Tektronix RFX100 Printed Help Document

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RFXpress® RFX100 Advanced RF/IF/IQ Waveform Creation and Editing Software

ZZZ

for the AWG5000 & AWG7000 Series Signal Generators

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RFXpress® RFX100 Advanced RF/IF/IQ Waveform Creation and Editing Software for the AWG5000 & AWG7000 Series Signal Generators

ZZZ

PrintedHelpDocument

www.tektronix.com

077-0045-12

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are covered by U.S. a nd foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Speciﬁcations and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Tektronix is pleased to acknowledge Mr. Joan Mercade as the author of portions of this Tektronix RFXpress Software providing baseband and modulation functionality.

SourceGrid LICENSE, Copyright (c ) 2006 www.devage.com, David Icardi.

MATLAB

RFXpress

RFX100 Online Help Version 4.1, part number 076-0081-12.

Contacting Tektronix

Tektronix, Inc. 14150 S P. O . Box 500 Beaverton, OR 97077 USA

WKarlBraunDrive

For product information, sales, service, and technical support:

rth America, call 1-800-833-9200.

In No Worldwide, visit www.tektronix.com to ﬁnd contacts in your area.

Table of Contents

Introduction

Welcome............................................................................................................. 1

Related Documentation ............................. .................................. ............................. 1

Conventions...... .................................. ................................ ................................ . 2

Feedback...................... .................................. ................................ ..................... 2

Getting Started

Minimum System Requirements..................... .................................. ........................... 3

Ordering RFXpress.............................. ................................ .................................. . 3

Installation........................................................................................................... 4

Connection Setups

Setup for RF Signal Generation........................... ................................ ................... 4

Setup for IF Signal Generation............................................................................... 5

Setup for AWG IQ Signal Generation....................................................................... 6

Table of Contents

Operating Basics

About Basic Operations............................................................................................ 9

Overview of the Software ........................................................................................ 10

Starting the Software ............ ................................ .................................. ................ 12

Using the Software to Create a Signal........................................................................... 12

Exiting the Software. ... . . .... . .... .... . .... .... . .... .... . .... . .... .... . .... .... . .... .... . .... . .... .... . .... .... . .. 13

File Name Extensions and Directories .......................................................................... 13

Applications, Setup Files, and Data Files ........................... ................................ ............ 14

Menus and Toolbars

Menu Bar ...................................................................................................... 15

Standard Toolbar.............................................................................................. 18

Status Bar...................................................................................................... 19

Waveform List .. .................................. ................................ ............................ 19

Toolbar Options

Select Application ............................................................................................ 22

Signal Type .................. ................................ .................................. ................ 22

Compile.............. .................................. ................................ ........................ 22

On/Off............................ .................................. ................................ ............ 23

Run ............... .................................. ................................ ............................ 23

Dialog Boxes

Open Setup .................................................................................................... 23

Open Data ..................................................................................................... 23

Save Setup........... .................................. ................................ ........................ 23

RFXpress RFX100 User Manual i

Table of Contents

Save Data ...................... ................................ ................................ ................ 24

Import Data from a File .. ................................ .................................. .................. 24

Set Sampling Rate for Imported Waveforms .............................................................. 27

Resample Imported Waveform .............................................................................. 27

Import from Tektronix Oscilloscope.. ..... .... . .... . .... . .... .... . .... . .... . .... ..... .... . .... . .... ..... ... 28

Find Instruments .............................................................................................. 29

Graph......................................... ................................ ................................ .. 30

Compile Settings.............................. .................................. .............................. 32

Option Installation ............................................................................................ 36

Overview .................... ................................ .................................. ................ 37

Generic Signal Dialog Boxes

PRBS Editor ............................. .................................. ................................ .... 41

Data Source Values........................................................................................... 42

Modulation File1(Samples).................... ................................ .............................. 43

Modulation File2(Symbols) ................................................................................. 45

