Hp 8642a Use and care manual

HP 8642AJB

SYNTHESIZED

SIGNAL

GENERATOR

OPERATION AND CALIBRATION MANUAL

(Including Options 001, 002 and 003)

SERIAL NUMBERS

This

I1lnllual applies directly

to

instruments

with

serinl

numbers

prefixed:

2427A

to

2734A

J'L'v.IOSEPS7

For

additional

important

information

about

serial

numbers.

refer

to

"INSTRUMENTS

COVERED

BY

THIS

MANUAL"

in

Section

I.

@HEWLETT-PACKARD

COMPANY

1985

EAST

2400~

MISSION

AVENUE,

TAF

C-34, SPOKANE,

WASHINGTON,

U.S.A. 99220

Operation/Calibration

Manual

Part No. 08642-90224

Other

Documents

Available:

Microfiche

Operation/Calibration

Manual

Part

Number

(Volume

1) 08642-90225

Service

Manual

Part

Number

(Volume

2,

3,

4)

08642-90226

Microfiche

Service

Manual

ParI No. 08642-90227

Printed

in

the

USA:

JANUARY

1985

r/;iJ8

HEWLETT

t.!1.:!.tI

PACKARD

VOLUME 1

DIGITALY REMASTERED

OUT OF PRINT

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CERTIFICATION

Hewlett-Packard Company certifies that this product

met

its published specifications

at

the time

of

shipment

from the factory. Hewlett-Packard further certifies that its calibration measurements are traceable to the United

States National Bureau of Standards,

to

the extent allowed by the Bureau's calibration facility, and

to

the

calibration facilities

of

other International Standards Organization members.

WARRANTY

This

Hewlett-Packard

instrument

product

is

warranted against defects

in

material

and

workmanship for a period

of

one year from date

of

shipment. During

the

warranty period, Hewlett-Packard Company 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

HP.

Buyer shall

prepay shipping charges

to

HP

and

HP

shall pay shipping charges

to

return

the

product to Buyer. However,

Buyer

shall

pay

all shipping charges, duties,

and

taxes for products

returned

to

HP

from

another

country.

HP

warrants

that

its

software

and

firmware designated by

HP

for use with

an

instrument

will execute

its

programming instructions when properly installed on

that

instrument.

HP

does

not

warrant

that

the

operation

of

the

instrument, or software, or firmware will be

uninterrupted

or error free.

LIMITATION OF WARRANTY

The

foregoing warranty shall

not

apply

to

defects resulting from improper or inadequate maintenance by Buyer,

Buyer-suppliedsoftware or interfacing, unauthorizedmodification

or

misuse, operation outside

of

the

environmental

specifications for

the

product, or improper site preparation

or

maintenance.

NO

OTHER

WARRANTY

IS

EXPRESSED

OR

IMPLIED.

HP

SPECIFICALLY DISCLAIMS

THE

IMPLIED

WARRANTIES

OF

MERCHANTABILITY

AND

FITNESS

FOR

A

PARTICULAR

PURPOSE.

EXCLUSIVE REMEDIES

THE

REMEDIES

PROVIDED

HEREIN

ARE

BUYER'S

SOLE

AND

EXCLUSIVE

REMEDIES.

HP

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 Hewlett-Packard

products.

For

any

assistance, contact your nearest Hewlett-Packard Sales and Service Office. Addresses are provided

at

the back

of

this manual.

Model

8642A/B

Safety

Considerations

SAFETY CONSIDERATIONS

GENERAL

This

product

and

must

be re-

viewed for familiarization with safety markings

and

instructions

before operation.

This

product

is a

Safety

Class I

instrument

(provided

with

a

protective

earth

terminal).

BEFORE APPLYING POWER

Verify

that

the

product

is

set

to

match

the

available

line voltage

and

the

correct fuse is installed.

SAFETY EARTH GROUND

An

un

interruptible

safety

earth

ground

must

be

pro-

vided from

the

main

power source

to

the

product

input

wiring terminals, power cord,

or

supplied power cord

set.

SAFETY SYMBOLS

Ij\

Instruction

ma~ual

sy~bol:

the

product

will

~

be

marked

wIth

thls

symbol

when

it

is

necessary for

the

user

to

refer to

the

instruction

manual

(refer

to

Table

of

Contents).

~

Indicates

hazardous voltages.

-::b-

Indicates

earth

(ground) terminal.

I

WARNING

I

The

WARNING

sign

denotes

a

hazard.

It

calls

attention

to

a

procedure, practice,

or

the

like, which,

if

not

correctly

performed

or

adhered

to, could result

in

personal

inju-

ry. Do

not

proceed

beyond

a

WARNING

sign

until

the

indicated

conditions

are fully

understood

and

met.

The

CAUTION

sign denotes a haz-

ard.

It

calls

attention

to

an

operating

procedure, practice,

or

the

like, which,

if

not

correctly

performed

or

adhered

to, could result

in

dam-

age

to

or

destruction

of

part

or

all

of

the

product. Do

not

proceed

beyond

a

CAUTION

sign

until

the

indi-

cated

conditions

are

fully

understood

and

met.

WARNING

I

Any

interruption

of

the protective (ground·

ing) conductor (inside or outside the

instru·

ment)

or disconnecting the protective

earth

terminal will cause a potential shock hazard

that

could result in personal injury. (Ground-

ing one conductor of a two conductor outlet

is

not

sufficient protection).

Whenever

it

is likely

that

the protection has

been impaired, the

instrument

must

be

made

inoperative and

be

secured against any

unin-

tended operation.

If

this

instrument

is

to

be

energized via an

autotransformer (for voltage reduction) make

sure the common terminal is connected

to

the

earth terminal

of

the power source.

Servicing instructions are for use by seruice-

trained personnel only. To avoid dangerous

electric shock,

do

not

perform

any

serVicmg

unless qualified

to

do

so.

