this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-55 for more information.

Changing the View

Contents

You can change the view contents in the overview, subview, and main view using
the VIEW DEFINE menu. Press the VIEW: DEFINE key to display the VIEW
DEFINE menu.

 Show Views: Selects the view style on the screen. You can sele ct Single or

Multi.

 Overview Content...: Selects a view to display in the overview. You can

select Spectrogram or Waveform (power versus time).

 Subview Content...: Selects a view to display in the subview:

 Spectrum: Displays spectrum of the measured signal.
 EVM: Displays changes of EVM (Error Vector Magnitude) over time.
 MagErr: Displays changes of magnitude error over time.
 PhaseErr: Displays changes of phase error over time.
 IQ Power Graph: Displays changes of I and Q powers over time. Refer

to IQ Power Graph Display on page 2-19.

 Constellation: Displays the signal as an I-Q constellation.

 Mainview Content...: Selects a view to display in the main view. You can

select Modulation Accuracy, EVM, MagErr , PhaseErr , or Symbol T able. Refer
to Scale and Format in the Main V iew on page 2-41 for more information about
the views.

 Menu Off: Hides the side menu. T o display the menu again, press the MENU

side key or VIEW: DEFINE key.

2-40 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Reverse Link Measurements

Scale and Format in the

Main View

1: second half slot

ACK or NACK indicator

This subsection describes the scale settings and display format in the main view.

Modulation Accuracy Display. When you select Mainview Content from the VIEW
DEFINE menu and then select Modulation Accuracy from the Mainview Content
submenu, an IQ rectangular graph and the measured value for Rho, peak code
domain error, rms and peak EVM, magnitude error, phase error, frequency error,
and IQ origin offset (see Figure 2-22). The peak code domain error is displayed
only when the Measurement Level menu item is set to Symbol.

Half slot number

0: first half slot

DRC code value

IQ rectangular graph

(vector display)

DRC value

Figure 2-22: Modulation accuracy display-reverse link

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Measurement Content...: Selects vector or constellation display.

Vector: Selects vector display . A signal represented with phase and amplitude
is displayed in rectangular (I and Q) coordinates. The red point indicates the
symbol position on the measured signal, and the yellow trace indicates the
locus of signal between symbols.

Constellation: Selects constellation display. It is the same as the vector
display, except that only symbols of the measured signal are indicated in red,
and the locus between symbols is not shown. The cross marks indicate symbol

positions of an ideal signal.

NOTE. I and Q signals are normalized to prevent the scale from changing when

signal attenuation changes.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-41

1xEV-DO Reverse Link Measurements

EVM Display. When you select Mainview Content from the VIEW DEFINE menu
and then select EVM from the Mainview Content submenu, changes of EVM
(Error Vector Magnitude) over time are displayed for each chip or symbol
(see Figure 2-23).

Chip number

Vertical Scale

Vertical Start

Horizontal Scale

Horizontal Start

Figure 2-23: EVM display-reverse link

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis to display the

entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis (number of chips or

symbols).

 Horizontal Start: Sets the chip number or symbol number of the first (left)

value of the horizontal axis.

 Vertical Scale: Sets the scale of the vertical axis.
 Vertical Start: Sets the minimum (bottom) value of the vertical axis.
 Full Scale: Sets the scale of vertical axis to the default full-scale value.
 Measurement Content...: Selects the display content in the main view. You

can select EVM, MagError, or PhaseError. This selection can also be made
from Mainview Content in the VIEW DEFINE menu.

2-42 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Reverse Link Measurements

MagErr Display. When you select Mainview Content from the VIEW DEFINE
menu and then select MagErr from the Mainview Content submenu, changes of
magnitude error over time are displayed for each chip or symbol (see
Figure 2-24).

Chip number

Vertical Scale

Horizontal Scale

Horizontal Start

Figure 2-24: MagErr display-reverse link

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis automatically

to display the entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis (number of chips or

symbols).

 Horizontal Start: Sets the chip number or symbol number of the first (left)

value of the horizontal axis.

 Vertical Scale: Sets the scale of the vertical axis.
 Vertical Offset: Sets the offset value of the vertical axis. Y ou can set the value

from -200% to 200%.

 Full Scale: Sets the scale of vertical axis to the default full-scale value.
 Measurement Content...: Selects the display content in the main view. You

can select EVM, MagError, or PhaseError. This selection can also be made
from Mainview Content in the VIEW DEFINE menu.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-43

1xEV-DO Reverse Link Measurements

PhaseErr Display. When you select Mainview Content from the VIEW DEFINE
menu and then select PhaseErr from the Mainview Content submenu, changes of
phase error over time are displayed for each chip or symbol (see Figure 2-25).

Chip number

Vertical Scale

Horizontal Scale

Horizontal Start

Figure 2-25: PhaseErr display-reverse link

You can set the scale of the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Auto Scale: Sets the start value and the scale of the vertical axis to display the

entire waveform.

 Horizontal Scale: Sets the scale of the horizontal axis (number of chips or

symbols).

 Horizontal Start: Sets the chip number or symbol number of the first (left)

value of the horizontal axis.

 Vertical Scale: Sets the scale of the vertical axis.
 Vertical Offset: Sets the offset value of the vertical axis. Y ou can set the value

from -450 to 450 degrees.

 Full Scale: Sets the scale of vertical axis to the default full-scale value.
 Measurement Content...: Selects the display content in the main view. You

can select EVM, MagError, or PhaseError. This selection can also be made
from Mainview Content in the VIEW DEFINE menu.

2-44 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Reverse Link Measurements

Symbol Table Display. When you select Mainview Content from the VIEW
DEFINE menu and then select Symbol Table from the Mainview Content
submenu, the symbol table is displayed (see Figure 2-26). This display is only
available when the Measurement Level menu item is set to Symbol.

Symbol number

Code length and Channel number

Figure 2-26: Symbol table display-reverse link

You can set the radix for the display using the VIEW SCALE menu. Press the
SCALE key to open the menu.

 Radix...: Sets the radix for displaying the table. You can select Hex

(hexadecimal), Oct (octal), or Bin (binary).

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-45

1xEV-DO Reverse Link Measurements

Code Domain Power Measurement

The code domain power measurement measures the distribution of signal power
across the set of code channels, normalized to the total signal power. This
measurement allows you to verify that each code channel is operating at its proper
level. Figure 2-27 shows an example of the code domain power measurement.

Figure 2-27: Code domain power measurement-reverse link

Display Elements

2-46 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

The following information is shown in the code domain power measurement
display:

 Overview: This view can contain power versus time or spectrogram.
 Subview: This view can contain spectrum, EVM, magnitude error, phase

error, IQ power graph, and constellation .

 Main view: This view can contain code domain power , power codogram, and

IQ power graph.

The display contents in each view can be changed using the VIEW DEFINE menu.
Refer to Changing the V iew Co ntents on page 2-48 for more information about the
VIEW DEFINE menu.

1xEV-DO Reverse Link Measurements

Setting Timing Parameters

You can set the following timing parameters using the TIMING menu. Press the
TIMING key to open the TIMING menu.

 Acquisition Length (chips): Sets the acquisition length in chips. The setting

range depends on the acquisition memory size and the span setting.

 Acquisition Length (s): Displays the acquisition length in seconds.
 Acquisition History: Specifies the number of the block to display and

analyze. The latest block is number zero. Older blocks have larger negative
numbers.

 Analysis Interval: Sets the analysis interval in half slots. The setting range

depends on the acquisition length setting.

 Analysis Offset: Sets the start point of the analysis with respect to the left end

of the acquisition length in half slots.

 Spectrum Length: Displays the time length for FFT processing of the

spectrum displayed in the subview. This value is equivalent to one frame
acquisition length.

