Agilent 8712ES Service Guide

Download

Service Guide

Agilent Technologies

8712ET/ES and 8714ET/ES

RF Network Analyzers

Part No. 08714-90017

Printed in USA

March 2000

Supersedes: October 1999

Notice.

Softkey

This information contained in this document is subject to change without notice.

Agilent Techologies makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and ﬁtness for a particular purpose. Agilent Techologies shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

Windows is a registered trademark of Microsoft Corporation. TORX is a registered trademark of TORX Products, division of Camcar/Textron Corporation.

Certiﬁcation

Agilent Techologies certiﬁes that this product met its published speciﬁcations at the time of shipment from the factory. Agilent Techologies further certiﬁes that its calibration measurements are tractable to the United States National Institute of Standards and Technology, to the extent allowed by the Institute’s calibration facility, and to the calibration facilities of other International Standards Organization members.

Regulatory Information

The regulatory information is in the User’s Guide supplied with the analyzer.

Safety, Warranty, and Assistance

Refer to Chapter 9 for information on safety, warranty, and assistance.

How to Use This Guide

This guide uses the following conventions:

FRONT PANEL KEY

: This indicates a “softkey,” a key whose label is determined by the instruments ﬁrmware, and is displayed on the right side of the instrument’s screen next to the eight unlabeled keys.

Screen Text: This indicates text displayed on the instrument’s screen.

This guide contains servicing information for the following instruments:

• 8712ET

• 8712ES

: This represents a key physically located on the instrument.

• 8714ET

• 8714ES

iii

8712ET/ES and 8714ET/ES Network Analyzer Documentation Map

The CDROM provides the contents of all of the documents listed below.

The User’s Guide shows how to make measurements, explains commonly-used features, and tells you how to get the most performance from the analyzer.

The LAN Interface User’s Guide Supplement shows how to use a local area network (LAN) for programming and remote operation of the analyzer.

The Automating Measurements User’s Guide Supplement provides information on how to conﬁgure and control test systems for automation of test processes.

The Programmer’s Guide provides programming information including GPIB and SCPI command references, as well as short programming examples.

The Example Programs Guide provides a tutorial introduction using BASIC programming examples to demonstrate the remote operation of the analyzer.

The Service Guide provides the information needed to adjust, troubleshoot, repair, and verify analyzer conformance to published speciﬁcations.

The HP Instrument BASIC User’s Handbook describes programming and interfacing techniques using HP Instrument BASIC, and includes a language reference.

The HP Instrument BASIC User’s Handbook Supplement shows how to use HP Instrument BASIC to program the analyzer.

The Option 100 Fault Location and Structural Return Loss Measurements User’s Guide Supplement provides theory and measurement examples for making fault location and SRL measurements. (Shipped only with Option 100 analyzers.)

The CATV Quick Start Guide provides abbreviated instructions for testing the quality of coaxial cables. (Shipped only with Option 100 analyzers.)

The Cellular Antenna Quick Start Guide provides abbreviated instructions for verifying the performance of cellular antenna systems. (Shipped only with Option 100 analyzers.)

Contents

1. Performance Checks

Performing the Operator's Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Equipment List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Make a Transmission (or S21 and S12) Measurement(s). . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Make a Broadband Power Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

Make a Reﬂection (or S11 and S22) Measurement with a Cable. . . . . . . . . . . . . . . . . . . . .1-7

Make a Reﬂection (or S11 and S22) Measurement with a Load . . . . . . . . . . . . . . . . . . . . .1-8

If the Analyzer Fails the Operator’s Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

Performance Test Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10

Required Software and Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10

Estimated Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11

Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12

File Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13

Conﬁguration File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15

Performance Test Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15

Using the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19

Performance Test Notes and Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-23

Speciﬁcations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-36

Deﬁnitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-36

System Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-37

Test Port Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-57

Test Port Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-63

General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-73

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-79

Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-79

Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-80

Data Hardcopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-81

Automation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-81

Measurement Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-82

Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-85

2. Adjustments

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

Required Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Correction Constants (CCs) Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Frequency Accuracy Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

Set Serial Number, Adjustment #100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7

LO Power Correction, Adjustment #101. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9

Switched Gain Correction, Adjustment #102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10

External Detector Gain Correction, Adjustment #103. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12

Auxiliary Input Correction, Adjustment #111 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14

Source Power Correction, Adjustment #104. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15

B Amplitude Correction, Adjustment #105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18

Reﬂection (One-Port) Correction, Adjustment #107. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19

Transmission Correction, Adjustment #106. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20

B* Amplitude Correction, Adjustment #110. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21

R* Amplitude Correction, Adjustment #108. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23

R* Frequency Response Correction, Adjustment #109 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25

Contents-vii

Contents

3. Assembly Replacement

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Assembly Removal/Replacement Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

A1 Front Panel Assembly Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Removing the Front Panel Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Installing the Front Panel Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

A2 CPU Board Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Removing the CPU Board Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Installing the CPU Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

A3 Fractional-N/Reference Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Removing the Fractional-N/Reference Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Installing the Fractional-N/Reference Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

A4 Source Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11

Removing the Source Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Installing the Source Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

A5 Receiver Assembly Component Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Removing the Receiver Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Installing the Receiver Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

A6 Power Supply Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Removing the Power Supply Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Installing the Power Supply Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

A7 Display Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Removing the Display Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

A8 Internal Disk Drive Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Removing the 3.5" Disk Drive Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Installing the 3.5" Disk Drive Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Post Repair Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

How to Order Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Save Money by Ordering R-E (Rebuilt-Exchange) Assemblies . . . . . . . . . . . . . . . . . . . . . 3-24

4.Troubleshooting and Block Diagrams

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

General Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Service Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Initial Observations — Normal Power-up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Operator's Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Category 1 Failures: Dead or No Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Troubleshooting the Power Supply Assembly (A6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Troubleshooting Digital Group Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Error Occurs During DSP Initialization or Calculating Coefﬁcients . . . . . . . . . . . . . . . . 4-16

Front Panel Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17

Other Power-Up Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Other Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Category 2 Failures: No Error Messages but One or More Measurements Are

Nonfunctional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Category 2 (ET Analyzer Troubleshooting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Category 2 (ES Analyzer Troubleshooting). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

General Troubleshooting for Both ET and ES Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

Contents-viii

Contents

Category 3 Failures: Inaccurate (but reasonably functional) Measurements. . . . . . . . . . . .4-33

Troubleshooting Inaccurate Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-33

RF Power Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-37

Category 4 Failures: Peripheral Device Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-38

DIN Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-38

RS-232 Printers and Plotters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-38

Floppy Disk Drive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-38

Centronics (Parallel) Printers and Plotters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-39

GPIB Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-39

LAN Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-40

5. Service Related Menus

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

Tests and Adjustments Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4

Select Self-Test Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5

Select Adjustment Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8

Instrument Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10

Update Corr Const Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11

Service Utilities Menu 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12

Meas Cal Options Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-15

Analog Bus Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16

Service Utilities Menu 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-19

Service Utilities Menu 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20

View Array Master Menu /View Array Interpol Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-21

Miscellaneous Service Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-22

Clearing Nonvolatile Memory (SRAM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-22

GPIB Command Reference for Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-23

Syntax Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-23

Softkey SCPI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-23

Alphabetical SCPI Command Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24

6. Theory of Operation

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

System Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

The Analyzer Functional Groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

Power Supply (A6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6

Digital Control Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6

Source Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8

Receiver Assembly (A5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12

7. Parts List

Analyzer Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2

Speciﬁc Assembly and Cable Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3

8. Correction Constants and Firmware

Storing and Recalling Correction Constants (CC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2

Storing Correction Constants to Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3

Loading Correction Constants from Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3

Contents-ix

Contents

Storing Correction Constants to EPROM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Installing Correction Constants from Disk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

In Case of Difﬁculties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Upgrading or Re-Installing Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

How to Upgrade or Re-Install the Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5

9. Safety, Warranty, and Assistance

Safety Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

General Safety Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

Safety Earth Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

Lithium Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

Limitation of Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

Exclusive Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

Shipment for Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

Contents-x

8712ET/ES and 8714ET/ES RF Network Analyzers

1 Performance Checks

Service Guide 1-1

Performance Checks 8712ET/ES and 8714ET/ES

RF Network Analyzers

This chapter is divided into three parts:

• “Performing the Operator's Check” on page 1-3

• “Performance Test Software” on page 1-10

• “Speciﬁcations” on page 1-36 The operator's check can be used as a quick 80% conﬁdence test. The only equipment

required for this check is a type-N cable and a good quality 50Ω type-N load (75Ω for Option 1EC analyzers).

The performance tests will verify that the analyzer meets its published speciﬁcations with greater than a 95% conﬁdence level. The performance tests require an external controller running HP BASIC and are completely automated.

The speciﬁcations provide a complete deﬁnition of the warranted and non-warranted characteristics of the analyzer.

1-2 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performing the Operator's Check

Performing the Operator's Check

The operator's check should be performed when you receive your instrument, and any time you wish to have conﬁdence that the analyzer is working properly. The operator's check does not verify conformance to speciﬁcations, but should give you a high degree of conﬁdence that the instrument is performing properly if it passes.

The operator's check consists of making the following measurements with the cable that was supplied with your analyzer:

8712ET/8714ET 8712ES/8714ES

transmission S21 and S broadband power broadband power

reﬂection S11 and S reﬂection

1.with a 50Ω or 75Ω load, instead of the cable

S11 and S

Equipment List

To perform the operator's check, you will need the following:

• A known good cable suc h as the one that was supplied with your analyzer. The cable you use should have ≤0.5 dB of insertion loss up to 1.3 GHz, and ≤0.75 dB of insertion loss from 1.3 to 3.0 GHz.

• A known good load (>40 dB return loss) that matches the test port impedance of your analyzer such as one from calibration kit HP/Agilent 85032B/E (50Ω) or HP/Agilent 85036B/E (75Ω).

NOTE The illustrations depicting the analyzer’s display in this section were made

using an 8714ET. Other models’ displays will have minor differences in annotation.

Service Guide 1-3

Performance Checks 8712ET/ES and 8714ET/ES

Enter

dBm

Default Response

Performing the Operator's Check RF Network Analyzers

Make a Transmission (or S21 and S12) Measurement(s)

1. Connect the equipment as shown in Figure 1-1. Use a known good cable such as the one that was supplied with your analyzer.

NOTE The quality of the cable will affect these measurements; make sure you

use a cable with the characteristics described in “Equipment List” on

page 1-3.

Figure 1-1 Equipment Setup for Performing the Operator’s Check

2. Press .

3. Press .

4. Press .

PRESET SCALE .1 POWER 0 CAL

5. Verify that the data trace falls within ±0.5 dB of 0 dB. See Figure 1-2 for a typical 8714 result. The 8712 should look similar, but will end at 1300 MHz.

1-4 Service Guide

8712ET/ES and 8714ET/ES Performance Checks

S12 Rev Trans

Default Response

RF Network Analyzers Performing the Operator's Check

Figure 1-2 Verify Transmission (or S

and S12) Measurement

Perform the following steps on ES model analyzers only.

6. Press .

7. Press .

MEAS 1 CAL

8. Verify again that the data trace falls within ±0.5 dB of 0 dB. See Figure 1-2.

Service Guide 1-5

Performance Checks 8712ET/ES and 8714ET/ES

Power

Start

MHz

Enter

dBm

Performing the Operator's Check RF Network Analyzers

Make a Broadband Power Measurement

1. Leave the cable connected to the analyzer as shown in Figure 1-1.

NOTE The quality of the cable will affect these measurements; make sure you use a

cable with the characteristics described in “Equipment List” on page 1-3.

Press .

3. If is not displayed, press .

MEAS 1

4. Press .

5. Press .

POWER 0

FREQ

SCALE 1

6. Verify that the data trace is within ±2 dB of 0 dBm. See Figure 1-3 for a typical 8714 result. The 8712 should look similar, but will end at 1300 MHz.

Figure 1-3 Verify Broadband Power Measurement

1-6 Service Guide

8712ET/ES and 8714ET/ES Performance Checks

S11 Reﬂ Port1

Reﬂection

Enter

dBm

Default 1-Port

S22 Reﬂ Port2

Default 1-Port

RF Network Analyzers Performing the Operator's Check

Make a Reﬂection (or S11 and S22) Measurement with a Cable

1. Leave the cable connected to the analyzer as shown in Figure 1-1. NOTE The quality of the cable will affect these measurements; make sure you use a

cable with the characteristics described in “Equipment List” on page 1-3.

Press .

3. For ES models, press . For ET models, press .

PRESET MEAS 1

4. Press .

5. Press .

6. Press .

SCALE 10 POWER 0 CAL

7. Verify that the data trace falls completely below −16 dB. See Figure 1-4 for a typical 8714 result. The 8712 should look similar, but will end at 1300 MHz.

Figure 1-4

Verify Reﬂection (or S11 and S22) Measurement

Perform the following steps on ES model analyzers only.

8. Press .

9. Press .

MEAS 1 CAL

10.Verify again that the data trace falls completely below −16 dB. See Figure 1-4.

Service Guide 1-7

Performance Checks 8712ET/ES and 8714ET/ES

S11 Reﬂ Port1

Reference Level

S22 Reﬂ Port2

Reference Level

Performing the Operator's Check RF Network Analyzers

Make a Reﬂection (or S11 and S22) Measurement with a Load

1. Disconnect the cable and connect a known good load to the RF OUT/PORT 1 test port as shown in Figure 1-5.

Figure 1-5 Connect the Load

2. For ES models, press .

Verify that the data trace falls below −30 dB. If the data trace is off the screen, press

MEAS 1

SCALE

and the key until the trace moves up onto the screen.

Perform the remaining steps on ES model analyzers only.

4. Disconnect the load from PORT 1 and connect it to PORT 2 as shown in Figure 1-6.

Figure 1-6 Connect the Load to Port 2 (ES Models only)

5. Press .

6. Verify that the data trace falls below −30 dB. If the data trace is off the screen, press

1-8 Service Guide

SCALE

MEAS 1

and the key until the trace moves up onto the screen.

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performing the Operator's Check

This concludes the operator's check. However, further conﬁdence can be obtained by performing the following:

•Measure a known ﬁlter to verify that its measured response is the same as is expected. (A 175 MHz ﬁlter is supplied with the analyzer.) Verify both the frequency accuracy and noise ﬂoor.

•Check broadband response with the ﬁlter using conversion-loss mode (same as B*/R*).

•If the analyzer's frequency accuracy is critical for your application, verify a CW frequency using a frequency counter. Verify to±.005% accuracy (for example,± 2500 Hz at 500 MHz). Ensure that the analyzer is placed in trigger-hold mode (press

Trigger Hold

) to measure frequencies.

If the Analyzer Fails the Operator’s Check

First, repeat the operator's check using a different cable and load to eliminate these as a possible cause of failure. Second, if the ﬂoppy disk from the factory labeled “Correction Constants” is available, reload the “Correction Constants” (CCs) perChapter 8,

“Correction Constants and Firmware.” (The ﬂoppy disk was shipped with the instrument

from the factory.) Then repeat the Operator’s Check. If your analyzer does not meet the criteria in the operator's check, your analyzer may need

adjustment or servicing. Contact any Agilent Technologies sales or service ofﬁce for assistance. Refer toTable 9-1on page9-7 for the nearest ofﬁce. Before shipping your analyzer, ﬁll out and attach the blue repair tag, located at the back of this manual.

Service Guide 1-9

Performance Checks 8712ET/ES and 8714ET/ES

PRINT RESULTS

Performance Test Software RF Network Analyzers

Performance Test Software

The performance test software provides automated tests for verifying that the analyzer meets its published speciﬁcations with greater than a 95% conﬁdence level. The performance test software must be run on an external controller running HP BASIC (the analyzer’s internal IBASIC cannot be used). The performance tests can be considered a check of the overall calibration of the instrument. Unlike the adjustments described in

Chapter 2, the performance test software only checks the performance of the analyzer. No

changes are made to the calibration constants stored in the instrument. When a performance test fails, usually one or more adjustments should be performed to attempt to improve the performance before repairing or replacing hardware.