Adjustments

described in the manual are per-

formed

with

power supplied

to

the

instrument

while protective covers are removed. Energy

auailable at

many

points

may,

if

contacted, re-

sult in personal injury.

Capacitors inside the

instrument

may

still

be

charged even

if

the

instrument

has been dis-

connected from its source

of

supply.

For continued protection against fire hazard,

replace the line (users) only

with

250V

fuse(s)

of

the same current rating and type (for exam-

ple, normal blow, time delay, etc.). Do

not

use

repaired

fuses

or

short

circuited

{useholders.

iii

Model

8642A/B

Contents

TABLE

OF

CONTENTS

Section I

GENERAL INFORMATION

Introduction

to

the

Operating

and

Service

Manual

1·1

Volume I, Operating

Manual

..

. . . . . . . . . 1·1

Volumes

II

through

IV, Service

Manual

....

1·1

Where

to

Find

Instrument

Specifications

......

1·1

Where to

Find

Safety

Considerations

. . 1·2

Hewlett·Packard

Interface

Bus

(HP·IB)

Enables

Remote Control

of

the

Instrument

1·2

Selecting

the

HP·IB

Address.

___ . _1·2

HP·IB

Capabilities

__

........

_. _ _. _

....

_

...

1·2

An

Explanation

of

the

On-Site

Service

Strategy

....

1·3

Hardware

Features

........

__

. . . . .

....

1·3

Built·In

Test

Features.

. . . . . .

..

_. . 1·3

Firmware

Features

..

.....

..

Quick Reference

Manual

Information

........

.

How

the

Operating

Fundamentals

Can

Help You

Learn

to

Operate

the

Instrument

Accessories Supplied

With

the

8642A/B

· 1·3

· . 1·3

· 1·3

· 1·4

_1·4

Options Available

With

the

Instrument

Electrical

Options

..

_

....

1·4

Mechanical

Options

......

. · . 1·4

Documentation

Options

.

..

..'

. .

..

·

..

1·5

Equipment

That

Can

Be

Ordered for

the

Signal

Generator

......

....

. . .

..

. · 1·5

On·Site

Service

Kits

.......

.'

..

. · . 1·5

Bench

Service

Kit

.....

" ." · . 1·5

Signal

Generator

Test

System,

HP

8952S · 1·5

50

Ohm

to

75

Ohm

Adapter

.......

. ·

..

1·5

Fiberglass

Transit

Case

..........

. ·

..

1·5

Rack·Slide

Kit

..

..........

. ·

..

1·5

How to Use

the

Recommended

Test

Equipment

Table..

..

....

..

1·5

Instruments

Covered

By

This

Manual

............

_

1·6

Introduction

.

Section

II

INSTALLATION

Initial

Inspection

.....

Preparation

for

Use.

Power

Requirements

Power

Cables.

_.

HP-IB

Address Selection

Interconnections

...

.

Mating

Connectors

.....

.

Operating

Environment

Rack

Mounting

Storage

and

Shipment

Environment

Packaging

2·1

· . _2·1

2·1

· . 2·1

· . 2·3

· . 2-5

_2-5

.2·5

...

_2·5

2-5

2·6

2-6

· 2·6

Section III

OPERATION

Introduction

to

Section

III

.

Operating

Information

.....

Hp·IB

Table of

Contents

..

HP·IB

Remote

Operation

..

Hp·IB

Address

.....

.

HP-IB

Capabilities

....

.

.........

.

3·1

3-3

. 3-5

_.

3·7

3·8

·

...

3-9

Data

Input

.

Data

Output

Clear

...

.

....................

3·11

...........

3·15

.

...........

3·24

Remote, Local

..

. . .

.. ..

.

................

3·25

Local Lockout,

Set

Local

..

_

...

3-26

Service Request . . . . . . . . . . . .

..

...

. _

......

3·27

Status

Byte . _. . . . . _. . . . . _ 3-29

Additional

HP·IB

Information

.......

3·31

HP·IB

Codes

Summary

_.

_. 3·32

Hp·IB

Keys

'.

.

....

3·34

HP-IB

....

.

.,

3-35

RF

Frequency

RF

Frequency

Contents

. _

....

_

..

.

RF

Frequency _

...

_. _. _

....

_

..

.

Relative

RF

Frequency

. " _

....

.

RF

Frequency Sweep . _.

Amplitude

· _

..

3·37

· _. 3·39

·

...

3·45

·

__

3·49

Amplitude

Contents

_.......

. _. _

....

3·67

Amplitude.

_

..

.

............

_

.......

3·69

Relative Amplitude

____

. 3·77

Amplitude Sweep

................

___

.........

3·83

Modulation

Contents

Modulation,

AM

Modulation,

FM

..

_.

Modulation,

<PM

Modulation, Pulse .

Modulation Oscillator

Setting

Modifications

Setting

Modifications

Contents

.

Instrument

Preset,

Partial

Preset

Knob

_

...

_

........

_.

.

......

__

.

Step,

Increment

Set

...

_. _

..

Entry

Off

__

..

_.

Recall Registers

Contents

_.

Save/Recall _. _

...

_.

Sequence . _.

Special

Functions

Special

Functions

Contents

Special

Functions

Messages

Contents

Operating

Messages

........

_

Appendixes

· _

..

3·95

· _

..

3·97

·

..

3·105

·

..

3·119

· 3·127

· . _3·131

___

3·135

3·137

·

__

3·141

3·149

· 3·153

_3·155

3·157

· 3·161

3-165

.....

3·167

.....

3-177

3·179

Appendix

A:

Glossary . 3·199

Appendix B:

Writing

Messages to

the

Display

..

3-201

Appendix

C:

Amplitude

Units

Conversion

....

__

3·205

Appendix D: Display

Annunciators

and

Abbreviations

..

_

....

"

..........

.