Symbol Map................... ................................ .................................. .............. 46

Conﬁgure IF ......................... ................................ ................................ .......... 49

Calibration Wizard

Calibration for Generic, Radar, and OFDM Signals .................... .................................. 50

DUT Characterization

DUT Characterization Wizard..................... ................................ .......................... 53

UWB-WiMedia Dialog Boxes

Calibration for UWB-WiMedia Sig

Marker Mapping .............................................................................................. 57

Tone Nulling... . .... . .... ... . . .... . .... . .... . .... ..... ..... .... . .... . .... . .... . .... ... . . .... . .... . .... . .... .... 59

Hopping Pattern............................................................................................... 60

Process Preferences........................................................................................... 60

Custom Settings............................................................................................... 62

Frame Payload .......... ................................ .................................. .................... 64

Radar Dialog

Compile Settings for the Radar Application................... ................................ ............ 65

Add Pulse Groups............................................................................................. 67

OFDM Dialog Boxes

Compile Settings for OFDM ................................................................................ 67

Reed Solomon Coding ......... ................................ ................................ .............. 69

Scramble Editor................. .................................. ................................ ............ 71

Convolution Coding.......................................................................................... 72

Tone Nulling... . .... . .... ... . . .... . .... . .... . .... ..... ..... .... . .... . .... . .... . .... ... . . .... . .... . .... . .... .... 73

Frequency Hopping........................................................................................... 73

Gated Noise ................................................................................................... 74

Environment Dialog Boxes

Compile Settings for Environment Signals ................................................................ 74

nal........... ................................ .......................... 54

Boxes

ii RFXpress RFX100 User Manual

Radar Conﬁgure............................................................................................... 76

Creating a Generic Signal

Setup

Single Carrier.................................. .................................. .............................. 79

Multi Carriers ......................... ................................ .................................. ...... 80

Editing Carrier Detai

Selecting the Base Data .................. ................................ ................................ .... 83

Modulation for Carriers...................................................................................... 84

Filter for Carriers ....................... .................................. ................................ .... 85

Hopping

Hopping Parameters.......................................................................................... 87

Power Ramping

Power Ramping Parameters ................................................................................. 89

I/Q Impairments

Carrier Leakage for Single Carr

Quadrature Error for Carriers................................................................................ 90

I/Q Imbalance for Carriers........................... ................................ ........................ 91

Nonlinear Distortions for Carriers .......................................................................... 92

Hardware Skew for Carriers..................... .................................. .......................... 93

I/Q Swap for Carriers................. .................................. ................................ ...... 93

Distortion Addition

Ampliﬁer Distortion for Carriers............................................................................ 93

MultiPath

Multipath Parameters for Carriers .... . .... . .... . .... . .... .... . .... . .... . .... . .... .... . .... . .... . .... . .... .. 94

Interference Addition

Signal Addition for Carriers ... . .... . .... . .... ..... .... . .... . .... . .... ..... .... . .... . .... . .... ..... .... . .... . 95

Offset for Carriers ............................................................................................ 97

Sinusoidal for Carriers ....... ................................ ................................ ................ 98

Additive Noise for Carriers.... ... . . .... . .... . .... . .... . .... . .... ..... . .... ..... ..... .... . .... . .... . .... . .... 98

Subcarrier Modulation for Generic Signal

Subcarrier Modulation ............................. .................................. ...................... 100

Scattering Parameter for Generic Signal

S-Parameters .. ................................ .................................. ............................ 100

ls ....................................................................................... 81

Table of Contents

ier.......................................................................... 90

Creating a UWB-WiMedia Signal

Conformance Mode ............................................................................................. 103

Custom Mode ............ ................................ ................................ ........................ 103

Conformance Mode Setup

Packet Group Details for Conformance Mode........................................................... 105

Packet Details for Conformance Mode. ................................ ................................ .. 106

Hopping Details for Conformance Mode ................................................................ 108

