Datron PRC1077 Operator's Manual

PRC1077-MSOP

PRC1077

Radio Set

Operator Manual

Datron World Communications Inc.

Manual Part No. PRC1077-MSOP

Release Date: March 2007

Revision: C

3030 Enterprise Court

Vista, CA 92081, U.S.A.

Phone: [phone] Fax: [phone]

E-Mail: [e-mail]

www.dtwc.com

Change Description

Date of
Revision

Revision
Letter

Description of Changes

Pages
Affected

6/1991 A Original release All

6/2006 B Overall update to text and format. All

3/2007 C Changed cable part number part number from

C991611 to C991618.

Added protective power cap to replacement parts

Page 2-22
Figure 2-14

Page 4-4

table.

PRC1077-MSOP i

© 2003 Datron World Communications, Inc. (Datron)
All rights reserved.

Datron World Communications, Inc.

This manual, as well as the software described in it, is
furnished under license and may only be used or copied
in accordance with the terms of such license. The information
in this manual is furnished for informational use
only, is subject to change without notice, and should not
be construed as a commitment by Datron. Datron
assumes no responsibility or liability for any errors or
inaccuracies that may appear in this book.
Except as permitted by such license, no part of this publication
may be reproduced, stored in a retrieval system,
or transmitted, in any form or by any means, electronic,
mechanical, recording, or otherwise without the prior
written permission of Datron.

Software License Agreement and Warranty

This software is licensed to the user (licensee) under the
express terms and conditions of Datron’s software
licensing policies and agreement as outlined below. By
receiving and installing this software package the user
(licensee) has indicated acceptance of the terms and conditions
of this agreement presented herewith.
As used in this document, the term “Software” shall
mean the application or control software in machine readable
format and the hardware protection key, along with any or all
supporting documentation, as well as all updated or enhanced
versions of the program supplied to the user at later date(s).
This software license does not include source code, and there­fore, no license is granted with respect to source code of any
kind utilized directly or indirectly in any Datron or Datron
supplied third party product. Note, in some cases, covered
software may be included in Datron products in RAM or
ROM, and/or forms of machine readable code, not readily
accessible to the user or licensee.
In consideration of the terms and conditions of this
agreement, Datron grants the user a non-exclusive, nontrans­ferable license to install and operate one copy of the program.
Licensee agrees not to attempt, aid, authorize, or direct any
effort, either directly or indirectly to reverse engineer or
reverse compile the Software. Licensee further agrees they or
their agents are not authorized to
make derivative versions or changes to the Software.
Title to and ownership of the Software shall at all times
remain with Datron and/or its licensors. Further, no
license is granted to copy or reproduce in any form whatsoever
the Software supplied without the express written permission
of Datron, prior to any such contemplated action.
Datron may terminate this agreement and discontinue
further warranty coverage at any time due to failure to
comply with the terms and conditions of this agreement.
In such an event, Datron will provide the user
with written notice of such a “failure-to-comply” and the
user will have 10 days to demonstrate that a remedy has
been implemented. If the user fails to perform, the
agreement will be terminated by further written notice
from Datron. Upon termination, the user shall immediately

return all original Software, documentation, and
any copies of each to Datron.
This Software is licensed “AS IS” and Datron provides a war­ranty that covers the media upon which the Software is embed­ded for a period of 30 days from receipt of the product. Under
this warranty policy Datron’s sole obligation shall be to
replace or repair, at Datron’s discretion, any such media that in
Datron’s opinion proves defective.
The user is obligated to provide Datron with a detailed
description of possible defects along with sample material
such that Datron can reproduce the identified defects.
By receipt and use, user (licensee) acknowledges that
certain software developed or distributed by Datron is
controlled by one or more governmental agencies. The
user (licensee) herewith acknowledges they will take all
necessary actions to comply with applicable regulations
concerning the use of licensed software. Further, Datron
is under no obligation to supply source code or documentation
of its software for any reason.
Datron makes no representation, express or implied, with
respect to any Software licensed under this document as to its
fitness for any particular purpose or intended use.
Furthermore, Datron shall have no liability under this
agreement for any incidental, special, or consequential
damages arising out of the use of any supplied software
programs. Datron reserves the right to make periodic
changes in it’s software for any purpose without any
obligation to notify users.

One Year Limited Warranty and Remedies

Datron warrants that its equipment is free from defects in
design, materials, and workmanship for a period of 12
months from the date of installation of the equipment,
but in no event later than 15 months from the date of
shipment. If the equipment does not provide satisfactory
service due to defects covered by this warranty, Datron
will, at its option, replace or repair the equipment free of
charge.
Should it be impractical to return the equipment for
repair, Datron will provide replacements for defective
parts contained in the equipment for a period of 12
months from the date of installation of the equipment,
but in no event later than 15 months from the date of
shipment.
This warranty is limited to the original purchaser and is
not transferable. Repair service performed by Datron is
warranted for the balance of the original warranty or 90
days, whichever is longer.