Appendix

E:

Individual

Instrument

Identification

. .

__

3·207

3-208.1

v

Contents

SECTION 4

PERFORMANCE TESTS

]

ntroduction

..........

.

Recommended

Test

Equipment

Test

Record

..........

.

Abbreviated

Performance

Testing

Level

Accuracy

and

Flatness

Tests.

Harmonics

Tests

.....

Pulse

On/Off

Ratio

Test.

Residuals Tests

.....

.

AM, FM,

and

<PM

Tests.

Extended

FM Distortion Test

Internal

Modulation

Oscillator

Tests.

SWR

.............

.

Spuriolls

Test

........

.

Third

Order

Intermodulation

SSB Phase Noise Test

....

SSB

Phase

Noise

Test

(Optional)

Extended

Pulse Tests

.....

.

Optional

Residual FM Test

..

.

Internal

Time

Base Aging Rate Test

VI

Model 8642A/B

CONTENTS

4-3

4-4

4-6

·

4-12

.4-14

.4-16

·

4-18

.4-25

·

4-27

.4-30

.4-35

·

4-37

.4-39

·

4-42

.4-46

.4-49

.4-51

SECTION 5

ADJUSTMENTS

Adjustments

..

Auto-Adjust Routines

Description

...

How

All

Auto-Adjust

Procedures

Begin

Correction

Dnta Special FUIIctions

..

Identifying

the

Contents

of

A20

Identifying

the

Contents

of

A3

Interpreting Cal

Data

Stats

...

5-2

5-3

5-5

5-7

5-8

Model

8642A/B

General

Information

SECTION

I

GENERAL

INFORMA

TION

1-1.

INTRODUCTION

TO

THE

OPERATING

AND

SERVICE

MANUAL

This

manual

contains

information

required

for

a

qualified

person

to

install,

operate,

test, adjust,

and

service

the

Hewlett

-

Packard

Model 86

42A/B

Signal

Generator.

The

HP

Model

8642A/B

will

generally

be

referred

to as

the

Signal

Generator

throughout

the

manual.

The

Operating

and

Service

Manual

is

comprised

of

four

volumes as described below.

Volume

I,

Operating

Manual

QIJerating

Fundamentals.

This

booklet provides

operating

exercises

to

enable

you

to

easily

operate

the

instrument's

basic

functions.

Section

..

.J>-GeneraLInformation.

General

Information

covers

instrument

specifications,

options,

equipment

available,

recommended

test

equipment,

and

an

explanation

of

the

On-Site

Service

Strategy

for

the

HP

8642A/B.

Section

11,

Installation.

Installation

covers

initial

inspection,

preparation

for

use,

and

storage

and

shipment.

Section

III,

Operation.

Operation

provides

HP-IB

operating

information

(including

HP-IB

address selection)

and

detailed

operating

information

for

either

the

beginning

or

experienced

user. A glossary

and

index

are

provided

at

the

end

of

Section III.

Volumes

II

Through

IV,

Service

Manual

Section~~Performanc~Tests.

Performance

Tests enable you to

check

the

performance

of

the

instrument

against

the

specifica

tions

listed

in

Table

I-I.

Section

V,

Adjustments.

The

adjustment

procedures

that

are

normally

found

in

this

section

are

now

located

in

Section

VIII

with

the

a Dpropriate

troubleshooting

procedures

and

schematics.

Section

VI,

Replaceable

Parts,

Replaceable

Parts

lists

all

replaceable

parts

and

assemblies.

Section-..Yl1lP..§1rument.-Shanges.

Instrument

changes

provide

backdating

information,

and

retrofitting

and

modification

information.

Section VIII, Service. Service provides

the

information

required

to

adjust

and

repair

the

illStrllment.

1-2.

WHERE

TO

FIND

JNSTR1 1l\1ENT

SPECIFICATa)~')

In~tJ

ument

specifications

are

listed in Table

1-1

(1'''

ze

1-7). These

specifications

are

the

performallce

standards

or

limits

agalllst

which

the

J:.

,,'.IIllent

can

be

tested

Supplemental

characteristics

are

listed in Ta ble

1-

2 (page

1-13).

Sllpplement,ll

characteristics

are

Iwt

guaranteed

specdit.:ations but are typical

characteristics

included

as additil'llal illfonnatil)IL

I-I

General

Information

Model

8642A/B

1-2

1-3.

WHERE

TO

FIND

SAFETY

CONSlDERATIONS

This

prod\lct

is

a

Safety

Class I

instrument;

that

is,

one

provided

with

a

protective

earth

terminal.

Before

operating

or

servicing

the

Signal

Generator,

service

personnel

should

familiarize

themselves

with

the

safety

markings

on

the

Signal

Generator

and

the

safety

instructions.

Safety

information

pertinent

to

the

task

at

hand

(that

is,

information

regarding

installing,

operating,

performance

testing,

adjusting,

or

servicing

the

HP

8642A/B)

is

found

throughout

this

manual.

Refer

to

the

Safety

Considerations

pages

found

at

the

beginning

of

Volume

I

for

a

summary

of

that

information

1-4.

HEWLETT-PACKARD

INTERFACE

BUS

(HP-IB)

ENABLES

REMOTE

CONTROL

OF

THE

INSTRUMENT

...

The

HP

8642A/B

Signal

Generator

has a

Hewlett-Packard

Interface

Bus (HP-IB)

interface

and

can

be used

with

an

HP-IB

compatible

controller

for

test

system

applications.

The

Signal

Generator

is

fully

programmable

via

the

HP

Interface

Bus

HP-IB

is

Hewlett-Packard's

implementation

of

IEEE

Standard

488

and

the

identical

ANSI

Standard

MC 1.1.

(Refer

to

the

HP-JB

portion

of Section 1II

for

more

complete

details.)

