Keysight N9320B Manual de usuario

Keysight N9320B

Spectrum Analyzer

Notice: This document contains references to

Agilent. Please note that Agilent’s Test and

Measurement business has become Keysight

Technologies. For more information, go to

www.keysight.com.

User’s Guide

Notices

No part of this manual may be reproduced in

any form or by any means (including elec-

tronic storage and retrieval or translation into

a foreign language) without prior agreement

and written consent from Keysight Technolo-

gies, Inc. as governed by United States and

international copyright laws.

Manual Part Number

N9320-90007

Edition

Fourth Edition, June 2014

Printed in Chia

Keysight Technologies, Inc.

No 116 Tianfu 4th Street

Chengdu 610041, China

Warranty

The material contained in this docu-

ment is provided “as is,” and is subject

to being changed, without notice, in

future editions. Further, to the maxi-

mum extent permitted by applicable

law, Keysight disclaims all warranties,

either express or implied, with regard

to this manual and any information con-

tained herein, including but not limited

to the implied warranties of merchant-

ability and fitness for a particular pur-

pose. Keysight shall not be liable for

errors or for incidental or consequential

damages in connection with the fur-

nishing, use, or performance of this

document or of any information con-

tained herein. Should Keysight and the

user have a separate written agreement

with warranty terms covering the mate-

rial in this document that conflict with

these terms, the warranty terms in the

separate agreement shall control.

Technology Licenses

The hard ware and/or software described in

this document are furnished under a license

and may be used or copied only in accor-

dance with the terms of such license.

Restricted Rights Legend

U.S. Government Restricted Rights. Software

and technical data rights granted to the fed-

eral government include only those rights

customarily provided to end user customers.

Keysight provides this customary commercial

license in Software and technical data pursu-

ant to FAR 12.211 (Technical Data) and

12.212 (Computer Software) and, for the

Department of Defense, DFARS

252.227-7015 (Technical Data - Commercial

Items) and DFARS 227.7202-3 (Rights in

Commercial Computer Software or Computer

Software Documentation).

Safety Notices

CAUTION

A CAUTION notice denotes a hazard.

It calls attention to an operating

procedure, practice, or the like that,

if not correctly performed or

adhered to, could result in damage

to the product or loss of important

data. Do not proceed beyond a

CAUTION notice until the indicated

conditions are fully understood and

met.

WARNING

A WARNING notice denotes a haz-

ard. It calls attention to an operat-

ing procedure, practice, or the like

that, if not correctly performed or

adhered to, could result in personal

injury or death. Do not proceed

beyond a WARNING notice until the

indicated conditions are fully

understood and met.

Software Revision

This guide is valid for revision B.03.40 of the

Keysight N9320B Spectrum Analyzer

firmware.

Contents

1 Overview 1

Keysight N9320B at a Glance 2

Front Panel Overview 4

Rear Panel Overview 9

Front and rear panel symbols 10

2 Getting Started 11

Check the Shipment and Order List 12

Safety Notice 14

Power Requirements 15

Power On and Check 17

Environmental Requirements 19

South Korea Class A EMC Declaration 22

Helpful Tips 23

Perform a Self Alignment 23

Perform a Time Base Calibration 23

Using an External Reference 24

Enable an Options 24

Firmware Upgrade 25

IO Configuration 25

Power Preset Last 26

3 Functions and Measurements 27

Making a Basic Measurement 28

Using the Front Panel 28

Presetting the Spectrum Analyzer 29

Contents

Viewing a Signal 30

Measuring Multiple Signals 32

Comparing Signals on the Same Screen Using Marker Delta 32

Comparing Signals not on the Same Screen Using Marker Delta 34

Resolving Signals of Equal Amplitude 36

Resolving Small Signals Hidden by Large Signals 39

Measuring a Low-Level Signal 41

Reducing Input Attenuation 41

Decreasing the Resolution Bandwidth 43

Trace Averaging 44

Improving Frequency Resolution and Accuracy 46

Tracking Drifting Signals 48

Making Distortion Measurements 50

Identifying Analyzer Generated Distortion 50

Third-Order Intermodulation Distortion 53

Measuring Phase Noise 56

Stimulus Response Transmission 57

Measuring Stop Band Attenuation of a Lowpass Filter 60

Making a Reflection Calibration Measurement 63

Measuring Return Loss Using the Reflection Calibration Routine 66

Making an Average Power Measurement 67

Demodulate the AM/FM signal 71

Demodulating an AM Signal 71

Demodulating an FM Signal 72

Contents

Analysis the Modulated Signals 74

AM/FM Modulation Analysis 74

ASK/FSK Modulation Analysis 77

Measuring Channel Power 80

Viewing Catalogs and Saving Files 83

Locating and Viewing Files in the Catalog 83

Saving a File 84

Loading a File 86

Copying a File 87

Deleting a File 87

4 Key Reference 89

Amplitude 90

Auto Tune 94

Back <- 95

BW/Avg 96

Det/Display 100

Enter 106

File 107

Frequency 113

Marker 115

Marker-> 121

Meas 122

Channel Power 122

Occupied BW 124

ACP 127

Contents

Intermod (TOI) 130

Spectrum Emission Mask 132

MODE 139

Tracking Generator 139

Power Meter 143

AM/FM Modulation Analysis 146

ASK/FSK Modulation Analysis 150

Peak Search 154

Preset/System 158

SPAN 164

Sweep/Trig 166

Trace 168

5 Instrument Messages 171

Overview 172

Command Errors 173

Execution Conflict 175

Device-Specific Errors 177

6 Troubleshooting 181

Check the basics 182

Contact Keysight Technologies 184

Index 207

Contents

7 Menu Maps 185

Amplitude Menu 186

BW/Avg Menu 187

Det/Display Menu 188

File Menu (1 of 2) 189

File Menu (2 of 2) 190

Frequency Menu 191

Marker Menu 192

Marker-> Menu 193

Measure Menu (1 of 2) 194

Measure Menu (2 of 2) 195

MODE - Tracking Generator 196

MODE - Power Meter 197

MODE - AM/FM Modulation Analysis 198

MODE - ASK/FSK Modulation Analysis 199

Name Editor Menu 200

Peak Search Menu 201

Preset/System Menu 202

SPAN Menu 203

Sweep/Trig Menu 204

Trace Menu 205

Contents

Overview

1 Overview

Keysight N9320B at a Glance 2

Front Panel Overview 4

Rear Panel Overview 9

Front and rear panel symbols 10

This chapter provides a description of the Keysight N9320B spectrum

analyzer and an introduction to the buttons, features, and functions of

the front and rear instrument panels.

Overview

Keysight N9320B at a Glance

The Keysight N9320B spectrum analyzer is a portable, swept

spectrum analyzer with afrequency range of 9kHz to

3.0 GHz. It can be a fundamental component of an

automated system. It can also be widely used in an

electronic manufacturing environment and in

functional/final/QA test systems.

Features

The Keysight N9320B spectrum analyzer primary features

and functions are described below:

• High Sensitive Measurement

The spectrum analyzer includes an optional pre- amplifier for

signals in the frequency range up to 3 GHz, enabling more

sensitive measurements. This feature is a great help in

analysis of weaker signals.

• High Accuracy Power Measurement

The N9320B supports Keysight U2000 series power sensors

for high accuracy power measurement as a power meter.

• Power Measurement Suite

The built- in one- button power measurement suite offers

channel power, ACP, OBW, and TOI measurements.

• Spectrum Emission Mask

provides a Pass/Fail testing capability with a mask for

out- of- channel emissions measurement.

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