 Spectrum Offset: Sets the beginning of Spectrum Length with respect to the

left end of the acquisition length.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for detailed information about the timing parameters.

Setting Measurement

Parameters

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Analyze: Performs analysis for the time slots in the analysis range.
 Measurement Level: Selects the measurement level for the measurement.

Y o u can select Chip (chip level) or Symbol (symbol level). This setting is only
available when Mainview Content in the VIEW DEFINE menu is set to IQ
Power Graph.

 Select HalfSlot: Sets the half slot for the measurement.
 Select Code: Sets the code in the half slot for the measurement.
 Longcode Mask I: Sets the long code mask value for the I signal. You can set

the value from 0 to 3FFFFFFFFFF in the hexadecimal format.

 Longcode Mask Q: Sets the long code mask value for the Q signal. You can

set the value from 0 to 3FFFFFFFFFF in the hexadecimal format.

 Active Channel Threshold: Sets the active channel threshold level (in dB

from the pilot) used for deciding whether a code channel is active or inactive.
You can set the value from -100 dB to 0 dB

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-47

1xEV-DO Reverse Link Measurements

 Measurement Filter...: Selects the measurement filter to apply when

calculating code domain power results. You can select None, cdma2000, or
cdma2000+EQ (equalizer).

 IQ Swap: Sets whether to swap the I and Q data streams before demodulation.
 Limits...: Sets the pass/fail limits for the code domain power measurement.

When pressing this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-55 for more information.

Changing the View

Contents

You can change the contents in the overview, subview, and main view using the
VIEW DEFINE menu. Press the VIEW: DEFINE key to display the VIEW
DEFINE menu.

 Show Views: Selects the view style on the screen. You can sele ct Single or

Multi.

 Overview Content...: Selects a view to display in the overview. You can

select Spectrogram or Waveform (power versus time).

 Subview Content...: Selects a view to display in the subview:

 Spectrum: Displays spectrum of the input signal.
 EVM: Displays changes of EVM (Error Vector Magnitude) over time.
 MagErr: Displays changes of magnitude error over time.
 PhaseErr: Displays changes of phase error over time.
 IQ Power Graph: Displays the code domain power for each symbol.

Refer to IQ Power Graph Display on page 2-19.

 Constellation: Displays the signal as an I-Q constellation.

 Mainview Content...: Selects a view to display in the main view. You can

select Code Domain Power, Power Codogram, or IQ Power Graph. Refer to
Scale and Format in the Main View on page 2-15 for more information about

the views.

 Code Order...: Sets the way that code channels are arranged on the display.

You can select Hada mard or BitReverse.

 Menu Off: Hides the side menu. T o display the menu again, press the MENU

side key or VIEW: DEFINE key.

2-48 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Spectrum Emission Mask Measurement

The spectrum emission mask measurement verifies that the base station is not
transmitting excessive power outside of its designated channel. Since the Option
26 provides the pre-defined measurement limits for each band class, you can
perform pass/fail evaluations easily. Figure 2-28 shows an example of the spectrum
emission mask measurement.

1xEV-DO Reverse Link Measurements

Figure 2-28: Spectrum emission mask measurement-reverse link

Setting the Measurement

Parameters

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-49

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Measurement...: Sets the limit table used for limit testing. You can select

Offset From Channel or Inband Spurious. For Offset From Channel, frequen cy
zones are specified by the difference from the center frequency. For Inband
Spurious, frequency zones are specified by the absolute frequency values.

 Ref. Channel Select: Selects the reference mode used to measure the spectrum

emission level. You can select Auto or Man (manual). For Auto, the reference
channel level is measured from the input signal for the specified channel
bandwidth. For Man, you can set the reference channel level in the Ref.
Channel Level menu item.

1xEV-DO Reverse Link Measurements

 Ref. Channel Level: Sets the reference channel level used to measure the

spectrum emission level. Y ou can set the value from -150 dBm to 30 dBm. This
setting is only available when Ref. Channel Select is set to Man (manual).

 Channel Bandwidth: Sets the channel bandwidth for the measurement.
 Measurement Filter Shape...: S ets the filter to be used for the measurement.

You can selec t Rect (Rectangular), Gaussian, Nyquist, or Root Nyquist. This
setting is only available when Ref. Channel Select is set to Auto.

 Rolloff Ratio: Enters the rolloff ratio when the Nyquist or Root Nyquist filter

is selected. You can set the value from 0.0001 to 1. The default value is 0.5.
This setting is only available when Ref. Channel Select is set to Auto.

 Limits...: Sets the pass/fail limits for the spectrum emission mask

measurement. When pressing this side key, the measurement limits editor
appears. Refer to Editing the Measurement Limits on page 2-55 for more
information.

 Scroll Table: Scrolls the table displayed in the view.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for information about the scale settings for the display.

2-50 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Pilot to Code Channel Measurement

The pilot to code channel measurement measures the time difference between the
pilot channel and other code channels detected in the received signal. Figure 2-29
shows an example of the pilot to code channel measurement.

1xEV-DO Reverse Link Measurements

Figure 2-29: Pilot to code channel measurem ent-reverse link

Display Elements

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-51

The following information is shown in the modulation accuracy measurement
display:

 Overview: This view can contain power versus time.
 Subview: This view can contain spectrum, EVM, magnitude error, phase

error, constellation.

 Main view: This view lists the following measurement results for the active

channels:
Power level

Timing referred to the pilot channel
Phase referred to the pilot channel
Code domain error

1xEV-DO Reverse Link Measurements

The display content in the subview can be changed using the VIEW DEFINE
menu. Refer to Changing the View Contents on page 2-53 for more information
about the VIEW DEFINE menu.

Setting Timing Parameters

You can set the following timing parameters using the TIMING menu. Press the
TIMING key to open the TIMING menu.

 Acquisition Length (chips): Sets the acquisition length in chips. The setting

range depends on the acquisition memory size and the span setting.

 Acquisition Length (s): Displays the acquisition length in seconds.
 Acquisition History: Specifies the number of the block to display and

analyze. The latest block is number zero. Older blocks have larger negative
numbers.

 Analysis Interval: Sets the analysis interval in half slots. The setting range

depends on the acquisition length setting.

 Analysis Offset: Sets the start point of the analysis with respect to the left end

of the acquisition length in half slots.

 Spectrum Length: Display the time length for FFT processing of the spectrum

displayed in the subview. This value is equivalent to one frame acquisition
length.

 Spectrum Offset: Sets the beginning of Spectrum Length with respect to the

left end of the acquisition length.

NOTE. Refer to the WCA230A & WCA280A Portable Wireless Communication

Analyzers User Manual for detailed information about the time parameters.

Setting Measurement

Parameters

You can set the following measurement parameters using the MEAS SETUP
menu. Press the MEAS SETUP key to open the MEAS SETUP menu.

 Analyze: Performs analysis for the time slots in the analysis range.
 Select HalfSlot: Sets the half slot for the measurement.
 Select Code: Sets the code in the half slot for the measurement.
 Longcode Mask I: Sets the long code mask value for the I signal. You can set

the value from 0 to 3FFFFFFFFFF in the hexadecimal format.

 Longcode Mask Q: Sets the long code mask value for the Q signal. You can

set the value from 0 to 3FFFFFFFFFF in the hexadecimal format.

 Active Channel Threshold: Sets the active channel threshold level (in dB

from the pilot) used for deciding whether a code channel is active or inactive.
You can set the value from -100 dB to 0 dB.

2-52 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

1xEV-DO Reverse Link Measurements

 Measurement Filter...: Selects the measurement filter to apply when

calculating EVM and other modulation accuracy results. Y ou can select None,
cdma2000, or cdma2000+EQ (equalizer).