Selecting

the

HP-IB

Address

The

Signal

Generator's

HP-IB

address

is

set

to

19

at llle

factory

in

both

internal

memory

and

an

in

ternal

switch

loea

ted

inside

the

instrument.

The

decimal

equi

valent

of

the

5- bit address code

can

be

displayed

on

and

changed

from

the

front

panel.

Refer

to

HP-Ill

Address

in

the

HP-IB

portion

of

Section

III

for

information

regarding

changing

the

HP-IB

address.

lIP-IB

Capabilities

This

Signal

Generator's

HP-IB

capabilities

are

defined

by

the

following

list

of

interface

functions.

For

more

information,

refer

to

page

3-9.

Source

Handshake

Acceptor

Handshake

Talker

Extended

Talker

Listener

Extended

Listener

Service

Request

Remote

Local

Parallel

Poll

Device

Clear

Device

Trigger

Controller

Driver

Electronics

SIll

AHI

T6

TEO

L3

LEO

SRI

RLI

PPO

DCI

DTO

Cl

C2

C3

C28

E2

(Complete

capability)

(Complete

capability)

(No

talk

only

mode)

(No

capability)

(Complete

capability

including

Listen

Only)

(No

capability)

(Complete

capability)

(Complete

ca pability)

(No

capability)

(Complete

capability)

(No

capability)

(System

controller)

(Send IFC

and

take

charge)

(Senri REN)

(Send

interface

messages)

(Three-state

drivers)

Model

8642A/B

General

Information

1-5.

AN

EXPLANATION

OF

THE

ON-SITE

SERVICE

STRATEGY

The objectives

of

the

on-site

service

strategy

are

to provide the equipment

and

information

necessary to enable

service-trained

personnel to troubleshoot and

repair

the

lIP

8642A/B

to

the

module level

at

its operating site. Using

the

On

-Site Service Kit (refer

to

paragraph

1-12

for

a

description), a service person should

be

able to successfully

repair

80%

or more

of

Signal

Genera-

tor

failures

within

two

hours

after

arriving

at

the operating site. Repair times

may

be longer

for

individuals

with

no prior

training

or

experience on

the

lIP

8642A/B.

The following service

features

have been designed

into

the HP

8642A/B:

Hardware

Features

• Each

major

circuit

function

is

physically located

in

a separate module.

• RF modules

are

arranged

physically

from

left

to

right

in

the

order

of

their

functional

sequence.

• Most

intermodule

connections

are

accessible

from

the top

of

the

instrument.

e

There

are

no

RF

feedback

paths

between modules

(a

feed-forward

design).

e

Printed

on

the

inside top cover

of

the

instrument

is

an

illustrated

top view of

the

inside

of

the

instrument

as well as a table

of

cable connections.

Built-In

Test

Features

• A

voltmeter

and

a power

meter

are built into

the

instrument.

• Unique service tools

are

stored inside the HP

8642A/B

cabinet.

Firmware

Features

• All

RF

modules

are

connected to a diagnostic bus which allows

the

controller

to

monitor

critical

operating

test points

within

the

module.

• Critical message

information

concerning

the

operating condition of

the

HP

8642A/B

is

displayed

in

numeric

code on the

front

panel (or can be

printed

via

an

HP-IB

printer

with-

out

the

need

of

an

external

controller).

•

Four

instrument

diagnostic levels help to analyze

the

instrument's

condition:

Power-Up

Self

-Check,

Fault

Detection

Self

-Check,

Instrument

Level Diagnostics,

and

Module Level

Diagnostics.

1-7.

HOW

THE

OPERATING

FUNDAMENTALS

CAN

HELP

YOU

LEARN

TO

OPERATE

THE

INSTRUMENT

The

Operating

Fundamentals

are abbreviated,

front-panel

operating

instructions

(included

with

Volume I as a separate booklet) which will enable you to operate

the

basic functions

of

the

Signal

Generator

without

using

the

more detailed and extensive portions of

the

Operating

Manual.

However,

the

Detailed Operating Instructions in Section III

can

provide more specific

inf

orma-

tion, which

can

be

easily accessed

with

an

Index.

rev060CT86

1-3

General

Information

Model

8642A/B

1-8.

ACCESSORIES

SUPPLIED

WITH

THE

8642A/B

The

line

power

cable

is

the

only

accessory supplied

with

the

Signal

Generator.

The

line

power

cable

is

selected

at

the

factory

according to

the

line

power

requirements

specified by

the

cus-

tomer.

If

the

line

power

cord

type

is

not

specified,

it

will

be

selected according

to

the

voltage

available

in

the

country

of

destination.

For

the

part

numbers

of

the

power

cables,

refer

to

Table

2-1

on page

2-4,

Power Cable

and

Mains Plug

Part

Numbers. Signal

Generators

shipped

to

countries

using

115

volts

are

also supplied

with

a set

of

fuses

for

230

volt

operation.

1-9.

OPTIONS

AVAILABLE

WITH

THE

INSTRUMENT

Electrical

Options

Electrical

option

numbers

can

be displayed

on

the

front

panel

or

read

via

lIP-lB.

Refer

to

page

3-208.1

for

more

information.

Option

001 (High

Stability

Time

Base). This

optional

time base improves

the

frequency

accuracy

and

stability

of

the

internal

reference

oscillator.

(Refer

to

Table I

-1

for

specifications.)

Option

002

(Rear-Panel

Output

for All Connectors). This

option

places all

front-panel

connec-

tions

on

the

rear

panel

of

the

instrument.

8642A

OQtion

003

(Increased

Output

Power Option). This

option

enables

the

HP

8642A

Syn-

thesiz.ed Signal

Generator

to deliver the same

output

power as

the

8642B (excluding

band

10).

Mechanical

Options

Option

907

(Front

-Handle

Kit).

Front

handles

are

provided

when

Option

907

is

ordered.

Order

a

Front-Handle

Kit

as HP

part

number

5061-0089.