Results of the automated performance tests can be printed out at any time. They include all speciﬁcations, limits, and uncertainties . Although no manual tests are provided, each of the automated tests is described in enough detail to allow a knowledgeable technician to perform all needed tests in an accurate manner. See “Performance Test Notes and

Descriptions” on page 1-23.

The printed test results list uncertainties for each measurement. These uncertainties are for reference only, and are not taken into consideration when making pass/fail determinations. The listed uncertainties do not depend on the level of the measured signal; they assume a signal at the speciﬁed level. Generally, uncertainties assume published speciﬁcations for all instruments and devices. For the 110 dB step attenuator and the 20 dB ﬁxed attenuator, device-speciﬁc calibration data is required.

Performance test record cards are not provided; the printed results of the automated performance testing serve as the test record for this product. See “ ” in

“Using the Program” on page 1-19 for details on pass/fail indications for individual tests.

When a test report contains no “FAIL” indicators, an analyzer is considered to have passed the performance tests.

Many instrument users require a periodic, documented check of instrument performance. This is usually referred to as a “periodic calibration.” Successful completion of the performance tests (no “FAIL” indicators) should sufﬁce for the requirements of a periodic calibration. Do not confuse the term “periodic calibration” with the terms “user calibration” or “default calibration” which both refer to measurement calibrations utilized by operators when measuring devices with the analyzer.

Required Software and Controller

The performance test software is written for an HP 9000 Series 200, 300, or 700 workstation (or equivalent), running HP BASIC 5.1 or greater. There is also a version available to run on a PC under HP BASIC for Windows with a GPIB interface card. Operation is essentially identical to that described for an HP workstation computer.

1-10 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performance Test Software

NOTE To order the performance test software, contact the nearest Agilent

Technologies sales or service ofﬁce listed inTable 9-1on page9-7. The workstation version is HP part number 08714-10001 (LIF format). The PC version is HP part number 08714-10002 (DOS format), and requires HP BASIC for Windows (HP model number E2060B), and a GPIB interface card.

The performance test software automates all the performance veriﬁcation tests for the 8712ET/ES and the 8714ET/ES. It will test all option combinations, including both 50Ω and 75Ω versions.

NOTE This program cannot be used to test an HP/Agilent 8711A, any HP/Agilent

871xB, or any HP/Agilent871xC. To test an HP/Agilent 8711A, order HP part number 08711-10011. To test an HP/Agilent 871xB, order HP part number 08712-10011. Both of these programs are in LIF format only. To test an HP/Agilent 871xC, order HP part number 08712-10017 (LIF format) or 08712-10018 (DOS format).

NOTE All the data ﬁles and conﬁguration ﬁles used in this program are compatible

with the previous 871xB and 871xC versions of this program. It is not necessary to regenerate or modify any of these ﬁles. If you are adding this program to the same directory as the 871xB/C software, only the main program ﬁle (CAL871XE) need be transferred.

The performance test software is provided on a single disk. You can run the program directly from the disk, although it is recommended that you run it from your system's hard disk for best performance. Generally, the program can be stopped, reset and re-run with little or no loss of data. The LIF version program will operate on a LIF-based system, or an SRM/HFS environment. The DOS version is limited to DOS environments.

Operation is a simple menu driven system with some softkey selections. For ease of use, the / / keys on your computer’s keyboard can always be used as

Return Enter Execute

softkey #1—the most frequently used key. NOTE All necessary instructions and test setup diagrams are contained within the

program.

A disk ﬁle is generated for each analyzer, and the results of each test are stored in that ﬁle. This ﬁle is updated after each test so that results will not be accidentally lost. A printout can be obtained for any previously tested analyzer.

Estimated Time

Before running the performance tests, turn on the analyzer and allow it to warm up for one hour. Performance test times are kept to a minimum, allowing analyzers to be fully tested within one to two hours after the initial warmup.

Service Guide 1-11

Performance Checks 8712ET/ES and 8714ET/ES Performance Test Software RF Network Analyzers

Equipment

In addition to a computer, printer, RF cables, BNC cables, GPIB cables, and adapters,

Table 1-1 lists the equipment that is required to test and adjust the analyzer.

Table 1-1 Required Equipment for Performance Tests

Description HP/Agilent Model #

Function generator 8116A or 33120A

Power meter

Power sensor, 50Ω 8482A Power sensor, 75Ω 8483A Cal kit type-N 50Ω 85032B Opt 001 Cal kit type-N 75Ω 85036B External 110 dB step

attenuator Attenuator/switch driver 11713A ✓✓

Spectrum analyzer 8560 series,

20 dB attenuator 50Ω 20 dB attenuator 75Ω 6 dB attenuator 50Ω 3 dB attenuator 50Ω 8491A/B/C Opt 003 3 dB attenuator 75Ω Power splitter, 50Ω Power splitter, 75Ω Minimum loss pad

(quantity: 2) Precision cable 50Ω 8120-8862 or 8120-6469

Precision cable 75Ω 8120-8898 or 8120-6468

437B, 438A E4418A or E4419A

8496A/G ✓✓

8566B 8491A/B/C Opt 020 ✓ —

0955-0768 — ✓ 8491A/B/C Opt 006 ✓ —

0955-0765 — ✓ 0955-0751,11667A ✓ — 0955-0752 — ✓ 11852B — ✓

50Ω

STD

75Ω

✓✓

— ✓

✓ —

— ✓

✓✓

✓ —

— ✓

No substitute. (The 8116A is preferred.)

Do not use an 436A.

Needed only if using an 8496G programmable 110 dB step attenuator.

Others may be substituted.

Notes

1. An 85032B Option 001 is a subset of the standard 85032B. This option eliminates four 7-mm adapters that are not needed, resulting in a signiﬁcant cost savings.

2. The spectrum analyzer used must be compatible with the 8566B , both in the GPIB commands for the basic remote control functions and in frequency accuracy. Any of the 856x series is acceptable, the 8560E is the least expensive. The 859x series is not acceptable because of the marginal frequency accuracy.

3. The 75Ω 20 dB attenuator can be substituted with two minimum loss pads and a 50Ω 10 dB attenuator. NOTE: a set of 75Ω attenuators (3,6,10,20 dB) is available as 86213A.

1-12 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performance Test Software

File Structure

The program disk contains several different ﬁles in addition to the main program ﬁle. The following list describes the ﬁles found on the performance test software disk.

CAL871XE This is the main program ﬁle. Cfg_xxxx This is the conﬁguration ﬁle. The variable

user-deﬁned name or

Dflt (default). This ﬁle contains all the conﬁguration

xxxx represents any

set-ups for the program such as:

• ﬁle directories and paths

• test equipment serial numbers

• GPIB addresses

• types of test equipment

• other optional choices If more than one conﬁguration ﬁle exists on the disk, the program will

prompt you to select a speciﬁc conﬁguration ﬁle to load. If none exists, the program will create a default ﬁle.

P1D_xxxx The cal factor ﬁle for the HP/Agilent 8481D sensor. The variable

xxxx

represents the last four digits of the HP/Agilent 8481D or HP/Agilent 8484A sensor's serial number.

P2A_xxxx The cal factor ﬁle for the HP/Agilent 8482A sensor. The variable xxxx

represents the last four digits of the 8482A sensor's serial number.

P3A_xxxx The cal factor ﬁle for the HP/Agilent 8483A sensor. The variable

xxxx

represents the last four digits of the 8483A sensor's serial number.

Stp_xxxx The actual attenuation values for the external 110 dB step attenuator. The

variable xxxx represents the last four digits in the attenuator's serial number. Attenuator values are measured at 30 MHz on an accurate system (such as an HP/Agilent 8902A Option 050).

Pd5_xxxx The actual value of the 20 dB 50Ω attenuator as measured by an accurate

system. Values are attenuation versus frequency. The variable

xxxx

represents the last four digits in the attenuator's serial number.

Pd7_xxxx The actual value of the 20 dB 75Ω attenuator as measured by an accurate

system. Values are attenuation versus frequency. The variable xxxx represents the last four digits in the attenuator's serial number.

dxxExxxx The data ﬁle that holds the analyzer's test results. The variable

xxxx

represents the last four digits in the analyzer's serial number. The ﬁle “d2TExxxx” holds data for an 8712ET, “d4SExxxx” for an 8714ES.

CurEDUTx The data ﬁle that holds the test results of the most recently tested

analyzer regardless of model or serial number. The variable

x can

represent any character 0 to 9.

Service Guide 1-13

Performance Checks 8712ET/ES and 8714ET/ES Performance Test Software RF Network Analyzers

INSTALL This program is not necessary but can help speed the installation of the

LIF version program. It automatically copies the required ﬁles into the desired location.

NOTE Several data ﬁles are present on the disk with the “xxxx” sufﬁx. These are

default ﬁles that allow operation of the program without correction factors. The values in these ﬁle are nominal values. For example: 100 percent for all sensor cal factors; 20 dB for the 20 dB attenuators; 10.00, 20.00, 30…dB for the external step attenuator , and so on. This is provided as a convenience only to demonstrate or learn about the program. The default conﬁguration ﬁle will access these ﬁles if no user-deﬁned serial number is speciﬁed. A warning message will be displayed if the program is using these default ﬁles.

Conﬁguration File

The conﬁguration (conﬁg) ﬁle is the ﬁle that customizes this program for your usage. It contains speciﬁc information for your setup. Some of the items contained in this ﬁle include:

• the GPIB addresses of all the test equipment

• the GPIB address of the analyzer under test

• the model numbers of the test equipment

• the serial numbers of sensors, ﬁxed attenuators, and the external 110 dB step attenuator

• the disk drive locations (path and directories)

• other items speciﬁc to your setup

Ideally, only one conﬁguration ﬁle should exist on the program disk so that the program will automatically load only that ﬁle. However, it is possible to have several conﬁguration ﬁles stored on the same disk. In this case, the program will list all of the available ﬁles and prompt you to select one. This is useful if more than one setup is commonly used or if one performance test software disk serves several workstations.

1-14 Service Guide

8712ET/ES and 8714ET/ES Performance Checks

SET TIME

RESUME

CONFIG

RF Network Analyzers Performance Test Software

Getting Started

CAUTION Make a copy of the performance test software disk for day-to-day use. The

master copy should remain stored in a safe place. This will decrease the likelihood of damage to the master disk.

NOTE The DOS version, which is used in conjunction with HP BASIC for Windows,

requires the proper setup of the GPIB interface card and drivers. This document assumes that users are familiar with HP BASIC for Windows , that it is running, and that it has been properly installed and conﬁgured.

First, ﬁnd all serial numbers of the calibration devices required, such as external step attenuators, sensors, and ﬁxed attenuators for both 50Ω and 75Ω devices (if applicable). Verify the GPIB addresses you will be using, as well as the mass storage directories and locations.

If you plan to operate this program only from the supplied ﬂoppy disk, insert the disk into the computer's disk drive and skip step 1 next.

Performance Test Software Installation

1. To install this program to the hard drive, either copy all ﬁles (except “INSTALL”) to the hard drive, or load and run the “INSTALL” program. The INSTALL program will automatically copy all required ﬁles to your speciﬁed destination drive or directory (HFS, SRM or LIF format). The INSTALL program is only contained in the LIF software version.

NOTE Any directory name used must be less than 80 characters long, and preferably

less than 60 characters, for best visibility.

2. Set the computer's “Mass Storage Is” (MSI) command to the directory or drive location of the main program ﬁle (CAL871XE).

3. GET and RUN the CAL871XE program. The program will display the initial screen with the software part number, revision date and current time/date. If the current time or date is incorrect, select the softkey to set it.

4. Press . Remember that the key can also be used as softkey #1.

5. Press to enter the conﬁguration screen. This menu allows you to enter all the speciﬁc information that pertains to your

particular conﬁguration (such as test equipment, addresses, and serial numbers). The conﬁguration ﬁle's selection descriptions and their initial default values are listed below.

Return

Service Guide 1-15

Performance Checks 8712ET/ES and 8714ET/ES Performance Test Software RF Network Analyzers

Conﬁguration Menu

In this section, the default values for the parameters listed in bold type appear in parenthesis.

The analyzer's GPIB address (716). The ﬁrst selection is the analyzer’s (DUT) GPIB

address. Please note that this is the only address that has both the Interface Select Code (ISC) and the device number associated with it. This address can be any valid address with any valid ISC. The ISC doesnot have to be the same as all the other test equipment (which must be all on the same ISC). Generally the full address for the DUT is set to either 716 or

816. This also sets the ISC to 7 or 8 respectively. The factory default GPIB device address for the analyzer is 16.

The ISC for the test equipment (7). This selection is the ISC for all the associated

test equipment. This is generally 7 or 8 and may be the same as that for the DUT.

The power meter model number (437B) and address (13). These two selections

are for the power meter model number and address. CAUTION The program will accept the 436A power meter as a valid selection, but it is

not recommended or supported and may cause the program to halt execution.

The spectrum analyzer (8566B) and address (18). This is the spectrum analyzer

selection. Any of the listed models will sufﬁce, but keep in mind that if you do not use a frequency counter, then the spectrum analyzer must have high degree of frequency accuracy since it will be used as the frequency counter.

The function generator model number (8116A or 33120A) and address (14).

This selection is for the function generator and address. The 8116A is the only valid selection at this time.

The attenuator switch driver model number (11713A) and address (28). Next

is the attenuator switch driver selection and address. At this time, the only two c hoices are the 11713A and “NONE”. If “NONE” is selected, the program will prompt you to manually set the external 110 dB step attenuator each time it needs to be changed. Since this is inconvenient, the use of an 11713A with a 8496G model attenuator is highly recommended.

The frequency counter model number (5342A) and address (02). The frequency

counter model number and its address are next. If “NONE” is selected, the program will use the spectrum analyzer to measure frequency accuracy.

The voltmeter model number (3456A) and address (22). This selection is not

currently used by this program.

1-16 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performance Test Software

The printer address (01). The printer address is next. No model number is needed

here; all GPIB printers should work equally well. For the DOS version, entering any valid number except 10 will direct the output to the attached GPIB printer. Selecting an address of 10 will redirect the output to the deﬁned Windows default printer. Typically this will be a printer attached to the computer's parallel port or a networked printer. On the DOS version (HP BASIC for Windows), the default address is set to 10.

The program directory and the mass storage unit speciﬁer (the current MSI device).

should point to the location of the CAL871XE program and all of its required data ﬁles (all the ﬁles contained on the disk). If you are running this program from a ﬂoppy disk, the program directory entry should be blank. If using an HFS or SRM system, the entire directory name should be entered here (e.g. /TESTS/ANALYZER/NETWORK/8712E). The entire length must be less than 80 characters (preferably less than 60 for easier viewing). The MSUS, which indicates the physical address of the disk drive , also has an 80-character limit. For the DOS version, this is typically just the drive letter (for example , C:). When the program is ﬁrst run, the default will be the current MSI device.

The program directory and Mass Storage Unit Speciﬁer (MSUS) are next. These

The data directory and MSUS. The next two entries are the data directory and

MSUS. These should point to the location where the results of each DUT will be stored (if applicable). The data directory and MSUS are otherwise similar to the program directory, including the defaults.

The sensor's, external 110 dB step attenuator's, and ﬁxed attenuator's (pad's) serial numbers (xxxx).

the serial numbers for the power meter sensors, the step attenuator, and the 20 dB attenuators. This allows the program to load the proper correction values for each device.

The disk contains ﬁles that match these default serial numbers (xxxx), but the correction data contained within these ﬁles is invalid (e.g. 100 percent for all sensor cal factors). This allows the program to be run for experimental or training purposes only. As a precaution, a warning message will be displayed if a default ﬁle is loaded.