 IQ Swap: Sets whether to swap the I and Q data streams before demodulation.
 Limits...: Sets the pass/fail limits for the pilot to code channel measurement.

When you press this side key , the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-55 for more information.

Changing the View

Contents

You can change the contents in the overview and subview using the VIEW
DEFINE menu. Press the VIEW: DEFINE key to display the VIEW DEFINE
menu.

 Overview Content...: Selects a view to display in the overview. You can

select Spectrogram or Waveform (power versus time).

 Subview Content...: Selects a view to display in the subview:

 Spectrum: Displays spectrum of the input signal.
 EVM: Displays changes of EVM (Error Vector Magnitude) over time.
 MagErr: Displays changes of magnitude error over time.
 PhaseErr: Displays changes of phase error over time.
 Constellation: Displays the signal as an I-Q constellation.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-53

1xEV-DO Reverse Link Measurements

2-54 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Editing the Measurement Limits

This section describes how to set measurement limits that can be used to perform
pass/fail testing for the 1xEV-DO measurements.

Refer to Measurement Limit Defaults on page 2-65 for information about the
default settings of each measurement limit.

Using the Measurement Limits Editor

All of the measurement limits are set in the measurement limits editor, which you
access from the Limits... side key on the MEAS SETUP menu.

Figure 2-30 shows the measurement limits editor for the 1xEV-DO forward link
measurements.

Figure 2-30: Measurement limits editor

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-55

Editing the Measurement Limits

Table 2-1 describes all of the measurement limit items available in the
measurement limits editor.

Table 2-1: Measurement limits items

Limit item Description Lower limit range Upper limit range

Channel power Sets the lower and upper limits for the Channel

Power measurement.

ACPR Select this item to access another measurement

limits editor to edit ACPR Limits.

Intermod 3rd Order Sets the upper limit of the third harmonic distortion

component for the Intermodulation measurement.

Intermod 5th Order Sets the upper limit of the fifth harmonic distortion

component for the Intermodulation measurement.

SEM Offset From Channel Select this item to access another measurement

limits editor to edit SEM offset from channel limits.

SEM Inband Spurious Select this item to access another measurement

limits editor to edit SEM inband spurious limits.

RMS EVM Sets the upper limit for the RMS EVM measurement. Not settable 0 to 100%

Sets the upper limit for the Peak EVM

Peak EVM
Peak Code Domain Error Sets the upper limit for the Peak code domain error

Rho Sets the lower limit of Rho for the modulation

Pilot To Code Timing Sets the upper limit for the pilot to code timing

Pilot To Code Phase Sets the lower and upper limits for the pilot to code

OBW Sets the upper and lower limits for the OBW

Tau Sets the lower limit of Tau for the modulation

Gated Output Power (Idle)

Gated Output Power (Active)

* These items are only available in the 1xEV-DO forward link measurements.

measurement. Not settable 0 to 100%

measurement.

accuracy measurement.

measurement.

phase measurement.

measurement.

accuracy measurement.

*

Select this item to access another measurement
limits editor to edit gated output power limits.

*

Select this item to access another measurement
limits editor to edit gated output power limits.

-200 to 200 dBm -200 to 200 dBm

------------------ ------------------

Not settable -200 to 200 dBc

Not settable -200 to 200 dBc

------------------ ------------------

------------------ ------------------

Not settable -200 to 200 dB

0 to 1 Not settable

-1 to 1 s -1 to 1 s

-100 to 100 degree -100 to 100 degree

0 to 30 MHz 0 to 30 MHz

0 to 1 s Not settable

------------------ ------------------

------------------ ------------------

2-56 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Editing the Measurement Limits

Setting a Measurement

Limit

Perform the following procedure to set measurement limits:

1. Press the MEAS SETUP menu key to open the MEAS SETUP menu.

2. Press the Limits... side key to open the measurement limits editor with

LIMITS menu.

3. Press the Select row to edit side key.

4. Turn the rotary knob or press the arrow keys to select the row that you want to

edit.

5. Press the Enable Limit side key to enable or disable the pass/fail testing for

the specified limit(s).

6. Press the Lower Limit side key to set the lower limit for the selected

measurement item, if applicable.

7. Press the Upper Limit side key to set the upper limit for the selected

measurement item.

When you want to set limits for the spectrum emission mask or gated output power
measurement, perform the following steps to open another measurement limits
editor:

1. Press the Select row to edit side key.

2. Turn the rotary knob or press the arrow keys to select ACPR, SEM Offset
From Channel, SEM Inband Spurious, Gated Output Power (Idle), or
Gated Output Power (Active) row.

3. Press the Edit ACPR Limits..., Edit SEM Offset Limits..., Edit SEM
Inband Limits..., Edit Gated Output Power (Idle) Limits..., or Edit Gated
Output Power (Active) Limits... side key. This opens the limits editor to set

more complex limits for the ACPR, spectrum emission mask, or gated output
power measurement. Figure 2-32 shows the measurement limits editor for the
ACPR measurement.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-57

Editing the Measurement Limits

Setting the ACPR Limits

When you select the ACPR row in the measurement limits editor, another
measurement limits editor for the ACPR measurement is displayed. Figure 2-31
shows the measurement limits editor for the ACPR measurement.

Figure 2-31: ACPR measurement limits editor

Table 2-2 lists the measurement limit items that can be set in the measurement
limits editor.

Table 2-2: Measurement limit items for the ACPR measurement

Item Description Limit ranges

Enable Enables or disables use of the limits in the specified zone (A to L). ------------------­Frequency Sets the frequency offset for the zone. -3 to 3 GHz (WCA230A)

-8 to 8 GHz (WCA280A)

Measurement BW Sets the measurement bandwidth for the zone. -3 to 3 GHz (WCA230A)

-8 to 8 GHz (WCA280A)
Limit (Abs) Sets an absolute level limit for the zone. -200 to 200 dBm
Limit (Rel) Sets a relative level limit for the zone. -200 to 200 dBc

2-58 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Editing the Measurement Limits

Table 2-2: Measurement limit items for the ACPR measurement (cont.)

Item Description Limit ranges

Failure Mode Selects the fail mode to detect fail conditions between the measurement results and

the test limits. The choices are:

 Absolute: Fail is detected when the absolute measurement result is larger than

the limit for Limit (Abs).

 Relative: Fail is detected when the relative measurement result is larger than the

limit for Limit (Rel).

-------------------

Perform the following steps to set measurement limits in the limits editor:

1. Press the Select column to edit side key.

2. Turn the rotary knob or press the arrow keys to select the column that you want

to edit.

3. Press the Enable side key to enable or disable use of the limits for the zone.

4. Press the side key corresponding to the limit item, and then use the rotary knob

or arrow keys to set the value.

5. Press the Failure Mode... side key to select the failure mode.

6. Press the Default limits to... side key if you want to use a given measurement

limit for the measurement. Refer to Measurement Limit Defaults on page 2-65
for information about the default settings of each measurement limit.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-59

Editing the Measurement Limits

Setting the Spectrum

Emission Mask Limits

When you select the SEM Offset From Channel or SEM Inband Spurious row in
the measurement limits editor, another measurement limits editor for the spectrum
emission mask measurement is displayed. Figure 2-32 shows the measurement
limits editor for the spectrum emission mask measurement.

Figure 2-32: Spectrum emission mask measurement limits editor

Table 2-3 lists the measurement limit items that can be set in the measurement
limits editor.

Table 2-3: Measurement limit items for the spectrum emission mask measurement

Item Description Limit ranges

Enable Enables or disables use of the mask in the specified zone (A, B, C, D, or E). ------------------­Beginning Frequency Sets the beginning frequency for the zone. -3 to 3 GHz (WCA230A)

-8 to 8 GHz (WCA280A)
Ending Frequency Sets the ending frequency for the zone. -3 to 3 GHz (WCA230A)

-8 to 8 GHz (WCA280A)
Measurement

Bandwidth
Offset from Carrier* Specifies which offset side is to be measured. Y ou can select Upper (positive), Lower

Sets the measurement bandwidth. -3 to 3 GHz (WCA230A)

-8 to 8 GHz (WCA280A)

-------------------

(negative), or Both.

