Agilent 83236B Operator Manual

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Agilent Technologies 83236B

PCS Interface

Operating Manual

Serial Numbers

This manual applies directly to instruments with serial

number prefix 3711J. For additional important information

about serial numbers, see Serial Numbers on page 144.

Agilent Part No. 83236-90102

Printed in Japan

April 2000

4th Edition

Notice Information contained in this document is subject to change without notice.

This document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or, translation to another language without the prior written consent of Agilent Technologies, Inc.

Kobe Wireless Test Development Agilent Technologies Japan, Limited. 1-3-2, Murotani, Nishi-ku, Kobe-shi, Hyogo, 651-2241 Japan

Manual Printing History

The manual printing and part number indicate its current edition. The printing date changes when a new edition is printed. (Minor corrections and updates that are incorporated at reprint do not cause the date to change.) The manual part number changes when extensive technical changes are incorporated.

November 1996................................................................................ 1st Edition

March 1997 ..................................................................................... 2nd Edition

October 1997....................................................................................3rd Edition

April 2000 ........................................................................................4th Edition

iii

Certification Agilent Technologies certifies that this product met its published specifications at

the time of shipment from the factory. Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by the Institution's calibration facility, or to the calibration facilities of other International Standards Organization members.

Warranty This Agilent Technologies instrument product is warranted against defects in

material and workmanship for a period of one year from the date of shipment, except that in the case of certain components listed in Specifications of this manual, the warranty shall be for the specified period. During the warranty period, Agilent Technologies will, at its option, either repair or replace products which prove to be defective.

For warranty service or repair, this product must be returned to a service facility designated by Agilent Technologies. Buyer shall prepay shipping charges to Agilent Technologies and Agilent Technologies shall pay shipping charges to return the product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products returned to Agilent Technologies from another country.

Agilent Technologies warrants that its software and firmware designated by Agilent Technologies for use with an instrument will execute its programming instruction when properly installed on that instrument. Agilent Technologies does not warrant that the operation of the instrument, or software, or firmware will be uninterrupted or error free.

Limitation Of Warranty

Exclusive Remedies

The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation or maintenance. No

other warranty is expressed or implied. Agilent Technologies specifically disclaims the implied warranties of merchantability and fitness for a particular purpose.

The remedies provided herein are buyer's sole and exclusive remedies. Agilent Technologies shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory.

Assistance Product maintenance agreements and other customer assistance agreements are

available for Agilent Technologies products.

For any assistance, contact your nearest Agilent Technologies Sales and Service Office. Addresses are provided at the back of this manual.

Safety Summary

The following general safety precautions must be observed during all phases of operation, service, and repair of this instrument. Failure to comply with these precautions or with specific WARNINGS elsewhere in this manual may impair the protection provided by the equipment. In addition it violates safety standards of design, manufacture, and intended use of the instrument. The Agilent

Technologies assumes no liability for the customer's failure to comply with these requirements.

NOTE: Agilent Technologies 83236B complies with INSTALLATION CATEGORY II and

POLLUTION DEGREE 2 in IEC1010-1. Agilent 83236B is an INDOOR USE product.

NOTE: LEDs in the Agilent 83236B are Class 1 in accordance with IEC 825-1.

CLASS 1 LED PRODUCT

Ground the Instrument

To avoid electric shock hazard, the instrument chassis and cabinet must be connected to a safety earth ground by the supplied power cable with earth blade.

DO NOT Operate In An Explosive Atmosphere

Do not operate the instrument in the presence of flammable gasses or fumes. Operation of any electrical instrument in such an environment constitutes a definite safety hazard.

Keep Away From Live Circuits

Operating personnel must not remove instrument covers. Component replacement and internal adjustments must be made by qualified maintenance personnel. Do not replace components with the power cable connected. Under certain conditions, dangerous voltages may exist even with the power cable removed. To avoid injuries, always disconnect power and discharge circuits before touching them.

DO NOT Service Or Adjust Alone

Do not attempt internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present.

DO NOT Substitute Parts Or Modify Instrument

Because of the danger of introducing additional hazards, do not install substitute parts or perform unauthorized modifications to the instrument. Return the instrument to a Agilent Technologies Sales and Service Office for service and repair to ensure that safety features are maintained.

Dangerous Procedure Warnings

Warnings, such as the example below, precede potentially dangerous procedures

throughout this manual. Instructions contained in the warnings must be followed.

WARNING: Dangerous voltages, capable of causing death, are present in this instrument. Use

extreme caution when handling, testing, and adjusting this instrument.

Safety Symbols

General definitions of safety symbols used on equipment or in manuals are listed below.

Instruction manual symbol: the product is marked with this symbol when it is

necessary for the user to refer to the instruction manual.

Alternating current.

Direct current.

On (Supply).

Off (Supply).

In position of push-button switch.

Out position of push-button switch.

WARNING: This WARNING sign denotes a hazard. It calls attention to a procedure, practice,

condition or the like, which, if not correctly performed or adhered to, could result in injury or death to personnel.

CAUTION: This CAUTION sign denotes a hazard. It calls attention to a procedure, practice, condition

or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the product.

NOTE: NOTE denotes important information. It calls attention to a procedure, practice, condition

or the like, which is essential to highlight.

vii

Herstellerbescheinigung

GERXUSCHEMISSION

LpA < 70 dB am Arbeitsplatz normaler Betrieb nach DIN 45635 T. 19

Manufacturer’s Declaration

ACOUSTIC NOISE EMISSION

LpA < 70 dB operator position normal operation per ISO 7779

viii

In this Manual This manual describes general information, function, operation, and specifications

of the Agilent 83236B PCS Interface. The following chapters are included in this manual.

Appendix 1, General Information

This chapter provides a product overview and describes the furnished accessories, options, and front and rear panels.

Appendix 2, Installation

This chapter describes the steps for configuring the PCS Interface.

Appendix 3, Programming the PCS Interface using GPIB Control

This chapter describes how to control the PCS Interface using GPIB commands.

Appendix 4, GPIB Commands

This chapter describes the remote operation of the PCS Interface using GPIB.

Appendix 5, Specifications

This chapter describes the specifications of the PCS Interface.

Appendix A, Frequency Conversion Tables

Appendix A provides the frequency conversion tables used internally by the PCS Interface’s CPU to determine the Test Set’s frequencies.

Appendix B, Manual Changes

Appendix B provides a manual change history and information about serial numbers.

Appendix C, Error Messages

This section describes the error messages generated by the PCS Interface.

Glossary

This section defines terms used throughout this manual.

Contents

1 General Information

Introduction 16

Incoming Inspection 18

Furnished Accessories 19

Power Cable 20

Options 22

Front Panel 24

Rear Panel 26

Other Information 29

2 Installation

Introduction 32

When Used with Agilent 8924C and Controlled via Serial Port for CDMA Subscriber Unit Tests 34

When Used with Agilent 8924C and Controlled via GPIB for CDMA Subscriber Unit Tests 37

When Used with Agilent 8920B and Controlled via Serial Port for TDMA Subscriber Unit Tests 40

When Used with Agilent 8920A,B and Controlled via GPIB for TDMA Subscriber Unit Tests 45

When Used with Agilent 8921A for CDMA Base Stations Tests 50

When Used with Agilent 8921A for TDMA Base Stations Tests 54

Contents

Load and Run the Connectivity Test Software (Option 001 or

002) 59

Where to go next 64

3 Programming the PCS Interface using GPIB Control

Introduction 66

Overview of Programming Issues 67

PCS Interface Programming Guide 75

Test Procedure Flow 76

Initialize the System 77

Set Up and Measure 79

4GPIB Commands

Introduction 92

The Syntax of Program Messages 94

Common Commands 98

COMPensation Subsystem 100

RF Subsystem 106

RX Subsystem 108

SYSTem Subsystem 113

TX Subsystem 114

Contents

GPIB Command Summary 121

5 Specifications

Introduction 124

Generator Output Path 125

Analyzer Input Path 128

Reference Specifications 131

Remote Control 131

Connectors 132

General Characteristics 135

A Frequency Conversion Tables

Frequency Conversion for Signal Generation 138

B Manual Changes

Introduction 142

Manual Changes 143

Serial Numbers 144

Change 1 145

C Error Messages

Contents

Error Message 154

Glossary 161

General Information

eneral Information

What’s included in this chapter:

• Introduction

• Furnished Accessories

• Options

• Front Panel

• Rear Panel

Chapter 1, General Information

Introduction

Figure 1 Agilent 83236B PCS Interface

The Agilent 83236B PCS Interface extends the time division multiple access (TDMA) and code division multiple access (CDMA) measurement capability of the Agilent 8920A,B, Agilent 8921A, and Agilent 8924C Test Sets to the 1710 to 1990 MHz frequency range. This frequency range covers the International (1710 to 1880 MHz), Korean (1715 to 1870 MHz), and North American (1850 to 1990 MHz) Personal Communications Service (PCS) bands. Table 1 shows the supported equipment combinations and the type of unit-under-test (UUT).

Table 1 Supported configuration and UUTs

UUT Type Test Set

TDMA Base Station Agilent 8921A Agilent 83204A

TDMA Subscriber Unit Agilent 8920A,B Agilent 83206A

CDMA Base Station Agilent 8921A Agilent 83203B or Agilent 83205A

CDMA Subscriber Unit Agilent 8924C Not required

1.The combination of the Agilent 8921A and 83204A composes the Agilent 8921A option 500.

2.Can be used with Agilent 8920B only. The combination of the Agilent 8920B and 83206A composes the Agilent 8920B option 800.

3.The combination of the Agilent 8920A and 83201A composes the Agilent 8920D.

4.The combination of the Agilent 8920B and 83201B composes the Agilent 8920B option 500.

5.The combination of the Agilent 8921A and 83205A composes the Agilent 8921A option 600.

International, Korea, and North

American PCS Bands

Cellular Adapter

North American

PCS Band only

Agilent 83201A

Agilent 83201A3,B

—

Chapter 1, General Information

Introduction

Power measurement accuracy and speed are maintained at PCS band frequencies with an internal power meter for measurements on CW, CDMA, and TDMA signals.

The PCS Interface has no front panel “controls” and cannot be used manually. Control of the PCS Interface is via GPIB using an external controller or the Test Set’s internal IBASIC controller, or via the serial port by the Agilent 8924C whose firmware revision is A.05.00 and above or Agilent 8920B option 800 whose firmware revision is B.05.00 and above.

Most of this manual is dedicated to assisting you in the integration, GPIB programming, and control of the PCS Interface.

NOTE: Refer to the Agilent 8924C User’s Guide or Agilent 8920B User’s Guide for the operation

of the Agilent 83236B controlled via the serial port.

Conventions Used The Agilent 83236B PCS Interface can be used with a variety of Test Sets and a

variety of Cellular Adapters.

•Test Sets

• Agilent 8920A, B

• Agilent 8921A

• Agilent 8924C

• Cellular Adapters

• Agilent 83201A,B

• Agilent 83203B

• Agilent 83204A

• Agilent 83205A

• Agilent 83206A

To simplify things, the term Test Set will be used throughout this manual to refer to any Agilent 892NX, the term Cellular Adapter to refer to any Agilent 8320NX, and the term PCS Interface to refer to the Agilent 83236B PCS Interface. The combination of the Test Set, Cellular Adapter, and PCS Interface will be referred to as the Test System.

In some instances, TX will be used in place of the word transmitter, and RX will be used in place of the word receiver; UUT will be used as an abbreviation for unit-under-test.

Chapter 1, General Information

Incoming Inspection

WARNING: To avoid hazardous electrical shock, do not turn on the PCS Interface when there are

signs of shipping damage to any portion of the outer enclosure (for example, covers, panel, or display).