Exclusive Warranty: There are no other warranties
beyond the warranty as contained herein. No agent,
employee, or representative of Datron has any authority
to bind Datron to any affirmation, representation, or warranty
concerning the equipment or its parts that is not in
conformity with the warranties contained herein.
EXCEPT AS EXPRESSLY SET FORTH ABOVE, NO
OTHER WARRANTIES, EITHER EXPRESS OR
IMPLIED, ARE MADE WITH RESPECT TO THE
EQUIPMENT OR THE PARTS CONTAINED

PRC1077-MSOP iii

THEREIN, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE, AND
DATRON EXPRESSLY DISCLAIMS ALL WARRANTIES
NOT STATED HEREIN.
Limitations of Warranty: This warranty does not
cover:
Physical damage to the equipment or its parts that does
not involve defects in design, material, or workmanship,
including damage by impact, liquids, temperature, or
gases.
Damage to the equipment or its parts caused by lightning,
static discharge, voltage transients, or application
of incorrect supply voltages.
Defects or failures caused by unauthorized attempts to
repair or modify the equipment.
Defects or failures caused by Buyer abuse or misuse.
Return of Equipment - Domestic: To obtain performance
of any obligation under this warranty, the equipment
must be returned freight prepaid to the Technical
Support Services. Datron World Communications Inc.,
3030 Enterprise Court, Vista, California 92081. The
equipment must be packed securely. Datron shall not be
responsible for any damage incurred in transit. A letter
containing the following information must be included
with the equipment.
a. Model, serial number, and date of installation.
b. Name of dealer or supplier of the equipment.
c. Detailed explanation of problem.
d. Return shipping instructions.
e. Telephone or fax number where Buyer may be contacted.
Datron will return the equipment prepaid by United Parcel
Service, Parcel Post, or truck. If alternate shipping is
specified by Buyer, freight charges will be made collect.
Return of Equipment - International: Contact Datron or
your local Representative for specific instructions. Do
not return equipment without authorization. It is usually
not possible to clear equipment through U.S. Customs
without the correct documentation. If equipment is
returned without authorization, Buyer is responsible for
all taxes, customs duties, clearance charges, and other
associated costs.
Parts Replacement: The following instructions for the
supply of replacement parts must be followed:
a. Return the parts prepaid to “Parts Replacement”
Datron World Communications Inc., 3030 Enterprise
Court, Vista, California 92081; and
b. Include a letter with the following information:

1. Part number

2. Serial number and model of equipment

3. Date of installation
Parts returned without this information will not be
replaced. In the event of a dispute over the age of the
replacement part, components date-coded over 24
months previously will be considered out of warranty.
Remedies: Buyer’s sole remedies and the entire liability
of Datron are set forth above. In no event will Datron be
liable to Buyer or any other person for any damages,
including any incidental or consequential damages,

expenses, lost profits, lost savings, or other damages
arising out of use of or inability to use the equipment.
1/95

Safety Considerations

This product and manual must be thoroughly understood
before attempting installation and operation. To do so
without proper knowledge can result in equipment failure
and bodily injury.
Caution: Before applying ac power, be sure that the
equipment has be properly configured for the available
line voltage. Attempted operation at the wrong voltage
can result in damage and voids the warranty. See the
manuals section on installation. DO NOT operate equipment
with cover removed.
Earth Ground: All Datron products are supplied with a
standard, 3-wire, grounded ac plug. DO NOT attempt to
disable the ground terminal by using 2-wire adapters of
any type. Any disconnection of the equipment ground
causes a potential shock hazard that could result in personal
injury. DO NOT operate any equipment until a suitable ground
has been established. Consult the manual section on ground­ing.
Servicing: Trained personnel should only carry out servicing.
To avoid electric shock, DO NOT open the case
unless qualified to do so.
Various measurements and adjustments described in this man­ual are performed in ac power applied and the protective
covers removed. Capacitors (particularly the
large power supply electrolytics) can remain charged for
a considerable time after the unit has been shut off. Use
particular care when working around them, as a short circuit
can release sufficient energy to cause damage to the equipment
and possible injury.
To protect against fire hazard, always replace line fuses
with ones of the same current rating and type (normal
delay, slow-blow, etc.). DO NOT use higher value
replacements in an attempt to prevent fuse failure. If
fuses are failing repeatedly this indicates a probable
defect in the equipment that needs attention.
Use only genuine Datron factory parts for full performance
and safety of this product.