2-60 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Editing the Measurement Limits

Table 2-3: Measurement limit items for the spectrum emission mask measurement (cont.)

Item Description Limit ranges

Fail if signal exceeds Selects the fail mode to detect fail conditions between the measurement results and

the test limits. The choices are:

-------------------

 Absolute: Fail is detected when one of the absolute measurement results is

larger than the limit for Beginning Absolute Limit and/or Ending Absolute Limit.

 Relative: Fail is detected when one of the relative measurement results is larger

than the limit for Beginning Relative Limit and/or Ending Relative Limit.

 Rel OR Abs: Fail is detected when one of the absolute measurement results is

larger than the limit for Beginning Absolute Limit and Ending Absolute Limit OR
one of the relative measurement results is larger than the limit for Beginning
Relative Limit and Ending Relative Limit.

 Rel AND Abs: Fail is detected when one of the absolute measurement results is

larger than the limit for Beginning Absolute Limit and Ending Absolute Limit AND
one of the relative measurement results is larger than the limit for Beginning
Relative Limit and Ending Relative Limit.

Beginning Absolute
Limit

Ending Absolute Limit Sets an absolute level limit at Ending Frequency. -200 to 200 dBm
Beginning Relative

Limit
Ending Relative Limit Sets a relative level limit at Ending Frequency. -200 to 200 dBc

* This item is only available when SEM Offset From Channel is selected.

Sets an absolute level limit at Beginning Frequency. -200 to 200 dBm

Sets a relative level limit at Beginning Frequency. -200 to 200 dBc

Perform the following steps to set measurement limits in the limits editor:

1. Press the Select column to edit side key.

2. Turn the rotary knob or press the arrow keys to select the column that you want

to edit.

3. Press the Enable side key to enable or disable use of the limits for the zone.

4. Press the side key corresponding to the limit item, and then use the rotary knob

or arrow keys to set the value.

5. Press the Default limits to... side key if you want to use a given measurement

limit for the measurement. Refer to Measurement Limit Defaults on page 2-65
for information about the default settings of each measurement limit.

6. When you press the Rescale Graph side key, the graph is rescaled to match

the set limits.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-61

Editing the Measurement Limits

Setting the Gated Output

Power Limits

When you select the Gated Output Power (Idle) row or Gated Output Power
(Active) row in the measurement limits editor, another measurement limits editor
for the gated output power measurement is displayed. Figure 2-33 shows the
measurement limits editor for the gated output power measurement.

Figure 2-33: Gated output power measurement limits editor

Table 2-4 lists the measurement limit items that can be set in the measurement
limits editor.

Table 2-4: Measurement limit items for the gated output power measurement

Item Description Limit ranges

Enable Enables or disables use of the mask in the specified zone (A, B, C, D, or E). ------------------­Beginning Time Offset Sets the beginning time from the center of the zone. -10 to 10 s
Ending Time Offset Sets the ending time from the center of the zone. -10 to 10 s
Limit Type Sets the limit type for the measurement. You can select Upper (upper limit) or Lower

(lower limits).

Offset Side Specifies which offset side is to be measured. You can select Upper (positive), Lower

(negative), or Both.

-------------------

-------------------

2-62 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Editing the Measurement Limits

Table 2-4: Measurement limit items for the gated output power measurement (cont.)

Item Description Limit ranges

Fail if signal exceeds Selects the fail mode to detect fail conditions between the measurement results and

the test limits. The choices are:

-------------------

 Absolute: Fail is detected when one of the absolute measurement results is

larger than the limit for Beginning Absolute Limit and/or Ending Absolute Limit.

 Relative: Fail is detected when one of the relative measurement results is larger

than the limit for Beginning Relative Limit and/or Ending Relative Limit.

 Rel OR Abs: Fail is detected when one of the absolute measurement results is

larger than the limit for Beginning Absolute Limit and Ending Absolute Limit OR
one of the relative measurement results is larger than the limit for Beginning
Relative Limit and Ending Relative Limit.

 Rel AND Abs: Fail is detected when one of the absolute measurement results is

larger than the limit for Beginning Absolute Limit and Ending Absolute Limit AND
one of the relative measurement results is larger than the limit for Beginning
Relative Limit and Ending Relative Limit.

Beginning Absolute
Limit

Ending Absolute Limit Sets an absolute level limit at Ending Time Offset. -200 to 200 dBm
Beginning Relative

Limit
Ending Relative Limit Sets a relative level limit at Ending Time Offset. -200 to 200 dB

Sets an absolute level limit at Beginning Time Offset. -200 to 200 dBm

Sets a relative level limit at Beginning Time Offset. -200 to 200 dB

Perform the following steps to set measurement limits in the limits editor:

1. Press the Select column to edit side key.

2. Turn the rotary knob or press the arrow keys to select the column that you want

to edit.

3. Press the Enable side key to enable or disable use of the limits for the zone.

4. Press the side key corresponding to the limit item, and then use the rotary knob

or arrow keys to set the value.

5. Press the Default limits to... side key if you want to use a given measurement

limits for the measurement. Refer to Measurement Limit Defaults on page 2-65
for information about the default settings of each measurement limit.

6. When you press the Rescale Graph side key, the graph is rescaled to match the

set limits.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-63

Editing the Measurement Limits

Saving and Loading Measurement Limits

Measurement limits that set in the measurement limits editor can be saved as a file
and loaded from a file. This section describes how to save and load measurement
limits.

Refer to the WCA230A & WCA280A Portable W ir eless Communication Analyzers
User Manual, for further information about file operation including how to enter a
file name and how to delete a file.

Saving Measurement

Limits

Loading Measurement

Limits

Perform the following steps to save the current measurement limits to a file:

1. When you open the spectrum emission mask measurement limits editor or
gated output power measurement limits editor, press the Cancel-Back

(MENU) side key to return the measurement limit editor (see Figure 2-30).

2. Press the Save Limits side key to open the Save to File menu.

You can save the limits by using the preset file name or by entering a new file
name.

3. To use the preset file name, press one of the following side keys: Save to
LimitsA, Save to LimitsB, or Save to LimitsC.

4. T o enter a new file name, type a file name in the text box at the top of the menu,

and then press the Save File Now side key .

The file extension *.lmt is automatically added to the limits file.

Perform the following steps to load measurement limits from a file:

1. When you open the spectrum emission mask measurement limits editor or
gated output power measurement limits editor, press the Cancel-Back

(MENU) side key to return the measurement limit editor (see Figure 2-30).

2. Press the Load Limits side key to open the Load From File menu.

3. T o load limits from the preset file, press one of the follo wing side keys: Load
from LimitsA, Load from LimitsB, or Load from LimitsC.

4. To load limits from an existing file, select the file from the file list, and then
press the Load File Now side key.

2-64 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Measurement Limit Defaults

T a bles 2-5 through 2-21 list the default limit settings used to perform the pass/file
testing for the 1xEV-DO measurements. Refer to Using the Measurement Limits
Editor on page 2-55 for procedures to edit the measurement limits.

Editing the Measurement Limits

Common Limits

Tables 2-5 and 2-6 list the common measurement limits that can be used for the
measurements other than the ACPR, Spectrum Emission Mask and Gated Output
Power measurements.