Inspect the shipping container for damage. If the shipping container or cushioning material is damaged, it should be kept until the contents of the shipment have been checked for completeness and the PCS Interface has been checked mechanically and electrically. The contents of the shipment should be as listed in table 2 on page 19. If the contents are incomplete, if there is mechanical damage or defect, or if the system does not pass the power-on self tests, notify the nearest Agilent Technologies office. If the shipping container is damaged, or the cushioning material shows signs of unusual stress, notify the carrier as well as the Agilent Technologies office. Keep the shipping materials for the carrier's inspection.

Furnished Accessories

The following accessories are furnished with the PCS Interface.

Table 2 Included Accessories

Name Qty. Part/Product Number

GPIB Cable (0.5 m) 1 Agilent 10833D

Serial Cable 1 Agilent p/n 83236-61609

N-BNC Cable 2 Agilent p/n 83236-61603

SMA-SMC Cable 1 Agilent p/n 83215-61643

Chapter 1, General Information

Furnished Accessories

SMC-SMC Cable 1 Agilent p/n 83215-61644

BNC-BNC Cable 1 Agilent p/n 8120-1839

BNC L-type adapter 2 Agilent p/n 1250-0076

BNC T-type adapter 1 Agilent p/n 1250-0781

Operation Manual (this manual) 1 Agilent p/n 83236-90102

Read Me First — Cable Connections for the PCS Interface

Front Cover 1 Agilent p/n 83201-61013

Power Cable

1. The part number depends on where the instrument is used, see "Power Cable" on page 20.

1 Agilent p/n 83236-90130

Chapter 1, General Information

Power Cable

In accordance with international safety standards, this instrument is equipped with a three-wire power cable. When connected to an appropriate ac power outlet, this cable grounds the instrument frame. The type of power cable shipped with each instrument depends on the country of destination. Refer to figure 2 on page 21 for the part numbers of the power cables available.

Chapter 1, General Information

Power Cable

WARNING: For protection from electrical shock, the power cable ground must not be defeated.

The power plug must be plugged into an outlet that provides a protective earth ground connection.

Figure 2 Power Cable Supplied

Chapter 1, General Information

Options

The following options can be used with the PCS Interface.

001

Utility Software on PCMCIA Card

002 Utility Software on EPSON Memory Card 1AB Bench Top Kit AX4 Rack Flange Kit

Option 001 — Utility Software on PCMCIA Card

Provides the Utility Software memory card which includes the Manual Control and Connectivity Test Programs (for Agilent 8920B and Agilent 8924C). N(f)BNC(m) adapter and N(m)-BNC(f) adapter are also provided for the Connectivity Test Program.

Table 3 Included Accessories (Option 001)

Name Qty. Part/Product Number

Utility Software 1 Agilent p/n 83236-61002

N(f)-BNC(m) Adapter 1 Agilent p/n 1250-2789

N(m)-BNC(f) Adapter 1 Agilent p/n 1250-0780

Manual Control Software User’s Guide 1 Agilent p/n 83236-90110

Option 002 — Utility Software on EPSON Memory Card

Provides the Utility Software memory cards which include the Manual Control, Connectivity, and CDMA/PCS Base Station Test Programs (for Agilent 8920A and Agilent 8921A). N(f)-BNC(m) adapter and N(m)-BNC(f) adapter are also provided for the Connectivity Test Program.

Table 4 Included Accessories (Option 002)

Name Qty. Part/Product Number

Utility Software 1 Agilent p/n 83236-61001

N(f)-BNC(m) Adapter 1 Agilent p/n 1250-2789

N(m)-BNC(f) Adapter 1 Agilent p/n 1250-0780

Manual Control Software User’s Guide 1 Agilent p/n 83236-90110

Chapter 1, General Information

Options

CDMA/PCS Base Station Test Software User’s Guide

Option 1AB — Bench Top Cabinet Kit

This kit is used to stack a 19-inch-wide instrument, such as the Agilent 8924C CDMA Mobile Station Test Set, on the Agilent 83236B. Rack mounting hardware is included.

For the instructions on how to mount the PCS Interface, refer to the Agilent 83236A,B PCS Interface Option 1AB Bench Top Kit Installation Instruction included with the kit.

Table 5 Included Accessories (Option 1AB)

Name Qty. Part/Product Number

Bench Top Cabinet Kit 1 Agilent p/n 83236-60022

Option AX4 — Rack Flange Kit

This kit mounts the instrument in a rack with 482.6 mm (19 in) spacing.

For the instructions on how to rack mount the PCS Interface, refer to the

Agilent 83236A,B PCS Interface Option AX4 Rack Flange Kit Rack Mount Installation Instructions included with the kit.

1 Agilent p/n 83236-90121

Table 6 Included Accessories (Option AX4)

Name Qty. Part/Product Number

Rack Flange Kit 1 Agilent p/n 83236-60021

Chapter 1, General Information

Front Panel

Figure 3 Front Panel

1. Line Switch The power switch. The On position is | and the Off position is Ο. In the On

position, power is supplied and the indicator above the switch is lit.

2. FROM DUPLEX OUT

3. TO ANT IN Connects to the ANT IN port of a Test Set. (Connector type: Type N (F))

Connects to the DUPLEX OUT port of a Test Set. (Connector type: Type N (F))

Chapter 1, General Information

Front Panel

Connects to the transmit/receive antenna port of a radio.

4. RF IN/OUT

CAUTION: The maximum allowable average power to the RF IN/OUT port depends on the unit-under-

(Connector type: Type N (F))

test as follows. Use an external attenuator if you are uncertain.

Subscriber Unit Test

Single carrier TDMA and FM: 10 Watts CDMA: 5 Watts

Base Station Test

Single carrier TDMA and FM: 10 Watts CDMA: 1 Watt

CAUTION: Peak instantaneous signals greater than 30 volts will damage internal circuitry.

Connects to the receive antenna port of a radio. (Connector type: Type N (F))

5. RF OUT only

CAUTION: Do not input a continuous signal greater than +23 dBm (200 mW). Doing so may damage

internal circuits.

Chapter 1, General Information

Rear Panel

1234

Figure 4 Rear Panel

1. GPIB Address Selector

2. REF IN Reference frequency input port. The REF IN port connects to the 10 MHz

3. REF OUT Reference frequency output port. The REF OUT port may be used as a 10 MHz

4. EXT TRIG IN External trigger input. EXT TRIG IN is used to trigger power measurements of

The GPIB address selector specifies the GPIB interface address. The address selector consists of the switches A1 to A5. The switch A1 is the least significant bit (1) and A5 the most significant bit (16). For example, you may set the switches A1, A2, and A5 ON (1) to specify 19 as your GPIB address.

The

GPIB/Ser switch sets whether the GPIB port or SERIAL PORT is used to

control the PCS Interface.

reference source. (Connector type: BNC (F))

source for other equipment. (Connector type: BNC (F))

TDMA bursted signals. It connects to the FRAME CLK OUT port of the Cellular Adapter when the UUT is the TDMA type. (Connector type: SMC (M))

678

5. DET OUT Detector output. DET OUT can be used for power measurements of CDMA

subscriber units. (Connector type: SMC (M))

Chapter 1, General Information

Rear Panel

6. GPIB Interface The GPIB interface connects to an external controller to enable the control of the

PCS Interface. In most cases, this control is provided by a Test Set.

NOTE: To enable this GPIB Interface, set the GPIB/Ser switch of the GPIB Address Selector to

the “GPIB” side (left side as viewed from the rear panel).

This interface conforms to IEEE 488.2 and has the following functions:

Table 7 GPIB Functions

Codes Functions

SH1 Full source handshake capability

AH1 Full accepter handshake capability

T8 Basic talker. No serial poll. No talk only mode. Unaddressed if MLA.

L4 Basic listener. No listen only mode. Unaddressed if MTA

SR0 No service request capability

RL1 Complete remote/local capability

PP0 No parallel poll capability

DC1 Full device clear capability

DT0 No device trigger capability

E2 Tri-state driver electronics

C0 No controller capability

Chapter 1, General Information

Rear Panel

7. SERIAL PORT This port is used for the Agilent 83236B to be controlled by the Agilent 8924C

whose firmware revision is A.05.00 and above or Agilent 8920B whose firmware revision is B.05.00 and above.

NOTE: To enable this serial port, set the GPIB/Ser switch of the GPIB Address Selector to the

“Ser” side (right side as viewed from the rear panel).

8. Power Cord Receptacle

The PCS Interface can operate from AC sources of 90 to 132 Vac and 198 to 264 Vac (47 to 63 Hz). No internal changes are necessary to select AC supply.

Other Information

Chapter 1, General Information

Other Information

Power Requirements

The PCS Interface requires the following power source:

Voltage: 90 to 132 Vac, 198 to 264 Vac Frequency: 47 to 63 Hz Power: 100 VA maximum

Fuse The main fuse is located inside of the PCS Interface. The type and rating of this

fuse are as follows.

UL/CSA type, time delay, 3 A, 250 Vac

WARNING: The main fuse is not replaceable by the operator. Refer servicing to qualified

personnel.

Ventilation Requirements

Instructions for

To ensure adequate ventilation, make sure that there is adequate clearance around the PCS Interface.

For cleaning, wipe lightly with a soft damp cloth.

Cleaning

Calibration Cycle Contact your nearest Agilent Technologies service office.

Chapter 1, General Information

Other Information

Installation

nstallation

Before attempting to make measurements or generate programs using the PCS Interface, it is a good idea to follow the steps in this chapter. This will ensure that the proper connections are made between the PCS Interface and other hardware and will verify basic operation of the Test System.

Installation

Chapter 2, Installation

Introduction

Chapter Overview Included in this chapter are steps for setting up the PCS Interface for the

following test configurations:

Table 8 PCS Interface Test Configurations

You will

control

the PCS

Interface

using...

Refer to...

If you are testing... And your Test Set Model is...

With Cellular

Adapter Model...

CDMA Subscriber Units Agilent 8924C

(Firmware: A.05.00 and above)

Agilent 8924C (Firmware: Below A.05.00)

TDMA Subscriber Units Agilent 8920B

(Firmware: B.05.00 and above)

Agilent 8920B (Firmware: Below B.05.00)

Agilent 8920A Agilent 83201A,B

CDMA Base Stations Agilent 8921A Agilent 83203B,

TDMA Base Stations Agilent 8921A Agilent 83201A,

Agilent 83206A Serial

Agilent 83201A,B, Agilent 83206A

Agilent 83205A

Agilent 83204A

—

—GPIB

Serial

Port

GPIB

page 34.

page 37.

page 40.

page 45.

page 50.

page 54.

Chapter 2, Installation

Introduction

The PCS Interface can be controlled by the following methods.

• Serial Port Control

The Agilent 8920B option 800 with firmware revision B.05.00 and above and Agilent 8924C with firmware revision A.05.00 and above can control the PCS Interface via the serial port. Using this mode eliminates the need to control the PCS Interface independently.

• GPIB Control

All of the above Test Sets can control the PCS Interface via the GPIB. You can use the Manual Control Software or you can make programs to control the PCS Interface.

You will be shown how to set up the equipment, make connections, and run a software utility that verifies the connections and the instruments’ operation.

NOTE: When you want to use the PCS Interface with the Agilent 8924C on the work bench, the

PCS Interface’s Option 1AB Bench Top Kit is required to stack the Agilent 8924C on the PCS Interface.

