TM 11-5820-890-20-1
CHAPTER 1
Subject
INTRODUCTION
Section
Page
General lnformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
1 - 1
Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
II
1 - 8
Principles of Maintenance Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
III
1 - 1 9
Preparation for Storage or Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IV
1-21
SECTION I
1.1.
a.
b.
C.
GENERAL INFORMATION
SCOPE.
Type of Manual. This is a unit maintenance manual. It contains information required to maintain the
RT-1523 series radios and/or ancillary equipment.
Model Numbers and Equipment Names.
Radio Sets Using
RT-1523 Series
AN/PRC-119A
AN/PRC-119D
AN/PRC-119F
AN/VRC-87A
AN/VRC-87D
AN/VRC-87F
AN/VRC-88A
AN/VRC-88D
AN/VRC-88F
AN/VRC-89A
AN/VRC-89D
AN/VRC-89F
AN/VRC-90A
AN/VRC-90D
AN/VRC-90F
AN/VRC-91A
AN/VRC-91D
AN/VRC-91F
AN/VRC92A
AN/VRC-92D
AN/VRC-92F
Common Name
Manpack radio
Manpack radio
Manpack radio
Short range radio
Short range radio
Short range radio
Short range radio with dismount equipment
Short range radio with dismount equipment
Short range radio with dismount equipment
Short range and long range radio
Short range and long range radio
Short range and long range radio
Long range radio
Long range radio
Long range radio
Short range and long range radio with dismount equipment
Short range and long range radio with dismount equipment
Short range and long range radio with dismount equipment
Dual long range radio
Dual long range radio
Dual long range radio
Purpose and Use of Equipment. All types of SINCGARS ICOM radio sets use the RT-1523 series as
the basic receiver-transmitter. They can operate in single channel (SC) mode or in the frequency
hopping (FH) mode. In either mode the RT can receive and transmit voice, and analog or digital data.
The RT has a self-test function, retransmit capabilities, and can be remotely controlled. External
COMSEC equipment is not required when using the RT-1523 series. Secure communications functions
are built into the RT
l - l