Six of the next seven entries will contain the last four digits of

The step attenuator's 40 dB card selection (3). This selection is choice of the 40 dB

step section. The 8496G step attenuator contains one 10 dB section, one 20 dB section, and two 40 dB sections. This selection speciﬁes which of the two 40 dB attenuator card sections of the 8496G step attenuator is to be used; section 3 or 4. Enter the value (3 or 4) for which you have calibration data.

For example, when the step attenuator was calibrated, one of the two 40 dB sections was selected for the 40, 50, 60, and 70 dB attenuation value. The data corresponding to the selected 40 dB section must be input to ensure valid measurement data when using attenuations of 40 dB or greater. For purposes of identiﬁcation, section 3 of the attenuator is the section that is engaged when button #3 or #7 of the 11713A is lit.

This entry is not applicable if you are using a manual attenuator.

The beeper (on). The last selection will suppress or enable the beeper, as desired.

Service Guide 1-17

Performance Checks 8712ET/ES and 8714ET/ES

CAL DATA ENTRY

Performance Test Software RF Network Analyzers

The current DUT ﬁle sufﬁx (1). This ﬁle, “CurEDUTx,” contains the test-result data

of the current device under test. Up to ten different ﬁle names can be speciﬁed. This allows multiple users to operate from one system storage medium, such as an SRM environment. This entry can be ignored for single-user applications.

Conﬁg ﬁle and cal data generation.

1. Once all desired changes have been made, the program will ask if you want to store the data just entered. A speciﬁc 4-character ﬁle name sufﬁx can be provided if more than one conﬁguration is required. Leaving the ﬁle name blank will result in the default ﬁle name of “Cfg_dﬂt.” If the program ﬁnds only one conﬁg ﬁle, that ﬁle will be loaded automatically. If more than one is discovered, the program will list the ﬁle names found and allow you to choose one. At this point the program will also ask you if a hardcopy printout is desired.

2. After the conﬁg ﬁle has been generated, the proper data ﬁles containing the correction values must be generated. Press . You will be shown a list including:

• 3 sensors

• an external 110 dB step attenuator

• two 20 dB attenuators (pads) You will need to enter the correction data for every piece of test equipment included in

this list that you will be using to test the analyzer. Select the desired item.

Sensors. All sensors require both frequency and cal factor data. Frequencies must always

be in MHz and cal factors in percent. The ﬁrst entry requested will be the last four digits of the serial number. The computer will search for a current conﬁguration ﬁle containing this information. If one is present, the program will query you to either view or edit the old values.

Assuming you are editing the data, the 50 MHz reference cal factor will be requested next. This value must use percent as its units and be within the range of 50 and 150 percent.

After the cal factor is entered, the program will request that all frequency/cal factor pairs be entered. Any frequency entered must be greater than zero. You must start with the lowest frequency for which you have data and sequentially enter higher frequencies until done. Each entry must consist of both a frequency in MHz and the cal factor in percent, separated by a comma (e.g. 500, 98.6). Each frequency entered must be higher than the previous entry. These cal factor values must be between 75 and 125 percent.

TIP If a mistake is made, you can back up one entry and re-enter a value by

entering a negative frequency. If you accidentally enter only the frequency (instead of a frequency/cal factor pair), the computer will wait for the cal factor to be entered; however the only prompt will be a “?”.

Each entry is shown on the CRT. When all entries are completed, enter “0,0” to exit the data entry portion of the program. At this point the program will redisplay all of the values entered and ask if you want to store them. (Check to make sure there are no entries for a zero value frequency.)

1-18 Service Guide

8712ET/ES and 8714ET/ES Performance Checks

RESUME

SET TIME

HELP

EXIT

SET TIME

HELP

EXIT

RESUME

CONFIG

LOAD CONFIG

CAL DATA ENTRY

RF Network Analyzers Performance Test Software

TIP Even if you ﬁnd a mistake, it will be easier to answer yes, then go back and

re-edit the values. Otherwise you will have to re-enter all of the values again.

20 dB Attenuators (Pads). A procedure similar to the sensor data entry procedure is

used to enter the frequency/attenuation values for the 20 dB attenuators. Valid entries for the 20 dB attenuator range from 17.5 to 23.5 dB with all frequency entries being greater than zero.

External 110 dB Step Attenuator. Step attenuator data is only measured at 30 MHz

so only one value needs to be entered for each nominal attenuation step. All values are relative to the 0 dB setting, which is deﬁned as zero (i.e. the program does not care about insertion loss at the 0 dB setting).

Valid entries are within 3 dB of the nominal attenuation setting with all entries being greater than zero. The program will request data up to 110 dB of attenuation.

Using the Program

NOTE Remember that the / / key on your computer’s

Return Enter Execute

keyboard can be used as softkey #1.

When the program is ﬁrst run, the initial information screen is presented. This contains the program name, revision number, date and other miscellaneous information. You are presented with four softkey choices: , , , and .

allows you to set the time and date. If the date has never been set, the

program will force you to enter it regardless of whether or not this softkey is pressed.

will present some very brief instructions and other information.

will terminate the program.

will continue execution of the program and proceed to the main menu.

Main Menu

The main menu provides seven softkey choices. An eighth choice may be displayed if you are returning to this menu from the test selection menu.

allows you to deﬁne a particular conﬁguration of test equipment, mass storage, and GPIB addresses. This selection is described earlier in “Conﬁguration File” on page

1-14.

allows you to select one of several conﬁgurations to choose from. If only one is available, it is automatically loaded without further conﬁrmation. If several are available, you are instructed to select one.

attenuators. See “Conﬁguration File” on page 1-14.

Service Guide 1-19

allows you to enter correction factors for sensors, attenuators and

Performance Checks 8712ET/ES and 8714ET/ES

PRINT RESULTS

NEW DUT

GPIB Addr’s

EXIT

RESUME

Performance Test Software RF Network Analyzers

allows you to print or view test results from the current DUT or any previously tested analyzer, assuming the data was archived. You can also add comments or correct any header information that was previously entered.

Printed test results have a “pass/fail” column for indicating the outcome of each part of each test. The possible outcomes are

PASS Applies to a warranted speciﬁcation. The test has passed. FAIL Applies to a warranted speciﬁcation. The test has failed. Not Tested Indicates the test was performed, but the result was not checked. This is

usually due to limited capability of the test equipment.

No Spec Applies to a nonwarranted characteristic or typical parameter. The test

result is satisfactory (within the indicated limits).

No Spec* Applies to a nonwarranted characteristic or typical parameter. The test

result is marginal (outside the indicated limits). If the result is substantially outside the limit, there may be cause for concern about the proper operation of the analyzer.

will appear only after an analyzer has been tested. This softkey must be

selected before you begin to test another analyzer. NOTE This is the only way that the program can tell that the analyzer under test

has changed. Once selected, this softkey selection will disappear, indicating that the program is ready to search for a new analyzer model/serial number.

will display the current expected addresses of all required test equipment. In addition it will allow you to check each listed address for the presence of an active device. It will not indicate which device is set to which address. It only indicates whether or not the device at a given address is capable of handshaking properly. returns to the previous menu.

will continue the program and look for an analyzer at the speciﬁed address. Make sure that the power is switched on and that the GPIB cable is connected before pressing .

Once the program ﬁnds the analyzer, the serial number is interrogated and the disk is searched for any previous test results. If none are found, a message is displayed and you are then allowed to enter any pertinent data regarding this new DUT such as owner, technician, repair order, comments etc. The test selection menu is then presented.

1-20 Service Guide

8712ET/ES and 8714ET/ES Performance Checks

Set Serial Number

Step Attenuator Test

Measure Step Attenuator

Measure 20 dB Pad

Measure Step Attenuator

RF Network Analyzers Performance Test Software

Test Selection Menu

The test selection menu can be divided into three main categories:

• eleven automated analyzer performance tests

• four utility procedures

• two external broadband detector performance tests (HP/Agilent 86200B or 86201B) Data for each of the eleven performance tests is archived upon completion. The four utility programs are described as follows:

1. utility allows you to enter a serial number into the analyzer. This may be required after some types of repairs.

CAUTION Enter the number carefully; it cannot be easily changed once it has been

entered. If a mistake is made, it will be necessary to contact an Agilent Technologies service center for correction.

2. The is a cyclical stress test designed to show any weakness in the mechanical (and therefore, electrical) integrity of the built-in attenuator. (The attenuator is standard equipment on ES models and is supplied as Option 1E1 on ET models.) For each cycle, the attenuator card is switched in and out with each resulting trace measured. Minimum and maximum excursions are then noted. The test is performed at a low frequency and a high frequency. The number of cycles is selected by the user. A minimum of twenty-ﬁve is recommended. One hundred cycles will take about ﬁve to ten minutes depending upon computer speed. There is no pass/fail indication but trace variances of more than 0.1 dB should warrant further investigation or increased monitoring for signs of wear.

(external) is a utility ﬁle that uses a power meter to measure the actual insertion loss at 30 MHz for the 110 dB step attenuator. This routine should only be used as a last resort if no other method of obtaining data is available. Generally the attenuator should be measured using one of the following methods:

• sending the device to a calibration standards lab

• measuring the device with an 8753D with full two-port correction

• measuring the device with an 8902A Option 050

4. is similar to the utility, but is used for characterizing the 20 dB pad.

NOTE The listed uncertainties shown on the test results assume that one of these

three choices was used and not the built-in routine, which has a much higher degree of uncertainty.

Service Guide 1-21

Performance Checks 8712ET/ES and 8714ET/ES Performance Test Software RF Network Analyzers

The detector performance tests consists of an absolute power accuracy test and a frequency response test as described in the HP/Agilent 86200B/86201B RF Detectors User's and Service Guide. These tests are only for testing these two speciﬁc detector models. Archiving of data is not done for these tests.

Additional Information

The program gives full step-by-step instructions along with connection diagrams. For clarity, some of the required adapters may not be depicted in the connection diagrams. Generally, solid connection lines between devices indicate a cable connection, where as a dotted line indicates a direct connection (adapters may be required). All required equipment should be connected and switched on before proceeding with any test, since the program will occasionally need to write to a device before it is shown in the connection diagram. If the device is not connected, the program will time-out before the connection diagram is drawn. The time-out limit is set to 30 seconds for all devices. If the program should stop for any reason, the computer may be reset and the program run again with little or no loss of data (if a

SCRATCH C is not performed).

1-22 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performance Test Software

Performance Test Notes and Descriptions

The test descriptions explain how each test is performed in case it is necessary to perform them manually without the automated test software. They are also provided to give automated test users a general idea of what each test measures and how it is performed under computer control.

Before running or manually performing the performance tests, turn on the analyzer and allow it to warm up for one hour.

The performance tests relate to the analyzer’s speciﬁcations, listed inTable1-6,Table1-7,

Table1-8 andTable1-9 in“Speciﬁcations”starting on page 1-36. Each value listed in these

tables is classiﬁed as a “speciﬁcation,” a “characteristic,” a “nominal,” or a “typical.” If you are using the automated software, you can print the test results to indicate the outcome of each test. See “ ” in“Using the Program” on page 1-19 for an explanation of pass/fail information.

NOTE The numbers preceding each of the tests in this section correspond to the test

PRINT RESULTS

number in the automated performance tests.

Service Guide 1-23

Performance Checks 8712ET/ES and 8714ET/ES Performance Test Software RF Network Analyzers

PT01: Frequency Accuracy

This test measures the frequency accuracy of the output of the analyzer. Test Process.Set the analyzer to several CW frequencies while in trigger-hold mode.

Connect a frequency measuring device to the output of the analyzer. The device used to measure the frequency can either be a frequency counter or a spectrum analyzer with a high degree of frequency accuracy. If the network analyzer under test has Option 1EC (75Ω system impedance and connectors) a minimum loss pad will be required in order to connect a 50Ω frequency counter or spectrum analyzer.

Speciﬁcation Veriﬁed.This test veriﬁes the “Test Port Output: CW Accuracy” speciﬁcation inTable1-8 starting on page1-57.

If This Test Fails.Failures of this test are rare. If this test should fail by a small amount, adjust the reference crystal oscillator by performing the“Frequency Accuracy Adjustment”

on page 2-5. If it fails by a signiﬁcant amount, and the A3 fractional-N/reference

assembly's 10 MHz reference output is accurate, suspect excessive noise on the RF output of the source.

1-24 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performance Test Software

PT02: Gain Compression

This test measures narrowband gain compression at or near the maximum rated input levels for the analyzer.

Test Process.Set the power output to the lesser of +10 dBm or the maximum value for the analyzer’s model and option conﬁguration. Set the system bandwidth for narrow (250Hz). Perform an enhanced-response calibration for a transmission measurement. Measure transmission on a through cable over the full frequency range of the analyzer. Insert a 20dB ﬁxed attenuator and measure transmission again. The difference is compared to the known insertion loss of the calibrated 20 dB ﬁxed attenuator to determine gain compression. Gain compression must be less than the limit stated in the speciﬁcation.

This test process is performed once for an ET model analyzer and twice for an ES model (both forward and reverse directions).

Speciﬁcation Veriﬁed.This test veriﬁes the “Test Port Input: Maximum Input Level” speciﬁcation inTable1-9 starting on page1-63. In some cases, the test must be performed at a power level less than the +10 dBm level indicated in the speciﬁcation.

If This Test Fails.If this test fails, replace the PC board on the A5 receiver assembly.

Service Guide 1-25

Performance Checks 8712ET/ES and 8714ET/ES Performance Test Software RF Network Analyzers

PT03: Noise Floor

This test makes transmission (ratioed) measurements to determine the noise ﬂoor for both narrowband and broadband measurements.

Test Process.Preset the analyzer and set the power level to 0 dBm. Set the system bandwidth to Fine (15 Hz). Set the averaging factor to 4 and enable averaging. Connect loads to both test ports. Perform a Response and Isolation calibration. The peak value for a given measurement trace is considered to be the level of noise ﬂoor. For ES models repeat the test for an S12 measurement.

Repeat the test process above for a conversion loss measurement (without the Response and Isolation calibration). This will measure the broadband noise ﬂoor.

Speciﬁcation Veriﬁed.This test veriﬁes the “Test Port Input: Noise Floor” speciﬁcation inTable1-9 starting on page1-63. (The measurement process deﬁned above is considered to be equivalent to the measurement process described in the speciﬁcation’s footnote.)

If This Test Fails.First verify that all cable connections and screws are secure, then perform the“Switched Gain Correction, Adjustment #102” on page 2-10.

1-26 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performance Test Software

PT04: Dynamic Accuracy

This test measures narrowband ratio measurement accuracy over a range of power levels at 30 MHz. A 110 dB step attenuator is needed—typically an 8496A or 8496G is used. Two minimum loss pads must be used with a 75Ω analyzer (Option 1EC).

Test Process.Connect the step attenuator between the test ports on the analyzer. Set the CW frequency to 30 MHz and select ﬁne system bandwidth (15 Hz). Set the power to 0 dBm for 50Ω analyzers and to 13 dBm for 75Ω analyzers. Record the transmission (or S21) readings for attenuator settings from 0 dB through 90 dB, in 10 dB increments. Apply the correction factors for the attenuator setting for each reading before checking against the speciﬁcation. The reading at−20 dB should be used as the reference power. Use averaging, if necessary, to improve the test results. For ES models, repeat the test for S12 measurements.

Speciﬁcation Veriﬁed.This test veriﬁes the “Test Port Input: Dynamic Accuracy” speciﬁcation inTable1-9 starting on page1-63 the phase accuracy.

If This Test Fails.First, perform the“Switched Gain Correction, Adjustment #102” on

page 2-10. If the problem persists, suspect calibration errors in the step attenuator used to

perform this adjustment; see“The step attenuator's 40 dB card selection (3)” on page 1-17. Crosstalk can also affect this test; verify that all cables and screws are secure.