Chapter 2, Installation

When Used with Agilent 8924C and Controlled via Serial Port for CDMA Subscriber Unit Tests

NOTE: To control the PCS Interface via the serial port, the firmware of the Agilent 8924C must be

A.05.00 and above. Contact your nearest Agilent Technologies sales office for firmware upgrade information.

Unpack the PCS Interface and Accessories

NOTE: This product passed all applicable electrical and mechanical inspections before it was

Follow these steps to prepare the Test System for setup:

1 Unpack the test equipment and accessories.

shipped from the factory. As soon as you receive it, check that it is not damaged and that all accessories are present (see table 2 on page 19). Should this product be damaged or any accessories be missing, contact your local Agilent Technologies sales office or the company from which you purchased it.

2 Mount the PCS Interface into the PCS Interface’s option 1AB bench top kit.

3 Place the Agilent 8924C Test Set on the top of the PCS Interface.

Chapter 2, Installation

When Used with Agilent 8924C and Controlled via Serial Port for CDMA Subscriber Unit

Tests

Cable Connections Follow these steps to prepare the test equipment for use:

1 Set the GPIB Address Selector of the rear panel of the PCS Interface as follows.

GPIB/Ser switch Ser GPIB address Any

2 Make the front and rear panel connections shown in figure 5.

3 Turn on the PCS Interface.

NOTE: The PCS Interface must be powered on and connected before the Agilent 8924C is powered

on. If the PCS Interface is not powered on first, the Agilent 8924C will not detect it.

4 Set up the Test Set.

a Turn on the Test Set. b Press and release the SHIFT key then the TESTS key to access the CONFIGURE

screen.

c Position the cursor in the “PCS Intrfc Control” field, and press the knob to select

“On.”

d Turn the Test Set’s power off and then back on.

5 Perform the RF Generator Level Calibration.

a Press and release the SHIFT key then the TESTS key to access the CONFIGURE

screen.

b Position the cursor in the “RF Gen Level” field, and press the knob to start the

calibration.

Chapter 2, Installation

When Used with Agilent 8924C and Controlled via Serial Port for CDMA Subscriber Unit Tests

From Agilent 8924 DUPLEX OUT To Agilent 83236 FROM DUPLEX OUT (Cable P/N 83236-61603)

SERIAL

From Agilent 8924 SERIAL PORT

CURR

To Agilent 83236 SERIAL PORT (Cable P/N 83236-61609)

POWE

DO NOT

GPI

PROTOCO EXT

RF IN/

MAX PWR

POWER

ONOFF

DUPLEX

83236B

PCS INTERFACE

MAX

ANTENN

FROM DUPLEX OUT TO ANT IN

From Agilent 8924 ANT IN To Agilent 83236 TO ANT IN (Cable P/N 83236-61603)

COMP

TIME

PARALLE

CELLSITE/TRIGGERS

AUX

10 MEAS

CDMA CALL

CALL ANS

USE DA

CDMA

k1’

CELL CALL

k2’

SPECTR

GEN

k2 k3’

ANALOG

ASSIG

ENCO

RELE

SPEC

TEST SET

EXT

2nd DSPMODULAUD REF

MSG

END

HELP

REF

RANG

INCR

LO HI

MSRP

CURSO PU SH

DECO

ACP

TXAF

SCOP DUPL

CANCSHIFT

RF IN/OUT RF OUT only

FUNCTIO

DATA

METE INCR

1.8-2.0 GHz UUT

I/O CONFI

PREV TESTS

AVG INCR

INSTRUMENT

HOLD

ADRS

SAVE

MEAS

LOCA

RECA

PRESE

MEM

789

456 123 0

YES

ON/

ENTE

GHz

MHz

kHz

Hzms% Ωppm

AUDIO

AUDIO SQUELVOLUMIC/

MAX

LHI

MAX

(User-supplied cable)

MHz1X 10X EVENCDMA DSP IF

ANT

CDMA Subscriber Unit

From Agilent 8924 10 MHz REF OUTPUT To Agilent 83236 REF IN (Cable P/N 8120-1839)

From Agilent 8924 POWER DET To Agilent 83236 DET OUT (Cable P/N 83215-61643)

Figure 5 Connection diagrams for the Agilent 8924C Test Configuration (CDMA Subscriber

Unit Tests; Serial Control)

Chapter 2, Installation

When Used with Agilent 8924C and Controlled via GPIB for CDMA Subscriber Unit Tests

Unpack the PCS Interface and Accessories

NOTE: This product passed all applicable electrical and mechanical inspections before it was

Follow these steps to prepare the Test System for setup:

1 Unpack the test equipment and accessories.

2 Mount the PCS Interface into the PCS Interface’s option 1AB bench top kit.

3 Place the Agilent 8924C Test Set on the top of the PCS Interface.

Chapter 2, Installation

When Used with Agilent 8924C and Controlled via GPIB for CDMA Subscriber Unit Tests

Cable Connections Follow these steps to prepare the test equipment for use:

1 Set the GPIB Address Selector on the rear panel of the PCS Interface as follows.

GPIB/Ser switch GPIB GPIB address 19 (for the manual control software and connectivity test)

2 Make the front and rear panel connections shown in figure 6.

3 Turn on the PCS Interface.

4 Turn on the Test Set.

NOTE: Make sure that the “PCS Intrfc Control” field in the CONFIGURE screen is set to “Off.”

To access the CONFIGURE screen, press and release the SHIFT key then the TESTS key.

Chapter 2, Installation

When Used with Agilent 8924C and Controlled via GPIB for CDMA Subscriber Unit Tests

POWE

DO NOT

From Agilent 8924 DUPLEX OUT To Agilent 83236 FROM DUPLEX OUT (Cable P/N 83236-61603)

SERIAL

From Agilent 8924 GPIB

CURR

To Agilent 83236 GPIB (Mod. No. Agilent 10833D)

RF IN/

POWER

COMP

TIME

GPI

PARALLE

CELLSITE/TRIGGERS

PROTOCO E XT

AUX

10 MEAS

CDMA CALL

CALL ANS

USE DA

k1’

CELL CALL

k2’

SPECTR

GEN

k2 k3’

ASSIG

ENCO

RELE

SPEC

DUPLEX

83236B

PCS INTERFACE

MAX

ANTENN

FROM DUPLEX OUT TO ANT IN

TEST SET

MAX PWR

ONOFF

From Agilent 8924 ANT IN To Agilent 83236 TO ANT IN (Cable P/N 83236-61603)

EXT

2nd DSPM ODULAUD REF

CDMA

ANALOG

RANG

MSRP

DECO

SCOP DUPL

MSG

END

HELP

REF

INCR

LO HI

CURSO PUSH

ACP TXAF

CANCSHIF T

RF IN/OUT RF OUT only

FUNCTIO

DATA

METE INCR

1.8-2.0 GHz UUT

INSTRUMENT

I/O CONFI

ADRS

SAVE

LOCA

PREV TESTS

AVG INCR

RECA

789

456 123 0

YES

ON/

AUDIO SQUELVOLUMIC/

MAX

(User-supplied cable)

MHz1X 10X EVENCDMA DSP IF

HOLD MEAS

PRESE

MEM

ENTE

GHz

MHz

kHz

Hzms% Ωppm

AUDIO

LHI

MAX

ANT

CDMA Subscriber Unit

From Agilent 8924 10 MHz REF OUTPUT To Agilent 83236 REF IN (Cable P/N 8120-1839)

Figure 6 Connection diagrams for the Agilent 8924 Test Configuration (CDMA Subscriber

Unit Tests; GPIB Control)

Chapter 2, Installation

When Used with Agilent 8920B and Controlled via Serial Port for TDMA Subscriber Unit Tests

NOTE: To control the PCS Interface via the serial port, the firmware of the Agilent 8920B must be

B.05.00 and above, and the Agilent 83206A must be used for the Test System’s Cellular Adapter. Contact your nearest Agilent Technologies sales office for firmware upgrade information.

Unpack the PCS Interface and Accessories

NOTE: This product passed all applicable electrical and mechanical inspections before it was

Follow these steps to prepare the Test System for setup:

1 Unpack the test equipment and accessories.

2 Placing the equipment:

a If you are placing the Test System horizontally (on a bench top, for example) place

the Test Set (together with the Cellular Adapter) on the top of the PCS Interface. Position the bumpers (feet) of the Test Set so that they are stably seated between the forward and rear bumpers of the PCS Interface. Refer to figure 7.

Chapter 2, Installation

When Used with Agilent 8920B and Controlled via Serial Port for TDMA Subscriber Unit

Tests

Test Set Cellular Adapter

PCS Interface

Figure 7 Horizontal stacking configuration (side view) for the Agilent 8920 Test Configuration

Chapter 2, Installation

When Used with Agilent 8920B and Controlled via Serial Port for TDMA Subscriber Unit Tests

b If you are placing the Test System vertically (as is often done when putting the

equipment on the floor), the PCS Interface’s rear feet must be placed on the same surface as those of the Test Set. After placement, rotate the handle of the Test Set downwards to provide support for the PCS Interface. Refer to figure 8.

Test Set Cellular Adapter

PCS Interface

Figure 8 Vertical configuration (side view) for the Agilent 8920 Test Configuration

Chapter 2, Installation

When Used with Agilent 8920B and Controlled via Serial Port for TDMA Subscriber Unit

Tests

Cable Connections Follow these steps to prepare the test equipment for use:

NOTE: You should have made all connections between the Test Set and Cellular Adapter at this

point. Refer to the User’s Guide for your particular Cellular Adapter for instructions on connecting it to the Test Set. Verify these connections before continuing with these steps.

1 Set the GPIB Address Selector on the rear panel of the PCS Interface as follows.

GPIB/Ser switch Ser GPIB address any

2 Make the front and rear panel connections shown in figure 9.

3 Turn on the PCS Interface.

NOTE: The PCS Interface must be powered on and connected before the Agilent 8920B is powered

on. If the PCS Interface is not powered on first, the Agilent 8920B will not detect it.

4 Turn on the Test Set.

Chapter 2, Installation

When Used with Agilent 8920B and Controlled via Serial Port for TDMA Subscriber Unit Tests

PWR REF

OFF-CHANNEL

PULSE

MOD

ANALYZER ANALYZE R ANALYZER GENERATOR

UNLOCK

DATA

BASEBAND

CLOCK IN

DATA IN

TRIGGERINBASEBAND

DATA IN

From Agilent 8920 DUPLEX OUT To Agilent 83236 FROM DUPLEX OUT (Cable P/N 83236-61603)

Note:

Connections between the Test Set and Cellular Adapter are not shown in this figure.