Option

908

(Rack-Flange

Kit).

Rack

flanges

are

provided

for

the

Signal

Generator

when

Option

908

is ordered. (When

rack

mounting

the

Signal

Generator,

ensure

the

instrument

is

supported

properly

by using

the

system cabinet's

support

rails. Due

to

the

weight

of

the

HP

8642A/B,

not

using

the

support

rails could cause damage

to

the

instrument

and/or

the

system cabinet.)

Order

a

Rack-Flange

Kit

as

HP

part

number

5061-0077.

Option

909

(Rack-Flange

and

Front-Handle

Combination

Kit). This

is

not

a

Front-Handle

Kit

and

a

Rack-Flange

Kit packaged together;

it

is

a

unique

part

that

combines

both

functions.

Combination

kits

are

provided

for

the

Signal

Generator

when

Option

909

is

ordered. (When

rack

mounting

the

SigndJ

Generator,

ensure

the

instrument

is

supported

properly

by using

the

system

cabinet's

support

rails.

Due

to

the

weight

of

the

HP

8642A/B,

not

using

the

support

rails

could cause

damage

to

the

instrument

and/or

the

system cabinet.)

Order

a

Rack-Flange

and

Fran

t-

Handle

Combination

Kit

as HP

part

n

um

ber

5061-

0083.

Rack

-Slide

Kit

information

is

listed on

the

following page

under

paragraph

1-10,

Equipment

That

Can

Be

Ordered

for

the

Signal

Generator.

If

yeu

are

planning

to

take

advantage

of

the

On-Site

Service

Strategy

for

the

HP

8642A/B,

we suggest you use

the

Rack-SEde

Kit

when

rack

moun

11l1g

the

instrument.

1-4

rev.20MAR85

Model

8642A/B

General

Information

Documentation

Options

Option

910

(Extra

Manual). This

option

provides

an

additional

Operating

and

Service

Manual

(Volumes I

through

IV).

Order

the

additional

manual

as

HP

part

number

08642-90012.

Option

914

(Delete Service Manual). This option provides only

an

Operating

Manual

(Volume

I)

with

the

Signal

Generator.

Order

an

Operating

Manual

as HP

Part

Number

08642-90013.

Option

710

(On

-Site

Service Manual). The

On

-Site

Service

Manual

is

a service tool

directed

at

speedy

troubleshooting

and

repair

of

the

HP

8642A/B

to

the

module level. The

manual

provides

a

systematic

approach

to

troubleshooting

which

directs

the

technician

through

instrument

checks,

module-group

checks,

and

then

specific module checks.

The

On

-Site

Service

Manual

is

designed

for

use

with

the

On-Site

Service Kits. (Refer

to

paragraph

1-10

below.)

Order

the

On-

Site Service

Manual

as

HP

part

number

08642-90020.

(It is

not

necessary to

order

option

710

if

an

On

-Site

Service

Kit

is

ordered.)

1-10.

EQUIPMENT

THAT

CAN BE

ORDERED

FOR

THE

SIGNAL

GENERATOR

On-Site

Service

Kits

Each

of

these

kits

contains

an

On-Site

Service

Manual

in

addition

to

all

HP

8642A/B

modules

and

interconnecting

cables

required

for

on-site, module

-level

repair.

Each

kit

also includes a set

of

tools (not

normally

found

in

a

standard

tool box) necessary to service the HP

864

2A/B. Order

the

HP

11801A

to

service

the

HP 8642A.

Order

the

HP 11801B

to

service

the

HP 8642B.

Or-

der

the

HP

11801

C

to

service

both

instruments.

Refer

to

Table

1-

5,

on page

1-17,

for a

com-

plete

parts

listing

of

the

On

-Site Service Kit.

(Although

two

part

numbers

are listed

for

modules

in

the

On

-Site

Service Kit, only

the

new

or

the

restored module will be

included

in

the

kit.)

Bench

Service

Kit

This kit,

in

conjunction

with

the

HP

8642A/B

Service

Manual,

is

directed

at

component-level

repair

and

module

calibration

of

the

HP

8642A/B.

The

kit

contains

special tools

and

troubleshooting

aids such as a Torx torque

wrench

and

Torx

bits, test adapters,

and

special cables

and

cable adapters, etc.

Order

the

Bench Service Kit as HP

part

number

11802A.

Refer

to

Figure

1-

2

on

page

1-19

for a complete parts listing of

the

Bench Service Kit.

Signal

Generator

Test

System, HP

8952S

This

test

system provides the necessary

equipment

for

automated

performance

testing of

the

HP

8642A/B.

One

of

the

following software options

is

required

to

operate

the

test set.

Software

Pac:

HP

11795

Opt. 205 (for

the

HP 8642A)

or

HP

11795

Opt.

206

(for

the

HP

8642B).

50

Ohm

to

75

Ohm

Adapter

This

adapter

is

an

impedance-matching

network

required

for testing

with

75

ohm

cabling

and/

or

loads.

Order

the

adapter

with

HP

part

number

11687

A.

Fiberglas

Transit

Case

Order

this

protective

case for shipping

and

transporting

the

HP

8642A/B

Signal

Generator

as HP

part

number

9211-

26 61.

Rack

-Slide

Kit

This

heavy-duty,

rack-~lide

kit

is

the

kit

recommended

for

the

HP

8642A/B

Signal

Generator.

Order

the

Rack-Slide

Kit

for

instrument

cabinet

frames

assembled

with

metric

hardware

as

HP

part

number

08642-80059.

Order

the

Rack-Slide

Kit

for

lIlotrument

cabinet

frames

assembled

with

English

hardware

as HP

part

number

08642-80058.

(Note

that

if

metric

hardware

is

used,

the

rear

panel

of

the

instrument

mentions

that

fact.)

1-5

General

Information

Model

8642A/B

1-11.