Made in the USA

iv PRC1077-MSOP

CONTENTS

Chapter 1: Introduction

The PRC1077 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Chapter 2: Installation

Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Location Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Manpack Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Figure 2-1. BB-LA6 Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Figure 2-2. Manpack Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Figure 2-3. Manpack Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Figure 2-4. AT-892/U Antenna Orientation in Various User Positions . . . . . . . . . . . . . 2-7

Mobile Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Figure 2-5. Typical 5W 24 Vdc Mobile System with MT-1077-24 Adapter . . . . . . . . . 2-8

Figure 2-6. 5W 24 Vdc Mobile System with OA3633/VRC Adapter . . . . . . . . . . . . . 2-10

Figure 2-7. 50W 24 Vdc Mobile System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Figure 2-8. 50W 12 Vdc Mobile System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Fixed Base Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Figure 2-9. 5W Fixed Base System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Figure 2-10. 50W Fixed Base System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Battery Charger Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Figure 2-11. PRC-PS Power Supply/Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Figure 2-12. PRC-BC4 Multiple Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Figure 2-13. PRC-HC-30 Hand Crank Generator with Battery Installed. . . . . . . . . . . 2-21

Figure 2-14. PRC-HC-30 Hand Crank Generator with Battery Connected Directly . . 2-22

Figure 2-15. PRC-SPU-10 Solar Power Generator with Battery Installed . . . . . . . . . . 2-22

Figure 2-16. PRC-SPU-10 Solar Power Generator with Battery Connected Directly . 2-23

Chapter 3: Operation

Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Figure 3-1. Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Settings, Indications and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Presetting Channel Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Jamming Recognition and Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Radio Set Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Voice Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Chapter 4: Maintenance

Preventative Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Figure 4-1. PRC1077 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

PRC1077-MSOP v

Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Appendix A: Radio Relay and Repeaters

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Radio Relay Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Repeater Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Radio Relay Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Dedicated Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

PRC1077 Repeater Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Figure A-1. Frequency Interference Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Figure A-2. Transceiver Connections - Relay System . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

vi PRC1077-MSOP

CHAPTER 1

INTRODUCTION

The PRC1077

The PRC1077 Radio Set is a short-range, rugged, compact, VHF/FM
transceiver designed as a drop-in replacement for the military VHF AN/PRC-77
radio. The PRC1077 has several improvements over the PRC-77 including
higher output power, an extended frequency range with increased granularity in
frequency spacing, as well as electronic tuning, with 10 preset channels. The
PRC1077 radio set can also be integrated into the VRC-64 and GRC-160
vehicular radio systems.

The PRC1077 can be configured for manpack, mobile, and base applications in
5W or 50W output levels. The PRC1077 is supported with a full line of
accessories such as:

• Antennas

• Retransmission cabling

• Audio accessories

• Extended control accessories and software

• Transmission encryption module

• Batteries and battery charging equipment

• Backpacks

• Mounting hardware for mobile and base applications

PRC1077-MSOP 1-1

1: Introduction

Technical Specifications

Note: Specifications are subject to change with notice or obligation.

Characteristic Specification

General

Frequency range 30 to 87.975 MHz

Available channels 2,320 channels with 25kHz frequency spacing

Preset channels 10 programmable memory channels

Channel programming Front panel

Modes FM; simplex, semi-duplex

Input power requirements 11 Vdc to 15 Vdc

Battery pack BB-LA6 sealed lead calcium; BA5598/U Lithium (case holds

spare battery)

Battery life 30 hours at 9:1 duty cycle (5W Tx) using BB-LA6 battery pack

Antennas 3 ft. tape and 10 ft. whip; 50 ohm antenna

Antenna port BNC for 50 ohm broadband antennas or for connection to

external amplifier; whip antenna port

Display Backlit, multi-function custom LED

Mechanical

Size 11.1 in. x 4.1 in. x 9.25 in. (28.2 cm x 10.5 cm x 23.5 cm);

W x H x D, including battery pack

Weight 9.7 lbs (4.4 kg), w/o battery pack; BB-LA6 pack is 2 lbs (0.9kg)

Package OD, sealed, including battery pack

Environmental

Temperature –40 to +60° C

Shock, vibration, humidity,

Per MIL-STD-810

fungus, altitude

Transmitter

RF power output 0.5W, 2W, or 5W (selectable)

Duty cycle Continuous service

Harmonics –50 dB

Receiver

Sensitivity 10 dB SINAD for 0.3 µV input

Squelch 150 Hz tone, carrier; selectable

Audio 500 mW into 16 ohms; 50 mW at 150 ohms; 0 dBm into

1-2 PRC1077-MSOP

600 ohms

1: Introduction

Characteristic Specification

Accessories

Amplifier AM1077, 50W RF unit

Mobile mount MT1077, +12 Vdc or +24 Vdc versions; mounts to any vehicle

Power supply PS1077 for portable use; UPF7000A-28 or UPF7000A-12 for

base station

Chargers PRC-BC4 (4-unit charger), PRC-PS (power supply or 2-unit

charger), PRC-SPU-10 (solar power unit), PRC-HC-30 (hand
crank generator)

Converter AM1077CONV, 12 Vdc to 28 Vdc

PRC1077-MSOP 1-3

CHAPTER 2

INSTALLATION

Unpacking

The PRC1077 is shipped in a heavy-duty corrugated cardboard carton with the
accessories packed in a separate carton. Do not discard the cartons and packing
materials in case the equipment needs to be reshipped.