From Agilent 8920 SERIAL PORT To Agilent 83236 SERIAL PORT (Cable P/N 83236-61609)

To Agilent 83236 REF IN (BNC “L” adapter P/N 1250-

0076)

83236B

PCS INTERFACE

POWER

ONOFF

TEST SET

FROM DUPLEX OUT TO ANT IN

From Agilent 8920 ANT IN To Agilent 83236 TO ANT IN (Cable P/N 83236-61603)

DIAG

GEN BB

ANL

OUT

DATA OUT

TRIG OUT

CONTROL I/O

BIT CLK

SYMBOL

OUT

CLK OUT

114.3 MHz IF IN

RF IN

10 MHz REF OUT

RF OUT

FRAME CLK OUT

REF IN

1.8-2.0 GHz UUT

RF IN/OUT RF OUT only

RF IN/OUT

EXT IF IN

ANT

(User-supplied cable)

From Agilent 83206 REF IN To Agilent 8920 10 MHz REF OUTPUT (Supplied with cellular adapter)

TDMA Subscriber Unit

To Agilent 8920 10 MHz REF OUTPUT (BNC “T” adapter P/N 1250-0781)

From Agilent 8920 10 MHz REF OUTPUT To Agilent 83236 REF IN (Cable P/N 8120-1839)

Figure 9 Connection diagrams for the Agilent 8920 Test Configuration (TDMA Subscriber

Unit Tests; Serial Control)

Chapter 2, Installation

When Used with Agilent 8920A,B and Controlled via GPIB for TDMA Subscriber Unit Tests

Unpack the PCS Interface and Accessories

NOTE: This product passed all applicable electrical and mechanical inspections before it was

Follow these steps to prepare the Test System for setup:

1 Unpack the test equipment and accessories.

Chapter 2, Installation

When Used with Agilent 8920A,B and Controlled via GPIB for TDMA Subscriber Unit Tests

2 Placing the equipment:

a If you are placing the Test System horizontally (on a bench top, for example) place

Test Set Cellular Adapter

PCS Interface

Figure 10 Horizontal stacking configuration (side view) for the Agilent 8920 or Agilent 8921

Test Configuration

Chapter 2, Installation

When Used with Agilent 8920A,B and Controlled via GPIB for TDMA Subscriber Unit Tests

b If you are placing the Test System vertically (as is often done when putting the

PCS Interface

Test Set

Cellular Adapter

Figure 11 Vertical configuration (side view) for the Agilent 8920 or Agilent 8921 Test

Configuration

Chapter 2, Installation

When Used with Agilent 8920A,B and Controlled via GPIB for TDMA Subscriber Unit Tests

Cable Connections Follow these steps to prepare the test equipment for use:

NOTE: You should have made all connections between the Test Set and Cellular Adapter at this

point. Refer to the User’s Guide for your particular Cellular Adapter for instructions on connecting it to the Test Set. Verify these connections before continuing with these steps.

1 Set the GPIB Address Selector on the rear panel of the PCS Interface as follows.

GPIB/Ser switch GPIB GPIB address 19 (for the manual control software and connectivity test)

2 Make the front and rear panel connections shown in figure 12.

Consult the User's Guide for your Cellular Adapter for further details about using these timebase signals in your measurements.

3 Turn on the PCS Interface.

NOTE: The PCS Interface must be powered on and connected before the Agilent 8920B is powered

on. If the PCS Interface is not powered on first, the Agilent 8920A,B will not detect it.

4 Turn on the Test Set.

Chapter 2, Installation

When Used with Agilent 8920A,B and Controlled via GPIB for TDMA Subscriber Unit Tests

PWR REF

OFF-CHANNEL

PULSE

MOD

83236B

PCS INTERFACE

POWER

ONOFF

TEST SET

FROM DUPLEX OUT TO ANT IN

ANALYZER ANALYZE R ANALYZER GENERATOR

UNLOCK

DATA

BASEBAND

CLOCK IN

DATA IN

1.8-2.0 GHz UUT

RF IN/OUT RF OUT only

TRIGGERINBASEBAND

DATA IN

From Agilent 8920 DUPLEX OUT To Agilent 83236 FROM DUPLEX OUT (Cable P/N 83236-61603)

Note:

From Agilent 8920 ANT IN To Agilent 83236 TO ANT IN (Cable P/N 83236-61603)

RF IN/OUT

(User-supplied cable)

From Agilent 83201 or 83206 REF IN To Agilent 8920 10 MHz REF OUTPUT (Supplied with cellular adapter)

ANT

Connections between the Test Set and Cellular Adapter are not shown in this figure.

From Agilent 83201 or 83206 FRAME CLK OUT To Agilent 83236 EXT TRIG IN (Cable P/N 83215-61644)

From Agilent 8920 GPIB To Agilent 83236 GPIB (Mod. No. Agilent 10833D)

To Agilent 83236 REF IN (BNC “L” adapter P/N 1250-0076)

DIAG

GEN BB

ANL

BIT CLK

DATA OUT

TRIG OUT

SYMBOL

OUT

CLK OUT

OUT

CONTROL I/O

114.3 MHz IF IN

REF IN10 MHz REF OUT

FRAME

EXT

RF OUT

CLK OUT

RF IN

IF IN

TDMA Subscriber Unit

To Agilent 8920 10 MHz REF OUTPUT (BNC “T” adapter P/N 1250-0781)

From Agilent 8920 10 MHz REF OUTPUT To Agilent 83236 REF IN (Cable P/N 8120-1839)

Figure 12 Connection diagrams for the Agilent 8920 Test Configuration (TDMA Subscriber

Unit Tests; GPIB Control)

Chapter 2, Installation

When Used with Agilent 8921A for CDMA Base Stations Tests

Unpack the PCS Interface and Accessories

NOTE: This product passed all applicable electrical and mechanical inspections before it was

Follow these steps to prepare the Test System for setup:

1 Unpack the test equipment and accessories.

2 Placing the equipment:

a If you are placing the Test System horizontally (on a bench top, for example) place

Test Set Cellular Adapter

PCS Interface

Figure 13 Horizontal stacking configuration (side view) for the Agilent 8921 Test Configuration

Chapter 2, Installation

When Used with Agilent 8921A for CDMA Base Stations Tests

b If you are placing the Test System vertically (as is often done when putting the

Test Set Cellular Adapter

PCS Interface

Figure 14 Vertical configuration (side view) for the Agilent 8921 Test Configuration

Chapter 2, Installation

When Used with Agilent 8921A for CDMA Base Stations Tests

Cable Connections Follow these steps to prepare the test equipment for use:

NOTE: You should have made all connections between the Test Set and Cellular Adapter at this

point. Refer to the User’s Guide for your particular Cellular Adapter for instructions on connecting it to the Test Set. Verify these connections before continuing with these steps.

1 Set the GPIB Address Selector on the rear panel of the PCS Interface as follows.

GPIB/Ser switch GPIB GPIB address 19 (for the manual control software and connectivity test)

2 Make the front and rear panel connections shown in figure 15.

Consult the User's Guide for your Cellular Adapter for further details about using these timebase signals in your measurements.

3 Turn on the PCS Interface.

NOTE: The PCS Interface must be powered on and connected before the Agilent 8920B is powered

on. If the PCS Interface is not powered on first, the Agilent 8921A will not detect it.

4 Turn on the Test Set.

RF IN/OUT

TEST SET

Chapter 2, Installation

When Used with Agilent 8921A for CDMA Base Stations Tests

EVEN SECOND/

CDMA

TIMEBASE IN

SYNC IN

PWR REF

UNLOCK

DIAGNOSTIC

MONITOR OUT

1.2288 MHz OUT CHIP CLOCK

19.6608 MHz OUT 16 X CHIP CLOCK

External attenuator may be

required. Consult PCS Interface Specifications.

User-supplied cables.

From Agilent 8921 ANT IN To Agilent 83236 TO ANT IN (Cable P/N 83236-61603)

83205A

CDMA CELLULAR ADA PTER

TRIGGER/

RF IN/OUT

QUALIFIER IN

MAX.PWR

60W

EVEN SECOND/

DATA

SYNC IN

From Agilent 8921 DUPLEX OUT To Agilent 83236 FROM DUPLEX OUT (Cable P/N 83236-61603)

SYNTH REF IN

SYNTH REF IN 10 MHz OUT

From Agilent 83203 or 83205 10 MHz OUT To Agilent 8921 10 MHz REF INPUT (supplied with cellular adapter)

From Agilent 8921 GPIB To Agilent 83236 GPIB (Mod. No. Agilent 10833D)

To Agilent 83236 REF IN (BNC “L” adapter P/N 1250-0076)

83236B

PCS INTERFACE

POWER

ONOFF

TEST SET

FROM DUPLEX OUT TO ANT IN

1.8-2.0 GHz UUT

RF IN/OUT RF OUT only

CDMA Base Station

Base Station RX antenna

CDMA CLOCK OUTPUTS

CONTROL I/O

114.3 MHz IF IN I BASEBAND OUT

AUX

DSP IN

RF INIQRF OUT

Q BASEBAND OUT

REF OUT

** **

10 MHz

OPTIONAL MOD OUT

SERIAL PORT

Note:

Base Station

TX port or coupler

Even Sec Clk

19.6608 MHz Clk (or other reference)

Connections between the Test Set and Cellular Adapter are not shown in this figure.

To Agilent 8921 10 MHz REF OUTPUT (BNC “L” adapter P/N 1250-0076)

From Agilent 8921 10 MHz REF OUTPUT To Agilent 83236 REF IN (Cable P/N 8120-1839)

Figure 15 Connection Diagram for the Agilent 8921 Test Configuration (CDMA Base Station

Tests)

Chapter 2, Installation

When Used with Agilent 8921A for TDMA Base Stations Tests

Unpack the PCS Interface and Accessories

NOTE: This product passed all applicable electrical and mechanical inspections before it was

Follow these steps to prepare the Test System for setup:

1 Unpack the test equipment and accessories.

2 Placing the equipment:

a If you are placing the Test System horizontally (on a bench top, for example) place

Test Set Cellular Adapter

PCS Interface

Figure 16 Horizontal stacking configuration (side view) for the Agilent 8921 Test Configuration

Chapter 2, Installation

When Used with Agilent 8921A for TDMA Base Stations Tests

b If you are placing the Test System vertically (as is often done when putting the

Test Set Cellular Adapter

PCS Interface

Figure 17 Vertical configuration (side view) for the Agilent 8921 Test Configuration

Chapter 2, Installation

When Used with Agilent 8921A for TDMA Base Stations Tests

Cable Connections Follow these steps to prepare the test equipment for use:

NOTE: You should have made all connections between the Test Set and Cellular Adapter at this

point. Refer to the User’s Guide for your particular Cellular Adapter for instructions on connecting it to the Test Set. Verify these connections before continuing with these steps.

1 Set the GPIB Address Selector on the rear panel of the PCS Interface as follows.

GPIB/Ser switch GPIB GPIB address 19 (for the manual control software and connectivity test)

2 Make the front and rear panel connections based on your UUT type:

• TDMA base station with frame clock: See figure 18.

• TDMA base station without frame clock: See figure 19.

Consult the User's Guide for your Cellular Adapter for further details about using these timebase signals in your measurements.

3 Turn on the PCS Interface.

NOTE: The PCS Interface must be powered on and connected before the Agilent 8920B is powered

on. If the PCS Interface is not powered on first, the Agilent 8921A will not detect it.

4 Turn on the Test Set.

Chapter 2, Installation

When Used with Agilent 8921A for TDMA Base Stations Tests

83204A

DUAL MODE CELLULAR AD APTER

83236B

PCS INTERFACE

POWER

ONOFF

FROM DUPLEX OUT TO ANT IN

TEST SET

PWR REF

ANALYZER ANALYZER ANALYZER GENERATOR

UNLOCK

DATA

BASEBAND

CLOCK IN

DATA IN

1.8-2.0 GHz UUT

RF IN/OUT RF OUT only

TRIGGERINBASEBAND

DATA IN

External attenuator may be required. Consult PCS Interface Specifications.

User-supplied cables.

From Agilent 8921 ANT IN To Agilent 83236 TO ANT IN (Cable P/N 83236-61603)

TDMA Base Station

From Agilent 8921 DUPLEX OUT

(RX antenna)

To Agilent 83236 FROM DUPLEX OUT (Cable P/N 83236-61603)

From Agilent 83201 or 83204 10 MHz REF OUT To Agilent 8921 10 MHz REF INPUT (supplied with cellular adapter)

REF IN

114.3 MHz IF IN

DIAG

GEN BB

ANL

OUT

DATA OUT

TRIG OUT

CONTROL I/O

BIT CLK

SYMBOL

OUT

CLK OUT

REF IN

10 MHz

REF OUT EX T

RF IN

IF IN

RF OUT

FRAME CLK OUT

EXPANSION

SERIAL PORT

Note:

(TX port or coupler)

Frame Clock (25 or 50 Hz) (required for RX meas.)