HOW

TO

USE THE

RECOMME~DED

TEST EQUIPMENT TABLE

Table

1-

3 (page

I-IS)

lists

the

test

equipment

required

for

testing, adjusting,

and

servicing

the

Signal

Generator.

The

critical

specification

column

describes

the

essential

requirements

for

each

piece of test

equipment.

Other

equipment

can

be

substituted

if

it

meets

or

exceeds these

critical

specifications.

Alternate

models

are

suggested

in

Table

1-4

on

page

1-16.

Some reasons

for

recommending

an

alternate

model

might

be its

HP-IB

compatibility

or

its

ability

to replace

two

or more single

models.

1-12.

INSTRUMENTS COVERED

BY

THIS

MANUAL

Serial Numbers.

Attached

to

the

instrument

is a

serial-number

plate.

The

serial

number

is

in

the

form:

OOOOAOOOOO.

The

first

four

digits

and

the

letter

are

the

serial prefix.

The

last five

digits

form

the

suffix

that

is

unique

to

each

instrument.

The

contents

of

this

manual

apply

directly

to

instruments

having

the

same serial prefix(es) as those listed

at

the

beginning

of

Volume

I.

Manual

Updates.

An

instrument

manufactured

after

the

printing

of

this

manual

may

have

a

serial

prefix

that

is

not

listed

at

the

beginning

of

Volume I.

An

unlisted

serial

prefix

number

indicates

that

the

instrument

differs

in

some

way

from

those

documented

in

this

manual.

A

"MANUAL

UPDATES"

packet

is

shipped

with

the

manual

when

necessary

to

provide you

with

the

most

current

information

available

at

the

time

of shipment. These

packets

consist

of

replacement

and

addition

pages

which

should be

incorporated

into

the

manual

to

bring

it

up

to

date.

Hewlett-Packard

offers

a

Documentation

Update

Service

that

will

provide

you

with

further

updates

as

they

become available.

If

you

operate

or service

instruments

of

different

serial prefixes, we strongly

recommend

that

you join

this

service

immediately

to

ensure

that

your

manual

is

kept

current.

For

more

information

refer

to

the

Documentation

Update

Service reply

card

included

with

this

manual

or

contact:

1-6

Hewlett-Packard

Company

Spokane

Division

Technical

Writing

Department

24001 E. Mission

--

TAF

C-34

Spokane, WA 99220

(509)

922-4001

Model

8642A/B

General

Information

Table

1-1.

Specifications

(1

of

6)

Electrical

Characteristics

Performance

Limits

Conditions

FREQUENCY

Range

8642A 100 kHz to 1057.5 MHz

8642B 100 kHz

to

2115 MHz

Carrier Frequency

Band1

10 (8642B only) 1057.500001-2115.000000 MHz

9 528.750001-1057.500000

MHz2

8 264.375001- 528.750000 MHz

7 132.187501- 264.375000 MHz

6 66.093751- 132.187500 MHz

5 33.046876- 66.093750 MHz

4 16.523438- 33.046875 MHz

3 8.261719- 16.523437 MHz

2 4.130860- 8.261718 MHz

1 0.100000- 4.130859 MHz

HET 0.100000- 132.187500 MHz

Resolution 1 Hz

(0.1

Hz with Special Function

240

or

241)

Stability Same as reference oscillator

INTERNAL REFERENCE

OSCILLATOR

Standard See Supplemental Characteristics

Option

001

Aging Rate

<10-

9/day After 8-day warm-up

SPECTRAL PURITY

SSB Phase Noise CW, AM, or Angle Modulation

<1/60

Maximum Peak Deviation

SSB Phase SSB Phase

Band Noise,

20

kHz Noise Floor,

offset from 200 kHz offset

carrier from carrier

10

-125

dBc/Hz

-134

dBc/Hz

9

'-134

dBc/Hz

-143

dBc/Hz

8

-137

dBc/Hz

-144

dBc/Hz

7

-141

dBc/Hz

-144

dBc/Hz

6

-144

dBc/Hz

-145

dBc/Hz

5

-145

dBc/Hz

-145

dBc/Hz

4

-146

dBc/Hz

-147

dBc/Hz

3

-147

dBc/Hz

-148

dBc/Hz

2

-148

dBc/Hz

-149

dBc/Hz

1

-137

dBc/Hz

-138

dBc/Hz

HET

-125

dBc/Hz

-137

dBc/Hz

180th

generators cover their ranges

in

one continuous span. However, many other specifications are dependent on carrier frequency. To simplify

such specifications, the 8642A and

86428

carrier frequency ranges are divided into bands.

28and

9,

86428 carrier frequency range is 528.7500005 MHz to 1057.500000 MHz

1-7

General

Information

Electrical

Characteristics

SPECTRAL PURITY

(Cont'd)

Residual

FM

Band

10

(8642B only)

9

8

1-7

HET

Residual AM

Spurious Output Signals

Harmonics

Sub-harmonics

Non-harmonics

OUTPUT

Level Range

Maximum Level Available

Resolution

Absolute Level Accuracy4

Flatness

Impedance

SWR

Reverse

Power

Protection

Third Order Intermodulation

Available Calibration Units

3Not specified in HET

ba~d

Table

1-1.

Specifications

(2

of

6)

Performance

Limits

Post Detection Bandwidth

0.3 to 3.0 kHz 0.05

to

15.00 kHz

<5

Hz rms

<2

Hz rms

<1.2

Hz rms

<1 Hz rms

<3.5

Hz rms

<0.01%

AM rms

8642A/B,

Bands 1-9, HET

---.-~--

-30

dBc

-20

dBc

none

-100

dBc

3

<9

Hz rms

<5

Hz rms

<2

Hz rms

<1.2

Hz rms

<5

Hz rms

8642B,

Band 10

-25

dBc

-20

dBc

-45

dBc

-94

dBc

From Maximum Level Available to

-140

dBm

(0.023

f1.V

into

50

ohms)

+20

dBm (2.24V)

+19

dBm (2.00V)

+18

dBm (1.78V)

+17

dBm (1.59V)

+16

dBm (1.41V)

0.1

dB

-<:1

dB

<±0.75

dB

50

ohms nominal

<1.5:1

<2.0:1

50W,

25

Vdc, 8642A

25W, 50 Vdc, 8642B

<-50

dBc

at

+10

dBm. Typically

decreases 10

dB

for

every 5

dB

of

combined level decrease

dBm,

V,

mV,

!-lV,

dB!-lV, EMF

V,

EMF mV, EMF

!-lV,

dB

EMF}lV.

