Service GuideKeysight N9038AMXE EMI ReceiverNotice: This document contains references to Agilent.Please note that Agilent’s Test and Measurementbusiness has become Keysight Technologies. Formore information, go to www.keysight.com.

Keysight N9038A Service Manual

safety notices

How to Use this Manual

X-Series Programming Options

Hardware Connection Formats

VISA Driver Options

Keysight VEE Pro

Programming Documentation Roadmap

SCPI Programming Fundamentals SCPI Language Basics

Creating Valid Commands

Parameters in Commands

Block Program Data

Where to find X-Series SCPI Command Definitions

Help Topic Content

List of SCPI Commands

Simple SCPI Communication Methods

Determining Instrument IP Address

Enabling Telnet in Windows

Techniques for Improving Measurement Performance

Use USB or LAN Connection instead of GPIB

Making a Single Burst Measurement

More Hints & Tips

Location of Header Files

Programming with Microsoft .NET and VISA

Requirements for Deploying a VISA Project

N9060A Spectrum Analyzer Mode Programing Samples

Visual Basic 6

Retrieve Screen Images

Poll Method for Operation Complete

Phase Noise Trace Math

Upload a File

N9064A VXA Vector Signal Analyzer Programming Samples

Documents & Web Sites

Developer Resources

N9038A

Setting Up and Making a Measurement

The 3 Steps to Set Up and Make Measurements

Demodulating an AM Signal

Demodulating an FM Signal

Demodulating an FM Stereo/RDS Signal

Measuring L=R FM Stereo/RDS Signals

2 Concepts

AM Concepts

FM Concepts

FM Stereo/RDS Concepts

Demodulating an FM Stereo/RDS Signal Using the Analyzer as a Fixed Tuned Receiver (Time-Domain)

Modulation Distortion Measurement Concepts

Modulation SINAD Measurement Concepts

Making a Basic Measurement

Presetting the signal analyzer

Viewing a signal

Recommended Test Equipment

Accessories Available

AC probe (low frequency)

Power splitters

2 Measuring Multiple Signals

Comparing Signals on the Same Screen Using Marker Delta

Comparing Signals not on the Same Screen Using Marker Delta

Resolving Signals of Equal Amplitude

Resolving Small Signals Hidden by Large Signals

Decreasing the Frequency Span Around the Signal

Easily Measure Varying Levels of Modulated Power Compared to a Reference

Reducing Input Attenuation

Decreasing the Resolution Bandwidth

Using the Average Detector and Increased Sweep Time

Trace Averaging

4 Improving Frequency Resolution and Accuracy

Using a Frequency Counter to Improve Frequency Resolution and Accuracy

5 Tracking Drifting Signals

Measuring a Source Frequency Drift

Tracking a Signal

6 Making Distortion Measurements

Identifying Analyzer Generated Distortion

Third-Order Intermodulation Distortion

7 Measuring Noise

Measuring Signal-to-Noise

Measuring Noise Using the Noise Marker

Measuring Noise-Like Signals Using Band/Interval Density Markers

Measuring Noise-Like Signals Using the Channel Power Measurement

Measuring Signal-to-Noise of a Modulated Carrier

Improving Phase Noise Measurements by Subtracting Signal Analyzer Noise

8 Making Time-Gated Measurements

Generating a Pulsed-RF FM Signal

Analyzer setup

Digitizing oscilloscope setup

Connecting the Instruments to Make Time-Gated Measurements

Gated LO Measurement

Gated Video Measurement

Gated FFT Measurement

9 Measuring Digital Communications Signals

Channel Power Measurements

Occupied Bandwidth Measurements

Troubleshooting hints

Making Adjacent Channel Power (ACP) Measurements

Making Statistical Power Measurements (CCDF)

Making Burst Power Measurements

Spurious Emissions Measurements

Spectrum Emission Mask Measurements

10 Demodulating AM Signals

Measuring the Modulation Rate of an AM Signal

Measuring the Modulation Index of an AM Signal

11 IQ Analyzer Measurement

Capturing Wideband Signals for Further Analysis

Complex Spectrum Measurement

IQ Waveform (Time Domain) Measurement

12 Using Option BBA Baseband I/Q Inputs

Baseband I/Q measurements available for X-Series Signal Analyzers

Baseband I/Q measurement overview

13 Option EXM External Mixing

Using Option EXM with the Keysight 11970 Series Mixers

Amplitude calibration

Signal ID

Operating precautions

Equipment set up

Operation

Viewing the external mixer setup screen

14 Option Esc External Source Control

Using Option ESC with the Keysight MXG Signal Sources

Loading conversion loss data for the PXA Signal Analyzer

Using the M1970 Series Mixers with X-Series Signal Analyzers (Option EXM)

15 Concepts

Resolving Closely Spaced Signals

Trigger Concepts

Time Gating Concepts

How time gating works

Measuring a complex/unknown signal

Quick Rules" for making time-gated measurements

Using the Edge Mode or Level Mode for triggering

Noise measurements using Time Gating

AM and FM Demodulation Concepts

IQ Analysis Concepts

IQ Waveform Measurement

Spurious Emissions Measurement Concepts

Spectrum Emission Mask Measurement Concepts

signal analyzers

safety information

Overview of Instrument Messaging System

Event and Condition Categories

Event Categories

Condition Categories

Error Message Fields

Event Queues & Displays

Message Display & Controls

Status Bar

Instrument Messages

Advisory Messages

Band Adjust has no effect on a Fixed marker

Fixed LO freq should be greater than RF Stop freq

LO Fixed freq should be greater than IF Stop freq

Probe disconnected, reverting to cable calibration data; <port

Signals deleted

Event Messages

Operation Complete Event

Query DEADLOCKED

to –399, Device-Specific Errors

Calibration memory lost

Calibration failed; <failure msg><port

Settings Conflict Errors

Settings conflict; <trigger source> trigger is not available while input is <input port

Settings conflict; Averaged acquisition duration time exceeds maximum value, Acq

Settings conflict; Can't Auto-Couple Res BW in Zero Span

Settings conflict; dB*/MHz is not applicable to the following Y-Axis units, dBm, W, V, A

Settings conflict; Electronic attenuator unavailable with Preamp on

Settings conflict; Feature not supported for this measurement

Settings conflict; Freq > 3.6 GHz unavailable while electronic attenuator enabled

Settings conflict; Gate is not available when Marker Count on

Settings conflict; Input Port is not available while occupied by Output of incompatible frequency

Settings conflict; Marker cannot be relative to itself

Settings conflict; MPA GPS port power setting <n>dBm is lower than -130dBm minimum

Settings conflict; Normalize is not available while Demod View is on

Settings conflict; Param only available when Frequency Mode is Swept

Settings conflict; Pre-trigger is insufficient for demod. Decrease Trig Delay

Settings conflict; Signal Track is not available with Continuous Peak

Settings conflict; Step keys are not available to modify this function

Settings conflict; Too many points; Stop Freq clipped to nearest value allowed

Settings conflict;Auto Scan Time/Meas Time do not apply in Stepped Scan Type

to –299, Execution Errors

All ranges are off. Turn on at least a range

Execution error; No ranges are defined. Activate a range

Arm ignored

Arm deadlock

Parameter error;License slot <n> is locked, therefore cannot be replaced

Data out of Range; clipped to source max/min

Data out of range; Two entries already exist at this x-axis value

Illegal parameter value; Gated LO is not available while Sweep Type is set to FFT

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