Agilent Technologies 87075C User Manual

User’s and Service Guide

Agilent Technologies

87075C

Multiport Test Set

For E506x Network Analyzers

Part No. 87075-90027

Printed in USA

Print Da te: March 200 4

© Copyright 2004 Agilent Technologies, Inc.

WARRANTY STATEMENT

THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED
“AS IS,” AND IS SUBJECT TO BEING CHANGED, WITHOUT
NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM
EXTENT PERMITTED BY APPLICABLE LAW, AGILENT
DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED
WITH REGARD TO THIS MANUAL AND ANY INFORMATION
CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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FOR ERRORS OR FOR INCIDENTAL
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OR ANY INFORMA TION CONTAINED HEREIN. SHOULD AGILENT
AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT
WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS
DOCUMENT THAT CONFLICT WITH THESE TERMS, THE
WARRANTY TERMS IN THE SEPARATE AGREEMENT WILL
CONTROL.

DFARS/Restricted Rights Notice

If software is for use in the performance of a U.S. Government
prime contract or subcontract, Software is delivered and licensed
as “Commercial computer software” as defined in DFAR

252.227-7014 (June 1995), or as a “commercial item” as defined in
FAR 2.101(a) or as “Restricted computer software” as defined in
FAR 52.227-19 (June 1987) or any equivalent agency regulation or
contract clause. Use, duplication or disclosure of Software is
subject to Agilent Technologies’ standard commercial license
terms, and non-DOD Departments and Agencies of the U.S.
Government will receive no greater than Restricted Rights as
defined in FAR 52.227-19(c)(1-2) (June 1987). U.S. Government

ii

users will receive no greater than Limited Rights as defined in
FAR 52.227-14 (June 1987) or DFAR 252.227-7015 (b)(2)
(November 1995), as applicable in any technical data.

Certification

Agilent Technologies, Inc. certifies that this product met its
published specifications at the time of shipment from the factory.
Agilent Technologies, Inc. further certifies that its calibration
measurements are traceable 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.

Assistance

Product maintenance agreements and other customer assistance
agreements are available for Agilent Technologies, Inc. products.
For information about these agreements and for other assistance,
contact Agilent. Refer to

page 120.

Safety Notes

The following safety notes are used throughout this manual.
Familiarize yourself with each of the notes and its meaning before
operating this instrument. All pertinent safety notes for using this
product are located in

iii

Chapter 10 .

WARNING Warning denotes a hazard. It calls attention to a procedure

which, if not correctly performed or adhered to, could
result in injury or loss of life. Do not proceed beyond a
warning note until the indicated conditions are fully
understood and met.

CAUTION Caution denotes a hazard. It calls attention to a procedure that, if

not correctly performed or adhered to, could result in damage to or
destruction of the instrument. Do not proceed beyond a caution
sign until the indicated conditions are fully understood and met.

Printing Copies of This Document

To print copies of documentation from the Web, download the PDF
file from the Agilent web site:

• Go to http://www.agilent.com.

• Enter the document’s part number (located on the title page) in

the Quick Search box.

• Click GO.
.

iv

Contents

1. Introduction and Installation

Introduction to the Multiport Test Set . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

A Complete Multiport Test System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Fully Characterize Your Devices with a Single Connection. . . . . . . . . .2

Improve Your Competitiveness with a Fully Specified Test System . . .3
Eliminate Redundant Connection of Calibration Standards with Test

Set Cal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Reduce the Effects of Test-System Drift with SelfCal . . . . . . . . . . . . . .4

Decrease Calibration Times and Increase Production Throughput . . .4

Improve Measurement Accuracy with Two-Port Calibration . . . . . . . .4

Typeface Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

If You are Using an 8712ET/ES or 8714ET/ES Analyzer . . . . . . . . . . . . .6

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Step 1. Check the Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Step 2. Determine Network Analyzer Compatibility . . . . . . . . . . . . . .11

Step 3. Connect the Test Set to the Analyzer . . . . . . . . . . . . . . . . . . .12

Step 4. Satisfy Electrical and Environmental Requirements . . . . . . .14

Step 5. Activate the Test Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Step 6. Connect Peripheral Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Cleaning the Test Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

2. Making Measurements

Measurement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Setting port connections of the multi-port test set . . . . . . . . . . . . . . . .22