REL.

ZERO

or

REF SET can be

used

to

obtain settings such as

dBVor

dBf.

Model

8642A/B

Conditions

CW, AM,

or

Angle Modulation

:5V3

Maximum

Peak Deviation

0.3 to 3.0 kHz

Post Detection Bandwidth

Output level :5+10

dBm

Output level :5+16

dBm

>

10kHz

from the carrier

8642A (except

Opt. 003)

bands 1 thru

"1

DNA

band

8,

HET

n/a

band 9

8642B and

8642A Opt. 003

bands 1 thru 7

band 8

HET

band 9

band 10 (8642B)

Output levels

2:-127

dBm

Output level, +10 dBm

Output levels

<0

dBm

Output levels

2:0

dBm

Two

signal generators with frequen-

cies spaced

25

kHz

apart

into a

resistive combiner

4Absolute output accuracy consists

of

allowances for detector linearity, temperature, flatness, and attenuator accuracy.

1-

8

Model

8642A/B

General

Informa

lion

Table

1-1.

Specifications

(part

of

3

of

6)

Electrical

Characteristics

Performance

Limits

Conditions

AMPLITUDE MODULATION

Depth 0% to 99.9% Output level :0;+10 dBm

Resolution 0.1%

Indicator Accuracy :!: (3.5% of setting +1% AM) 8642A Bands 1-8, HET;

(1

kHz rate, up to 90% AM) 8642B 8ands 1-9,

HET

:!:

(5%

of

setting +1% AM) 8642A Band

9,

8642B Band 10

AM Distortion at 1 kHz Rate 8642A Bands 1-8, HET;

86428

Bands 1-9

<1%

0% to 30% AM

<2%

30%

to

70% AM

<4%

70%

to

90% AM

8642A Band

9,

HET;

8642B Band 10, HET

<2%

0% to 30% AM

<4%

30% to 70% AM

<6%

70%

to

90% AM

AM 3

dB

Bandwidth

dc

to

100 kHz External dc, bands

1,

5 thru 10

(Depth

:0;90%)

20 Hz

to

100 kHz External ac and internal,

bands

1,

5 thru 10

dc

to

20 kHz External dc, bands5

2,

3,

4

20 Hz

to

20 kHz External ac and internal,

bandss 2, 3, 4

Incidental

<PM

<0.2 radians peak

(1

kHz rate and 30% AM)

sAM bandwidth is increased

to

100 kHz in these bands by using Speciat Function 8 (prefer HET band).

)

1-

8 1

Model

8642A/B

General

Information

Table

1-1.

Specifications

(part

of

3 of

6)

Electrical

Characteristics

Performance

Limns

Conditions

FREQUENCY MODULATION

Maximum

FM

Deviation External dc coupled

Band

10 (8642B only) 3 MHz

9 1.5 MHz

8 750 kHz

7 375 kHz

6 187.5

kH

z6

5 93.75

kH

z6

4 46.875 kHz6

3 23.437 kHz6

2 11.718 kHz6

1 93.75

kH

z6

HET 1.5 MHz

(the smaller of:) External ac coupled or internal

10 (8642B only) 3 MHz

or

fmod x 2160

9 1.5 MHz or fmod x 1080

8 750 kHz or fmod X 540

7 375 kHz or fmod X 270

6 187.5 kHz or fmod X 1356

5 93.75 kHz or fmod X 67.56

4 46.875 kHz or fmod X 33.756

3 23.437 kHz or fmod X 16.8756

2 11.718 kHz

or

fmod X 8.43756

1 93.75 kHz or fmod X 67.56

HET 1.5 MHz

or

fmod X 1080

Resolution 0.7% of setting

or

0.0004%

of

maximum deviation, whichever

is

larger

Indicator Accuracy :!:(5% of setting

+10

Hz)

(Rates 20 Hz to 100 kHz)

FM Distortion 4% For maximum dc-coupled deviation

(Rates

20

Hz

to

100 kHz) 2% For 1/2 max dc-coupled deviation

0.4% For 1/15 max dc-coupled deviation

FM

3 dB Bandwidth dc to 200 kHz External dc source

20

Hz

to 200 kHz External ac source

20

Hz

to

100 kHz Internal source

6Maximum deviation may be increased up

to

that shown for the HET band

(0.1

MHz to 132,1875 MHz carrier frequency) by selecting deviation larger

than the values shown here. HET band can also be selected with Special Function

6.

rev07JUNE85

1-9

General

Information

Model 864

2A/B

Table 1-1. Specifications (4

of

6)

Electrical

Characteristics

Performance

Limits

Conditions

FREQUENCY MODULATION (Cont'd)