. It checks the magnitude accuracy, but not

Service Guide 1-27

Performance Checks 8712ET/ES and 8714ET/ES Performance Test Software RF Network Analyzers

PT05: Power Flatness

This test checks the maximum variation in output power across the frequency range of the analyzer.

Test Process.Connect a calibrated power sensor to the RF OUT/PORT 1 test port. Determine the power levels to test:

1.Refer to “Test Port Output: Power Sweep Ranges” inTable1-8 starting on page1-57.

2.Find the entry for the model and option conﬁguration of the analyzer under test.

3.In the “Attn = 0 dB” column of the table, the power sweep range is deﬁned in the form “ntoPmax”. Usen as one power level to measure, use Pmax as another power level to measure, and use the midpoint between the two as the third power level to measure.

4.If the analyzer under test is an ET model with Option 1E1, or an ES model, then also use a midpoint power level from each of the following three columns: “Attn = 10 dB”, “Attn = 20 dB” and “Attn = 30 dB”.

5.For each separate power level, record the reading on the power meter at 27 different frequencies, across the frequency range of the analyzer. Correct the power readings using the frequency ﬂatness data for the power sensor. The difference between the max and min values for the 27 readings should be within the speciﬁed ﬂatness limit as stated in “Test Port Output: Level Accuracy inTable1-8 starting on page1-57. Note that the speciﬁcations are listed in the form of±n dB. This equates to an allowable 2n variation (max−min). Measurement of power levels below−30 dBm are outside the speciﬁed range of the power sensor and should not be included in the test.

6.For ES models, make the same set of measurements in the reverse transmission direction (S12) with the power sensor connected to PORT 2.

NOTE Be sure to zero the power meter before making any series of measurements

below−19 dBm.

A second test is performed by the test software to check for obvious power level inconsistencies that might not be detected by the speciﬁcation check. It is a precaution to ensure that no power holes (drop-outs) exist. A through cable is connected and the analyzer is swept from 10 MHz to its high-end frequency using 1601 points per sweep. The resulting B* trace is checked for any signiﬁcant power holes that could have been missed during the previous section of this test. For all ES models and for ET models with Option1E1, repeat the full-sweep test for the three power levels tested in step 4 above.

When power holes are detected by this test, it is considered to be a failure of the speciﬁcation.

Speciﬁcation Veriﬁed.This test veriﬁes the “Test Port Output: Level Accuracy” speciﬁcation inTable1-8 starting on page1-57. Notice that values for 75Ω instruments above 2GHz are nonwarranted characteristics,not warranted speciﬁcations.

If This Test Fails.Repeat the test, verifying that all connections are secure. If the test still fails, perform the“Source Power Correction, Adjustment #104” on page 2-15.

1-28 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performance Test Software

PT06: Absolute Power Accuracy

This test veriﬁes the accuracy of the B* broadband detector from the maximum input level of +16dBm down to the speciﬁed noise ﬂoor. The test is designed to be performed at 30MHz, however 15 MHz may be used if the frequency range of the signal source does not extend to 30 MHz. The 8116A is the preferred signal source, however the 33120A may be used as an alternative. An external 110 dB step attenuator is used to vary the test signal over the power range to be tested.

Test Process.Connect the step attenuator to the output of the signal generator. Set the frequency to 30 MHz (preferred) or 15 MHz. Connect a 6 dB pad to the output of the step attenuator. For 75Ω analyzers, use a minimum loss pad in place of the 6 dB attenuator. Calibrate the power meter and use it to measure the output from the 6 dB pad. Set the step attenuator to 0 dB. Adjust the output from the signal generator so that the power output from the 6 dB pad is +16.0 dBm. Record the exact reading. Use calibration data from the power sensor to compensate for the frequency difference between the power meter calibration and the signal generator. Disconnect the power sensor and connect the 6dB pad to the RF IN/PORT 2 test port on the analyzer. Set the system bandwidth to narrow (250 Hz). Repeat the previously used steps for the signal generator output, and record the readings on B*. Switch the step attenuator as necessary to provide levels from +16 dBm to−44 dBm to the analyzer. Record the B* reading for each level and correct the readings using the calibration data for the step attenuator. Averaging may be used as needed. Each power reading on B* must meet the speciﬁed accuracy until the noise ﬂoor is reached.

Speciﬁcation Veriﬁed.This test veriﬁes the “Test Port Input: Power Accuracy” characteristic inTable1-9 starting on page1-63. In some cases, it may be performed at 15 MHz instead of the speciﬁed 30 MHz.

If This Test Fails.If you are using a programmable attenuator, ﬁrst verify that the correct 40 dB section of the step attenuator is being used. See“The step attenuator's 40 dB

card selection (3)” on page 1-17. If the correct attenuator is being used, perform the“B* Amplitude Correction, Adjustment #110” on page 2-21.

Service Guide 1-29

Performance Checks 8712ET/ES and 8714ET/ES Performance Test Software RF Network Analyzers

PT07: Broadband Frequency Response

This test checks the frequency response ﬂatness of the broadband B* detector. It is checked at a nominal−6 dBm signal level.

Test Process.Connect the output of the analyzer to a power splitter. Connect the power splitter outputs to the analyzer and to a calibrated power meter. Preset the analyzer and make sure the power level is set for 0 dBm. Step the analyzer through a cycle of approximately 12 CW frequencies while the B* and power meter readings are recorded. (The CW frequencies must include 10 MHz and 1.3 or 3.0 GHz, as appropriate.) Swap the output connections on the splitter and repeat the process. Average the two sets of readings to eliminate differences within the power splitter. Calculate the difference between the B* reading and the power meter reading for each frequency. Use a reading at 30 MHz as a reference. Subtract the reference from each of the other differences, and check the results against the speciﬁcation.

Adapters are generally required for this test. A 75Ω analyzer requires a 75Ω power splitter and power sensor. A power divider may be used in place of the power splitter.

Speciﬁcation Veriﬁed.This test veriﬁes the “Test Port Input: Broadband Flatness” characteristic inTable1-9 starting on page1-63. This test also veriﬁes the “Test Port Input: Frequency Range” speciﬁcation for broadband inTable 1-9.

If This Test Fails.Repeat the test after verifying that all connections are secure. There is no corresponding adjustment for this test.

1-30 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performance Test Software

PT08: Directivity

This test checks directivity, source match, and load match. The uncorrected (raw) directivity and source match values are derived from the measurement calibration arrays. Load match is checked using a calibration performed at the end of a through cable.

These tests require an 85032B calibration kit (standard or Option 001) for a 50Ω analyzer, or an 85036B calibration kit for a 75Ω analyzer. The standard economy (E) versions of these kits do not provide the necessary components to perform these procedures.

NOTE The three tests described below assume that an ES model is operating in the

forward (S21) direction. These tests should be repeated for the reverse direction (S12) on ES model analyzers.

Test Process for Directivity.Preset the analyzer and set the power level to 0 dBm.

Measure reﬂection on channel 1. Perform a “1-port” calibration on ET models, or a “user 1-port” calibration on ES models. Leave the load attached. Disable measurement calibration by pressing the following keys

Service Utilities Meas Cal Options Meas Cal

the reﬂection tracking array, press . Combine the traces by pressing . The resulting trace should be completely

DISPLAY

View Array Master Tracking

Data/Mem

SYSTEM OPTIONS

(OFF should be in caps). Access

Service

below the values for the speciﬁcation (not the typical). Test Process for Source Match.(These instructions assume that the directivity test has

been completed and that the calibration is still valid.) Access the source match array. To meet the speciﬁcation, the trace must be below the limit indicated in the speciﬁcation (not the typical). For example, if the speciﬁcation for 300 kHz to 1.3 GHz is 18 dB, the trace must be below−18 dB for that frequency range.

Test Process for Load Match.Preset the analyzer. Connect a type-N cable to the RFOUT/PORT 1 test port. Perform a 1-port calibration at the free end of the cable. Be sure to specify a male calibration kit (“Type-N (m)”). Note that during the open portion of the calibration, the extender pin must be placed over the center conductor of the cable. Connect the cable to RF IN/PORT 2. The reﬂection trace must be below the limits given in the load match speciﬁcation (not the typical).

Speciﬁcations Veriﬁed.These tests verify performance of the following items in the “System Performance, Uncorrected” category ofTable1-6on page1-55 andTable1-7on

page1-56:

•Directivity

•Source Match (ratio)

•Load Match

Service Guide 1-31

Performance Checks 8712ET/ES and 8714ET/ES Performance Test Software RF Network Analyzers

If This Test Fails. If directivity (uncorrected) fails, the most likely cause is a defective

coupler: the A coupler for the forward direction, or the B coupler for the reverse direction. Source match depends mostly on hardware in the A5 receiver assembly. Load match is solely dependent upon the A5 receiver assembly. If either of these two tests fail, ﬁrst inspect the two type-N connectors for damage, especially on 75Ω instruments. If load match fails, also suspect the A5 receiver assembly limiter or transfer switch.

1-32 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performance Test Software

PT09: Harmonics

This test uses a spectrum analyzer to measure harmonics on the network analyzer output at 18 different frequencies. Harmonics above 2.9 GHz are not checked.

Test Process.Connect the output of the analyzer to the spectrum analyzer with a high quality type-N cable. Step the analyzer through 18 CW frequencies, ranging from 0.3 MHz to 1440 MHz. Set the analyzer power to the maximum speciﬁed level for each frequency. Check all harmonics below 2.9 GHz for conformance to the speciﬁcation. When this test is performed under computer control, the time bases of the two instruments are connected and the network analyzer’s Ext Ref function is turned on.

Speciﬁcation Veriﬁed.This test veriﬁes the “Test Port Output: Signal Purity: Harmonics” speciﬁcation inTable1-8 starting on page1-57.

If This Test Fails.If the harmonics test fails, perform the“Source Power Correction,

Adjustment #104” on page 2-15. The most likely cause of a harmonics test failure is the A4

source assembly.

Service Guide 1-33

Performance Checks 8712ET/ES and 8714ET/ES Performance Test Software RF Network Analyzers

PT10: Trace Noise

This test checks trace noise magnitude on narrowband and broadband transmission measurements. The measurement trace is normalized to remove the effects of frequency response on the baseline. The marker statistics for standard deviation (SDev) are considered to be equivalent to an RMS calculation.

Test Process.Connect a through cable. Preset the analyzer and set the power level to 0dBm. Set the system bandwidth to narrow (250 Hz). Set the averaging factor to 8 and enable averaging. Normalize the trace, then turn off the averaging. Position marker 1 at the beginning of the trace and position marker 2 at the end of the trace. Use the marker math statistics feature to display the SDev value. SDev is equal to the RMS value of the trace noise.

Repeat this test for a conversion loss measurement, and set the start frequency to 10 MHz. For ES models, repeat this test for a reverse transmission (S12) measurement.

Speciﬁcation Veriﬁed.This test veriﬁes the “Test Port Input: Trace Noise” speciﬁcation inTable1-9 starting on page1-63.

If This Test Fails.When this test fails by less than 1/2 the speciﬁed value, try using an averaging factor of 16 or 32. Almost anything within the entire analyzer system can contribute to excessive trace noise. The most likely assemblies to fail are the A5, A4, and A3, in that order. If trace noise can be isolated to only one input (A, B or R), then the problem is most likely in the A5 receiver assembly. Otherwise, suspect A4 or A3.

1-34 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Performance Test Software

PT11: Crosstalk

This test measures the crosstalk between the output signal path and the input signal path inside the analyzer at maximum speciﬁed output power level. The test makes a narrowband transmission measurement with shorts connected to both test ports.

Test Process.Attach a short to each test port on the analyzer. Preset the analyzer and set the power level to the maximum power speciﬁed for the particular model/option conﬁguration of the instrument. Set the system bandwidth to ﬁne (15 Hz) and the averaging factor to 4. Enable averaging. Check the trace; it must be below the crosstalk limit given in the speciﬁcation. For example, if the speciﬁcation is 80 dB, the trace must be below−80 dB.

For ES models, repeat the test for a reverse transmission (S12) measurement. Speciﬁcation Veriﬁed.This test veriﬁes the “System Performance, Uncorrected:

Crosstalk” speciﬁcation inTable1-6on page1-55 andTable1-7on page1-56. If This Test Fails.Check cabling and shielding on the A4 source board and the A5

receiver assembly.

Service Guide 1-35

Performance Checks 8712ET/ES and 8714ET/ES Speciﬁcations RF Network Analyzers

Speciﬁcations

Deﬁnitions

All speciﬁcations and characteristics apply over a 25 °C ±5 °C range (unless otherwise stated) and sixty minutes after the instrument has been turned on.

Speciﬁcation (spec.): Warranted performance. Speciﬁcations include guardbands to account for the expected statistical distribution, measurement uncertainties, and changes in performance due to environmental conditions.

Characteristic (char.): A performance parameter that the product is expected to meet before it leaves the factory, but is not veriﬁed in the ﬁeld and is not covered by the product warranty. A characteristic includes the same guardbands as a speciﬁcation.

Typical (typ.): Expected performance of an average unit which does not include guardbands. It is not covered by the product warranty.

Nominal (nom.): A general descriptive term that does not imply a level of performance. It is not covered by the product warranty.

Calibration: The process of measuring known standards from a calibration kit to characterize the systematic (repeatable) errors of a network analyzer.

Corrected (residual) Performance: Indicates performance after error correction (calibration). It is determined by the quality of calibration standards and how well “known” they are, plus system repeatability, stability, and noise.

Uncorrected (raw) Performance: Indicates instrument performance without error correction. The uncorrected performance affects the stability of a calibration.

1-36 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers System Performance

System Performance

Table 1-2 System Performance, Corrected, 50Ω, 2-Port Calibration

8712ES/8714ES (50 Ω)

85031B (7-mm, 50 Ω) Cal Kit, User 2-Port Calibration

Speciﬁcation1 (in dB)

Description

Directivity 55 51 Source Match 51 49 Load Match 55 51 Reﬂection Tracking ±0.012 ±0.005 Transmission Tracking ±0.033 ±0.035

Transmission Uncertainty (Speciﬁcation)

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

1,2

Reﬂection Uncertainty (Speciﬁcation)

1. These speciﬁcations apply for measurements made using “ﬁne” bandwidth, no averaging, and at an environmental temperature of 25°±5 °C, with less than 1 °C deviation from the calibration temperature.

2. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

Service Guide 1-37

Performance Checks 8712ET/ES and 8714ET/ES System Performance RF Network Analyzers

Table 1-2 System Performance, Corrected, 50Ω, 2-Port Calibration (continued)

8712ES/8714ES (50 Ω)

85032B/E (Type-N, 50 Ω) Cal Kit, User 2-Port Calibration

Speciﬁcation1 (in dB)

Description

Directivity 50 47 Source Match 42 36 Load Match 50 47 Reﬂection Tracking ±0.02 ±0.02 Transmission Tracking ±0.04 ±0.055

Transmission Uncertainty (Speciﬁcation)

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

1,2

Reﬂection Uncertainty (Speciﬁcation)

2. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

1-38 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers System Performance

Table 1-2 System Performance, Corrected, 50Ω, 2-Port Calibration (continued)

8712ES/8714ES (50 Ω)

85033D (3.5 mm, 50 Ω) Cal Kit, User 2-Port Calibration

Speciﬁcation1 (in dB)

Description

Directivity 46 43 Source Match 44 41 Load Match 46 43 Reﬂection Tracking ±0.016 ±0.008 Transmission Tracking ±0.04 ±0.05

Transmission Uncertainty (Speciﬁcation)

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

1,2

Reﬂection Uncertainty (Speciﬁcation)

2. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

Service Guide 1-39

Performance Checks 8712ET/ES and 8714ET/ES System Performance RF Network Analyzers

Table 1-2 System Performance, Corrected, 50Ω, 2-Port Calibration (continued)

8712ES/8714ES (50 Ω)

85038A (7-16, 50 Ω) Cal Kit, User 2-Port Calibration

Speciﬁcation1 (in dB)

Description

Directivity 40 40 Source Match 37 37 Load Match 40 40 Reﬂection Tracking ±0.1 ±0.09 Transmission Tracking ±0.054 ±0.063

Transmission Uncertainty (Speciﬁcation)

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

1,2

Reﬂection Uncertainty (Speciﬁcation)

2. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

1-40 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers System Performance

Table 1-3 System Performance, Corrected, 75Ω, 2-Port Calibration

8712ES/8714ES (75 Ω)

85036B/E (Type-N, 75 Ω) Cal Kit, User 2-Port Calibration

Speciﬁcation1 (in dB)

Description

Directivity 48 43 Source Match 41 35 Load Match 48 43 Reﬂection Tracking ±0.021 ±0.02 Transmission Tracking ±0.042 ±0.062

Transmission Uncertainty (Speciﬁcation)

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

1,2

Reﬂection Uncertainty (Speciﬁcation)

2. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

Service Guide 1-41

Performance Checks 8712ET/ES and 8714ET/ES System Performance RF Network Analyzers

Table 1-3 System Performance, Corrected, 75Ω, 2-Port Calibration (continued)

8712ES/8714ES (75 Ω)

85039B (Type-F, 75 Ω) Cal Kit, User 2-Port Calibration

Speciﬁcation1 (in dB)

Description

Directivity 40 40 Source Match 30 30 Load Match 40 40 Reﬂection Tracking

Transmission Tracking

Transmission Uncertainty (Speciﬁcation)

300 kHz

to 1.0 GHz

±0.071 ±0.025 ±0.073 ±0.090

to 3 GHz

1,3

1.0 GHz

Reﬂection Uncertainty (Speciﬁcation)

2. Assumes using an 85039B cal kit, and a DUT with a center pin conforming to the 0.77 to 0.86 mm limits.

3. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

1-42 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers System Performance

Table 1-4 System Performance, Corrected, 50Ω, T/R Calibration

8712ES/8714ES (50 Ω)

85032B/E (Type-N, 50 Ω) Cal Kit, T/R Calibration

Speciﬁcation1 (in dB)

Description

Directivity 50 47 Source Match:

Reﬂection (One-Port Cal) 42 36 Transmission (Enhanced Response Cal) 42 36

Transmission (Response Cal) 18 15 Load Match 18 15 Reﬂection Tracking ±0.02 ±0.02 Transmission Tracking:

Enhanced Response Cal ±0.040 ±0.055

Response Cal ±0.17 ±0.3

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

Service Guide 1-43

Performance Checks 8712ET/ES and 8714ET/ES System Performance RF Network Analyzers

Table 1-4 System Performance, Corrected, 50Ω, T/R Calibration (continued)

8712ES/8714ES (50 Ω)

85032B/E (Type-N, 50 Ω) Cal Kit, T/R Calibration

Transmission Uncertainty: Enhanced Response Calibration

(Speciﬁcation)

1,2

Transmission Uncertainty: Response Calibration (Speciﬁcation)

Reﬂection Uncertainty: One-Port Calibration (Speciﬁcation)

1,2

2. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

1-44 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers System Performance

Table 1-4 System Performance, Corrected, 50Ω, T/R Calibration (continued)

8712ET/8714ET (50 Ω) with Attenuator Option 1E1

85032B/E (Type-N, 50 Ω) Cal Kit, T/R Calibration

Speciﬁcation2 (in dB)

Description

Directivity 50 47 Source Match:

Reﬂection (One-Port Cal) 42 36 Transmission (Enhanced Response Cal) 42 36

Transmission (Response Cal) 21 15 Load Match 18 15 Reﬂection Tracking ±0.02 ±0.02 Transmission Tracking:

Enhanced Response Cal ±0.039 ±0.055

Response Cal ±0.13 ±0.3

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

1. Option 1E1 adds a 60 dB step attenuator to the 8712ET and 871414ET.

2. These speciﬁcations apply for measurements made using “ﬁne” bandwidth, no averaging, and at an environmental temperature of 25°±5 °C, with less than 1 °C deviation from the calibration temperature.

Service Guide 1-45

Performance Checks 8712ET/ES and 8714ET/ES System Performance RF Network Analyzers

Table 1-4 System Performance, Corrected, 50Ω, T/R Calibration (continued)

8712ET/8714ET (50 Ω) with Attenuator Option 1E1

85032B/E (Type-N, 50 Ω) Cal Kit, T/R Calibration

Transmission Uncertainty: Enhanced Response Calibration

(Speciﬁcation)

Transmission Uncertainty: Response Calibration (Speciﬁcation)

2,3

Reﬂection Uncertainty: One-Port Calibration (Speciﬁcation)

1. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

3. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

1-46 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers System Performance

Table 1-4 System Performance, Corrected, 50Ω, T/R Calibration (continued)

8712ET/8714ET (50 Ω) without Attenuator

85032B/E (Type-N, 50 Ω) Cal Kit, T/R Calibration

Speciﬁcation1 (in dB)

Description

Directivity 50 47 Source Match:

Reﬂection (One-Port Cal) 42 36 Transmission (Enhanced Response Cal) 42 36

Transmission (Response Cal) 23 19 Load Match 18 15 Reﬂection Tracking ±0.02 ±0.02 Transmission Tracking:

Enhanced Response Cal ±0.039 ±0.052

Response Cal ±0.105 ±0.197

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

Service Guide 1-47

Performance Checks 8712ET/ES and 8714ET/ES System Performance RF Network Analyzers

Table 1-4 System Performance, Corrected, 50Ω, T/R Calibration (continued)

8712ET/8714ET (50 Ω) without Attenuator

85032B/E (Type-N, 50 Ω) Cal Kit, T/R Calibration

Transmission Uncertainty: Enhanced Response Calibration

(Speciﬁcation)

1,2

Transmission Uncertainty: Response Calibration (Speciﬁcation)

Reﬂection Uncertainty: One-Port Calibration (Speciﬁcation)

1,2

2. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

1-48 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers System Performance

Table 1-5 System Performance, Corrected, 75Ω, T/R Calibration

8712ES/8714ES (75 Ω)

85036B/E (Type-N, 75 Ω) Cal Kit, T/R Calibration

Speciﬁcation1 (in dB)

Description

Directivity 48 43 Source Match:

Reﬂection (One-Port Cal) 41 35 Transmission (Enhanced Response Cal) 41 35

Transmission (Response Cal) 18 15 Load Match 18 15 Reﬂection Tracking ±0.021 ±0.02 Transmission Tracking:

Enhanced Response Cal ±0.042 ±0.062

Response Cal ±0.17 ±0.3

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

Service Guide 1-49

Performance Checks 8712ET/ES and 8714ET/ES System Performance RF Network Analyzers

Table 1-5 System Performance, Corrected, 75Ω, T/R Calibration (continued)

8712ES/8714ES (75 Ω)

85036B/E (Type-N, 75 Ω) Cal Kit, T/R Calibration

Transmission Uncertainty: Enhanced Response Calibration

(Speciﬁcation)

1,2

Transmission Uncertainty: Response Calibration (Speciﬁcation)

Reﬂection Uncertainty: One-Port Calibration (Speciﬁcation)

1,2

2. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

1-50 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers System Performance

Table 1-5 System Performance, Corrected, 75Ω, T/R Calibration (continued)

8712ET/8714ET (75 Ω) with Attenuator Option 1E1

85036B/E (Type-N, 75 Ω) Cal Kit, T/R Calibration

Speciﬁcation2 (in dB)

Description

Directivity 48 43 Source Match:

Reﬂection (One-Port Cal) 41 35 Transmission (Enhanced Response Cal) 41 35

Transmission (Response Cal) 21 15 Load Match 18 15 Reﬂection Tracking ±0.021 ±0.02 Transmission Tracking:

Enhanced Response Cal ±0.04 ±0.062

Response Cal ±0.125 ±0.295

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

1. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

Service Guide 1-51

Performance Checks 8712ET/ES and 8714ET/ES System Performance RF Network Analyzers

Table 1-5 System Performance, Corrected, 75Ω, T/R Calibration (continued)

8712ET/8714ET (75 Ω) with Attenuator Option 1E1

85036B/E (Type-N, 75 Ω) Cal Kit, T/R Calibration

Transmission Uncertainty: Enhanced Response Calibration

(Speciﬁcation)

2,3

Transmission Uncertainty: Response Calibration (Speciﬁcation)

Reﬂection Uncertainty: One-Port Calibration (Speciﬁcation)

2,3

1. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

3. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

1-52 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers System Performance

Table 1-5 System Performance, Corrected, 75Ω, T/R Calibration (continued)

8712ET/8714ET (75 Ω) without Attenuator

85036B/E (Type-N, 75 Ω) Cal Kit, T/R Calibration

Speciﬁcation1 (in dB)

Description

Directivity 48 43 Source Match:

Reﬂection (One-Port Cal) 41 35 Transmission (Enhanced Response Cal) 41 35

Transmission (Response Cal) 23 19 Load Match 18 15 Reﬂection Tracking ±0.021 ±0.02 Transmission Tracking:

Enhanced Response Cal ±0.04 ±0.058

Response Cal ±0.11 ±0.2

300 kHz

to 1.3 GHz

1.3 GHz

to 3 GHz

Service Guide 1-53

Performance Checks 8712ET/ES and 8714ET/ES System Performance RF Network Analyzers

Table 1-5 System Performance, Corrected, 75Ω, T/R Calibration (continued)

8712ET/8714ET (75 Ω) without Attenuator

85036B/E (Type-N, 75 Ω) Cal Kit, T/R Calibration

Transmission Uncertainty: Enhanced Response Calibration

(Speciﬁcation)

1,2

Transmission Uncertainty: Response Calibration (Speciﬁcation)

Reﬂection Uncertainty: One-Port Calibration (Speciﬁcation)

1,2

2. For transmission measurements, the effect of crosstalk is neglected and S12 = S21 for S21 <1.0, S12 = 1 / S21 for S21 > 1.0.

1-54 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers System Performance

Table 1-6 System Performance, Uncorrected, 50Ω

8712ET/ES and 8714ET/ES (50 Ω)

8712ET/8714ET with

Description 8712ES/8714ES

300 kHz

to 1.3

GHz

Speciﬁcation2(in dB)

Directivity Source Match

(Ratio) Load Match Crosstalk

Typical2(in dB)

Directivity 40 35 42 32 42 32 Source Match

(Ratio) Load Match 24 21 24 22 24 22 Reﬂection Tracking ±2.0 ±2.0 ±1.0 ±1.5 ±1.0 ±1.0 Transmission

Tracking Crosstalk

29 23 29 21 29 23 18 15 21 15 23 19

18 15 18 15 18 15 88 88 97 97 97 97

23 20 26 21 30 23

±2.0 ±2.0 ±1.5 ±1.5 ±1.5 ±1.5

95 95 105 105 105 105

1.3 GHz

to 3 GHz

Attenuator Option

300 kHz

to 1.3

GHz

1E1

1.3 GHz

to 3 GHz

8712ET/8714ET

(without Attenuator)

300 kHz

to 1.3

GHz

1.3 GHz

to 3 GHz

1. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

2. These numbers apply for a measurement made using the “Fine” bandwidth at an environmental temperature of 25°±5 °C.

3. The uncorrected directivity of a network analyzer is calculated in linear terms by dividing the reﬂection measurement of an ideal load by the average of the reﬂection measurements of an ideal short and an ideal open.

4. The uncorrected source match is the source match of the network analyzer when making a ratioed, uncalibrated measurement.

5. The uncorrected load match is the match of the network analyzer port used on the load side of a measurement.

6. Measured by setting output power to the maximum speciﬁed setting, connecting shorts to both ports, and measuring transmission. Typical and speciﬁed crosstalk values are 5 dB worse than those shown in the table below 1 MHz (for all models) and above 2.2 GHz (for 8714ET/ES models).

Service Guide 1-55

Performance Checks 8712ET/ES and 8714ET/ES System Performance RF Network Analyzers

Table 1-7 System Performance, Uncorrected, 75Ω

8712ET/ES and 8714ET/ES (75 Ω)

8712ET/8714ET with

Description 8712ES/8714ES

300 kHz

to 1.3

GHz

Speciﬁcation2(in dB)

Directivity Source Match

(Ratio) Load Match Crosstalk

Typical2(in dB)

Directivity 40 30 40 30 40 30 Source Match (Ratio) 23 20 24 20 28 23 Load Match 24 22 24 22 24 22 Reﬂection Tracking ±1.5 ±1.5 ±1.0 ±1.5 ±1.0 ±1.0 Transmission

Tracking Crosstalk

27 19 27 19 27 18 18 15 21 15 23 19

18 15 18 15 18 15 88 88 97 97 97 97

±1.5 ±1.5 ±1.5 ±1.5 ±1.0 ±1.0

95 95 105 105 105 105

1.3 GHz

to 3 GHz

Attenuator Option

300 kHz

to 1.3

GHz

1E1

1.3 GHz

to 3 GHz

8712ET/8714ET

(without Attenuator)

300 kHz

to 1.3

GHz

1.3 GHz

to 3 GHz

1. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

2. These numbers apply for a measurement made using the “Fine” bandwidth at an environmental temperature of 25°±5 °C.

3. The uncorrected directivity of a network analyzer is calculated in linear terms by dividing the reﬂection measurement of a perfect load by the average of the reﬂection measurements of an ideal short and an ideal open.

4. The uncorrected source match is the source match of the network analyzer when making a ratioed, uncalibrated measurement.

5. The uncorrected load match is the match of the network analyzer port used on the load side of a measurement.

1-56 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Test Port Output

Test Port Output

Table 1-8 Test Port Output

8712ET/ES and 8714ET/ES Test Port Output

Description Speciﬁcation

Frequency

Range:

8712ET/ES 300 kHz to 1.3 GHz

8714ET/ES 300 kHz to 3.0 GHz Resolution 1 Hz Stability ±5 ppm, 0° to 55 °C, typ. CW Accuracy ±5 ppm at 25°±5 °C <1Hz at 10% change in line

voltage, typ.

Signal Purity

Harmonics:

8712ET/ES <−20 dBc at <1 MHz

<−30 dBc at >1 MHz

8714ET/ES <−30 dBc Nonharmonic Spurious:

8712ET/ES, <50 kHz from carrier <−25 dBc, char.

8712ET/ES, >50 kHz from carrier <−20 dBc at <1MHz, char.

<−30 dBc at >1MHz, char. 8714ET/ES, <50 kHz from carrier <−25 dBc, char. 8714ET/ES, >50 kHz from carrier <−30 dBc, char.

Phase Noise (at 10 kHz offset):

8712ET/ES <−67 dBc/Hz, char. 8714ET/ES <−67 dBc/Hz, char.

Residual AM (in 100 kHz bandwidth) <−50 dBc, nom. Residual FM (30 Hz to 15 kHz) <1.5 kHz peak, nom.

Supplemental

Information

Service Guide 1-57

Performance Checks 8712ET/ES and 8714ET/ES Test Port Output RF Network Analyzers

Table 1-8 Test Port Output (continued)

8712ET/ES and 8714ET/ES Test Port Output

Description Speciﬁcation

Supplemental

Information

Output Power

Level Accuracy:

8712ET:

50 Ω:

With Attenuator Option 1E1

±2.0 dB

Without Attenuator Option 1E1 ±1.0 dB

75 Ω:

With Attenuator Option 1E1

±3.0 dB

Without Attenuator Option 1E1 ±1.5 dB

8712ES:

50 Ω±2.0 dB 75 Ω±3.0 dB

8714ET:

50 Ω:

With Attenuator Option 1E1

±2.0 dB

Without Attenuator Option 1E1 ±1.0 dB

75 Ω:

With Attenuator Option 1E1

±3.0 dB at <2 GHz ±3.0 dB at >2 GHz, char.