Connections between the Test Set and Cellular Adapter are not shown in this figure.

From Agilent 8921 GPIB To Agilent 83236 GPIB (Mod. No. Agilent 10833D)

To Agilent 83236 REF IN (BNC “L” adapter P/N 8120-

0076)

To Agilent 8921 10 MHz REF OUTPUT (BNC “L” adapter P/N 8120-0076)

From Agilent 8921 10 MHz REF OUTPUT To Agilent 83236 REF IN (Cable P/N 8120-1839)

Figure 18 Connection Diagram for the Agilent 8921 Test Configuration (TDMA Base Station

Tests with Frame Clock)

Chapter 2, Installation

When Used with Agilent 8921A for TDMA Base Stations Tests

83204A

DUAL MODE CELLULAR ADAPTER

PWR REF

ANALYZER ANALYZER ANALYZER GENERATOR

UNLOCK

DATA

BASEBAND

CLOCK IN

DATA IN

TRIGGERINBASEBAND

DATA IN

External attenuator may be required. Consult PCS Interface Specifications.

User-supplied cables.

From Agilent 8921 ANT IN To Agilent 83236 TO ANT IN (Cable P/N 83236-61603)

POWER

From Agilent 8921 DUPLEX OUT To Agilent 83236 FROM DUPLEX OUT (Cable P/N 83236-61603)

From Agilent 83201 or 83204 10 MHz REF IN

DIAG

To Agilent 8921 10 MHz REF

GEN BB

OUT

DATA OUT

OUTPUT (supplied with cellular adapter)

From Agilent 8921 GPIB To Agilent 83236 GPIB (Mod. No. Agilent 10833D)

To Agilent 83236 REF IN (BNC “L” adapter P/N 8120-

0076)

ONOFF

TRIG OUT

83236B

PCS INTERFACE

ANL

BIT CLK

OUT

SYMBOL CLK OUT

TEST SET

FROM DUPLEX OUT TO ANT IN

CONTROL I/O

RF IN

114.3 MHz IF IN

RF OUT

10 MHz

REF OUT E XT

FRAME CLK OUT

REF IN

IF IN

SERIAL PORT

1.8-2.0 GHz UUT

RF IN/OUT RF OUT only

EXPANSION

TDMA Base Station

(RX antenna)

(TX port or coupler)

Note:

Connections between the Test Set and Cellular Adapter are not shown in this figure.

To Agilent 8921 10 MHz REF OUTPUT (BNC “T” adapter P/N 8120-0781)

From Agilent 8921 10 MHz REF OUTPUT To Agilent 83236 REF IN (Cable P/N 8120-1839)

Figure 19 Connection Diagram for the Agilent 8921 Test Configuration (TDMA Base Station

Tests without Frame Clock)

Chapter 2, Installation

Load and Run the Connectivity Test Software (Option 001 or 002)

The connectivity test is used to verify that the connections between the test equipment are correct and that the cables are intact. The software also performs basic functionality checks of each instrument in the Test System.

NOTE: The connectivity test is supplied on the memory card shipped with the Agilent 83236B

option 001, utility software on PCMCIA card, or option 002, utility software on EPSON memory card. Use the PCMCIA card for the Agilent 8924C or Agilent 8920B; use the EPSON memory card for the Agilent 8920A or Agilent 8921A.

1 Make proper connections between the Test Set and the PCS Interface.

2 When the PCS Interface is controlled via GPIB Interface, set the GPIB address to 19

on the rear panel of the PCS Interface.

3 When you are testing base stations, make front and rear panel connections shown in fig-

ure 20.

4 To prepare the Test Set for running the connectivity test, perform the steps shown in

figure 21.

5 To load and run the software, follow the steps of figure 22.

NOTE: Use the N(f)-BNC(m) and the N(m)-BNC(f) adapters shipped with the Agilent 83236B

options 001 and 002 when they are required to connect the cables.

Chapter 2, Installation

Load and Run the Connectivity Test Software (Option 001 or 002)

PWR REF

OFF-CHANNEL

PULSE MOD

OUT

ANALYZER ANALYZER ANALYZER GENERATOR

UNLOCK

DATA

BASEBAND

CLOCK IN

DATA IN

TRIGGERINBASEBAND

DATA IN

From Agilent 83236 FROM DUPLEX OUT To Agilent 8920,21 DUPLEX OUT (Cable P/N 83236-61603)

Note:

Connections between the Test Set and Cellular Adapter are not shown in this figure.

From Agilent 8920,21 GPIB To Agilent 83236 GPIB (Mod. No. Agilent 10833D)

83236B

PCS INTERFACE

POWER

ONOFF

TEST SET

FROM DUPLEX OUT TO ANT IN

1.8-2.0 GHz UUT

RF IN/OUT RF OUT only

From Agilent 83236 TO ANT IN To Agilent 8920,21 ANT IN (Cable P/N 83236-61603)

From Agilent 8920,21 10 MHz

114.3 MHz IF IN

10 MHz REF OUT

DIAG

GEN BB

ANL

BIT CLK

OUT

DATA OUT

TRIG OUT

CONTROL I/O

SYMBOL

OUT

CLK OUT

REF IN

FRAME

EXT

RF OUT

CLK OUT

RF IN

IF IN

REF OUTPUT To Agilent 8320NX REF IN (Supplied with cellular adapter)

To Agilent 8920,21 10 MHz REF OUTPUT (BNC “T” adapter P/N 1250-0781)

From Agilent 8920,21 10 MHz REF OUTPUT To Agilent 83236 REF IN (Cable P/N 8120-1839)

Figure 20 Connectivity Test Connection diagrams for the Base Station Test Configuration

Chapter 2, Installation

Load and Run the Connectivity Test Software (Option 001 or 002)

Press POWER.

Insert the utility

software card.

Wait for a display to appear

(approximately 20 seconds).

CDMA CALL

CELL CALL

SPECTR

ENCOD

SPEC

GEN

CDMA

ANALOG

RANG

MSRPT

DECOD

SCOPE

DUPLE

END

ACP TXAF

CALL ANS

USE DAT

k1’

k2’

k3’

ASSIG

RELEA

POWE

DO NOT

RF IN/OUT

MAX PWR

DUPLEX

MAX

ANTENNA

FUNCTIO

I/O CONFI

MSG

HELP

PREV TESTS

DATA

REF

METE

AVG

INCR

LO HI

CURSO PUSH

CANCSHIFT

INSTRUMENT

ADRS

SAVE

LOCAL

RECAL

789

456

123

YES

ON/

AUDIO SQUELVOLUMIC/

MAX

HOLD MEAS

ENTER

GHz

MHz

kHz

Hzms% Ωppm

AUDIO IN

MAX

PRESE

MEMO

LOHI

Figure 21 Turning power on and inserting the memory card.

Press

PRESET.

Preset returns the Test Set to the RX Test screen.

Chapter 2, Installation

Load and Run the Connectivity Test Software (Option 001 or 002)

Press TESTS to display the

TESTS (Main Menu) screen.

If you are in the IBASIC TESTs screen, press PRESET before pressing TESTS.

Position cursor at Card and select it.

3 4

Position cursor at Select Procedure Location:

and select it.

Position cursor at Select Procedure Filename: and select it.

Position cursor at Choices: and select

SYS_CONN.

Figure 22 Loading and Running the Connectivity Test

Position cursor at Run Test and select it.

The software is now loading.

Loading Time: First time: approximately

1.5 minutes. After first time: approximately 10 seconds.

Chapter 2, Installation

Load and Run the Connectivity Test Software (Option 001 or 002)

Notes about GPIB connections

Connectivity Test guidelines

Disconnect other GPIB devices, especially system controllers, from the Test System before running the connectivity test. The Test Set is the system controller when the connectivity test is running and another (external) controller on the bus will generate a bus conflict error.

The following general guidelines may be useful to you when running the connectivity test.

Presentation of results on the Test Set’s display

The software uses the following conventions when displaying information on the Test Set’s display:

Top display line: the very first line of text at the top of the Test Set display is used to indicate the test being performed. Two-line inverse text area: just below the top display line is a two-line inverse video area that is used to prompt the user with instructions. Main display area: below the inverse area is the main display area of the Test Set. This large area is used to display test results and to present error messages that may occur. Softkey (USER key) label area: at the upper right of the Test Set’s display are five inverse video labels that are used to indicate the function of the corresponding softkey (k1 to k5). These keys are used to run the software, continue it at key points, and for other assorted functions.

Pauses during connectivity test execution

As the testing is done to verify connectivity, the software will display abbreviated results on the main screen of the Test Set’s display. If the program pauses and gives a prompt before the testing is complete, it is typically to communicate that it has found a problem. In this case the program will suggest cable paths (and cables) to check before going on with the testing.

Chapter 2, Installation

Where to go next

If you have run the connectivity software with a pass result

If you encountered failures when running the connectivity software

Now that the Test System’s operation has been verified, you will want to start making tests on radio equipment.

• If you are planning to test CDMA subscriber units using the Agilent 8924C with the serial port control, refer to the Agilent 8924C User’s Guide.

• If you are planning to test TDMA subscriber units using the Agilent 8920B with the serial port control, refer to the Agilent 8920B User’s Guide.

• If you are planning to test CDMA base stations using the Agilent 8921A, refer to the CDMA/PCS Base Station Test Software User’s Guide.

• If you are planning to test radio equipment using the Agilent 8920A,B, Agilent 8921A, or Agilent 8924C with the GPIB interface control, refer to the Manual Control Soft- ware User’s Guide for the next steps in making tests using the manual control software.

If it finds problems, the connectivity software will prompt you to check various connections in the Test System. The software will then repeat the testing to verify that the problem has been corrected.

If failures persist after running the Test System connectivity software, you may have a failure in one of the pieces of test equipment in the Test System. The connectivity software will attempt to identify the failed unit. Once the suspected failed unit is identified, contact your nearest Agilent Technologies Service Center for instructions on servicing the unit.

In North America you may call, toll-free, 1-800-827-3848 (between 9 am and 5 pm, Pacific time) for instructions on further troubleshooting and how to proceed if repairs are needed. Refer to the last page of this manual for service center addresses and locations.

rogramming the PCS Interface using GPIB Control

What’s included in this chapter:

• Introduction

• Overview of programming issues

• PCS Interface programming guide

Programming the

PCS Interface

Chapter 3, Programming the PCS Interface using GPIB Control

Introduction

The PCS Interface extends the frequency range of the Test Set to the 1710 to 1785 MHz, 1805 to 1910 MHz, and 1930 to 1990 MHz PCS band. Since the PCS Interface has no front-panel user controls, its only available control interface is through GPIB.

NOTE: To control the PCS Interface over GPIB, some form of control software must be used. The

software can run on either an external controller or in the Test Set’s IBASIC controller. No “manual” front panel controls of the PCS Interface are provided.

The information in this chapter does not apply when an Agilent 8924C is controlling the PCS Interface over the serial port.

Purpose This chapter is designed to assist Software Application Designers who will be

integrating the PCS Interface into their own testing system and who as a result, will need to develop their own software. It provides task flow diagrams, programming examples, and recommends a testing theory to help guide the development of control software.

When integrating the PCS Interface into a custom test system, there are a few topics which must be considered. The following discussions provide general overviews of these topics. The remaining sections of this chapter then provide more specific procedures for making the various settings and measurements with the PCS Interface.