Setting the measurement conditions. . . . . . . . . . . . . . . . . . . . . . . . . . .23

Calibrating the test set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Performing Measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

3. Test Set Cal and SelfCal

Contents-v

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Test Set Cal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

SelfCal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Test Set Cal: An Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Setting Up the Measurement Parameters. . . . . . . . . . . . . . . . . . . . . . 32

Determining the Best Position for the Calibration Reference Plane . 34

Determining the Type of Calibration Kit to Use . . . . . . . . . . . . . . . . . 36

Determine the Test Set Ports to Be Used . . . . . . . . . . . . . . . . . . . . . . 37

Performing the Test Set Cal with a Mechanical Calibration Kit . . . . 37

Performing the Test Set Cal with an ECal Module. . . . . . . . . . . . . . . 40

Saving the Test Set Cal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Recalling the Test Set Cal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Copying the Test Set Cal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Executing Self Cal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Test Set Cal and SelfCal: Theory of Operation. . . . . . . . . . . . . . . . . . . . 45

4. Front/Rear Panel

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Line Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Test Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

The REFLECTION Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

The TRANSMISSION Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

The Chassis Ground Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

The PORT CONNECTION Status LEDs . . . . . . . . . . . . . . . . . . . . . . 53

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

The PARALLEL IN Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

The PARALLEL OUT Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Line Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

5. Key Reference

Contents-vi

Contents

Cal Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

System Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

6. SCPI Command Reference

7. COM Object Reference

8. Specifications

About This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111

Test Set Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118

Limitation of Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Exclusive Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Contacting Agilent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120

9. Service

Automated Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125

Test Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126

Program Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

Performance Verification Test Results . . . . . . . . . . . . . . . . . . . . . . . . 129

Manual Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136

The Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136

The LED Display Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137

The Main Switch Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Contents-vii

Contents

Post-Repair Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Rebuilt-Exchange Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Major Parts and Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Cables, Front Panel, and Main Board Assembly — Option 012

(75 Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Cables, Front Panel, and Main Board Assembly— Option 006 . . . . 145

Instrument Covers and Associated Parts . . . . . . . . . . . . . . . . . . . . . 147

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

10. Safety and Regulatory Information

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Statement of Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Cleaning Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Shipping Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Instrument Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Notice for Germany: Noise Declaration . . . . . . . . . . . . . . . . . . . . . . 157

Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Contents-viii

1 Introduction and Installation

1

Introduction and Installation

Introduction to the Multiport Test Set

Introduction to the Multiport Test Set

• The 87075C is a 75-ohm multiport test set that is available with 6 or 12 test ports.

A Complete Multiport Test System

87075C multiport test sets are designed to work with E5061A (1.5 GHz) and
E5062A (3 GHz) RF network analyzers to provide complete measurement systems
for 75 ohm multiport devices. These test systems offer fast measurement speed, high
accuracy, and productivity features that will maximize your production throughput.
They feature:

• specified performance to 1.3 GHz (87075C)

• solid-state switches for fast, repeatable, and reliable switching between
measurement paths

Fully Characterize Your Devices with a Single Connection

A single connection between the multiport test set and each port of the DUT allows
complete testing of all transmission paths and port reflection characteristics. Agilent
multiport test systems eliminate time-consuming reconnections to the DUT, keeping
your production costs down and your volumes up. By reducing the number of RF
connections, you also:

• lower the risk of misconnections

• reduce operator fatigue

• minimize wear on cables, fixtures, connectors, and the DUT

2 Chapter 1

Introduction and Installation

Introduction to the Multiport Test Set

Improve Your Competitiveness with a Fully Specified Test System

A multiport test set coupled with an E5061A/E5062A network analyzer offers fully
specified performance at the actual test po rts, wheth er y ou meas ur e in a fixture or at
the end of test cables. Specified performance means you can:

• get the same results no matter which test station you use to measure your DUT

• correlate test data from many DUTs across multiple test systems

• reduce measurement uncertainty to tighten your product specifications

• increase customer confidence in your products

Eliminate Redundant Connection of Calibration Standards with Test Set Cal

Calibrating a multiport test set using two-port error correction and a traditional
network analyzer requires a unique instrument state for each measurement path,
forcing many redundant connections of calibration standards. As the number of
ports increases, so does the number of connections required to calibrate all possible
measurement paths. Full calibration of the multiport test system is quick and simple
when performing a Test Set Cal:

• connect short, open, and load standards only once to each measurement port

• minimize the number of through standards required during calibration

Chapter 1 3

Introduction and Installation

Introduction to the Multiport Test Set

Reduce the Effects of Test-System Drift with SelfCal

SelfCal is an internally automated calibration technique that uses solid - state
switches to measure calibration standards located inside the test set. SelfCal
executes automatically in just a few seconds (at an interval you define), so the
impact to your test process is minimal. Use SelfCal to:

• re-calibrate your multiport test system, returning it to the same measurement
accuracy achieved immediately after performing a Test Set Cal

• reduce the effects of test-system drift, improving overall measurement accuracy
between Test Set Cals

Since SelfCal does not correct for drift associated with interconnect elements
between the test set and your DUT, it is essential to use high-quality test cables,
adapters, and fixtures to ensure the best measurement accuracy.

Decrease Calibration Times and Increase Production Throughput

With SelfCal, a Test Set Cal needs to be performed about once per month, if within
the specified temperature range. This is unlike other test systems that typically
require calibration once or twice a day. Using Test Set Cal and SelfCal, you can:

• easily reduce your overall calibration times by a factor of twenty or more

• increase the amount of time a test station can be used for measuring
devices—typically, by three days per month.

Improve Measurement Accuracy with Two-Port Calibration

When using a multiport test set with an E5061A/E5062A with the option 27 5
S-parameter test set, Test Set Cal and SelfCal support full two-port calibrations.
Two-port error correction greatly improves the effective load match of the test
system, providing excellent measurement accuracy.

4 Chapter 1

Introduction and Installation

Introduction to the Multiport Test Set

Typeface Conventions

Sample (bold) Boldface type is used when a term is

defined or emphasis.

Sample (Italic) Italic type is used for emphasis.

[ ] key Indicates a hardkey (key on the front panel

or external keyboard) labeled “Sample.”
“key” may be omitted.

Sample menu/button/box Indicates a menu/button/box on the screen

labeled “Sample” which can be
selected/executed by clicking. “menu,”
“button,” or “box” may be omitted.

Sample block/toolbar Indicates a block (group of hardkeys) or a

toolbar (s etup toolbar ) labeled “Sa mple.”

Sample 1 - Sample 2 - Sample 3 Indicates a sequential operation of Sample

1, Sample 2, and Sample 3 (menu, button,
or box). “-” may be omitted.

Chapter 1 5

Introduction and Installation

If You are Using an 8712ET/ES or 8714ET/ES Analyzer

If You are Using an 8712ET/ES or 8714ET/ES Analyzer

This document is intended for use with E5061A and E5062A analyzers, so some of
the information (for example, key presses and calibration features) doe s not apply to
your analyzer. You can order the copy of the manual specifically written for using
the 87075C with 8712ET/ES and 8714ET/ES analyzers with the part number
87050-90026 by contacting Agilent Technologies. Refer to page 120 for contact
information. The manual can be also viewed in the Agilent web site:

http://www.agilent.com/find/manuals

6 Chapter 1

Introduction and Installation

Installation

Installation

This section will guide you through the steps necessary to correctly and safely
install your multiport test set. The steps are:

• “Step 1. Check the Shipment”

• “Step 2. Determine Network Analyzer Compatibility”

• “Step 3. Connect the Test Set to the Analyzer”

• “Step 4. Satisfy Electrical and Environmental Requirements”

• “Step 5. Activate the Test Set”

• “Step 6. Connect Peripheral Devices”

Chapter 1 7

Introduction and Installation

Installation

Figure 1-1 87075C Multiport Test Set — Two Versions

87075C Option 006 — Six Port Test Set

87075C Option 012 — Twelve Port Test Set

8 Chapter 1

Introduction and Installation

Installation

Step 1. Check the Shipment

After you have unpacked your test set, keep the packaging materials to use if your
instrument should need to be returned for maintenance or repair.

NOTE The packaging material is designed to protect the test set from damage that can

happen during shipping. Returning the test set in anything other than the original
packaging may result in non-warranted damage.

Check the items received against Table 1-1 to make sure that you received everything.

