![](/html/71/71b0/71b0eb9f93d57a4c4d06f9aeec3035afd3f64d5d778dceb80cc441b5ad646c16/bg1.png)
Maintenance Manual
MASTR
®
III
RF Package, VHF
LBI-38754F
TABLE OF CONTENTS
TRANSMIT SYNTHESIZER . . . . . . . . . . LBI-38640
RECEIVE SYN THESIZER . . . . . . . . . . . LBI-38641
RECEIVE RF MODULE . . . . . . . . . . . . . LBI-38642
IF MODULE . . . . . . . . . . . . . . . . . . . LBI-38643
LBI-39123
POWER AMPLI FIER . . . . . . . . . . . . . . LBI-38531
AE/LZB 119 3521/20
DUPLEXER . . . . . . . . . . . . . . . . . . . LBI-38763
M/A-COM Wireless Systems
3315 Old Forest Road
Lynchburg, Virgini a 24 50 1
(Outside USA, 434-385-2400) Toll Free 800-528-7711
www.
macom-wireless.com Printed in U.S.A.
![](/html/71/71b0/71b0eb9f93d57a4c4d06f9aeec3035afd3f64d5d778dceb80cc441b5ad646c16/bg2.png)
TABLE OF CONTENTS
Page
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
REGULATORY APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
MODULE NUMBERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ISOLATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ANTENNA SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INTERCONNECTION DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ITEM
RECEIVER
SENSITIVITY (12 dB SINAD)
SELECTIVITY (25 kHz)
(30 kHz)
INTERMODULATION REJECTION
LBI-38754G
SPECIFICATIONS
Table 1 - Station Specifications
SPECIFICATION
-116 dBm (0.35 µV)
-95 dB
-100 dB
-90 dB
SAFETY NOTES
The means of disconnecting power from a station cabinet is the cabinet power supply plug.
•
When conducting repair/maintenance, disconnect the cabinet power supply plug from the AC source.
•
In European applications, equipment must be installed in a closed cabinet.
•
Only replace components with components specified by M/A-COM Private Radio Sys tems.
•
NOTICE!
Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier. Any
repairs, alterations or substitution of recommended parts made by the user to this equipment not approved by the manufacturer
could void the user’s authority to operate the equipment in addition to the manufacturer’s warranty.
INTERMEDIATE FREQUENCY
IMAGE REJECTION
SPURIOUS RESPONSE REJECTION
HUM & NOISE (300-3000 Hz)
AUDIO RESPONSE (de-emphasis)
FREQUENCY SPREAD (range)
(full specification)
(3 dB degradation)
TRANSMITTER
RATED POWER OUTPUT
FREQUENCY STABILITY
CONDUCTED SPURIOUS EMISSIONS
MODULATION DEVIATION
FM HUM & NOISE (300-3000 Hz)
AUDIO RESPONSE (pre-emphasis)
FREQUENCY SPREAD (range)
(full specification)
21.4 MHz (low-side injection)
-100 dB
-100 dB
-55 dB
+1/-3 dB of 6 dB/Octave (@ Line Output )
+2/-8 dB of 6 dB/Octa ve (@ Local Speaker)
136.0-151 MHz, 150.8-174 MHz
2 MHz
3 MHz
110 Watts
1.5 ppm
±
-36 dBm
5 kHz
±
-55 dB
+1/-3 dB of 6 dB/Octave
136.0-151 MHz, 150.8-174 MHz
136.0-151 MHz, 150.8-174 MHz
NOTICE!
The software contained in this dev ice is copyrighted by the M/A-COM Private Radio Systems, Inc. Unpublished rights are
reserved under the copyright laws of the United States.
This manual is p ubl ishe d by
to this manual necessitated by typographical errors, inaccuracies of current information, or improvements to programs
and/or equipment, may be made by
will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any
form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the
express written permission of
Copyright© 1992 - 2002 M/A-COM Private Radio Systems, Inc. All rights reserved.
M/A-COM Private Radio Systems, Inc.
M/A-COM Private Radio Systems, Inc.
M/A-COM Private Radio Systems, Inc.
, without any warranty. Improvements and changes
, at any time and without notice. Such changes
1