Chapter 3, Programming the PCS Interface using GPIB Control

Overview of Programming Issues

Features The basic features of the PCS Interface include:

• A PCS frequency RF generator for receiver testing

• A PCS frequency signal analyzer for transmitter testing

• A power detector for direct power measurements

• A temperature sensor for accuracy compensations

The PCS Interface takes the signal generated by the Test Set (810 to 995 MHz) at its FROM DUPLEX OUT port and upconverts it to a PCS frequency band (1710 to 1785 MHz, 1805 to 1910 MHz, or 1930 to 1990 MHz) signal at the unitunder-test (UUT) port.

Conversely, the PCS Interface takes the UUT’s transmitted signal (1710 to 1785 MHz, 1805 to 1910 MHz, or 1910 to 1990 MHz), downconverts it to a frequency the Test Set is capable of analyzing (650 to 940 MHz), and applies it to the Test Set’s ANT IN port. Both the PCS Interface’s generator and analyzer paths include variable attenuators for controlling signal levels in the Test System.

The power detector inside the PCS Interface provides direct measurements of the UUT’s transmitter power.

In order to provide the best possible accuracy and confidence in measurements, the PCS Interface has built-in temperature sensing circuitry which is used to determine whether re-calibration is needed. Three compensations are available for re-calibration and will be discussed in detail later in this chapter.

Chapter 3, Programming the PCS Interface using GPIB Control

Overview of Programming Issues

System Connections

NOTE: It is assumed that all connections between the Test Set and Cellular Adapter have been

made. Refer to the User’s Guide for your Cellular Adapter for instructions on connecting it to the Test Set.

For connections between the Test Set and PCS Interface, refer to chapter 2, "Installation".

UUT Port Selection The PCS Interface has two ports available for UUT connection; the RF IN/OUT

port and the RF OUT only port. Use the PCS Interface’s RF IN/OUT port for single-port devices (for example, a subscriber unit) or its RF OUT only port for devices with separate RX and TX ports (for example, a base station).

Frequency Setting The PCS Interface provides a PCS frequency generator by upconverting the Test

Set’s generator signal with a stepped local oscillator (LO) and mixer. It downconverts a PCS frequency transmitter signal for analysis by the Test Set using a fixed frequency LO and mixer. For convenience, conversion bypass paths are also provided which eliminate any connection changes when testing devices in the 800 to 960 MHz band.

Agilent 83236B

Chapter 3, Programming the PCS Interface using GPIB Control

Overview of Programming Issues

EXT TRIG IN (Frame C lk from Agilent 8320NX)

ADC CPU GPIB

GPIB (to Agilent 892NX)

Serial (to Agilent 8924C)

DET OUT (to Agilent 8924C)

REF IN (from Agilent 892NX)

REF OUT

To ANT IN 650 to 940 MHz (to Agilent 892NX)

FROM DUPLEX OUT 810 to 995 MHz (from Agilent 892NX)

RF IN/OUT 1710 to 1990 MHz (to UUT)

RF OUT only 1710 to 1990 MHz (to UUT)

Serial

TEMP Sense

1050 or 1060 MHz

SW1

SW2

Pwr Det

TX ATTEN

0 to 40 dB 1 dB step

RX ATTEN

0 to 70 dB 10 dB step

790, or 990 MHz to 1110 MHz

10 MHz step

REF

Figure 23 PCS Interface block diagram

NOTE: The frequency conversion tables, used internally by the PCS Interface’s CPU to determine

the Test Set’s frequencies, are shown in Appendix A, Frequency Conversion Tables on page 137.

The frequencies desired at the UUT’s ports are set using GPIB commands. When the PCS Interface receives the generator or analyzer frequency settings over GPIB, its CPU automatically controls the conversion/bypass and internal LO settings in its generator and analyzer paths. In addition, the PCS Interface’s CPU determines the frequencies required for the Test Set’s RF generator and analyzer. These values are returned over GPIB and are then used by the controlling software to set the Test Set’s generator and analyzer frequencies.

Chapter 3, Programming the PCS Interface using GPIB Control

Overview of Programming Issues

Generator level Setting

The PCS Interface’s generator path has a 0 to 70 dB attenuator with 10 dB steps which provide coarse level settings of the RF generator. Fine level control is provided by the 0.1 dB resolution of the Test Set’s DUPLEX OUT port.

The output signal level desired at the UUT’s port is set using an GPIB command. When the PCS Interface’s generator level setting is received over GPIB, the CPU of the PCS Interface automatically determines the appropriate generator path attenuator setting, and computes a level which should be set at the Test Set’s DUPLEX OUT port. This level is returned over GPIB and is then used by the controlling software to set the Test Set’s RF generator level.

The automatic attenuator and level computations performed by the PCS Interface’s CPU include two factors which are stored internally; a temperature (of the PCS Interface) factor and an attenuation step accuracy factor. The temperature correction factor is updated during the generator level temperature compensation which is discussed later. The attenuator step accuracy correction factor is established as part of the factory calibration. Both factors are also a function of the current generator frequency. Therefore, the generator level setting should be done after setting the desired RF generator frequency.

Chapter 3, Programming the PCS Interface using GPIB Control

Overview of Programming Issues

Analyzer Attenuator Setting

The PCS Interface’s analyzer path has a 0 to 40 dB attenuator with 1 dB steps. This attenuator is adjusted to optimize the signal level through the PCS Interface’s downconverter to the Test Set’s ANT IN port.

After the UUT’s transmitter signal is applied to the PCS Interface’s RF IN/OUT port, the setting of the analyzer path attenuator can be automatically set using an GPIB command. When the command is received, the PCS Interface uses the internal peak detector to measure the peak power at its RF IN/OUT port, then computes and sets the analyzer path attenuator accordingly.

NOTE: This is a one-time setting and does not place the PCS Interface in an auto-ranging mode. If

the TX signal level changes, the attenuation setting command should be sent again.

The automatic computation performed by the PCS Interface’s CPU to set the attenuator uses a factor stored in the PCS Interface; the attenuation step accuracy factor. The attenuator step accuracy correction factor is established as part of the factory calibration. This factor is also a function of the current analyzer frequency, therefore the automatic attenuator setting should be done after the UUT’s transmitter frequency is set in the PCS Interface and after the UUT’s transmitter signal is applied to the RF IN/OUT port.

NOTE: The analyzer path attenuator can also be set to a specified value over GPIB.

Chapter 3, Programming the PCS Interface using GPIB Control

Overview of Programming Issues

Power Detector, Triggering Types, and Power Measurements

The power detector

The PCS Interface has a built-in detector for direct power measurements of the UUT’s transmitter signals connected to the RF IN/OUT port.

Triggering types

Trigger and data collection features have been included to provide direct power measurements of continuous wave (CW), TDMA, and continuous CDMA signals. Three triggering types are available.

• Immediate trigger

• Internal amplitude trigger

• External trigger

Detailed procedures for setting trigger types and data collection conditions are discussed later in this chapter.

Power measurements

After the UUT’s transmitter signal is applied to the RF IN/OUT port and the desired trigger and data collection conditions are set in the PCS Interface, the power measurement is performed using an GPIB query. When the query command is received, the PCS Interface’s CPU collects power measurement samples from the internal detector, selects the appropriate data, calculates the resulting power, then returns the result over GPIB.

The power calculation performed by the PCS Interface’s CPU includes two correction factors, frequency drift and dc drift correction factors which are established during factory calibration. To assure that the correct factors are applied, the desired UUT transmitter frequency should be set in the PCS Interface and the dc offset compensation should be performed before making the power measurement.

Chapter 3, Programming the PCS Interface using GPIB Control

Overview of Programming Issues

Temperature Compensations

Power measurement accuracy and signal level accuracy in the PCS Interface are affected by temperature. The PCS Interface has an internal temperature sensor which is used during compensations which are necessary to ensure that the accuracy specified is achieved. Temperature compensations, which use a temperature sensor in the PCS Interface, are used to re-calibrate the PCS Interface when the temperature variations exceed an acceptable value. Default temperature changes are 1°C. This default value is required to maintain the performance specifications shown in chapter 5, "Specifications".

The two compensations

1. DC offset temperature compensation

This compensation procedure removes the dc drift of the power detector to provide accurate power measurements of signal levels less than 0 dBm. During this procedure the UUT connected to the PCS Interface’s RF IN/OUT port is disconnected from the analyzer path so the zero power condition can be measured. This process updates the dc drift compensation factor used in power measurements.

Before making a transmitter power measurement, the dc offset temperature compensation should be performed using a single GPIB command.

Since the UUT is internally disconnected from the Test Set during dc offset compensation, it should be performed before an active traffic/voice channel link is established if over-the-air protocol is used. Otherwise, the active call may be dropped.

NOTE: Over-the-air protocol - The Test Set can essentially simulate a cellular base station and

use over-the-air protocol to establish and maintain an active voice/traffic channel. This protocol can be used with a subscriber unit UUT connected to the Test System.

Chapter 3, Programming the PCS Interface using GPIB Control

Overview of Programming Issues

2. Generator level temperature compensation

This compensation is necessary to maintain the generator’s output level accuracy which is used for testing receivers. During this procedure the UUT is automatically internally disconnected from the generator and analyzer path. The PCS Interface’s internal compensation factors are used to compute the generator path attenuator values and the required signal level from the Test Set’s DUPLEX OUT port.

Before using the generator for receiver testing, the need for a new generator level temperature compensation should be checked. The controlling software queries the PCS Interface to determine if a temperature compensation is necessary. If the compensation is necessary, it is performed by the controlling software with a few GPIB commands.

Since the UUT is internally disconnected from the Test Set during generator level compensation, it should be performed before an active traffic/voice channel link is established if over-the-air protocol is used. Otherwise, the active call may be dropped.

NOTE: Turn on desired modulation before the generator level temperature compensation for best

accuracy.

Chapter 3, Programming the PCS Interface using GPIB Control

PCS Interface Programming Guide

For a complete description of the PCS Interface GPIB commands used in this chapter see chapter 4, "GPIB Commands".

Conventions Used Examples given in this chapter will include: the instrument to be programmed, the

command string, and the reference page in this manual for the given command string.

For example:

To the PCS Interface> COMP:TEMP:REQ:RES (page 104)

To the Test Set> RFAN:INP ‘Ant’

NOTE: Reference information (reference page) for the command strings used to program the Test

Set are not included in this manual. Refer to your Test Set’s programming guide for complete descriptions.

Chapter 3, Programming the PCS Interface using GPIB Control

Test Procedure Flow

Figure 24 is an overview of the initialization, set up, and measurement steps required in control software when using a PCS Interface in a test system.

Start

Figure 24

Initialize the

System

Set Up and

Measure

More?

End

Place the Test Set and PCS Interface into known instrument states.

Set up the Test Set for use with the PCS Interface.

Set up and make each of the desired measurements.

Initialize the System

Figure 25 shows the tasks necessary to initialize the Test System.

Chapter 3, Programming the PCS Interface using GPIB Control

Initialize the System

Test Procedure Flow

Start

Initialize the System

Reset the System

Initialize the

System

Initialize the PCS Interface

Temperature Compensation

Set Up and

Measure

More?

End

Set Up the Test Set’s

Ports and Tune Mode

Figure 25

Reset the System The PCS Interface and the Test Set need to be reset to their default instrument

settings.

1. Use the following command string to reset the Test Set and query for completion.

To the Test Set> *RST;*OPC?

2. Use the following command string to reset the PCS Interface and query for completion.

To the PCS Interface> *RST;*OPC? (page 99)

Chapter 3, Programming the PCS Interface using GPIB Control

Initialize the System

Set Up the Test Set’s Ports and Tune Mode

When The Test Set was reset in the previous step, its RF IN/OUT port was designated by default. The PCS Interface requires connections to the Test Set’s DUPLEX OUT and ANT IN ports.

