Racal Instruments 9081 User manual

The Electronics Group

PUBLICATION NUMBER WOH 7204
ISSUE 10.8.83
AND
SYNTHESIZED
SIGNAL GENERATORS
RACAL-DANA INSTRUMENTS INC.
4Goodyear Street, PO Box C 19541, Irvine, Ca 92713, USA.
Telephone: [phone]. TWX: 910-595-1136, TLX: 678-341
RACAL-DANA INSTRUMENTS LTD.
Duke Street, Windsor, Berkshire SL4 1SB, United Kingdom
Telephone: Windsor (07535) 68101, TLX: 847013
RACAL-DANA INSTRUMENTS S.A.
18 Avenue Dutartre, 78150 Le Chesnay, France
Telephone: [phone], TLX: 697 215
RACAL-DANA INSTRUMENTS GmbH
Hermannstrasse 29, D-6078 Neu Isenburg, Federal Republic of Germany
Telephone: [phone], TLX: 412896
RACAL-DANA INSTRUMENTS ITALIA SRL
20161 Milano, Via Angeloni 8, Italy
Telephone: [phone] TLX: 315697
PUBLICATION DATE: NOVEMBER 1976
Copyright ©1976 by Racal-Dana Instruments Ltd. Printed in England. All rights reserved.
This book or parts thereof may not be reproduced in any form without written permission of the publishers.

in case of Electric Shock
1. Lay victim on his back.
2. Clear victim’s mouth and throat.
3. Tilt victim’s head back as far as
possible and raise his head.
Have someone else send for aDoctor
Keep patient warm and loosen his clothing
4. Pinch victim’s nostrils.
5. Take adeep breath.
6. Cover the victim’s mouth with yours
and blow, watching his chest rise.
Note: Blow forcefully into adults, but
gently into children.
7. Move your face away to allow victim
to breathe out, watching his chest fall.
8. Repeat first five to ten breaths at a
rapid rate; thereafter, take one breath
every three to five seconds.
9. Keep victim’s head back as far as
possible all the time.

Racal-Dana Instruments August 1983
SYNTHESIZED SIGNAL GENERATOR 9082
The changes listed below have been made on some instruments having serial
numbers above 4010.
Changes found to apply to the instrument with which this manual is to be
used should be incorporated in the manual by manuscript amendment.
PARTS LIST 4
Resistors
Capacitors
20-2103 Delete '86'
20-2223 Delete '87'
Add new components:
'20-2123 Carbon Film 1/4 512 kR87
'20-2332 Carbon Film 1/4 53.3k' R86
'20-1521 Carbon Film 0.1 5Ik Ra'
21-1512 Delete *6A T
Add new component
:
'21-1764 Ceramic 100 2In Ca'
FIG. 9
R86
R87
C64
Amend value to 3.3k
Amend value to 12k
Delete all details
Add new components Ra (Ik)
pins 2and 3of IC5. and Ca (In) in series between
PARTS LIST 3b
Capacitors 21-1677 Add 'Ca'
FI G. 7
Add Ca (5.6p) between IC3 pin 6and 0V.
AR5184
9081/9082
Issue 10
Change No.1

POZIDRIV' SCREWDRIVERS
Metric thread cross-head screws fitted to Racal equipment are of the 'Pozidriv 1
type. Phillips typeand 'Pozidriv' type screwdrivers are not interchangeable,
and the use of the wrong screwdriver will cause damage. POZIDRIV is a
registered trade mark of G.K.N. Screws and Fasteners Limited. The ’Pozidriv 1
screwdrivers are manufactured by Stanley Tools Limited.

lACAlL
modulation
liequnncy ,
frequency MHz
•
•

IMPORTANT NOTES
1.This manual is applicable to Model 9081, 9081 H, 9082 and 9082H
instruments.
2. The most significant differences between the models are:-
(a) The frequency range for Models 9081 and 9081 His 5to 520 MHz
while that for Models 9082 and 9082H is 1.5 to 520 MHz.
(b) The frequency range for external AM is d.c. to 100 kHz for
Models 9081 and 9081H, and d.c. to 20 kHz for Models 9082 and
9082H.
3* Models 908WH and 9082H incorporate amodular r.f. amplifier which
increases the maximum r.f. output to +13 dBm into 50Q. To maintain
the same minimum output level an additional 10 dB step is provided on the
output attentuator.
9081 &9082

CONTENTS
Page
SECTION 1TECHNICAL SPECIFICATION AND SUPPLEMENTARY DATA
SECTION 2DESCRIPTION OPERATION AND MAINTENANCE
CHAPTERl GENERAL DESCRIPTION
INTRODUCTION 1-1
RF TUNING 1-1
RF OUTPUT 1-1
MODULATION FACILITIES 1-1
POWER SUPPLY 1-2
HANDBOOK NOTES 1-2
CHAPTER 2INTRODUCTION 2-1
POWER SUPPLY AND FREQUENCY STANDARD 2-1
OPERATING 2-1
1RF Tuning 2-1
Output Level Setting 2-2
Modulation Mode Selection 2-3
Multiple Modulation 2-3
Switching Off 2-3
DESCRIPTION OF CONTROLS, INDICATORS AND
CONNECTIONS 2-4
CHAPTER 3PRINCIPLES OF OPERATION
BRIEF DESCRIPTION 3-1
Introduction 3-^1
Carrier Tuning 3-1
Channel Spacing Reference Frequencies 3-1
Amplitude Modulation and Automatic Level
Control 3-3
Frequency Modulation 3-3
9081 &9082 Vol.2 Contents (1)