RFXpress RFX100 User Manual iii

Table of Contents

Custom Mode Setup

Packet Group Details for Custom Mode . ................................ ................................ 109

Setting PPDU Details .... . .... . .... .... . .... . .... ... . . .... . .... ..... ... . . .... . .... ..... .... . .... . .... ... . . . 110

PLCP Preamble ................. ................................ .................................. .......... 111

PLCP Header................................................................................................ 112

PSDU............................. ................................ .................................. .......... 113

Packet Sync Sequence

PHY Header ................................................................................................. 117

MAC Header .......................... ................................ ................................ ...... 118

I/Q Impairments

Carrier Leakage for UWB-WiMedia ............................. ................................ ........ 119

Quadrature Error for UWB-WiMedia .................................................................... 119

I/Q Imbalance for UWB-WiMedia.................................. ................................ ...... 120

Nonlinear Distortion for UWB-WiMedia ................................................................ 121

Hardware Skew for UWB-WiMedia............................ .................................. ........ 122

I/Q Swap for UWB-WiMedia ................. .................................. .......................... 122

Distortion Addition

Ampliﬁer for UWB-WiMedia ............................................................................. 122

MultiPath

Multipath Parameters for UWB-WiMedia . .... ..... .... . .... . .... ..... .... . .... . .... .... . .... . .... . .... . 123

Interference Addition

Signal Addition for UWB-WiMedia. .... . .... . .... ..... .... . .... . .... . .... ..... .... . .... . .... . .... ..... .. 124

Offset for UWB-WiMedia ................................................................................. 126

Gated Noise for UWB-WiMedia .................................. ................................ ........ 126

Sinusoidal for UWB-WiMedia........ ................................ .................................. .. 128

Real-World Signal Interference ....................... ................................ .................... 129

S-Parameters

........................ ................................ .............................. 114

S-Parameters.................................. ................................ .......................... 130

Calibration for U WB-WiMedia Signals

Using Calibration for IF/RF Signals........................................................................... 133

Creating a Radar Signal

Carrier Setup ......... ................................ ................................ ............................ 135

Pulse

Pulse Setup .................... ................................ ................................ .............. 135

Pulse Envelope.............................................................................................. 136

Staggered PRI ............................................................................................... 138

Modulation .................................................................................................. 140

Hopping...................................................................................................... 144

Hopping Parameters........................................................................................ 144

Pulse Impairments ........................ ................................ .................................. 147

iv RFXpress RFX100 User Manual

Multipath . . .... . .... . .... . .... . .... . .... . .... . .... . .... . .... . .... ..... . .... ..... ..... ..... ..... ... . . ..... .... 148

Antenna ...................................................................................................... 148

Clutter ........................................................................................................ 150

I/Q Impairments

Hardware Skew for Radar ................................................................................. 151

Carrier Leakage for Radar ............. ................................ .................................. .. 151

Quadrature Error for Radar ................................................................................ 152

I/Q Imbalance for Radar ................................................................................... 152

I/Q Swap for Radar ............... ................................ .................................. ........ 152

Interference Addition

Signal Addition . .... ... . . .... . .... . .... . .... ..... ..... .... . .... . .... . .... . .... . .... ..... .... . .... . .... . .... . 153

Noise ............. ................................ ................................ ............................ 153

S-Parameters

S-Parameters.................................. ................................ .......................... 154

Creating an OFDM Signal

Basic Setup....................................................................................................... 157

Symbols............................. ................................ .................................. ............ 158

Packets............................................................................................................ 160

Frames ................ ................................ ................................ ............................ 161

Distortion ............... .................................. ................................ ........................ 163

S-Parameters ..................................................................................................... 164

Using Presets .................................................................................................... 165

Table of Contents

Creating an Environment Signal

Understanding the Environment Interface .......................... .................................. ........ 167