Chapter 1 9

Introduction and Installation

Installation

Table 1-1 Test Set Accessories Supplied

Item No. Description Quantity Part Number

1 Power Cord 1 See Figure 4-3. 2 Type-N Cable (Analyzer to test set’s

REFLECTION Port)

1

3 Type-N Cable (Analyzer to test set’s

TRANSMISSION Port)

1

4 Type-N Cable (Analyzer to test set’s

REFLECTION Port)

2

5 Type-N Cable (Analyzer to test set’s

TRANSMISSION Port)

2

1(75 Ω) 87075-60026

1(75 Ω) 87075-60028

1(75 Ω) 87075-60027

1(75 Ω) 87075-60029

6 Parallel Port Interface Cable 1 8120-6818 7 87075C User's and Service Guide (for E506x

1

87075-90027

Network Analyzers)
87050E and 87075C User’s and Service Guide

1

87050-90026

(for 871x Network Analyzers) 8 Test Set Calibration Disk 1 N/A 9 Performance T es t Progr ams Disks

1 08714-60049

(DOS and LIF formats) 10 CD-ROM 1 08714-90051

1. Not to be used with a rack-mounted system or if the analyzer has had its bottom feet removed.
See Figure 1-6 to see how these cables are to be connected.

2. You will only receive these cables if you ordered Option 1CM (rack mount kit). Use these cables
if you are rack-mounting your system, or if the bottom feet of the analyzer have been removed.
See Figure 1-6 for information on how to connect these cables.

10 Chapter 1

Figure 1-2 Test Set Accessories Supplied

Introduction and Installation

Installation

Step 2. Determine Network Analyzer Compatibility

If you are using a 8712ET/ES or 8714ET/ES analyzer, refer t o “If You are Using an

8712ET/ES or 8714ET/ES Analyzer”.

Chapter 1 11

Introduction and Installation

Installation

Step 3. Connect the Test Set to the Analyzer

For using your system on a bench, configure and connect the two instruments as shown in Figure 1-3: Connect the Parallel In connector of the test set to the analyzer Parallel connector. Use the parallel cable that was shipped with the multiport test set.

If you will be installing your system in a rack, read “Installing the System in a

Rack,” next in this section, before connecting the test set to the analyzer.

Figure 1-3 System Configuration

Installing the System in a Rack

The rack mount kit for the test set is Option 1CM when ordered with the test set, or
part number 5063-9214 when ordered separately.

12 Chapter 1

Introduction and Installation

Installation

NOTE There are special semi-rigid cables that should be used to connect th e analyzer’ s test

ports to the test set’s REFLECTION and TRANSMISSION ports when used in a
rack (or a bench configuration where the analyzer’s bottom feet have been
removed). These cables were shipped with your analyzer if you ordered Option
1CM. If you order the rack mount kit separately, you will need to order these special
cables separately also. See Table 1-1 for part numbers.

To install your system in an 85043D rack, follow the instructions in the rack manual.

CAUTION When installing your system in other racks, improper installation may cause shock

hazards, overheating, dust contamination, and inferior system performance. For
support details and information about installation and warranty, call Agilent
T ech nolog ies. See page 120 for contact information.

CAUTION When installing the system in a cabinet, the convection into and out of the system

must not be restricted. The ambient temperature (outside the cabinet) must be less
than the maximum operating temperature of the system by 4 °C for every 100 watts
dissipated in the cabinet. If the total power dissipated in the cabinet is greater than
800 watts, then forced convection must be used.

Chapter 1 13

Introduction and Installation

Installation

Step 4. Satisfy Electrical and Environmental Requirements

NOTE Refer to your network analyzer’s User’s Guide for information on electrical and

environmental requirements for your network analyzer.

1. The line power module on your multiport test set has an autoranging input. It is
designed to be used with an ac power source with a nominal voltage of either
115 V or 230 V.

2. Ensure the available ac power source meets the following requirements:

Nominal Range

Frequency: 50/60 Hz 47–63 Hz Line Voltage: 100/115 V or 230/240 V 90–264 V Power 45 W max

CAUTION This product has an autoranging line-voltage input. Be sure the supply voltage is

within the specified range.

If the ac line voltage does not fall within these ranges, an autotransformer that
provides third-wire continuity to earth ground should be used.