Table 2-5: Forward link common limits

Limit Enable Lower Upper Units

Channel Power No -150 30 dBm
Intermod 3rd Order Yes N.A -20 dBc
Intermod 5th Order Yes N.A -40 dBc
RMS EVM No N.A 10 percent
Peak EVM No N.A 31 percent
Peak Code Domain Error No N.A 0.4 dB
Rho Yes 0.912 N.A N.A
Pilot To Code Timing Yes -50 n 50 n s
Pilot To Code Phase Yes -0.15 0.15 radian
OBW Yes N.A 1.48 M Hz
Tau Yes N.A 0.00001 s

Table 2-6: Reverse link common limits

Limit Enable Lower Upper Units

Channel Power No -150 30 dBm
Intermod 3rd Order Yes N.A -18 dBc
Intermod 5th Order Yes N.A -36 dBc
RMS EVM No N.A 10 percent
Peak EVM No N.A 24 percent
Peak Code Domain Error No N.A 0.25 dB
Rho Yes 0.994 N.A N.A
Pilot To Code Timing Yes -10 n 10 n s
Pilot To Code Phase Yes -0.15 0.15 radian
OBW Yes N.A 1.48 M Hz

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-65

Editing the Measurement Limits

ACPR Limits

T able 2-7 list the measurement limits that can be used for the ACPR measurement.

Ta ble2-7: Forward and reverse link: all band classes

Zone Enable Frequency Measure BW Limit (Abs) Limit (Rel) Fail Mode

A Yes 750 kHz 30 kHz -27 dBm -45 dBc Relative
B Yes -750 kHz 30 kHz -27 dBm -45 dBc Relative
C Yes 1.995 MHz 30 kHz -27 dBm -55 dBc Relative
D Yes -1.995 MHz 30 kHz -27 dBm -55 dBc Relative
E Yes 3.125 MHz 30 kHz -13 dBm -55 dBc Relative
F No -3.125 MHz 30 kHz -13 dBm -55 dBc Relative
G No 4 MHz 30 kHz -13 dBm -55 dBc Relative
H No -4 MHz 30 kHz -13 dBm -55 dBc Relative
I No 7.5 MHz 30 kHz -13 dBm -55 dBc Relative
J No -7.5 MHz 30 kHz -13 dBm -55 dBc Relative
K No 0 Hz 30 kHz -13 dBm -55 dBc Relative
L No 0 Hz 30 kHz -13 dBm -55 dBc Relative

SEM Offset from Channel

Limits

Tables 2-8 through 2-16 list the measurement limits that can be used for the SEM
Offset From Channel measurement.

Table 2-8: Forward link: BC (band class) 0, 2, 3, 5, and 9

Zone ABCDE

Enable Yes Yes Yes No No
Start Frequency 750 kHz 1.98 MHz 4 MHz 4 MHz 20 MHz
Stop Frequency 1.98 MHz 4.00 MHz 20 MHz 3 GHz 8 GHz
Measurement BW 30 kHz 30 kHz 1 MHz 1 MHz 1 MHz
Offset Side Both Both Both Both Both
Failure Mode Relative Rel OR Abs Absolute Absolute Absolute
Absolute Start 30 dBm -27 dBm -36 dBm -13 dBm -13 dBm
Absolute Stop 30 dBm -27 dBm -36 dBm -13 dBm -13 dBm
Relative Start -45 dBc -55 dBc 0 dBc 0 dBc 0 dBc
Relative Stop -45 dBc -55 dBc 0 dBc 0 dBc 0 dBc

2-66 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Editing the Measurement Limits

Table 2-9: Forward link: BC (band class) 1, 4, and 8

Zone ABCDE

Enable Yes Yes Yes Yes No
Start Frequency 885 kHz 1.25 MHz 2.25 MHz 4 MHz 4 MHz
Stop Frequency 1.25 MHz 2.25 MHz 4 MHz 20 MHz 3 GHz
Measurement BW 30 kHz 30 kHz 1 MHz 1 MHz 1 MHz
Offset Side Both Both Both Both Both
Failure Mode Relative Rel OR Abs Absolute Absolute Absolute
Absolute Start 30 dBm -9 dBm -13 dBm -36 dBm -13 dBm
Absolute Stop 30 dBm -9 dBm -13 dBm -36 dBm -13 dBm
Relative Start -45 dBc -45 dBc 0 dBc 0 dBc 0 dBc
Relative Stop -45 dBc -45 dBc 0 dBc 0 dBc 0 dBc

Table2-10: Forward link: BC (band class) 3b

Zone ABCDE

Enable Yes Yes Yes No No
Start Frequency 750 kHz 1.98 MHz 4 MHz 4 MHz 20 MHz
Stop Frequency 1.98 MHz 4 MHz 20 MHz 3 MHz 8 GHz
Measurement BW 30 kHz 30 kHz 1 MHz 1 MHz 1 MHz
Offset Side Both Both Both Both Both
Failure Mode Relative Relative Absolute Absolute Absolute
Absolute Start 30 dBm -27 dBm -36 dBm -13 dBm -13 dBm
Absolute Stop 30 dBm -27 dBm -36 dBm -13 dBm -13 dBm
Relative Start -45 dBc -60 dBc 0 dBc 0 dBc 0 dBc
Relative Stop -45 dBc -60 dBc 0 dBc 0 dBc 0 dBc

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-67

Editing the Measurement Limits

Table 2-11: Forward link: BC (band class) 6

Zone ABCDE

Enable Yes Yes Yes Yes Yes
Start Frequency 885 kHz 1.25 MHz 1.45 MHz 2.25 MHz 4 MHz
Stop Frequency 1.25 MHz 1.45 MHz 2.25 MHz 4 MHz 20 MHz
Measurement BW 30 kHz 30 kHz 30 kHz 1 MHz 1 MHz
Offset Side Both Both Both Both Both
Failure Mode Relative Rel OR Abs Rel OR Abs Absolute Absolute
Absolute Start 30 dBm -13 dBm -13 dBm -13 dBm -36 dBm
Absolute Stop 30 dBm -13 dBm -26.6 dBm
Relative Start -45 dBc -45 dBc -45 dBc 0 dBc 0 dBc
Relative Stop -45 dBc -45 dBc -45 dBc 0 dBc 0 dBc

1 Based on -[13+17x( ∆f-1.45 MHz)] dBm when ∆f is 2.25 MHz.

1

-13 dBm -36 dBm

Table2-12: Forward link: BC (band class) 7

Zone ABCDE

Enable Yes Yes Yes Yes Yes
Start Frequency 750 kHz 1.98 MHz 3.25 MHz 4 MHz 4 MHz
Stop Frequency 1.98 MHz 3.25 MHz 4 MHz 20 MHz 20 MHz
Measurement BW 30 kHz 30 kHz 30 kHz 1 MHz 1 MHz
Offset Side Both Both Both Both Both
Failure Mode Relative Rel OR Abs Rel OR Abs Absolute Absolute
Absolute Start 30 dBm -27 dBm -46 dBm -36 dBm -36 dBm
Absolute Stop 30 dBm -27 dBm -46 dBm -36 dBm -36 dBm
Relative Start -45 dBc -55 dBc -55 dBc 0 dBc 0 dBc
Relative Stop -45 dBc -55 dBc -55 dBc 0 dBc 0 dBc

2-68 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Editing the Measurement Limits

.

Table2-13: Reverse link: BC (band class) 0 , 2, 3, 5, and 9

Zone ABCDE

Enable Yes Yes Yes No No
Start Frequency 885 kHz 1.98 MHz 4 MHz 4 MHz 20 MHz
Stop Frequency 1.98 MHz 4 MHz 20 MHz 3 GHz 8 GHz
Measurement BW 30 kHz 30 kHz 1 MHz 1 MHz 1 MHz
Offset Side Both Both Both Both Both
Failure Mode Rel AND Abs Rel AND Abs Absolute Absolute Absolute
Absolute Start -54 dBm -54 dBm -36 dBm -13 dBm -13 dBm
Absolute Stop -54 dBm -54 dBm -36 dBm -13 dBm -13 dBm
Relative Start -42 dBc -55 dBc 0 dBc 0 dBc 0 dBc
Relative Stop -42 dBc -55 dBc 0 dBc 0 dBc 0 dBc

.