Inspect the equipment for possible damage during shipment. Check all
accessories against the packing list.

Location Considerations

Manpack and
Fixed Base
Applications

The PRC1077 operates at high frequencies with low power so the equipment
location can greatly affect its operating range. Typically, if the other station can
be seen (line of sight), the PRC1077 can provide good communication. An
intervening hill or a tall building may hamper or prevent contact with other
stations. Valleys and densely wooded areas also impair communication quality.
Positioning the transceiver on a hilltop or a tower increases the operating range.
If possible, avoid locations near a source of electrical interference, such as
power or telephone lines, radar sets, and hospitals.

Manpack Installation

The PRC1077 manpack configuration includes the following equipment:

Part Number Description

PRC1077 VHF/FM Transceiver, 30 to 87.975 MHz, 5/50W

AT-892/U Whip antenna, 1.2m (3.9 ft.), flexible

AT-271A/U Whip antenna, 3m (10 ft.), with AB591/U flexible base

BB-LA6 Battery, rechargeable, 6 AH

LC-2 Lightweight tubular backpack

MHS Military Handset, H-189/U-type or H-250/U military

PRC1077-MSOP 2-1

style

2: Installation

Installing the
Battery

The PRC1077 uses the BB-LA6 sealed lead-calcium rechargeable battery. The
BB-LA6 battery is rated at 6.0 AH (maximum), providing the PRC1077 with
a mission life of approximately 30 hours when operating at a 9:1 (Rx:Tx) duty
cycle at 5W output power.

To install the BB-LA6 battery into the PRC1077 (refer to the figure on page

2-3):

1. Stand the PRC1077 on a level surface with the front panel facing down.

2. Pull the two clamps out from the transceiver case to release and push
down on the battery case.

3. Remove the battery box.

4. Check the battery connector. If it is damaged, the transceiver must be
repaired. Make sure the pressure test screw and relief valve are tight.

5. Position the battery so the connectors are aligned, then mate the
connectors.

6. Install the battery case, latch the clamps on the battery case hook, then
push the clamps in towards the case.

CAUTION: Remove the battery when the transceiver is not in use
for more than one day.

2-2 PRC1077-MSOP

x

Radio
Connector

Transceiver
Case

Battery

Clamp

Pressure
Test S c r e w

2: Installation

lnstalling the
Manpack
Harness

Captive
Screws

Front Panel
Guard

Pressure
Relief
Val ve

Battery Bo

Figure 2-1. BB-LA6 Battery Installation

CAUTION: Battery power should be between 12.5 Vdc and 15 Vdc,
with positive (+) applied to the B terminal on the battery
connector (at the transceiver back) and negative (–) applied to the
A terminal. To avoid serious damage to the transceiver, do not
change the battery polarity.

The PRC1077 manpack system includes the LC-2 or ST-138 backpack. The
LC-2 backpack is a lightweight tubular carrying frame with canvas straps.

To mount the transceiver to the harness (refer to the figure on page 2-5):

1. Place the harness flat on a level surface with the metal braces facing up.

2. Place the transceiver on the harness with the panel toward the top and the
battery case resting on the metal braces.

3. Fasten the transceiver to the harness with the two retaining straps; feed
the metal-tipped strap from below, through the center slot on the buckle,
and then down through the end slot on the buckle.

4. Clip the CW-503 canvas bag to the harness.

PRC1077-MSOP 2-3

2: Installation

S

)

p

To mount the transceiver and harness on the operator:

1. Install either a AT-892/U or AT-271A/U antenna.

2. Connect the handset to one of the audio connectors on the transceiver
front panel.

3. Place the harness, with the transceiver attached, on the operator's back.
Place the shoulder straps over the operator's shoulders.

4. Feed the end of the lower strap through the right shoulder strap ring. Feed
the metal tip of the strap from below, through the center slot in the buckle,
then down through the end slot.

5. Install the left should strap in a similar manner to Step 4.

6. Hook the two belt straps to the combat belt.

houlder strap ring (2

Shoulder straps

Cotton Duck
Bag

Shoulder
Strap
Buckle (2)

Transceiver

Retaining
Straps

Retaining Stra
Buckles (2)

Lower
Strap (2)

Metal Braces

Belt Strap (2)

2-4 PRC1077-MSOP

Figure 2-2. Manpack Components