Conﬁguring Basic Settings for an Environment Signal ... ..... ... . . .... . .... ..... .... . .... . .... .... . .... . .. 167

Conﬁguring Advanced Settings for an Environment Signal

Advanced Settings for a Generic Signal. ..... .... . .... . .... . .... . .... ... . . .... . .... . .... . .... ..... ..... .. 169

Advanced Settings for a UWB Signal .... . .... . .... ..... ..... .... . .... . .... . .... . .... . .... . .... ... . . .... . 169

Advanced Settings for a Radar Signal ..... ..... .... . .... . .... . .... . .... .... . .... . .... . .... . .... ..... ..... 169

Advanced Settings for an OFDM Signal . .... . .... . .... . .... . .... .... . .... . .... . .... ..... .... . .... . .... . . 170

Advanced Settings for a WiFi Signal.... ..... .... . .... . .... . .... . .... .... . .... . .... . .... . .... ... . . .... . .. 170

Advanced Settings for a WiMax Signal . ..... ..... . .... . .... . .... . ..... ..... ..... ..... . .... . .... . .... . ... 171

Advanced Settings for a GSM Signal .... . .... . .... . .... . .... .... . .... . .... . .... . .... ..... ..... .... . .... . 171

Advanced Settings for a CDMA Signal .... . .... . .... .... . .... . .... . .... ... . . .... . .... . .... .... . .... . .... 173

Advanced Settings for a W-CDMA Signal .... . .... . .... .... . .... . .... ..... ... . . .... . .... . .... .... . .... . 175

Advanced Settings for a DVB-T Signal . .... . .... . .... . .... . .... . ..... . .... . ..... . ..... ..... . ..... . .... . . 176

Advanced Settings for a User Deﬁned Signal ............... ................................ ............ 176

Advanced Settings for a Noise Signal .... . .... . .... ..... ..... .... . .... . .... . .... . .... ..... ..... .... . .... . 178

RFXpress RFX100 User Manual v

Table of Contents

Instrument Control

Controlling an Instrument . . .... . .... . .... .... . .... . .... . .... . .... ..... ..... .... . .... . .... . .... . .... ... . . .... . .. 179

Controlling an Arbitrary Waveform Generator (AWG) .... ... . . .... . .... ..... .... . .... . .... ... . . .... . .... .. 180

Connecting to and Controlling an Oscilloscope.... .... . .... . .... . .... . .... . .... . .... ..... . .... ..... ..... .... 182

Connecting to and Controlling a Performance Signal Generator (PSG). .... . .... . .... .... . .... . .... .... . . 183

Connecting to a Real-Time Spectrum Analyzer.............................................................. 185

Instrument Control in the Radar Application

Controlling an Arbitrary Waveform Generator from the Radar Application.... ... . . .... . .... ..... .. 188

Settings View . . .... . .... . ..... .... . ..... ..... ..... ..... . .... . .... . .... . .... . .... . .... . .... . .... . .... . ..... .. 1 89

Sequence View ............................................................................................. 189

Trigger Options ............................................................................................. 191

Event Options ............................................................................................... 191

Graphing

oming Graphs........................... ................................ ................................ ...... 193

Pulse Shape....................................................................................................... 193

I(t), Q(t)........................................................................................................... 194

CCDF Plot........................................................................................................ 195

Spectrum.......................... ................................ ................................ ................ 196

Constellation Plotting .... . .... ... . . .... . .... ..... ... . . .... . .... ..... .... . .... . .... .... . .... . .... . .... ... . . .... . . 197

Eye Diagram ..................................................................................................... 198

Spectrogram...................................................................................................... 199

FFT of Coherent Pulse Interval ................................................................................ 200

Reference

Error Messages

Error Messages for Generic Signal ................... .................................. .................. 201

Error Messages for UWB-WiMedia ...................................................................... 203

Error Messages for Radar.................................................................................. 204

Error Messages for OFDM ........................ ................................ ........................ 209