Placing the Test Set in Manual Tune mode will provide accurate frequency error results when transmitter frequency measurements are made.

1. Use the following command string to set the Test Set’s RF analyzer port to ANT IN.

To the Test Set> RFAN:INP ‘Ant’

2. Use the following command string to set the Test Set’s RF generator port to DUPLEX OUT.

To the Test Set> RFG:OUTP ‘Dupl’

3. Use the following command string to set the Test Set’s tune mode to Manual.

To the Test Set> RFAN:TMOD ‘Manual’

Set Up and Measure

Figure 26 shows the tasks necessary to set up and measure with the Test System.

Test Procedure Flow

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

Start

Initialize the

System

Set Up and

Measure

More?

End

Set the Test Frequencies

and Levels (for RX or TX testing)

Perform the Temperature

Initialize

Set Up the UUT

Ports

Compensations

Figure 26

Activate the

UUT

Set the TX Attenuator

Level (for TX testing)

Set up the Power Detector

(for TX power measurements)

Make the Measurement

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

Initialize 1. Use the following command string to initialize the PCS Interface and query for

completion.

To PCS Interface> SYST:PRES; *OPC? (page 113)

NOTE: The SYST:PRES command string will reset the PCS Interface but will maintain the current

temperature compensation. Do not use the *RST command during this initialization since it will reset the temperature compensation. Compensations will be done at the first time requested following the *RST command.

Set Up the UUT ports

NOTE: When the RF:PATH command is executed, the TX and RX attenuators are automatically

The internal signal path switches of the PCS Interface can be controlled to route the Test Set’s connections to or from the UUT.

1. Use the following command string for RX testing at the PCS Interface’s RF OUT only port and for TX testing at the PCS Interface’s RF IN/OUT port.

To the PCS Interface> RF:PATH 1 (page 107)

2. Use the following command string for both RX and TX testing at the PCS Interface’s RF IN/OUT port.

To the PCS Interface> RF:PATH 2 (page 107)

set to their maximum values of 40 dB and 70 dB, respectively.

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

Set the Test Frequencies and Levels (for RX or TX testing)

Set the generator frequency for receiver testing

The PCS Interface takes the source signal from the Test Set’s DUPLEX OUT port and routes the signal to the UUT port RF OUT only (or RF IN/OUT). Based on the frequency requested at the UUT port, the PCS Interface automatically determines if the upconversion or bypass path is used.

1. Use the following command string to indicate the desired testing frequency at the UUT port and to query the PCS Interface for the corresponding frequency needed at the its FROM DUPLEX OUT port.

To the PCS Interface> RX:TSET:FREQ? <desired frequency> (page 111)

2. Define a local constant for the frequency obtained in step 1.

For example: Duplex_freq

3. Use the following command string to set the Test Set’s DUPLEX OUT frequency.

To the Test Set> RFG:FREQ <Duplex_freq>

NOTE: Table 14 on page 138 describes the frequency conversions automatically made by the PCS

Interface.

Set the generator level for receiver testing

The PCS Interface is designed to optimize the level accuracy of the generator’s output. It automatically computes the optimum signal level to set the Test Set’s DUPLEX OUT port to in order to obtain the desired signal level at the PCS Interface’s UUT port.

NOTE: Refer to the specifications for the output levels available from both the RF OUT only and

RF IN/OUT ports.

1. Use the following command string to indicate the signal level desired at the PCS Interface’s UUT port and to query the PCS Interface for the corresponding signal level needed at its FROM DUPLEX OUT port.

To the PCS Interface> RX:TSET:LEV? <desired level> (page 112)

2. Define a local constant for the signal level obtained in step 1.

For example: Duplex_lev

3. Use the following command string to set the Test Set’s DUPLEX OUT level.

To the Test Set> RFG:AMPL <Duplex_lev>

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

NOTE: Since the level required at the PCS Interface’s FROM DUPLEX OUT port is computed as

a function of frequency, the generator level should be set after the generator frequency is set.

Set the analyzer frequency for transmitter testing

The PCS Interface takes the transmitter output signals from the UUT connected to its RF IN/OUT port and routes the signal to the Test Set’s ANT IN port. Based on the frequency requested at the PCS Interface’s UUT port, the PCS Interface automatically determines if the downconversion path or bypass path is used.

1. Use the following command string to set the PCS Interface’s down-converter for the expected transmitter frequency at the PCS Interface’s UUT port and to query the PCS Interface for the corresponding frequency to be expected at the Test Set’s ANT IN port.

To the PCS Interface> TX:TSET:FREQ? <test frequency> (page 120)

2. Define a local constant for the frequency obtained in step 1.

For example: Ant_freq

3. Use the following command string to tune the Test Set’s RF analyzer frequency to the UUT’s transmitter frequency.

To the Test Set> RFAN:FREQ <Ant_freq>

NOTE: Table 14 on page 138 in the attached appendix describes the conversions for frequency

automatically made by the PCS Interface.

Set the analyzer attenuation level if you are establishing an active link between the Test Set and the UUT using over-the-air protocol.

1. If an active link using over-the-air protocol is going to be established between the Test

Set and the UUT, the attenuator may need to be set to a minimum value. This will allow the Test Set to receive the UUT’s transmitted signal at a high enough level to establish the link.

Use the following command string to set the attenuator of the PCS Interface’s analyzer path to 0 dB.

To the PCS Interface> TX:OUTP:ATT 0 dB (page 118)

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

Perform the Temperature Compensations

Two temperature compensations are available. The dc offset compensation is required to achieve the most accurate transmitter power measurements. The generator level compensation provides the best generator level accuracy for receiver testing. See "Temperature Compensations" on page 73 for a more detailed description of these two compensations.

Temperature compensation for transmitter testing.

If the power detector in the PCS Interface is to be used for making a transmitter power measurement, both the dc offset temperature compensation and the power detector compensation should be checked and performed if necessary.

1. Use the following command to perform the dc offset temperature compensation.

To PCS Interface> COMP:PDET:DCOF:EXEC (page 100)

Temperature compensation for receiver testing

Since the Test System’s source is used for receiver testing, the generator level temperature compensation should be checked and performed, if necessary, prior to making a receiver measurement.

1. Check and see if the generator level temperature compensation is necessary.

a. Use the following command to query the PCS Interface for whether generator level

compensation is necessary.

To PCS Interface> COMP:TEMP:REQ:STAT? (page 105)

b. Store the result as a local constant.

For example: Status

2. If compensation is necessary (for example, Status=1), then set up the Test System for the temperature compensation.

a. Use the following command string to indicate the frequency band desired for

receiver testing and to query the PCS Interface for the resulting frequency needed at its FROM DUPLEX OUT port.

To the PCS Interface> COMP:TEMP:FREQ? <band or frequency> (page 102)

b. Define a local constant for the Test Set’s DUPLEX OUT frequency obtained in

step a.

For example: Duplex_freq

c. Use the following command string to set the Test Set’s generator frequency.

To the Test Set> RFG:FREQ <Duplex_freq>

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

d. Use the following command string to query the PCS Interface for the signal level

required at its FROM DUPLEX OUT port.

To the PCS Interface> COMP:TEMP:LEV? (page 103)

e. Define a local constant for the level obtained in step d.

For example: Duplex_lev

f. Use the following command string to set the Test Set’s generator level.

To the Test Set> RFG:AMPL <Duplex_lev>

3. Use the following command string to perform the generator level temperature compensation.

To the PCS Interface> COMP:TEMP:EXEC? (page 101)

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

Activate the

Activate the RX and/or TX functions of the UUT.

UUT

NOTE: You need to determine the steps required here. You can either control the UUT with the

Test Set’s call processing capabilities or some other means of direct control.

Set the TX Attenuator Level (for TX testing)

NOTE: Do not have a signal generator level greater than −50 dBm at the RF IN/OUT port when

NOTE: This is a one time setting and does not place the PCS Interface in an auto-ranging mode. If

The PCS Interface is designed to optimize the level of the signal passed to the Test Set’s RF analyzer. With a single GPIB command, the PCS Interface will automatically adjust its analyzer path attenuation. This should be performed after the active signal is connected to the RF IN/OUT port.

1. Use the following command string to set the PCS Interface’s analyzer path attenuation to obtain the optimum signal level into the Test Set’s ANT IN port and to query for completion.

To the PCS Interface> TX:OUTP:LEV:ADJ; *OPC? (page 119)

adjusting the attenuator level. This may require that you reduce the level of the signal generator.

the TX signal level changes, the attenuation setting command should be sent again.

The optimum level out of the PCS Interface’s TO ANT IN port can be modified using the TX:OUTP:LEV command, and the TX:OUTP:RFAN:PATH:IL? command can return the path loss from the RF IN/OUT port to the TO ANT IN port be used to develop custom attenuator setting procedures in the controlling software which can be used if a known signal level will be connected to the RF IN/OUT port.

Since the attenuator setting is a function of frequency, the analyzer’s attenuator should be adjusted after the analyzer’s frequency is set.

. These two commands can

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

Set Up the Power Detector (for TX power measurements)

NOTE: The subscriber unit UUT must be in an active link with the Test Set when using the frame

Before making a power measurement, the triggering type and data collection conditions must be set and the

TX:INP:FREQ must be set so the correct

compensation factors are applied to the measurement. See table 9 on page 88 for application examples of triggering types and data collection.

1. Select the trigger type

• Immediate trigger - Measurements are started when the instrument is ready after being instructed to make a power measurement. This type should be used for any continuous signal measurement.

• Amplitude trigger - Measurements start when the PCS Interface detects that the positive edge of the pulsed signal crosses the trigger threshold. This trigger mode is useful for signal levels above −5 dBm (0.316 mW).

• External trigger - The frame clock output from the TDMA Cellular Adapter provides external trigger control.

clock for external triggering.

Use the following command string to select the trigger type.

To the PCS Interface> TX:INP:POW:TRIG <trigger type> (page 118)

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

2. Select the data collection conditions

In addition to the trigger features, a subset of the collected data can be selected for use in power computations using IGNORE, LENGTH, and AVERAGE values.

NOTE: The IGNORE value is valid only for the Internal amplitude trigger or the External trigger.

Trigger Event

(for External Trigger)

Trigger

Threshold

(for Amplitude Trigger)

IGNORE

a. Use the following command string to define the number of measurement samples

b. Use the following command string to define the number of samples to collect

c. Use the following command string to define the number of bursts (ranging from 1

LENGTH

(ranging from 3 to 3200) (12.5 µs/sample) to ignore after the trigger conditions have been satisfied.

To the PCS Interface> TX:INP:POW:PDET:SAMP:IGN <desired number> (page 117)

(ranging from 1 to 4800) in the measurement after trigger conditions and IGNORE samples have been satisfied.

To the PCS Interface> TX:INP:POW:PDET:SAMP:LENG <desired number> (page 117)

to 10) to include in the power measurement. IGNORE and LENGTH conditions will be applied to each burst.

To the PCS Interface> TX:INP:POW:PDET:SAMP:AVER <desired number> (page 116)

AVERAGE

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

NOTE: If the Immediate trigger is used, up to 48000 samples can be collected by the combination

of the LENGTH and AVERAGE values.