Table2-14: Reverse link: BC (band class) 1 , 4, and 8

Zone ABCDE

Enable Yes Yes Yes No No
Start Frequency 1.25 MHz 1.98 MHz 4 MHz 4 MHz 20 MHz
Stop Frequency 1.98 MHz 4 MHz 20 MHz 3 GHz 8 GHz
Measurement BW 30 kHz 30 kHz 1 MHz 1 MHz 1 MHz
Offset Side Both Both Both Both Both
Failure Mode Relative Rel OR Abs Absolute Absolute Absolute
Absolute Start -54 dBm -54 dBm -36 dBm -13 dBm -13 dBm
Absolute Stop -54 dBm -54 dBm -36 dBm -13 dBm -13 dBm
Relative Start -42 dBc -50 dBc 0 dBc 0 dBc 0 dBc
Relative Stop -42 dBc -50 dBc 0 dBc 0 dBc 0 dBc

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-69

Editing the Measurement Limits

.

Table2-15: Reverse link: BC (band clas s) 6

Zone ABCDE

Enable Yes Yes Yes No No
Start Frequency 1.25 MHz 1.98 MHz 2.25 MHz 2.25 MHz 4 MHz
Stop Frequency 1.98 MHz 2.25 MHz 4 MHz 4 MHz 20 MHz
Measurement BW 30 kHz 30 kHz 1 MHz 1 MHz 1 MHz
Offset Side Both Both Both Both Both
Failure Mode Rel AND Abs Rel OR Abs Rel OR Abs Absolute Absolute
Absolute Start -54 dBm -54 dBm -13 dBm -13 dBm -36 dBm
Absolute Stop -54 dBm -54 dBm -14.75 dBm

2

-13 dBm -36 dBm
Relative Start -42 dBc -50 dBc -45 dBc 0 dBc 0 dBc
Relative Stop -42 dBc -50 dBc -45 dBc 0 dBc 0 dBc

2 Based on -[13+1x( ∆f-2.25 MHz)] dBm when ∆f is 4 MHz.

.

Table2-16: Reverse link: BC (band clas s) 7

Zone ABCDE

Enable Yes Yes Yes Yes Yes
Start Frequency 885 kHz 1.98 MHz 2.25 MHz 4 MHz 4 MHz
Stop Frequency 1.98 MHz 2.25 MHz 4 MHz 20 MHz 20 MHz
Measurement BW 30 kHz 30 kHz 30 kHz 1 MHz 1 MHz
Offset Side Both Both Both Both Both
Failure Mode Rel AND Abs Rel AND Abs Rel AND Abs Absolute Absolute
Absolute Start -54 dBm -54 dBm -35 dBm -36 dBm -36 dBm
Absolute Stop -54 dBm -54 dBm -35 dBm -36 dBm -36 dBm
Relative Start -42 dBc -54 dBc -55 dBc 0 dBc 0 dBc
Relative Stop -42 dBc -54 dBc -55 dBc 0 dBc 0 dBc

2-70 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Editing the Measurement Limits

SEM Inband Spurious

Limits

T ables 2-17 through 2-19 list the measurement limits that can be used for the SEM
Inband Spurious measurement.

Table2-17: Forward and reverse link: BC (band class) 0, 1, 2, 3, 4, 5, 7, 8, and 9

Zone ABCDE

Enable Yes Yes No No No
Start Frequency 1 GHz 925 MHz 935 MHz 1.805 GHz 4 MHz
Stop Frequency 3 GHz 935 MHz 960 MHz 1.880 GHz 8 GHz
Measurement BW 1 MHz 100 kHz 100 kHz 100 kHz 1 MHz
Failure Mode Absolute Absolute Absolute Absolute Absolute
Absolute Start -36 dBm -67 dBm -79 dBm -71 dBm -36 dBm
Absolute Stop -36 dBm -67 dBm -79 dBm -71 dBm -36 dBm
Relative Start 0 dBc 0 dBc 0 dBc 0 dBc 0 dBc
Relative Stop 0 dBc 0 dBc 0 dBc 0 dBc 0 dBc

Table2-18: Forward link: BC (band class) 6

Zone ABCDE

Enable Yes Yes Yes Yes No
Start Frequency 1.8935 GHz 925 MHz 935 MHz 1.805 GHz 4 MHz
Stop Frequency 1.9196 GHz 935 MHz 960 MHz 1.880 GHz 20 MHz
Measurement BW 300 kHz 100 kHz 100 kHz 100 kHz 1 MHz
Failure Mode Absolute Absolute Absolute Absolute Absolute
Absolute Start -41 dBm -67 dBm -79 dBm -71 dBm -36 dBm
Absolute Stop -41 dBm -67 dBm -79 dBm -71 dBm -36 dBm
Relative Start 0 dBc 0 dBc 0 dBc 0 dBc 0 dBc
Relative Stop 0 dBc 0 dBc 0 dBc 0 dBc 0 dBc

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-71

Editing the Measurement Limits

Table2-19: Reverse link: BC (band clas s) 6

Zone ABCDE

Enable Yes Yes Yes Yes Yes
Start Frequency 1.8935 GHz 876 MHz 921 MHz 1.710 GHz 1.805 GHz
Stop Frequency 1.9196 GHz 915 MHz 960 MHz 1.785 GHz 1.880 GHz
Measurement BW 300 kHz 100 kHz 100 kHz 100 kHz 100 kHz
Failure Mode Absolute Absolute Absolute Absolute Absolute
Absolute Start -41 dBm -98 dBm -57 dBm -98 dBm -47 dBm
Absolute Stop -41 dBm -98 dBm -57 dBm -98 dBm -47 dBm
Relative Start 0 dBc 0 dBc 0 dBc 0 dBc 0 dBc
Relative Stop 0 dBc 0 dBc 0 dBc 0 dBc 0 dBc

Gated Output Power Limits

Tables 2-20 and 2-21 list the measurement limits that can be used for the gated
output power measurement.

Table2-20: Forward link, all band classes, idle slot

Zone ABCDE

Enable Yes Yes Yes No No
Start Time 0 s 0 s 97.33 µs0 s 0 s
Stop Time 90.33 µs 97.33 µs 416.665 µs 416.665 µs 416.665 µs
Upper/Lower Lower Upper Upper Lower Upper
Offset Side Both Both Both Both Both
Failure Mode Relative Relative Relative Relative Relative
Absolute Start -150 dBm 30 dBm 30 dBm -150 dBm 30 dBm
Absolute Stop -150 dBm 30 dBm 30 dBm -150 dBm 30 dBm
Relative Start -2.5 dB 2.5 dB -7 dB -2.5 dB 2.5 dB
Relative Stop -2.5 dB 2.5 dB -7 dB -2.5 dB 2.5 dB

2-72 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Editing the Measurement Limits

Table2-21: Forward link, all band classes, active slot

Zone ABCDE

Enable No No No Yes Yes
Start Time 0 s 0 s 97.33 µs0 s 0 s
Stop Time 90.33 µs 97.33 µs 416.665 µs 416.665 µs 416.665 µs
Upper/Lower Lower Upper Upper Lower Upper
Offset Side Both Both Both Both Both
Failure Mode Relative Relative Relative Relative Relative
Absolute Start -150 dBm 30 dBm 30 dBm -150 dBm 30 dBm
Absolute Stop -150 dBm 30 dBm 30 dBm -150 dBm 30 dBm
Relative Start -2.5 dB 2.5 dB -7 dB -2.5 dB 2.5 dB
Relative Stop -2.5 dB 2.5 dB -7 dB -2.5 dB 2.5 dB

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 2-73

Editing the Measurement Limits

2-74 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Syntax and Commands

Command Groups

This section shows the organization of the Option 26 commands in a number of
functional groups.