Error Messages for Environment Plug-In........ ................................ ........................ 213

DUT Characterization Errors.......................... ................................ .................... 214

RTSA Connectivity-Related Errors....................................................................... 215

Miscellaneous Error Messages ............................................................................ 215

Miscellaneous Error Messages 2...... ................................ .................................. .. 217

Shortcut Keys ................ ................................ .................................. .................. 218

RFXpress Options and AWG Models ......................................................................... 218

AWG Spe ciﬁcations............................................................................................. 221

Interleave ......................................................................................................... 221

PRBS Editor Starting Values . .................................. ................................ ................ 224

Ampliﬁer Distortions...................... ................................ .................................. .... 224

AWG Sequence Window-Related errors ................ ................................ ............ 208

vi RFXpress RFX100 User Manual

Index

Table of Contents

Nonlinear Impairments.................................. ................................ ........................ 225

Image Calibration................................................................................................ 226

Types of Modul

Frequently Asked Questions ................................................................................... 239

ation ............................................................................................ 227

RFXpress RFX100 User Manual vii

Table of Contents

viii RFXpress RFX100 User Manual

Introduction Welc ome

Welcome

RFXpress RFX100 is a software application that creates digitally modulated baseband, IQ, IF, RF, UWB-WiMedia, and Radar signals that can be generated through arbitrary waveform generators (AWG). This softwar and can also run from an external PC.

Using RFXpress RFX100 (referred to as RFXpress), you can deﬁne baseband I and Q signals with various modulation schemes and create single or multi-carrier signals where each carrier can be independently deﬁned. For each carrier, you can apply impairments such as quadrature error and I/Q imbalance, add interferences such as sinusoidal interference, and deﬁne the graphs to create. Upon compilation, the signal can be viewed as graphs, sent to an arbitrary waveform g enerator, and saved for later use. Compilation options include sending signals directly to the AWG and completely eliminating the wrap-around effects found in arbitrary waveform generators. This provides seamless signals that can be played back continuously without any discontinuity or glitch in the time, frequency, modulation, or channel coding domains. Waveform transfer and control of the AWG5000 and AWG7000 series can be performed directly from RFXpress.

Waveforms captured from oscilloscopes and real-time spectrum analyzers can be modiﬁed in RFXpress before they are regenerated.

e runs as an integral part of AWG5000 and AWG7000 series arbitrary waveform generators

You can creat conformance mode, you can either select a standard setup or deﬁne your own setup based on the UWB standards. In the Custom mode, you can create a customized signal by deﬁning packet parameters and setting processing preferences. The Calibration feature for the UWB-WiMedia module allows you to create correction ﬁles and apply these correction ﬁles to channels during compilation.

The RFXpress RFX100 radar application supports basic pulse generation of different shapes and modulation types.

e UltraWideBand WiMedia signals in the Conformance and Custom modes. In the

See also:

Calibration

Find Instruments (see page 29)

RFXpress RFX100 User Manual 7

ck Compile. The waveform is compiled according to the default settings in the Compile Settings window. The compiled waveform is displayed in the Waveform List. This waveform is transferred to theAWGchannels(Ch1andCh2).ThiscanalsobeseenintheInstrumentControl>AWGtab.

ick Run to generate the signal on the AWG.

(see page 133)

Getting Started Setup for AWG IQ Signal Generation

8 RFXpress RFX100 User Manual

Operating Basics About Basic Operations

About Basic Operations

The basic operations section describes the software, tells how to start the software, use the menus and toolbars, and describes the dialog boxes.

In this online help, all menu selections are indicated with Menu name and Menu options separated by ">". You can access a command or a menu option in more than one way. Several main menu options are available i which open with a right-click, are provided for editing, creating and viewing graphs, importing data from a ﬁle or a Tektronix oscilloscope, and transferring a waveform to an arbitrary waveform generator.