Without Attenuator Option 1E1 ±1.5 dB at <2 GHz ±1.5 dB at >2 GHz, char.

8714ES:

50 Ω±2.0 dB 75 Ω±3.0 dB at <2 GHz ±3.0 dB at >2 GHz, char.

1. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

1-58 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Test Port Output

Table 1-8 Test Port Output (continued)

8712ET/ES and 8714ET/ES Test Port Output

Description Speciﬁcation

Output Power (continued)

Minimum Power Setting:

8712ET:

50 Ω:

With Attenuator Option 1E1

−60 dBm, nom.

Without Attenuator Option 1E1 0 dBm, nom.

75 Ω:

With Attenuator Option 1E1

−60 dBm, nom.

Without Attenuator Option 1E1 −3 dBm, nom.

8712ES:

50 Ω−60 dBm, nom. 75 Ω−60 dBm, nom.

8714ET:

50 Ω:

With Attenuator Option 1E1

−60 dBm, nom.

Without Attenuator Option 1E1 −5 dBm, nom.

75 Ω:

With Attenuator Option 1E1

−60 dBm, nom.

Without Attenuator Option 1E1 −8 dBm, nom.

8714ES:

50 Ω−60 dBm, nom. 75 Ω−60 dBm, nom.

Supplemental

Information

1. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

Service Guide 1-59

Performance Checks 8712ET/ES and 8714ET/ES Test Port Output RF Network Analyzers

Table 1-8 Test Port Output (continued)

8712ET/ES and 8714ET/ES Test Port Output

Description Speciﬁcation

Supplemental

Information

Output Power (continued)

<1 GHz >1 GHz

Maximum Power Setting:

8712ET:

50 Ω:

With Attenuator Option 1E1

15 dBm 12 dBm

Without Attenuator Option 1E1 16 dBm 13 dBm

75 Ω:

With Attenuator Option 1E1

12 dBm 9 dBm

Without Attenuator Option 1E1 13 dBm 10 dBm

8712ES:

50 Ω 13 dBm 10 dBm 75 Ω 10 dBm 7 dBm

8714ET:

50 Ω:

With Attenuator Option 1E1

10 dBm 9 dBm

Without Attenuator Option 1E1 11 dBm 10 dBm

75 Ω:

With Attenuator Option 1E1

7 dBm 6 dBm at <2 GHz 6 dBm at >2 GHz, char.

Without Attenuator Option 1E1 8 dBm 7 dBm at <2 GHz 7 dBm at >2 GHz, char.

8714ES:

50 Ω 9 dBm 7 dBm 75 Ω 6 dBm 4 dBm at <2 GHz 4 dBm at >2 GHz, char.

1. Maximum power setting is the highest power setting allowed that maintains the network analyzer’s speciﬁed level accuracy.

2. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

1-60 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Test Port Output

Table 1-8 Test Port Output (continued)

8712ET/ES and 8714ET/ES Test Port Output

Description Nominal (in dBm)

Output

Power Sweep Ranges: Attn =

0 dB

8712ET:

50 Ω:

With Attenuator Option 1E1

−1 to Pmax

Without Attenuator Option 1E1 0 to

Pmax

75 Ω:

With Attenuator Option 1E1

−4 to Pmax

Without Attenuator Option 1E1 −3 to

Pmax

8712ES:

50 Ω−3 to

Pmax

75 Ω−6 to

Pmax

8714ET:

50 Ω:

With Attenuator Option 1E1

−6 to Pmax

Without Attenuator Option 1E1 −5 to

Pmax

75 Ω:

With Attenuator Option 1E1

−9 to Pmax

Without Attenuator Option 1E1 −8 to

Pmax

8714ES:

50 Ω−8 to

Pmax

75 Ω−11 to

Pmax

Attn = 10 dB

−11 to 2 −21 to−8−31 to

Attn = 20 dB

−14 to−1−24 to

−11

−13 to 0 −23 to

−10

−16 to−3−26 to

−13

−16 to−1−26 to

−11

−19 to−4−29 to

−14

−18 to−3−28 to

−13

−21 to−6−31 to

−16

Attn = 30 dB

−18

−34 to

−21

−33 to

−20

−36 to

−23

−36 to

−21

−39 to

−24

−38 to

−23

−41 to

−26

Attn = 40 dB

−41 to

−28

−44 to

−31

−43 to

−30

−46 to

−33

−46 to

−31

−49 to

−34

−48 to

−33

−51 to

−36

Attn = 50 dB

−51 to

−38

−54 to

−41

−53 to

−40

−56 to

−43

−56 to

−41

−59 to

−44

−58 to

−43

−60 to

−46

Attn= 60 dB

−60 to

−48

−60 to

−51

−60 to

−50

−60 to

−53

−60 to

−51

−60 to

−54

−60 to

−53

−60 to

−56

1. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

2. Pmax = maximum power setting

Service Guide 1-61

Performance Checks 8712ET/ES and 8714ET/ES Test Port Output RF Network Analyzers

Table 1-8 Test Port Output (continued)

8712ET/ES and 8714ET/ES Test Port Output

Description Speciﬁcation Supplemental Information

Output Power (continued)

Power Resolution 0.01 dB Attenuator Switch Points:

8712ET:

50 Ω−1, −11, −21, −31, −41, −51 dBm, nom. 75 Ω−4, −14, −24, −34, −44, −54 dBm, nom.

8712ES:

50 Ω−3, −13, −23, −33, −43, −53 dBm, nom. 75 Ω−6, −16, −26, −36, −46, −56 dBm, nom.

8714ET:

50 Ω−6, −16, −26, −36, −46, −56 dBm, nom. 75 Ω−9, −19, −29, −39, −49, −59 dBm, nom.

8714ES:

50 Ω−8, −18, −28, −38, −48, −58 dBm, nom. 75 Ω−11, −21, −31, −41, −51 dBm, nom.

1-62 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Test Port Input

Test Port Input

Table 1-9 Test Port Input

8712ET/ES and 8714ET/ES Test Port Input

Description Speciﬁcation Supplemental Information

Frequency Range

8712ET/ES:

Narrowband 300 kHz to 1.3 GHz Broadband 10 MHz to 1.3 GHz

8714ET/ES:

Narrowband 300 kHz to 3.0 GHz Broadband 10 MHz to 3.0 GHz

Maximum Input Level

8712ET/8714ET +10 dBm at 0.5 dB

compression 8712ES and 8714ES: Narrowband, Frequency >1 MHz +10 dBm at 0.3 dB

compression Narrowband, Frequency <1 MHz +10 dBm at 0.5 dB

compression Broadband +16 dBm at 0.55 dB

compression

Damage Level

8712ET/8714ET +20 dBm; ±30 VDC 8712ES/8714ES +26 dBm; ±30 VDC

Broadband Flatness

8712ET/ES and 8714ET/ES ±1 dB, characteristic

Service Guide 1-63

Performance Checks 8712ET/ES and 8714ET/ES Test Port Input RF Network Analyzers

Table 1-9 Test Port Input (continued)

8712ET/ES and 8714ET/ES Test Port Input

Description

Spec.

(in dBm)

System Bandwidths:

Typical

(in dBm)

Fine (15 Hz)

Noise Floor

8712ET/8714ET:

50 Ω:

Narrowband −105 −111 −86 −48 Broadband (Internal) −50 −55 −48 −32

75 Ω:

Narrowband −104 −109 −84 −46 Broadband (Internal) −47 −52 −45 −30

8712ES/8714ES:

50 Ω:

Narrowband −96 −105 −80 −47 Broadband (Internal) −38 −43 −36 −23

75 Ω:

Narrowband −95 −104 −80 −47 Broadband (Internal) −35 −40 −33 −20

Fine (15 Hz)

Med Wide (4000 Hz)

1. Noise ﬂoor is deﬁned as the RMS value of the trace (in linear format) for a transmission measurement in CW Frequency mode, with the RF connectors terminated in loads, output power set to 0 dBm, and no averaging. The noise ﬂoor speciﬁcations and typicals for narrowband detection measurements assume that an isolation calibration has been performed using an average factor of 16. F or the 8712ES/8714ES, external broadband detectors will provide a lower noise ﬂoor than the internal broadband detectors.

Wide (6500 Hz)

1-64 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Test Port Input

Table 1-9 Test Port Input (continued)

8712ET/ES and 8714ET/ES Test Port Input

Description

Spec.

(in dB)

System Bandwidths:

Typical

(in dB)

Fine (15 Hz)

System Dynamic Range

8712ET:

50 Ω:

With Attenuator Option 1E12:

Narrowband 115 121 96 58 Broadband (Internal) 60 67 60 44

Without Attenuator Option 1E1

Narrowband 115 121 96 58 Broadband (Internal) 62 68 61 45

75 Ω:

With Attenuator Option 1E12:

Narrowband 110 118 93 55 Broadband (Internal) 53 61 54 39

Without Attenuator Option 1E1

Narrowband 113 119 94 56 Broadband (Internal) 56 62 55 40

Fine (15 Hz)

Med Wide (4000 Hz)

Wide (6500 Hz)

1. The System Dynamic Range is calculated as the difference between the receiver noise ﬂoor and the minimum of either the source maximum output (maximum power setting minus output power level accuracy) or the receiver maximum input. System Dynamic Range applies to transmission measurements only, since reﬂection measurements are limited by directivity. The System Dynamic Range for 8714ET/ES 75 Ω analyzers is not a speciﬁcation for frequencies >2 GHz; it is a characteristic. For the 8712ES/8714ES, external broadband detectors will provide more dynamic range than the internal broadband detectors.

2. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

Service Guide 1-65

Performance Checks 8712ET/ES and 8714ET/ES Test Port Input RF Network Analyzers

Table 1-9 Test Port Input (continued)

8712ET/ES and 8714ET/ES Test Port Input

Description

Spec.

(in dB)

System Bandwidths:

Typical

(in dB)

Fine (15 Hz)

System Dynamic Range1(continued)

8714ET:

50 Ω:

With Attenuator Option 1E12:

Narrowband 112 120 95 57 Broadband (Internal) 57 64 57 41

Without Attenuator Option 1E1

Narrowband 114 121 96 58 Broadband (Internal) 59 65 58 42

75 Ω:

With Attenuator Option 1E12:

Narrowband 107 115 90 52 Broadband (Internal) 50 58 51 36

Without Attenuator Option 1E1

Narrowband 110 116 91 53 Broadband (Internal) 53 59 52 37

Fine (15 Hz)

Med Wide (4000 Hz)

Wide (6500 Hz)

2. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.

1-66 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Test Port Input

Table 1-9 Test Port Input (continued)

8712ET/ES and 8714ET/ES Test Port Input

Description

Spec.

(in dB)

System Bandwidths:

Typical

(in dB)

Fine (15 Hz)

System Dynamic Range1(continued)

8712ES:

50 Ω:

Narrowband 104 115 90 57 Broadband (Internal) 46 53 46 33

75 Ω:

Narrowband 99 111 87 54 Broadband (Internal) 39 47 40 27

8714ES:

50 Ω:

Narrowband 101 112 87 54 Broadband (Internal) 43 50 43 30

75 Ω:

Narrowband 96 108 84 51 Broadband (Internal) 36 44 37 24

Fine (15 Hz)

Med Wide (4000 Hz)

Wide (6500 Hz)

Service Guide 1-67

Performance Checks 8712ET/ES and 8714ET/ES Test Port Input RF Network Analyzers

Table 1-9 Test Port Input (continued)

8712ET/ES and 8714ET/ES Test Port Input

Description

Spec.

(in dB)

System Bandwidths:

Typical

(in dB)

Fine (15 Hz)

Receiver Dynamic Range

8712ET/8714ET:

50 Ω:

Narrowband 115 121 96 58 Broadband (Internal) 66 71 64 48

75 Ω:

Narrowband 114 119 94 56 Broadband (Internal) 63 68 61 46

8712ES/8714ES:

50 Ω:

Narrowband 106 115 90 57 Broadband (Internal) 54 59 52 39

75 Ω:

Narrowband 105 114 90 57 Broadband (Internal) 51 56 49 36

Fine (15 Hz)

Med Wide (4000 Hz)

1. The Receiver Dynamic Range is calculated as the difference between the receiver noise ﬂoor and the receiver maximum input. Receiver Dynamic Range applies to transmission measurements only, since reﬂection measurements are limited by directivity. The Receiver Dynamic Range for 8714ET/ES 75 Ω analyzers is not a speciﬁcation for frequencies >2 GHz; it is a characteristic. For the 8712ES/8714ES, external broadband detectors will provide more dynamic range than the internal broadband detectors.

Wide (6500 Hz)

1-68 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Test Port Input

Table 1-9 Test Port Input (continued)

8712ET/ES and 8714ET/ES Test Port Input

Description Spec. Typical

System Bandwidths:

Narrow (250 Hz)

Trace Noise

8712ET/8712ES:

Narrowband:

Magnitude 0.01 dB rms 0.03 dB-pp 0.12 dB-pp 0.28 dB-pp Phase 0.2 Deg-pp 2.5 Deg-pp 3.4 Deg-pp

Broadband:

Magnitude 0.01 dB rms 0.01 dB-pp 0.02 dB-pp 0.15 dB-pp

8714ET/8714ES:

Narrowband:

Magnitude 0.01 dB rms 0.02 dB-pp 0.06 dB-pp 0.23 dB-pp Phase 0.2 Deg-pp 0.8 Deg-pp 1.8 Deg-pp

Broadband:

Magnitude 0.01 dB rms 0.01 dB-pp 0.03 dB-pp 0.16 dB-pp

Narrow (250 Hz)

Med Wide (4000 Hz)

Wide (6500 Hz)

1. Trace noise is deﬁned for a transmission measurement in CW mode, using a “through” cable having 0 dB loss, with the source set to 0 dBm, and the analyzer’s averaging function toggled off.

Service Guide 1-69

Performance Checks 8712ET/ES and 8714ET/ES Test Port Input RF Network Analyzers

Table 1-9 Test Port Input (continued)

8712ET/ES and 8714ET/ES Test Port Input

Dynamic Accuracy (Speciﬁcation)

8712ET/8714ET:

8712ES/8714ES:

1,2

1. Narrowband detection mode

2. The reference power for dynamic accuracy is −20 dBm.

1-70 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Test Port Input

Table 1-9 Test Port Input (continued)

8712ET/ES and 8714ET/ES Test Port Input

Power Accuracy: (Characteristic)

8712ET/8714ET1:

Magnitude

8712ES/8714ES1:

Magnitude

1. At 30 MHz, broadband mode, internal detectors

Service Guide 1-71

Performance Checks 8712ET/ES and 8714ET/ES Test Port Input RF Network Analyzers

Table 1-9 Test Port Input (continued)

8712ET/ES and 8714ET/ES Test Port Input

Group Delay Accuracy1 (Characteristic)

8712ET/ES and 8714ET/ES

1. Valid for 85032B/E (type-N 50 Ω) and 85036B/E (type-N 75 Ω) cal kits using either a two-port or enhanced response calibration.

1-72 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers General Information

General Information

Table 1-10 General Information

8712ET/ES and 8714ET/ES General Information

Description Speciﬁcation Supplemental Information

Display Range

Magnitude 200 dB (at 20 dB/div), max Phase 1800° (at 180°/div), max Polar 1 MUnit, max

Display Resolution

Magnitude 0.01 dB/div, min Phase 0.1°/div, min Polar 10 µUnit Full Scale, min

Reference Level Range

Magnitude 500 dB, max Phase 360°, max

Reference Level Resolution

Magnitude 0.01 dB, min Phase 0.01°, min

Marker Resolution

Magnitude 0.001 dB, min Phase 0.01°, min Polar 0.01 µUnit, min; 0.01°, min

Group Delay Aperture

Minimum 20% of frequency span Maximum frequency span ÷ (# of points − 1)

Group Delay Range

1 ÷ (2 x minimum aperture) The maximum delay is limited

to measuring no more than 180° of phase change within the minimum aperture.