For detailed information about other commands can be used with the WCA230A
or WCA280A, refer to the WCA230A & WCA280A Wireless Communication
Analyzers Programmer Manual.

Items followed by question marks are queries; items without question marks are
commands. Some items in this section have a question mark in parentheses (?) in
the command header section; this indicates that the item can be both a command
and a query.

You need to select one of the following measurement modes before executing any
commands for the Option 26. To set the measurement mode, use the
:INSTrument[:SELect] command using one of the mnemonics listed below:

Table 3-1: Measurement modes

Mnemonic Meaning

DEMFL1XEVDO 1xEV-DO forward link analysis
DEMRL1XEVDO 1xEV-DO reverse link analysis

For more information on SCPI commands and programming structure, refer to

WCA230A & WCA280A Wireless Communication Analyzers Programmer
Manual.

NOTE. Throug ho ut the header descriptions in this section, the word Standard in

italics is substituted for either of the following two measurement standards;
FL1XEVDO (1xEV-DO forward link) or RL1XEVDO (1xEV-DO reverse link).

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 3-1

Command Groups

:CONFigure Commands

Use these commands to set up the analyzer to perform the specified measurement.

Ta ble3-2: :CONFigure commands

Header Description

:CONFigure:Standard:ACPower Sets up the analyzer to the ACPR measurement default settings.
:CONFigure:Standard:CCDF Sets up the analyzer to the CCDF measurement default settings.
:CONFigure:Standard:CDPower Sets up the analyzer to the code domain power measurement default settings.
:CONFigure:Standard:CHPower Sets up the analyzer to the channel power measurement default settings.
:CONFigure:Standard:IM Sets up the analyzer to the intermodulation measurement default settings.
:CONFigure:Standard:MACCuracy Sets up the analyzer to the modulation accuracy measurement default settings.
:CONFigure:Standard:OBWidth Sets up the analyzer to the occupied band width measurement default settings.
:CONFigure:Standard:PCCHannel Sets up the analyzer to the pilot to code channel measurement default settings.
:CONFigure:FL1XEVDO:PVTime Sets up the analyzer to the gated output power measurement default settings.
:CONFigure:Standard:SEMask Sets up the analyzer to the spectrum emission mask measurement default settings.

:DISPlay Commands

Use these commands to control how to show measurement data on the screen.

Ta ble3-3: :DISPlay commands

Header Description
:DISPlay:Standard:CCDF subgroup

:DISPlay:Standard:CCDF:LINE:GAUSsian
[:STATe] (?)

:DISPlay:Standard:CCDF:LINE:REFerence
[:STATe] (?)

:DISPlay:Standard:CCDF:LINE:REFerence:STORe Stores a new reference line.
:DISPlay:Standard:CCDF:X[:SCALe]:AUTO (?) Determines whether to set the horizontal scale automatically in the CCDF view.
:DISPlay:Standard:CCDF:X[:SCALe]

:MAXimum (?)
:DISPlay:Standard:CCDF:X[:SCALe]

:OFFSet (?)
:DISPlay:Standard:CCDF:Y[:SCALe]:FIT Runs auto-scale on the CCDF view.
:DISPlay:Standard:CCDF:Y[:SCALe]:FULL Sets the vertical axis to the default full-scale value in the CCDF view.
:DISPlay:Standard:CCDF:Y[:SCALe]

:MAXimum (?)
:DISPlay:Standard:CCDF:Y[:SCALe]

:MINimum (?)

Sets whether to display the Gaussian line on the CCDF view.

Sets whether to display the reference line on the CCDF view.

Sets the horizontal maximum value (right end) in the CCDF view.

Sets the minimum horizontal value (left end) in the CCDF view.

Sets the maximum vertical value (top end) in the CCDF view.

Sets the minimum vertical value (bottom end) in the CCDF view.

3-2 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

Table 3-3: :DISPlay commands (cont.)

Header Description
:DISPlay:Standard:DDEMod subgroup

:DISPlay:Standard:DDEMod:MVIew:CORDer(?) Sets the code order.
:DISPlay:Standard:DDEMod:MVIew:FORMat (?) Selects the main view display format.
:DISPlay:Standard:DDEMod:MVIew:X[:SCALe]

:OFFSet (?)
:DISPlay:Standard:DDEMod:MVIew:X[:SCALe]

:RANGe (?)
:DISPlay:Standard:DDEMod:MVIew:Y[:SCALe]:FIT Runs auto-scale on the main view.
:DISPlay:Standard:DDEMod:MVIew:Y[:SCALe]

:FULL
:DISPlay:Standard:DDEMod:MVIew:Y[:SCALe]

:OFFSet (?)
:DISPlay:Standard:DDEMod:MVIew:Y[:SCALe]

:PUNit (?)
:DISPlay:Standard:DDEMod:MVIew:Y[:SCALe]

:RANGe (?)
:DISPlay:Standard:DDEMod:SVIew:FORMat (?) Selects the subview display format.
:DISPlay:Standard:DDEMod:SVIew:X[:SCALe]

:OFFSet (?)
:DISPlay:Standard:DDEMod:SVIew:X[:SCALe]

:RANGe (?)
:DISPlay:Standard:DDEMod:SVIew:Y[:SCALe]:FIT Runs auto-scale on the subview.
:DISPlay:Standard:DDEMod:SVIew:Y[:SCALe]

:FULL
:DISPlay:Standard:DDEMod:SVIew:Y[:SCALe]

:OFFSet (?)
:DISPlay:Standard:DDEMod:SVIew:Y[:SCALe]

:RANGe (?)

:DISPlay:Standard:SPECtrum subgroup

:DISPlay:Standard:SPECtrum:X[:SCALe]
:OFFSet (?)

:DISPlay:Standard:SPECtrum:X[:SCALe]
:PDIVision (?)

:DISPlay:Standard:SPECtrum:Y[:SCALe]:FIT Runs auto-scale on the spectrum view.
:DISPlay:Standard:SPECtrum:Y[:SCALe]:FULL Sets the vertical axis to the default full-scale value.
:DISPlay:Standard:SPECtrum:Y[:SCALe]

:OFFSet (?)
:DISPlay:Standard:SPECtrum:Y[:SCALe]

:PDIVision (?)

Sets the minimum horizontal value (left end) in the main view.

Sets the horizontal full-scale value in the main view.

Sets the main view’s vertical axis to the default full-scale value.

Sets the minimum vertical value (bottom end) in the main view.

Sets the unit of the vertical axis in the main view.

Sets the vertical full-scale value in the main view.

Sets the minimum horizontal value (left end) in the subview.

Sets the horizontal full-scale value in the subview.

Sets the subview’s vertical axis to the default full-scale value.

Sets the minimum vertical value (bottom end) in the subview.

Sets the vertical full-scale value in the subview.

Sets the minimum horizontal value (left end) in the spectrum view.

Sets the horizontal scale in the spectrum view.

Sets the minimum vertical value (bottom end) in the spectrum view.

Sets the vertical scale in the spectrum view.

Command Groups

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 3-3

Command Groups

Ta ble3-3: :DISPlay commands (cont.)

Header Description
:DISPlay:FL1XEVDO:WAVeform subgroup

:DISPlay:FL1XEVDO:WAVeform:X[:SCALe]
:OFFSet (?)

:DISPlay:FL1XEVDO:WAVeform:X[:SCALe]
:PDIVision (?)