Some dialog boxes also have a Help button that displays help for that dialog box.

n a toolbar that you can use instead of selecting the option from the main menu. Shortcut menus,

Detailed UWB-WiMedia, Radar, Calibration for WiMedia Signals, Instrument Control, and Graphing. The References section lists Error Messages, Shortcut Keys, and provides a note on Interleaving and Types of Modulation.

The following ﬁgure shows the application screen, the menu, the toolbar, and other elements of the user interface.

operations and parameters are described in the sections on Generic Signal, OFDM,

RFXpress RFX100 User Manual 9

Operating Basics Overview of the Software

Overview of the Software

RFXpress is a software application that creates digitally modulated baseband, IQ, IF, RF, UWB-WiMedia, and Radar signals that can be generated through arbitrary waveform generators (AWG). This software runs as an integra from an external PC.

Features of RFXpress

Baseband data generation. Deﬁne baseband I and Q signals using a variety of modulation schemes such as No Mod, QPSK, PI/2 QPSK, BPSK, PI/4 QPSK, OQPSK, 8-PSK, O-8PSK, QAM-16, PI/2 QAM16, QAM-32, QAM-64, QAM-128, QAM-256, QAM-512, QAM-1024, GMSK, 2-FSK, 4-FSK, 8-FSK, 16-FSK, 32-FSK, ASK, AM, PM, FM, nDPSK, OOK, and Pi/2 BPSK.

Multi-carrier setup. Deﬁne multiple RF/IF carriers in a single waveform. Each carrier can be independently deﬁned with parameters such as carrier frequency, symbol rate, modulation type, and base

Single or multiple pulse groups to form a pulse train. Each pulse group can be independently deﬁned with va

l part of AWG5000 and AWG7000 series arbitrary waveform generators and can also run

band ﬁlters.

rious predeﬁned pulse shapes and user deﬁned shapes for a pulse group.

Allows you to apply various modulation schemes or deﬁne your own.

Allows you to have Pulse- t o-Pulse hopping within a pulse group and to apply impairments like Edge Jitter, Width Jitter, Overshoot, Ripple and Droop on a pulse group.

IQ impairments. Apply impairments including quadrature error and quadrature imbalance.

Generate the following graphs:

Frequency Domain: Spectrum

I v Q: Constellation

me Domain: I(t) and Q(t) versus time, and Pulse shape

Statistical: CCDF and Eye Diagram

Time versus Frequency: Spectrogram and Coherent Pulse Interval

Distortion measurement for system calibration. To maintain system integrity and coherency with Amplitude, Phase inband ﬂatness, and skew between separate channels. The setup includes capturing data from a TDS oscilloscope and a real-time spectrum analyzer and downloading the data to generate the correction data.

Noise/interference generation and addition. Generate and add interference for waveforms. Generate gated noise on speciﬁc frames designated by the user.

Capture and Replay. Waveforms captured from oscilloscopes and real-time spectrum analyzers can be modiﬁed in RFXpress before they are regenerated.

10 RFXpress RFX100 User Manual

Operating Basics Overview of the Software

Wrap around. RFXpress completely eliminates all the wrap-around effects found in arbitrary waveform generators, providing seamless signals that can be played back continuously without any discontinuit

Connectivity between AWG, oscilloscope, and Agilent Performance Signal Generator® (PSG). The ability t oscilloscope, and the Agilent PSG®, and to conﬁgure their setups remotely. The radar application uses the AWG sequence mode is to optimize the memory and create large number of pulses. However if Option 08 is not purchased, the radar application uses the Continuous Mode instead of Sequence Mode.

Remotely conﬁgure a Tektronix real-time spectrum analyzer and import I and Q trace data.

Characterize a DUT and provide S-parameter emulation of RF components.

y or glitch in the time, frequency, modulation, or channel coding domains.

o identify and connect to a Tektronix Arbitrary Signal Generator (AWG), a Tektronix

Deﬁne ant

Create multiple layers of modulation using subcarrier multiplexing.