Service Guide 1-73

Performance Checks 8712ET/ES and 8714ET/ES General Information RF Network Analyzers

Table 1-10 General Information (continued)

8712ET/ES and 8714ET/ES General Information

Description Speciﬁcation Supplemental Information

System Bandwidths

Wide (6500 Hz) 6500 Hz, nom Medium Wide (4000 Hz) 4000 Hz, nom Medium (3700 Hz) 3700 Hz, nom Medium Narrow (1200 Hz) 1200 Hz, nom Narrow (250 Hz) 250 Hz, nom Fine (15 Hz) 15 Hz, nom

Rear Panel

Auxiliary Input:

Connector Female BNC Impedance 10 kΩ, nom. Range ±10 V Accuracy ±3% (reading) + 20 mV Damage Level >+15 V; <−15V

External Trigger In/Out: Female BNC; Open-collector

with 681 Ω nom. pullup resistor to +5 V, nom. Normally high, pulsed low after each data point is measured.

Damage Level <−0.2 V; >+5.2 V

Limit Test Output: Female BNC; Open-collector

with 681 Ω nom. pullup resistor to +5 V, nom. Normally high, pulled low when limit test fails.

Damage Level <−0.2 V; >+5.2 V

User TTL Input/Output: Female BNC; Open-collector

with 681 Ω nom. pullup resistor to +5 V nom. Programmable as: high-sweep output; trigger input; general I/O for IBASIC.

Damage Level <−0.2 V; >+5.2 V

1-74 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers General Information

Table 1-10 General Information (continued)

8712ET/ES and 8714ET/ES General Information

Description Speciﬁcation Supplemental Information

Rear Panel (continued)

External Reference In:

Input Frequency 10 MHz, nom. Input Power −5 dBm to+12 dBm, nom. Input Impedance 50 Ω, nom.

VGA Video Output 15-pin mini D-Sub; female.

Firmware supports normal and inverse video color formats.

HPIB Type-57, 24-pin; Microribbon

female

X and Y External Detector Inputs

Parallel Port 25-pin D-Sub (DB-25); female LAN 8-pin RJ45; female RS232 9-pin D-Sub (DB-9); male Mini-DIN Keyboard/Barcode

Reader Line Power1:

Frequency 47 Hz to 63 Hz Voltage at 115 V setting 90 V to 132 V 115 V, nom. Voltage at 220 V setting 198 V to 264 VAC 230 V, nom. Power 300 VA, max 230 W, nom.

Front Panel

RF Connectors Type-N female; 50 Ω, nom.

Probe Power: 3-pin connector; male

Positive Supply 200 mA, max +15 V, nom; 0.75 A fuse, nom; Negative Supply 250 mA, max −12.6 V, nom; 0.75 A fuse, nom.

12-pin circular; female

6-pin mini DIN (PS/2); female

(With Option 1EC only:Type-N female; 75 Ω, nom.)

1. A third-wire ground is required.

Service Guide 1-75

Performance Checks 8712ET/ES and 8714ET/ES General Information RF Network Analyzers

Table 1-10 General Information (continued)

8712ET/ES and 8714ET/ES General Information

Description Speciﬁcation Supplemental Information

General Environmental

ESD Minimize using static-safe

work procedures and an antistatic bench mat (part number 9300-0797).

Dust Minimize for optimum

reliability.

Operating Environment

Temperature 0 °C to +55 °C Humidity 5% to 95% at +40 °C Altitude 0 to 4.5 km (15,000 ft)

Storage Conditions

Temperature −40° C to +70 °C Humidity 0% to 95% RH at +65 °C

(noncondensing)

Altitude 0 to 15.24 km (50,000 ft)

Cabinet Dimensions

Height × Width × Depth 179 × 425 × 514 mm, nom.

(7.0 × 16.75 × 20.25 in, nom.) Cabinet dimensions exclude front and rear protrusions.

Weight

Shipping 34.8 kg (77 lb), nom. Net 24.4 kg (54 lb), nom.

1-76 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers General Information

Table 1-10 General Information (continued)

8712ET/ES and 8714ET/ES General Information

Measurement Speed Conditions

Typical

Cal

Type

Number

of Chans

MeasBWNumber

of Points

Freq Span

Cycle

Time

Recall

State & Cal

Data Xfer

Meas Cycle

1-Port 1 6500 201 100 MHz 72 ms 1-Port 1 6500 201 2 GHz 0.16 s 1-Port 1 4000 11 100 MHz 37 ms 1-Port 1 4000 21 100 MHz 42 ms 1-Port 1 4000 51 100 MHz 55 ms 0.47 s 26 ms 0.63 s 1-Port 1 4000 101 100 MHz 76 ms 1-Port 1 4000 201 100 MHz 0.12 s 0.58 s 38 ms 0.76 s 1-Port 1 4000 201 2 GHz 0.18 s 1-Port 1 4000 401 100 MHz 0.21 s 1-Port 1 4000 801 100 MHz 0.38 s 1-Port 1 4000 1601 100 MHz 0.73 s 1.6 s 0.16 s 2.5 s 1-Port 1 3700 201 100 MHz 0.16 s 1-Port 1 3700 201 2 GHz 0.22 s 1-Port 1 1200 201 100 MHz 0.33 s 1-Port 1 1200 201 2 GHz 0.40 s 1-Port 1 250 201 100 MHz 1.5 s 1-Port 1 250 201 2 GHz 1.6 s 1-Port 1 15 201 100 MHz 12.3 s 1-Port 1 15 201 2 GHz 12.3 s 1-Port 2 4000 51 100 MHz 56 ms 0.63 s 58 ms 0.84 s 1-Port 2 4000 201 100 MHz 0.12 s 0.84 s 80 ms 1.1 s 1-Port 2 4000 1601 100 MHz 0.74 s 2.6 s 0.31 s 3.7 s 2-Port 1 4000 51 100 MHz 0.11 s 0.5 s 26 ms 0.72 s 2-Port 1 4000 201 100 MHz 0.24 s 0.67 s 38 ms 1.04 s 2-Port 1 4000 1601 100 MHz 1.5 s 2.2 s 0.16 s 3.95 s 2-Port 2 4000 51 100 MHz 0.11 s 0.71 s 60 ms 1.13 s 2-Port 2 4000 201 100 MHz 0.25 s 0.94 s 78 ms 1.47 s 2-Port 2 4000 1601 100 MHz 1.5 s 3.5 s 0.31 s 5.48 s

See footnotes on the following page.

Service Guide 1-77

Performance Checks 8712ET/ES and 8714ET/ES General Information RF Network Analyzers

1. Measurements are always made with error correction enabled.

2. Center frequency is set to 1 GHz.

3. “Cycle Time” is the time required for the analyzer to ﬁnish one complete sweep cycle including the forward sweep, retrace, bandcrossings, and calculation time when in the “Continuous Sweep” mode.

4. This is the time to recall both the system state and calibration data.

5. “Data Transfer” is performed using an HP S700 workstation. The GPIB port is used to transfer “corrected” 64-bit, ﬂoating point numbers (real and imaginary).

6. A “Measurement Cycle” is deﬁned as the time required for an HP S700 workstation to control the analyzer to: (1) recall the state and calibration (analyzer is now in “sweep hold” mode), (2) sweep (using the “:INIT1;*OPC?” command), and (3) transfer data. This may be less than the sum of the other columns since a complete “Cycle Time” doesn’t need to be done for the controller to transfer data.

1-78 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Features

Features

Measurement

Number of Display Measurements

Two measurement displays are available. Each measurement can have independent instrument sweep and control parameters (including frequency settings, IF bandwidth, power level, number of trace points, averaging, format, and scale). The instrument can display a single measurement or dual measurements, on a split (two graticules) or overlaid (one graticule) screen.

Measurement Choices

• Narrowband: ET models: reﬂection (A/R), transmission (B/R), A, B, R

ES models: S

• Broadband: X, Y, Y/X, X/Y, Y/R*, power (B*, R*), conversion loss (B*/R*)

NOTE: X and Y denote external broadband-detector inputs; * denotes internal broadband detectors.

(A/R), S22 (B/R), S21 (B/R), S12 (A/R), A, B, R

Formats

• rectilinear: log or linear magnitude, SWR

• phase, group delay, real and imaginary, Smith chart, and polar

Trace Functions

The analyzer can display current-measurement data, memory data or current-measurement with memory data simultaneously. Division of current-measurement data by memory data is also available.

Display Annotations

Analyzer display annotations include start/stop, center/span, or CW frequency, scale/division, reference level, marker data, softkey labels, warning and caution messages , screen titles, time and date, and pass/fail indication.

Limits

Measurement data can be compared to any combination of line or point limits for pass/fail testing. User-deﬁned limits can also be applied to an amplitude- or frequency-reference marker. A limit-test TTL output is available on the rear panel for external control or indiction. Limits are only available in rectilinear formats.

Service Guide 1-79

Performance Checks 8712ET/ES and 8714ET/ES Features RF Network Analyzers

Data Markers

Each measurement channel has eight markers. Markers are coupled between channels. Any one of eight markers can be the reference marker for delta-marker operation. Annotation for up to four markers can be displayed at one time.

Marker Functions

Markers can be used in absolute or delta modes. Other marker functions include: mkr→center, mkr→reference, mkr→electrical delay, searches, tracking, and statistics. Marker searches include: mkr to max, mkr to min, mkr→target, mkr bandwidth, notch, multi-peak, and multi-notch. The marker-tracking function enables continuous update of marker search values on each sweep. Marker statistics enable measurement of the mean, peak-to-peak, and standard deviation of the data between two markers. For rapid tuning and testing of cable-TV broadband ampliﬁers, slope and ﬂatness functions are also available.

Storage

Internal Memory

1.5 Mbytes of nonvolatile storage is available to store instrument states, measurement data, screen images, and IBASIC programs. Instrument states can include all control settings, limit lines, memory data, calibration coefﬁcients, and custom display titles. If no other data ﬁles are saved in nonvolatile memory, between about 30 and 150 instrument states (depending on the instrument parameters) can be saved. Approximately 32 Mbytes of volatile memory is also available for temporary storage of instrument states, measurement data, screen images, and IBASIC programs.

Disk Drive

Trace data, instrument states (including calibration data), and IBASIC programs can also be saved on ﬂoppy disks using the built-in 3.5” disk drive. All ﬁles are stored in MS-DOS®

-compatible format. Instrument data can be stored in binary or ASCII format (including Touchstone/.s1p format), and screen graphics can be saved as PCX (bit mapped), HP-GL (vector), or PCL5 (printer) ﬁles.

Network File System (NFS)

Remote ﬁles and directories, such as those stored on a computer, can behave like local ﬁles and directories stored within the analyzer through the use of NFS and the LAN interface. This allows test data from the analyzer to be saved directly to a remote directory—the remote machine does not have to initiate an ftp session to retrieve the data. The analyzer has a built-in NFS client. For Windows-based applications, third-party NFS-server software must be installed on the PC. NFS is fully supported in most versions of UNIX.

1-80 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Features

Data Hardcopy

Hardcopy prints can be made using PCL and PCL5 printers (such as HP DeskJet or LaserJet series of printers), or Epson-compatible graphics printers. Single color and multicolored formats are supported. Hardcopy plots can be automatically produced with HP-GL-compatible plotters such as the HP 7475A, or with printers that support HP-GL. The analyzer provides Centronics (parallel), RS-232C, GPIB, and LAN interfaces.

Automation

Controlling via GPIB

Interface: GPIB interface operates to IEEE 488.2 and SCPI standard interface

commands. Control: The analyzer can either be the system controller, or pass bus control to

another active controller. Data Transfer Formats:

• ASCII

• 32- or 64-bit IEEE 754 ﬂoating-point format

• mass memory-transfer commands allow ﬁle transfer between external controller and

analyzer

Controlling via LAN

The built-in LAN interface and ﬁrmware support data transfer and control via direct connection to a 10 Base-T (Ethertwist) network. A variety of standard protocols are supported, including TCP/IP, sockets, ftp, http, telnet, bootp, and NFS. The LAN interface is a standard feature.

SCPI: The analyzer can be controlled by sending Standard Commands for Programmable Instruments (SCPI) commands within a telnet session or via a socket connection and TCP/IP (the default socket port is 5025). The analyzer’s socket applications programming interface (API) is compatible with Berkeley sockets, Winsock and other standard socket APIs. Socket programming can be done in a variety of environments, including C programs, HP VEE, SICL LAN, or Java applets. A standard web browser and the analyzer’s built-in web page can be used to remotely enter SCPI commands via a Java applet.

FTP: Instrument state and data ﬁles can be transferred via ﬁle-transfer protocol (ftp). An internal dynamic data disk, which is an ftp directory, provides direct access to instrument states, screen dumps, trace data, and operating parameters..

HTTP: The instrument’s built-in web page can be accessed with any standard web browser using hypertext transfer protocol (http) and the analyzer’s IP address. The built-in web page can be used to control the network analyzer, view screen images, download documentation, and link to other sites for ﬁrmware upgrades and VXIplug&play drivers. Some word processor and spreadsheet programs, such as Microsoft Word 97 and Excel 97, provide methods to directly import graphics and data with http via a LAN connection.

Service Guide 1-81

Performance Checks 8712ET/ES and 8714ET/ES Features RF Network Analyzers

SICL LAN: SICL LAN is a LAN protocol using the Standard Instrument Control Library (SICL). It provides control of your analyzer over the LAN using a variety of computing platforms, I/O interfaces, and operating systems. With SICL LAN, a remote analyzer can be controlled over the LAN with the same methods used for a local analyzer connected directly to the controller with GPIB. SICL LAN can also be used with Windows 95/98/NT, or HP-UX.

Bootp: Bootstrap protocol (bootp) allows a network analyzer to automatically conﬁgure itself at power-on with the necessary information to operate on the network. After a bootp request is sent by the analyzer, the host server downloads an IP address, a gateway address, and a subnet mask. In addition, the analyzer can request an IBASIC ﬁle, which automatically executes after the transfer is complete. For Windows-based applications, third-party bootp-server software must be installed on the PC. Bootp is fully supported in most versions of UNIX.

Programming using IBASIC

As a standard feature, all 8712ET/ES and 8714ET/ES network analyzers come with the Instrument BASIC programming language (IBASIC). IBASIC facilitates automated measurements and control of other test equipment, improving productivity. For simpler applications, you can use IBASIC as a keystroke recorder to easily automate manual measurements. Or, you can use an optional, standard PC keyboard to write custom test applications that include:

• special softkey labels

• tailored user prompts

• graphical setup diagrams

• barcode-reading capability

• control of other test instruments via the GPIB, serial or parallel interfaces

Measurement Calibration

Measurement calibration signiﬁcantly reduces measurement uncertainty due to errors caused by system directivity, source match, load match, frequency response, and crosstalk. The analyzer features factory-installed default calibrations that use vector error correction, so that measurements can be made on many devices without performing a user calibration.

For greater accuracy, especially for special test setups with signiﬁcant loss or reﬂection, user calibrations should be performed. For reﬂection measurements, both one-port and two-port calibrations are available (two-port calibration requires an ES model). For transmission measurements, the following calibrations are available: response, response and isolation, enhanced response, and two-port (two-port calibration requires an ES model).

1-82 Service Guide

8712ET/ES and 8714ET/ES Performance Checks

Isolation on OFF

RF Network Analyzers Features

Calibration Interpolation

Calibration interpolation is always active. The analyzer automatically recalculates the error coefﬁcients when the test frequencies or the number of points have changed. The resulting frequency range must be within the frequency range used during the user calibration. If this is not the case, the analyzer reverts to the factory default calibration. When calibration interpolation is used, the analyzer displays the C? annotation. System performance is not speciﬁed for measurements using calibration interpolation.