:DISPlay:FL1XEVDO:WAVeform:Y[:SCALe]:FIT Runs auto-scale on the time domain display.
:DISPlayFL1XEVDO:WAVeform:Y[:SCALe]:FULL Sets the vertical axis to the default full scale.
:DISPlay:FL1XEVDO:WAVeform:Y[:SCALe]

:OFFSet (?)
:DISPlay:FL1XEVDO:WAVeform:Y[:SCALe]

:PDIVision (?)

Sets the minimum horizontal value in the time domain display.

Sets the horizontal or time scale per division in the spectrum view.

Sets the minimum vertical value in the time domain display.

Sets the vertical scale per division in the time domain display.

:FETCh Commands

Use these commands to retrieve the measurement from the data taken by the latest
:INITiate command.

If you want to perform a FETCh operation on fresh data, use the :READ
commands, which acquire a new input signal and fetch the measurement results
from that data.

Ta ble3-4: :FETCh commands

Header Description

:FETCh:Standard:ACPower? Returns the ACPR measurement results.
:FETCh:Standard:CCDF? Returns the CCDF measurement results.
:FETCh:Standard:CDPower? Returns the code domain power measurement results.
:FETCh:Standard:CHPower? Returns the channel power measurement results.
:FETCh:Standard:IM? Returns the intermodulation measurement results.
:FETCh:Standard:MACCuracy? Returns the modulation accuracy measurement results.
:FETCh:Standard:OBWidth? Returns the occupied bandwidth measurement results.
:FETCh:Standard:PCCHannel? Returns the pilot-to-code channel measurement results.
:FETCh:FL1XEVDO:PVTime? Returns the gated output power measurement results.
:FETCh:Standard:SEMask? Returns the spectrum emission mask measurement results.
:FETCh:Standard:DISTribution:CCDF? Returns the distribution data of the CCDF measurement.
:FETCh:FL1XEVDO:TAMPlitude:PVTime? Returns the time amplitude for the gated output power measurement.
:FETCh:Standard:SPECtrum:ACPower? Returns the spectrum waveform data of the ACPR measurement.
:FETCh:Standard:SPECtrum:CHPower? Returns the spectrum waveform data of the channel power measurement.
:FETCh:Standard:SPECtrum:IM? Returns the spectrum waveform data of the intermodulation measurement.
:FETCh:Standard:SPECtrum:OBWidth? Returns the spectrum waveform data of the occupied bandwidth measurement.

3-4 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual

:MMEMory Commands

Use these commands to manipulate files on the hard disk or floppy disk.

Table 3-5: :MMEMory commands

Header Description

:MMEMory:LOAD:LIMit Loads the limit from the specified file.
:MMEMory:STORe:LIMit Stores the limit in the specified file.
:MMEMory:STORe:STABle Stores the symbol table in the specified file.

:READ Commands

Use these commands to acquire an input signal once in the single mode and obtain
the measurement results from that data.

If you want to fetch the measurement results from the data currently residing in the
memory without acquiring the input signal, use the :FETCh command.

Command Groups

Table 3-6: :READ commands

Header Description

:READ:Standard:ACPower? Returns the ACPR measurement results.
:READ:Standard:CCDF? Returns the CCDF measurement results.
:READ:Standard:CHPower? Returns the channel power measurement results.
:READ:Standard:IM? Returns the intermodulation measurement results.
:READ:Standard:OBWidth? Returns the occupied bandwidth measurement results.
:READ:FL1XEVDO:PVTime? Returns the gated output power measurement results.
:READ:Standard:SEMask? Returns the spectrum emission mask measurement results.
:READ:Standard:DISTribution:CCDF? Returns the distribution data of the CCDF measurement.
:READ:FL1XEVDO:TAMPlitude:PVTime? Returns the time amplitude for the gated output power measurement.
:READ:Standard:SPECtrum:ACPower? Returns the spectrum waveform data of the ACPR measurement.
:READ:Standard:SPECtrum:CHPower? Returns the spectrum waveform data of the channel power measurement.
:READ:Standard:SPECtrum:IM? Returns the spectrum waveform data of the intermodulation measurement.
:READ:Standard:SPECtrum:OBWidth? Returns the spectrum waveform data of the occupied bandwidth measurement.

WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual 3-5

Command Groups

:SENSe Commands

Use these commands to set the detailed measurement conditions.

Ta ble3-7: :SENSe commands

Header Description
[:SENSe]:Standard subgroup

[:SENSe]:Standard:ACQuisition:CHIPs (?) Sets the acquisition length in chips.
[:SENSe]:Standard:ACQuisition:HISTory (?) Sets the acquisition history.
[:SENSe]:Standard:ACQuisition:SEConds (?) Sets the acquisition length in seconds.
[:SENSe]:Standard:ANALysis:INTerval (?) Sets the analysis interval.
[:SENSe]:Standard:ANALysis:OFFSet (?) Sets the analysis offset.
[:SENSe]:Standard:BLOCk (?) Sets the number of the block to be measured.
[:SENSe]:Standard[:IMMediate] Starts the calculation for the acquired data.
[:SENSe]:Standard:MEASurement (?) Selects the measurement item.
[:SENSe]:Standard:SPECtrum:OFFSet (?) Sets the spectrum offset within the time window.
[:SENSe]:Standard:SPECtrum:TINTerval? Returns the length of the time-domain information used to construct the spectrum

trace.

[:SENSe]:Standard:ACPower subgroup

[:SENSe]:Standard:ACPower:BANDwidth|BWIDth
:INTegration (?)

[:SENSe]:Standard:ACPower:FILTer
:COEFficient (?)

[:SENSe]:Standard:ACPower:FILTer:TYPE (?) Sets the filter for the ACPR measurement.
[:SENSe]:Standard:ACPower:LIMit

:ADJacent[1]|2|3..|12[:STATe] (?)

[:SENSe]:Standard:CCDF subgroup

[:SENSe]:Standard:CCDF:RMEasurement Clears the CCDF accumulator and restarts the measurement.
[:SENSe]:Standard:CCDF:THReshold (?) Sets the threshold for the CCDF measurement.

[:SENSe]:Standard:CDPower subgroup

[:SENSe]:Standard:CDPower:ACCThreshold (?) Sets the active channel threshold level for the code domain power measurement.
[:SENSe]:FL1XEVDO:CDPower:CHANnel

[:TYPE] (?)
[:SENSe]:Standard:CDPower:FILTer

:MEASurement (?)
[:SENSe]:Standard:CDPower:IQSWap (?) Sets whether to enable or disable IQ swapping for the code domain power

[:SENSe]:RL1XEVDO:CDPower:LCMask:I (?) Sets the 11-digit mask of the I long code for the code domain power measurement.
[:SENSe]:RL1XEVDO:CDPower:LCMask:Q (?) Sets the 11-digit mask of the Q long code for the code domain power measurement.
[:SENSe]:Standard:CDPower:MLEVel (?) Selects the measurement level for the code domain power measurement.
[:SENSe]:FL1XEVDO:CDPower:PNOFfset (?) Sets the PN offset for the code domain power measurement.
[:SENSe]:Standard:CDPower:SELect:CODE (?) Sets the code in the halfslot for the code domain power measurement.
[:SENSe]:Standard:CDPower:SELect:HSLot (?) Sets the halfslot for the code domain power measurement.

Sets the bandwidth of the main channel for the ACPR measurement.

Sets the filter roll-off rate for the ACPR measurement.

Sets whether to enable or disable the adjacent limit testing for the ACPR
measurement.

Selects the channel type for the code domain power measurement.

Selects the measurement filter for the code domain power measurement.

measurement.

3-6 WCA230A & WCA280A Option 26 1xEV-DO Analysis Software User Manual