Deﬁne a staggered PRI with ramp and user-deﬁned proﬁles, and add up to ten multipaths.

Conﬁgure all parameters of OFDM

Build custom OFDM frames from deﬁning base data, symbols, packets, and frames

Support Reed Solomon, Convolution coding, and Scrambling

Add Im

Deﬁne frequency hopping and gated noise

Support a variety of subcarrier modulation (BPSK, QPSK, QAM (16,32,64,256) and 8-PSK)

Support Tone Nulling and Clipping

Provide presets for WiFi and WiMax standards

enna beam proﬁle and simulate target returns for radar signals.

pairments Phase noise, Multipath, and Quantization

RFXpress RFX100 User Manual 11

Operating Basics Starting the Software

Starting the Software

From the Start menu, click All Programs > Tektronix RFXpress > RFXpress. You can also double-click the RFXpress shortcut on the desktop.

You can use the software in three modes:

RFXpress on any AWG5000 or AWG7000 series instrument. In this case, the software automatically detects the AWG software. You can transfer data directly to the AWG. The status bar shows "AWGXXXX Online".

RFXpress on a PC with the AWG software running in the ofﬂine mode. In this case, the AWG software has to be started before starting RFXpress. You can transfer data to the AWG ofﬂine software. The statu

RFXpress on a PC without the AWG software. In this case, the software does not detect the AWG softwar for later use). The status bar shows "AWGXXXX Not Available".

s bar shows "AWGXXXX Ofﬂine".

e, and you cannot transfer data to the AWG (although you can create and store the waveform

Using t

Using

1. Select an application or module: Generic Signal, UWB-WiMedia, or Radar.

2. Select the signal type: IF/RF or IQ.

3. For a Generic signal, select the number of carriers: Single or Multi-carrier. For a UWB signal, select

4. For a Generic signal, deﬁne the carrier parameters: Frequency, Modulation, Amplitude, Filter and

5. Select the compilation options and compile the signal.

You can also specify the graphs that you want to create and view them in the Graph Preview window. You can transfer the signal to an arbitrary waveform generator in the Instrument Control window. Importing ﬁles and replicating waveform ﬁles work with only the following instruments:

he Software to Create a Signal

RFXpress, you can generate a signal as follows:

the mode: Conformance or Custom. For a Radar signal, select the number of pulses.

others. For a UWB signal, select the setup and deﬁne the selected packet group and packet parameters. For a Radar signal, select the pulse envelope, frequency, and other pulse parameters.

Oscilloscopes: Tektronix TDS6000, DPO/DSA70000, and DPO7000 series (*.wfm)

Arbitrary Waveform Generators: Tektronix AWG400, AWG500, AWG600, and AWG700 series (*.wfm)

Real-time Spectrum Analyzers: Tektronix RSA3000 and RSA60000 series (*.iqt, *.tiq)

Others: MATLAB binary formats (*.MAT)

12 RFXpress RFX100 User Manual

Operating Basics Exiting the Software

Exiting the Software

Select File > Exit to exit the application. If you have not saved the waveforms, you are prompted to do so.

File Name Extensions and Directories

Thesoftwareusesthefollowingﬁle name extensions:

Table 3: Fi

File name e

.rfs Setup ﬁle o

.rfd Data ﬁle o

.smp

.rfc Correction ﬁle

xxx

le name extensions

xtension

Descripti

band signal)

Symbol ﬁle

f the selected application

f the waveform (generic signal and ultra wide

The software uses the following directories:

Table 4: Directory names

Directory Description

C:\Program Files\Tektronix\RFXpress\System Contains the application ﬁles and executables

C:\Program Files\Tektronix\RFXpress\Documentation Contains the related documentation as text and PDF ﬁles