Available Calibrations

ES models only

• Two-Port Calibration Compensates for frequency response, load match, source match, and directivity errors while making S-parameter measurements of transmission (S reﬂection (S

, S22). Compensates for crosstalk when the softkey

is toggled ON. Requires open, short, load, and through standards.

ET and ES models: transmission measurements

• Normalization

Simultaneous magnitude and phase correction of frequency response errors. Requires a through connection. Used for both narrowband and broadband detection. Does not support calibration interpolation.

, S12) and

• Response Simultaneous magnitude and phase correction of frequency response errors. Requires a through connection.

• Response and Isolation Compensates for frequency response and crosstalk errors. Requires a load termination on both test ports and a through standard.

• Enhanced Response

Compensates for frequency response and source match errors. Requires open, short, load and through standards.

ET and ES models: reﬂection measurements

• One-Port calibration

Compensates for frequency response, directivity, and source match errors. Requires an open, short, and load standards.

Service Guide 1-83

Performance Checks 8712ET/ES and 8714ET/ES Features RF Network Analyzers

Calibration Kits

Data for several standard calibration kits are stored in the instrument for use by calibration routines. They include:

• 3.5 mm (85033D with Option 001

• type-F 75 ohm (85039B)

• type-N 50 ohm (85032B with Option 001

• type-N 75 ohm (85036B/E

)

• 7 mm (APC-7) (85031B)

• 7-16 (85038A

3/F4/M5

)

In addition, you can also describe the standards for a user deﬁned kit (for example, open-circuit capacitance coefﬁcients, offset short length, or through-standard loss).

For more information about calibration kits available from Agilent Technologies, consult the RF Economy Network Analyzers Conﬁguration Guide, literature number 5967-6315E.

)

, or 85032E2)

1. Option 001 doesn’t include 7 mm adaptors.

2. “E” version doesn’t include adaptors or cal standards with female connectors.

3. Contains cal standards with female connectors and male connectors.

4. Contains cal standards with female connectors only.

5. Contains cal standards with male connectors only.

1-84 Service Guide

8712ET/ES and 8714ET/ES Performance Checks RF Network Analyzers Features

Options

75 Ohms (Option 1EC)

Provides 75 ohm system impedance.

Fault location and structural return loss (Option 100)

For fully characterizing cable performance and antenna-feedline systems, this option provides both fault location and structural return loss capability. Fault-location measurements help identify where cable or system faults, such as bends, shorts, or corroded or damaged connectors, occur. In addition to displaying faults in terms of distance into the cable or feedline, the magnitude of the fault is also displayed.

Structural return loss is a special case of return loss (reﬂection) measurements, optimized for measuring periodic reﬂections of small magnitude. These periodic reﬂections can occur from physical damage to the cable caused by rough handling, or from minor imperfections imparted during the manufacturing process. Structural return loss problems occur when these periodic reﬂections sum at half-wavelength intervals, causing high signal reﬂection (and low transmission) at the corresponding frequency.

Step Attenuator (Option 1E1): 8712ET/8714ET only

This option adds a built-in 60 dB step attenuator, extending the source output power low-end range to −60 dBm. This attenuator is a standard feature on the 8712ES/8714ES.

Transport case and fault location and structural return loss (Option 101)

Combines a rugged transport and operation case (part number 08712-60059) with Option 100 for ﬁeld measurements of fault location and structural return loss.

Test Sets

87050E multiport test sets

Provides a complete solution for testing 50 ohm multiport devices like duplexers, power dividers, or multi-couplers. Test sets can be conﬁgured with four, eight, or twelve test ports (for more information, please consult the product brochure, literature number 5968-4763E).

87075C multiport test sets

Provides a complete solution for testing 75 ohm multiport devices like CATV distribution ampliﬁers or multi-taps. Test sets can be conﬁgured with six or twelve test ports (for more information, please consult the product brochure, literature number 5968-4766E).

Switching test sets

Switching test sets enhance productivity by allowing multiple measurements with a single connection to the device under test. They are available in 50 and 75 ohm versions, in a variety of conﬁgurations and connector types. Please contact your sales representative for more information.

Service Guide 1-85

8712ET/ES and 8714ET/ES RF Network Analyzers

2Adjustments

Service Guide 2-1

Adjustments 8712ET/ES and 8714ET/ES Introduction RF Network Analyzers

Introduction

This chapter contains procedures to adjust the analyzer. Generally these adjustment procedures are only used when hardware has been replaced in the instrument, or if there is a failure in the operators check or the performance tests (seeChapter 1). Refer to

Table3-1, “Post Repair Procedures,” on page3-23 to determine which adjustment

procedures you need to do when a particular part has been replaced. Adjustments #102 through #111 affect the correction constants that are stored in the

non-volatile memory of the instrument. As adjustments are performed, new correction constants are created.The user controls when the new correction constants are stored in the non-volatile memory. The frequency accuracy adjustment, which could require a potentiometer adjustment, and the serial number (Adjustment #100) do not affect the correction constants.

Before performing adjustments, turn on the analyzer and allow it to warm up for one hour. Most adjustments are accessed through the analyzer's service menus.

You should perform the adjustment procedures in the order given here:

1.”Frequency Accuracy Adjustment”on page 2-5

2.”Switched Gain Correction, Adjustment #102”on page 2-10

3.”External Detector Gain Correction, Adjustment #103”on page 2-12

4.”Auxiliary Input Correction, Adjustment #111”on page 2-14

5.”Source Power Correction, Adjustment #104”on page 2-15

6.”B Amplitude Correction, Adjustment #105”on page 2-18

7.”Reﬂection (One-Port) Correction, Adjustment #107”on page 2-19

8.”Transmission Correction, Adjustment #106”on page 2-20

9.”B* Amplitude Correction, Adjustment #110”on page 2-21

10.”R* Amplitude Correction, Adjustment #108”on page 2-23

11.”R* Frequency Response Correction, Adjustment #109”on page 2-25

CAUTION Procedures 2 through 11 all generate correction constants. For efﬁcient operation,

these correction constants must be handled properly. Please read the“Correction

Constants (CCs) Storage” on page2-4 carefully.

CAUTION The preset power level is user-deﬁnable. After pressing in any

adjustment procedure, change the power level to 0 dBm if necessary.

PRESET

NOTE During the adjustments, the analyzer will display a list of instructions in which the

names for the connectors may vary. For user clariﬁcation, “REFLECTION,” “RF OUT,” and “PORT 1” all refer to the connector closest to the analyzer’s display, while “TRANSMISSION,” “RF OUT,” and “PORT 2” all refer to the connector farthest from the display.

2-2 Service Guide

8712ET/ES and 8714ET/ES Adjustments RF Network Analyzers Introduction

Required Equipment

Table 2-1 Required Equipment for Adjustments

Description HP/Agilent Model #

Power meter

Power sensor, 50Ω 8482A Low power sensor

Cal kit type-N 50Ω Cal kit type-N 75Ω

6 dB attenuator 50Ω 8491A/B/C Opt 006

10 dB attenuator 50Ω

10 dB attenuator 75Ω

20 dB attenuator 50Ω 8491A/B/C Opt 020

20 dB attenuator 75Ω

Minimum loss pad 11852B — ✓ Frequency counter 535xB or equivalent

Precision cable 50Ω 8120-8862 or 8120-6469 ✓ — Precision cable 75Ω 8120-8898 or 8120-6468 — ✓

Voltage reference source 08712-60031

10 dB attenuator 50Ω 8491A, Option 010

BNC cable, 50Ω 8120-1839 or equivalent Adapter, type-N (m) to

BNC (f)

1. An 85032B Option 001 is a subset of the standard 85032B. This option eliminates four 7-mm adapters that are not needed, resulting in a signiﬁcant cost savings.

2. The required attenuators depend on the ﬁrmware revision of the analyzer. The attenuators listed above apply to all versions of ﬁrmware.

3. The frequency counter is useful when very accurate frequency measurements are needed. However, if you are using a synthesized spectrum analyzer, the frequency can be measured by using the spectrum analyzer. Note that the frequency measurement using a spectrum analyzer will not be quite as accurate as a frequency counter, but is sufﬁcient in most cases. (An 8560 series spectrum analyzer may be used.)

437B, 438A E4418A, E4419A

8481D or 8484A

85032B Opt 001 85036B

8491A/B/C Opt 010

0955-0767

0955-0768 — ✓

1250-0780 or equivalent

50Ω

75Ω Notes

STD

✓✓

Do not use an 436A.

✓✓ ✓✓

For the ES models and ET Option 1E1.

✓ —

— ✓

✓ —

— ✓

✓ —

——

✓✓ ✓

Required for adjustments only if analyzer does not have an internal attenuator installed.

Required for adjustments only if analyzer does not have an internal attenuator installed. (May substitute 2 min loss pads.)

Required for adjustments only if analyzer does not have an internal

attenuator installed. Required for adjustments only if

analyzer does not have an internal attenuator installed. (May substitute 2 min loss pads and a 50Ω 10 dB pad.)

May not be required.

Included in the service kit, part number 08712-60012.

— Generally not needed; occasionally

required for adjustment #104.

✓✓ ✓✓

Service Guide 2-3

Adjustments 8712ET/ES and 8714ET/ES

Service

Update Corr Const

Store CC to EPROM

Service

Update Corr Const

Store CC to Disk

Correction Constants (CCs) Storage RF Network Analyzers

Correction Constants (CCs) Storage

During normal operation, the network analyzer uses correction constants that are stored in the RAM buffer. When the analyzer's line power is switched on, the analyzer copies the current correction constants from the CPU EPROM into the RAM buffer.

During the adjustment tests, the analyzer generates correction constants and saves them to the RAM buffer only. If the power is switched off without performing the steps below , the newly generated correction constants will be lost.

To transfer the newly generated correction constants from the RAM buffer to the CPU EPROM, press the following keys:

SYSTEM OPTIONS

To make a backup copy of the correction constants to a 3.5" disk, perform the following steps:

1. Insert a formatted 3.5" disk into the analyzer’s internal disk drive.

2. Press . This creates a ﬁle (or writes over an existing ﬁle) where the correction constants are stored. This ﬁle allows you to quickly restore the adjustment data if you replace the CPU board.

When performing the adjustment procedures, it is beneﬁcial to store the correction constants to the 3.5" disk. This allows you to restore data quickly in case you need to switch off the analyzer's line power before completing the adjustments.

CAUTION If the analyzer's line power is switched off at any time during the

SYSTEM OPTIONS

adjustments, you must reload the previously stored correction constants (if they have been saved to disk) before proceeding. Failure to do so will result in the loss of previously performed adjustment data at the time of the next correction constant data save. The adjustments will have to be performed again.

If the correction constants were never saved to disk, the adjustments will have to be performed again as well.

2-4 Service Guide

8712ET/ES and 8714ET/ES Adjustments RF Network Analyzers Frequency Accuracy Adjustment

Frequency Accuracy Adjustment

In this adjustment, the frequency accuracy of the analyzer's source is calibrated by adjusting the 10 MHz internal reference clock.

Required Equipment

Recommended HP/Agilent

Equipment Description

For 50Ω Analyzers For 75Ω Analyzers

Model or Part Number

Frequency counter BNC cable Minimum loss pad Adapter, type-N(m) to BNC(f)

535xB

8120-1839

N/A

1250-0780

Warmup Time

Allow the analyzer to warm up for one hour.

Estimated Adjustment Time

This adjustment takes approximately ﬁve minutes to perform.

Procedure

1. Connect the equipment as shown in Figure 2-1.

Figure 2-1 Setup for Frequency Accuracy Adjustment

535xB

8120-1839

11852B

1250-0780

Service Guide 2-5

Adjustments 8712ET/ES and 8714ET/ES Frequency Accuracy Adjustment RF Network Analyzers

2.Set the frequency counter input switches to the “10 Hz – 500 MHz” and 50Ω positions.

3.On the analyzer, press (seecaution on page 2-2)

Trigger Hold

PRESET FREQ

. If the frequency counter reading is 500 MHz±2500 Hz, you

500

MHz

do not need to make this adjustment. However, you can still make this adjustment to improve the frequency accuracy.

4.To proceed with the adjustment, disconnect the frequency counter and adapter(s) from the analyzer’s RF OUT/ PORT 1 port (seeFigure 2-1on page2-5).

5.Remove the handles and front panel by following these steps and referring to

Figure2-2.

a.Remove the trim strip from the handles. b.Remove the screws attaching each handle to the analyzer. c.Pull the analyzer toward you until it extends about two inches over the edge of the

table top.

d.Grasp and pull the front panel with two hands: one on the top-middle of the panel,

and the other on the bottom-middle of the panel.

Figure 2-2 Removing the Handles and Front Panel

6.Reconnect the frequency counter and adapter(s) to the RF OUT/PORT 1 port (see

Figure 2-1on page2-5).

7.To obtain a counter reading of 500 MHz±2500 Hz or better, adjust R204 on the fractional-N/reference assembly (A3) (accessible through a hole in shield of the A3 assembly).

8.Reassemble the analyzer.

2-6 Service Guide

8712ET/ES and 8714ET/ES Adjustments

Service

Instrument Info

RF Network Analyzers Set Serial Number, Adjustment #100

Set Serial Number, Adjustment #100

Adjustment #100 cannot be used to set an established serial number. The procedure outlined below can only be used to enter the serial number if the analyzer displays a default serial number value of

If it is necessary to modify a serial number that is other than the default value, contact the nearest Agilent Technologie sales or service ofﬁce (see Chapter 9).

NOTE Where XXXXXXXXXX appears throughout this procedure, replace those

characters with the serial number of your analyzer, but maintain the leading and following apostrophes (both are ASCII character 39). For example, if the serial number of your analyzer is US34405555, the HP BASIC line of code would be:

OUTPUT 800;"DIAG:SNUM 'US34405555'"

IMPORTANT: Make sure there is a space between SNUM and the ﬁrst apostrophe.

?????????? (ten question marks).

Required Equipment

A PC-compatible keyboard is required. If a keyboard is not available, this adjustment can be done from the front panel. (Refer to

the note in the following procedure.)

Estimated Adjustment Time

This adjustment takes approximately two minutes to perform.

Procedure

1. Write down the 10-character serial number, exactly as shown on the analyzer rear-panel label.

2. With an external keyboard connected, press to view the IBASIC command line. Then

type the following:

OUTPUT 800;"DIAG:SNUM 'XXXXXXXXXX'"

then press .

ENTER

NOTE If you are using the front panel to set the serial number, enter the following

IBASIC code, then “run” the program.

OUTPUT 800;"DIAG:SNUM 'XXXXXXXXXX'" END

ESC

Service Guide 2-7

Refer to Chapter 5 of the HP Instrument Basic User’s Handbook Supplement for information on programming from the front panel of the instrument.

Press to verify that you correctly installed the serial number. The serial number is displayed in the dialogue box.

SYSTEM OPTIONS

Agilent 8712ES Service Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Performance Checks

Performing the Operator's Check

Equipment List

Make a Broadband Power Measurement

If the Analyzer Fails the Operator’s Check

Performance Test Software

Required Software and Controller

Estimated Time

Equipment

File Structure

Getting Started

Performance Test Software Installation

Using the Program

Performance Test Notes and Descriptions

System Performance

Test Port Output

Test Port Input

General Information

Features

Measurement

Storage

Data Hardcopy

Automation

Measurement Calibration

Options

2Adjustments

Introduction

Required Equipment

Correction Constants (CCs) Storage

Frequency Accuracy Adjustment

Required Equipment

Procedure

Set Serial Number, Adjustment #100

Required Equipment

Procedure