3. Ensure the operating environment meets the following requirements for safety:

• indoor use

• altitude up to 15,000 feet (4,572 meters)

•temperature 0 °C to 55 °C

• maximum relative humidity 80% for temperatures up to 31 °C decreasing

linearly to 50% relative humidity at 40 °C

• use only in INSTALLATION CATEGORY II, and POLLUTION DEGREE

2, per IEC 1010 and 664 respectively

4. Verify that the power cable is not damaged, and that the power source outlet
provides a protective earth ground contact. Note that the following illustration
depicts only one type of power source outlet. Refer to Figure 4-3 to see the
different types of power cord plugs that can be used with your test set.

14 Chapter 1

Figure 1-4 Protective Earth Ground

Introduction and Installation

Installation

WARNING This is a Safety Class I product (provided with a protective earthing ground

incorporated in the power cord). The mains plug shall only be inserted in a
socket outlet provided with a protective earth contact. Any interruption of the
protective conductor, inside or outside the instrument, is likely to make the
instrument dangerous. Intentional interruption is prohibited.

Chapter 1 15

Introduction and Installation

Installation

5. Ensure there are at least two inches of clearance around the sides and back of the
test set or the system cabinet.

Figure 1-5 Ventilation Clearance Requirements

6. Set up a static-safe workstation. Electrostatic discharge (ESD) can damage or destroy components.

• table mat with earth ground wire: part number 9300-0797

• wrist-strap cord with 1 Meg Ohm
resistor:
part number 9300-0980

• wrist-strap:
part number 9300-1367

• heel straps:
part number 9300-1308

• floor mat

16 Chapter 1

Step 5. Activate the Test Set

1. Connect the semi-rigid cables that were shipped with your test set as shown in

Figure 1-6. Check Table 1-1 to be sure that you are using the correct cables with

your system configuration (the cables you use will be different depending on
whether you are using a bench system configuration—as shown in Figure

1-6—or a rack configuration).

Figure 1-6 Connect the Front Panel RF Cables

Introduction and Installation

Installation

NOTE Steps 2 and 3 must be performed before you can use your network analyzer to

control the multiport test set.

2. Turn on the test set .

3. Turn on the analyzer and Press [System] - activate the test set control.

Chapter 1 17

87075 Setup - 87075 Control to

Introduction and Installation

Installation

Step 6. Connect Peripheral Devices

After you’ve ensured that your syst em is work ing pro perl y, connect any peripherals
that you intend to use with your system.

NOTE See your analyzer’s User’s Guide for information on peripheral connections.

18 Chapter 1

Introduction and Installation

Preventive Maintenance

Preventive Maintenance

Preventive maintenance consists of checking the front panel connectors. This should
be done at least every six months — more often if the test set is used daily on a
production line or in a harsh environment.

Visually inspect the front panel connectors. The most important connectors are
those to which the DUT is connected. All connectors should be clean and the center
pins centered. The fingers of female connectors should be unbroken and uniform in
appearance. If you are unsure whether the connectors are good, gauge the
connectors to confirm that their dimensions are correct.

CAUTION Never connect 50 ohm cables to the front panel 75 ohm connectors of the analyzer

or test set. Otherwise, irreparable connector damage will occur.

Cleaning the Test Set

Use a dry cloth or one slightly dampened with water to clean the external case parts .
Do not attempt to clean internally.

WARNING To prevent electrical shock, disconnect the test set from power mains before

cleaning.

Chapter 1 19

Introduction and Installation

Preventive Maintenance

20 Chapter 1

2 Making Measurements

This chapter describes the procedure of measurement using the 87075C multi-port test set.

21

Making Measurements

Measurement Procedures

Measurement Procedures

Measurement is performed in 4 major steps below.

• Setting the port connections of the multi-port test set

• Setting the measurement conditions

• Calibrating the test set

• Performing measurement
Multiport test system needs to be properly installed before making measurem ents.

For the installation procedure see “Installation” on page 1-7.

Figure 2-1 Mult iport Test System

Setting port connections of the multi-port test set

The procedure to set the test set port connections is described below. Note that the
port connections are set separately for each measurement channel.

Step 1. Press [Channel Next] or [Channel Prev] to select the channel for which you want

to execute multi-port measurement.

22 Chapter 2