C:\Program Files\Tektronix\RFXpress\Samples Contains sample waveform ﬁles

xxx

RFXpress RFX100 User Manual 13

Operating Basics Applications, Setup Files, and Data Files

Applications, Setup Files, and Data Files

An application is a module that you can use to create speciﬁc types of waveforms, for example Generic Signal and UWB-WiMedia. Applications that are available but have not been purchased appear in the Application

You can only have one Setup File (.rfs) open at a time and only one application in use at a time. If you change the a

Selecting an application: In the Select ﬁeld, select an application from the list. When you select an applica currently selected application.

list but are disabled.

pplication, you are prompted to save the open ﬁle.

tion (Generic Signal, UWB-WiMedia, or Radar), the default settings are displayed for the

Setup Fil

Once you compile the setup ﬁle (using Waveform > Compile), you can save the ﬁle as a Data File (.rfd). Compiled data ﬁles for the current session appear in the Waveform List. After you select the Application, a default Setup File opens automatically. If a setup ﬁle is open with unsaved changes and you try to create a new ﬁle or change applications, you are prompted to save the ﬁle. Toopenanexistingsetup ﬁle, select File > Open Setup.

The rfs ﬁle content varies depending on the selected application (Generic or UWB-WiMedia). By default, the name of the rfs ﬁle is derived from the application name.

Data File (.rfd): You can save a compiled Setup File as a Data File using File > Save Data or Save Data As. Files that you import from other instruments become data ﬁles. Select File > Save or Save As to save thes

NOTE. Each rfd ﬁle can store one of the three formats: IF/RF, I, and Q. An rfd ﬁle stores the version information and sampling rate.

e(.rfs):A Setup File is a collection of settings that describes a single or multiple waveforms.

edataﬁles. To open an existing data ﬁle, select File > Open Data.

14 RFXpress RFX100 User Manual

Operating Basics Menu Bar

Menu Bar

The RFXpress menu has the following items:

File

Use the File menu to:

ore the default setup for the currently active application

Rest

Create new waveform setups

Open, close and save waveform setups (.rfs format)

Open, close and save data ﬁles (.rfd format)

Import data from a ﬁle (created by another software)

Import data from a Tektronix oscilloscope

xit the software

View

RFXpress RFX100 User Manual 15

Operating Basics Menu Bar

Use the View menu to:

View the Standard toolbar

Conﬁgure

Use th

View th e St

eConﬁgure menu to:

Select an application: Generic Signal, UWB-WiMedia, Radar, OFDM, or Environment. UWBpurchased

atus toolbar

WiMedia, Radar, OFDM, and Environment are available only if they have been

n the Find Instruments dialog box to make instrument connections

Ope

Waveform

16 RFXpress RFX100 User Manual

Operating Basics Menu Bar

Use the Waveform menu to:

Compile the currently active Waveform Setup

Set Compilation options

Open the Graph Setup dialog box to select the graphs

System

Use the System menu to:

Run

Stop

ll channel outputs on or off

Turn a

Open the Calibration wizard and set the parameters to calibrate the signal

Open the DUT Characterization wizard

Window

RFXpress RFX100 User Manual 17

Operating Basics Standard Toolbar

Use the Window menu to:

View the Waveform List window

Preview the Graphs

Open Instrument Control window

Open the Overview window

Close all windows

Help

Use the Help menu to:

Open the online help

Display help speciﬁc to the currently active application

Display technical support on the Tektronix Web site

Display information about the application, such as version number

Standard Toolbar

The Standard toolbar is always displayed by default. Select View > Standard toolbar to hide or show the toolbar.

The Standard toolbar has the following options that you can select:

Select Application (see page 22)

Signal Type (see page 22)

Conﬁgure IF (see page 49)

Calibration (see page 50) Calibration for Generic Signal

18 RFXpress RFX100 User Manual

+ 226 hidden pages

Tektronix RFX100 Printed Help Document

Specifications and Main Features

Frequently Asked Questions

User Manual