Incidental

AM

0.3% 20 kHz peak deviation, 1 kHz rate,

>400

kHz carrier frequency, output

level :$+15 dBm

Carrier Frequency Offset none ac and internal

When Entering FM

or

<500

Hz

dc, 8642AfB Bands 1-9, HET

PM

Modes

<1

kHz dc, 8642B Band

10

PHASE MODULATION

Maximum Phase Deviation

Band

10 (8642B only) 200 radians

9 100 radians

8 50 radians

7 25 radians

6 12.5 radians7

5 6.25 radians7

4 3.125 radians7

3 1.5625 radians7

2 0.78125 radians7

1 6.25 radians7

HET 100 radians

Resolution 0.7% of setting

or

0.0004% of

maximum deviation, whichever is

larger

Indicator Accuracy ±(5%

of

setting +0.09 radians) 1 kHz rate

<l>M

Distortion <0.4% 1 kHz rate

<l>M

3

dB

Bandwidth 20

Hz

to

15 kHz Internal and external ac

dc to 15 kHz External dc

PULSE MODULATION8 2509A to 2550A 2551A and above Output levels :$+15 dBm

Pulse On/Off Ratio

>30

dB

>40

dB 8642AfB Bands 1-9, HET

>45

dB

>80

dB 8642B, Band 10

Rise/Fall Time <3.5 jLS <400 ns 10% to 90%

Maximum Repetition Frequency

50

kHz 100 kHz

Minimum Pulse Width 6

jLS

2 jLS

Nominal Input Threshold Level 1.5V 1.5V External

dc

INTERNAL MODULATION

OSCILLATOR

Frequency Range 20 Hz

to

100 kHz

Frequency Resolution 1%

of

setting

Frequency Accuracy 2% of setting

Output Level Range oto 3.3 Vpk Into 600 ohms

Output Level Resolution 4

mV

Output Distortion (>0.5 Vpk) <0.02% 0.02 kHz to 15.8 kHz

<0.15% >15.8 kHz

Output Level Accuracy ±(4%

+15

mV) Within

1s

Output Impedance 600 ohms ±10%

7Maximum deviation may

be

increased up to that shown for the HET band

(0.1

MHz to 132.1875 MHz carrier frequency)

by

selecting deviation larger

than the values shown here. HET band

can

also be selected with Special Function

8.

80

utput level accuracy is typically

±3

dB.

1-10

rev.16MAY86

Model

8642A/B

Electrical

Characteristics

GENERAL

Operating Temperature Range

Storage Temperature Range

Power Requirements

Line Voltage

Line Frequency

Power Dissipation

Electromagnetic Interference

(Leakage)

Net Weight

Shipping Weight

Dimensions

Height

Widtrl

Depth

HP

SYSTEM

\I

Module Size

Electrical

Characteristics

FREQUENCY SWEEP

Digitally Stepped Sweep

Start

and Stop Sweep

Time

Phase Continuous Sweep

Start-Stop Sweep

Maximum Sweep Span

Band

10 (8642B only)

9

8

7

6

5

4

3

2

1

HET

General

Information

Table

1-1.

Specifications

(5 of

6)

Performance

Limits

0°

to

55°C

-55°

to +75°C

100V, 120V, 220V,

or

240V

47.5 to 440 Hz

300 VA max

MIL

STD 461B and FTZ 1115

32.7 kg (71.5

Ib)

43

kg (95

Ib)

133 mm (5.25 in.) nominal

425 mm (16.75 in.) nominal

617 mm (23.8 in.) nominal

51!4H

x 1W x 23D

Conditions

+5%,

-10%

Conducted and radiated interference

is within the requirements

of

MIL

STD

461

Bmethods

CE03 and

RE02. Interference is also within

the standards set by FTZ 1115.

Also RF leakage

of

<0.5

p.V

is in-

duced in a two-turn loop 2.5 cm

in

diameter, held 2.5 cm away from

any surface,

for

output

levels

!SO

dBm.

Features

Sweeps between

two

selected end-points

in

a linear, step-wise manner.

End-paints can be anywhere within the frequency range

of

the instrument.

In

AUTO

sweep

mode, sweep

must

stay within the range

of

bands 2

through

9,

or

band

1,

or

band 10,

or

the HET band.

Maximum sweep time: 999s. Minimum

sweep

time: 275 ms. A maximum

number

of

distinct frequency points is automatically selected based on the

end-points and sweep time.

Instrument sweeps between

two

selected end-points in a linear, phase

continuous manner.

End-points can be outside the band, but

(Start Frequency + Stop Frequency) + 2

must

be within the band.

800 kHz

400 kHz

200 kHz

100 kHz

50 kHz9

25

kH

z9

12.5

kH

z9

6.25

kH

z9

3.125

kH

z9

25 kHz9

400 kHz

9Maximum sweep span may

be

increased up to that shown for the HET band (01 MHz

to

132.1875 MHz carrier frequency) by selecting a frequency

span larger than the span stlOwn here. HET band can also be selected with Special Function

8.

1-11

General

Information

Model

8642A/B

Table

1-1.

Specifications

(6

of

6)

Electrical

Characteristics

Features

FREQUENCY SWEEP (Cont'd)

Phase Continuous Sweep (Cont'd)

Sweep Time Maximum sweep time: 9995. Minimum sweep time: 5 ms. Maximum and

minimum sweep time are also dependent on end-point separation and fre-

quency band selected.

X-Axis Output a to 10 Vdc, ±10%

Z-Axis Output TTL positive true for crt display blanking during retrace,

REMOTE OPERATIONS

HP-IB (IEEE 488-1978) Capability

Interface Hewlett-Packard Interface Bus (HP·IB). HP-IB is Hewlett-Packard's imple-

mentation

of

IEEE Standard 488-1978,

Functions Controlled All functions controlled from the front panel, with the exception

of

the

power switch and the knob, are programmable with the same accuracy

and resolution

as

in manual mode.

HP-IB Address Select Code Settable via the front panel

or

over HP-IB from

00

to 30 (5-bit decimal

equivalent).

(A

listen-only mode

is

also available as 31.)

Interface Function Listener, talker, and controller

IEEE-488 Functions SH1,

AH

1,

T6,

TEO,

L3,

LEO,

SR

1,

RL

1,

PPO,

DC1,

DTO,

Cl,

C2,

C3,

Implemented C28,

E2

1-12

HP 8642A Use and care manual

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