Table 9 Example power measurement set ups for typical applications

TX:INP:POW:PDET:SAMP TX:INP:POW:TRIG

:AVER

(AVERAGE

TRIGGERING

)

1 IMM (Immediate)

EXT (External)

AMPTD (Amplitude)

TYPE

CDMA Base Station

CDMA Subscriber Unit

TDMA Base Station

TDMA

Application

Subscriber Unit

TDMA Subscriber Unit

:IGN

(IGNORE)

:LENG

(LENGTH)

— 4800 4 IMM (Immediate)

—

See footnote

See

footnote

17 461 See footnote

461 See footnote

(Signals > −5 dBm)

1. The total number of points used in the power measurement determines the accuracy achieved. The measurement accuracy is:

180

----------

± 5%

[] This applies @ 23 ± 10 degrees C±

µW

180

± 10%

----------

[] This applies @ 0 to 55 degrees C±

µW

Where: N = total number of points used, or LENGTH*AVERAGE from the table above

2. The PCS Interface’s power detector sample rate is 80 kHz. For the US TDMA symbol rate of

24.3 kHz, this implies 3.29 samples/symbol. The values for IGNORE and LENGTH provide power measurements compliant with the IS-137 specification of at least 140 symbols between symbols 6 and 162 in the burst.

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

3. Since the frame trigger signal from the Cellular Adapter is used for the external trigger, and the subscriber unit is locked to the Test System’s frame clock, transmitter power measurements can be made on any of the 6 TDMA slots by adjusting the IGNORE value.

IGNORE = (S*533) + 2001, for S = slot number = 1, 2 IGNORE = (S*533) − 1197, for S = slot number = 3, 4, 5, 6

Chapter 3, Programming the PCS Interface using GPIB Control

Set Up and Measure

Make the Measurement

NOTE: The power detector temperature compensation is automatically performed when the

NOTE: Since the Test Set does not automatically correct for the frequency and amplitude changes

Transmitter power for using the PCS Interface is available in addition to other measurements from the Test Set.

• Transmitter Power measurements

Use the following command string to query the power measurement from the PCS Interface.

To the PCS Interface> TX:INP:POW? (page 115)

TX:INP:POW? command string is used to make a power measurement.

When performing the power measurement, the RF generator level should be set to less than

−50 dBm if the RF IN/OUT port is used, or set to less than −30 dBm if the RF OUT only port is used.

• Other Test Set measurements

Refer to the Test Set’s programming guide for making other measurements.

due to the conversions in the PCS Interface, absolute frequency (using the Auto Tune mode) and absolute amplitude measurements will not be accurate. For example:

Absolute TX frequency = (1050 or 1060 MHz conversion) + Test Set’s frequency reading

PIB Commands

What’s included in this chapter:

• Introduction

• The Syntax of Program Messages

• Reference Information for each GPIB command

• GPIB Command Summary

GPIB Commands

Chapter 4, GPIB Commands

Introduction

The PCS Interface is controlled only by GPIB commands from the Test Set’s internal IBASIC controller or the user-supplied external controller.

The GPIB commands for the PCS Interface comprise common commands and subsystem commands.

NOTE: The information in this chapter does not apply when an Agilent 8924C is controlling the

PCS Interface over the serial port.

Common Commands

An asterisk (*) is always placed in front of a common command. These common commands conform to IEEE 488.2.

Subsystem Commands

Subsystem commands are hierarchies composed of multiple commands connected by colons. The hierarchies are also called “command trees.”

Subsystem Command Trees

The command at the base of a subsystem command tree is called the root command, or simply the root. (This is similar to the terminology used for the

directory path of DOS files.) To indicate the command at the beginning of the tree, the path from the root must be specified. Immediately after the power is turned on or a preset is carried out, the root is specified as the current path. The following method can be used to change this path’s specification.

Program Message Terminator A program message terminator such as

<new line> returns the current path to the root.

Colon (:) Inserting a colon between two commands causes the current

path to branch one level down. If a colon is placed in front of a command it indicates that the command is the root command.

Semicolon (;) A semicolon indicates the separation of two groups of com-

mands. A semicolon does not change the specification of the current path.

An example of how colons and semicolons are used within a command tree is shown in figure 27 on page 93.

Chapter 4, GPIB Commands

Introduction

Common commands such as *RST may not be used in a subsystem. Common commands function regardless of the current specified path.

Returns the current path to root.

Causes the current path to branch one level down.

Does not change the specification of the current path.

Figure 27 The Correct Use of Colons and Semicolons

Command Abbreviations

Abbreviations can be used for some commands. This manual does not use abbreviations for commands when describing them. However, the letters that are used in the abbreviation of the command appear in uppercase, and the letters that must be omitted to form the abbreviation appear in lowercase.

For example, this manual indicates that the abbreviation of the command

:SYSTEM is :SYST by showing it as :SYSTem. (Abbreviations such as :SYSTE

are not valid.)

Chapter 4, GPIB Commands

The Syntax of Program Messages

This section details the format and parameters of program messages.

Program messages are sent by the computer to the measuring device. They are comprise one or more commands, the symbols that separate each command, and a message termination symbol (terminator).

Uppercase and Lowercase Letters

No distinction is made between uppercase and lowercase letters in program messages.

Program Message Terminator

The program message terminators are <newline>, <^END>, and

<newline><^END>. <^END> is used to indicate the end of a program message. <^END> means that an EOI (End Of Identify) was transmitted, signaling that data

transmission through an GPIB interface has been completed.

For example, the to the end of data transmissions. For IBM PC computers, the specification for the terminator that is transmitted can be changed by changing the environment settings of the system.

Multi-messages

More than one command can be included in a message. When this is done a semicolon is used to separate the commands.

*RST;*IDN?

HP BASIC OUTPUT statement automatically adds an <^END>

The Syntax of Query Messages and Response Messages

Commands other than those described in the command reference as “No Query” can be used as Query commands. To send a Query command as a message, add a

? to the end of the character string as shown in the example below.

*IDN?

Commas and semicolons are used to separate data in response messages. Commas are used to separate multiple return values in response to a Query command. Semicolons are used to separate the responses to multiple Query commands transmitted as one message. As an example, the response to the message

:QUERY1?;QUERY2? is shown below.

<newline><^END> is transmitted at the end of the message to indicate the end of

the message.

Chapter 4, GPIB Commands

The Syntax of Program Messages

Chapter 4, GPIB Commands

The Syntax of Program Messages

Parameters

One <space> has to be inserted between the command character string of the subsystem and the first parameter.

When more than one parameter has to be added to a command, commas are used to separate the parameters.

Types of Parameters

Command parameters have many formats. Previously defined fixed formats that correspond to each command are used in the replies. The formats that may be used for each command are noted in the command reference.

• The use of one of the following numeric formats is indicated by <numeric>.

no decimal point

100

100.

with decimal point

, +235 with a minus or plus sign

−1.23

4.56eëû

3 exponential expression with a space after the e

−7.89E−01 .5

only to the right of the decimal point

exponential expression with an E or an e

There is a limit to the numeric formats that can be used when using a program to specify the settings of the PCS Interface. A “rounding-off” operation is automatically carried out if a specified parameter exceeds this limit. <numeric> data that is in response to a Query command is always in an <NR1> (integer) or an <NR3> (decimal point) format.

• Suffixes

When a suffix has to be used with a command, multiplier suffixes (such as K for kilo) and unit suffixes can be used. (If a multiplier suffix is used, it must be accompanied by a unit suffix, such as HZ.)

Frequency: HZ (Hz; default setting), KHZ (kHz), MAHZ or MHZ (MHz),

GHZ (GHz)

Power: DBM (dBm; default setting), W (W) Temperature: DEG (°C; default setting)

Suffixes may be omitted. If they are, the default suffixes will be used.

Chapter 4, GPIB Commands

The Syntax of Program Messages

Conventions The following conventions and definitions are used in this chapter to describe

GPIB operation.

Þ RX[:RFG1]:TSET:LEVel? ëû <numeric>[DBM]

(1)

(2) Þ Returns the level required at the FROM DUPLEX OUT port, when

the level of the wanted signal at the RF IN/OUT or RF OUT only is specified in

Þ <numeric>: −130 to −10 dBm for RF:PATH 1

(3)

Þ •Response to the Query

(4)

{numeric (dBm)} <new line><^END>

<numeric>. (Query only)

−130 to −20 dBm for RF:PATH 2

(1) Command name and required parameter.

When a parameter is required, there must be a space between it and a code. (ëû indicates a space.)

When several items are enclosed by {} brackets, only one of the elements may be selected. For example, {OFF|ON|0|1} means OFF, ON, 0, or 1. Characters enclosed in the [] brackets are optional and may be omitted.

(2) Description

(3) Parameter description

(4) Query response

Chapter 4, GPIB Commands

Common Commands

*IDN?

Returns the ID of the PCS Interface. (Query only)

• Response to the Query

HEWLETT-PACKARD,HP83236B,xxxxxxxxxx,REV.yy.yy <newline><^END>

where, xxxxxxxxxx is a serial number and yy.yy is a firmware version.

*OPT?

Returns the options that are installed. (Query only)

NO OPTION:

The frequency range is limited. See "Change 1" on page 145 for details.

WIDE BAND: All of the frequency range documented in this manual can

be used.

• Response to the Query

{NO OPTION|WIDE BAND} <newline><^END>

*RST

Returns all of the settings of the PCS Interface to their default settings. (No Query)

Table 10 SYST:PRES Command Settings

Command Setting

COMP:PDET:DCOF:REQ:RES 1

COMP:PDET:TEMP:REQ:RES 1

COMP:TEMP:REQ:RES 1

RF:PATH 0

RX:OUTP:ATT 70 dB

RX:OUTP:FREQ 1930 MHz RX:OUTP:LEV −130 dBm

TX:INP:FREQ 1850 MHz

TX:INP:POW:PDET:SAMP:AVER 1 (for the Immediate Trigger)

Chapter 4, GPIB Commands

Common Commands

5 (for the Amplitude or External Trigger)

TX:INP:POW:PDET:SAMP:IGN

TX:INP:POW:PDET:SAMP:LENG 4800 (for the Immediate Trigger)

TX:INP:POW:TRIG IMM

TX:INP:POW:UNIT dBm

TX:OUTP:ATT 40 dB TX:OUTP:LEV −9 dBm

461 (for the Amplitude or External Trigger)

Chapter 4, GPIB Commands

COMPensation Subsystem

COMPensation:PDET:DCOFfset:EXECute

This command measures the dc offset values of the power detector. The dc offset value is used to calculate the measurement value from the actual output value of the power detector. This is the equivalent of zeroing the power meter.

NOTE: The dc offset values are also updated at power-up of the PCS Interface or after executing

the *RST command or the COMP:TEMP:EXEC? command.

The query form of this command is used to measure the current temperature value and compare it to the value stored the last time dc offset values were measured. When the difference is greater than or equal to the value set by the

COMP:PDET:DCOF:REQ:RES command, the PCS Interface stores the current

value, and returns 1 (TRUE). If the difference is less than the value set by the

COMP:PDET:DCOF:REQ:RES command, the PCS Interface does nothing and

only returns 0 (FALSE).

• Response to the Query

{0|1} <new line><^END>

0: The PCS Interface did nothing, because the temperature change is

less than the value defined by the COMP:PDET:DCOF:REQ:RES command.

1: The PCS Interface measures the dc offset of the power detector and

stores the measured values into the non-volatile memory, because the temperature change is larger than the value defined by the COMP:PDET:DCOF:REQ:RES command.

100

Agilent 83236B Operator Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

General Information

Introduction

Incoming Inspection

Furnished Accessories

Power Cable

Options

Front Panel

Rear Panel

Other Information

Installation

Introduction

Where to go next

Introduction

Overview of Programming Issues

PCS Interface Programming Guide

Test Procedure Flow

Initialize the System

Set Up and Measure

GPIB Commands

Introduction

The Syntax of Program Messages

Common Commands

COMPensation Subsystem