HEADQUARTERS OH-58A, Technical Manual, Page: 117 / 292

TM 55-1520-228-10
Change 11 3-1
CHAPTER 3
AVIONICS
3-1. GENERAL.
This chapter contains all information relevant to the
avionics equipment installed in the Army Model
OH-58A/C helicopter. Included information consists of
description, technical characteristics, capability, loca-
tion of each major component and operation instruc-
tions for the system.
3-2. DELETED.
3-3. NOMENCLATURE AND COMMON
NAMES.
Avionics equipment installed in the helicopter, with com-
mon names, use, and operational range, is presented in
Table 3-1. Antenna locations are shown in figure 3-1.
3-4. DELETED.
3-5. POWER SUPPLY.
Refer to figure 2-18.
Table 3-1. Communications and Associated Electronics Equipment
NOMENCLATURE COMMON NAME USE RANGE
Communication
System Control
C-6533/ARC Communication
Control Interphone for pilot
and crew, Integrates
all communication
equipment Stations within helicopter.
Radio Set
AN/ARC-114FM FM Radio Set Two-way Voice
Communications in
frequency range of
30.00 to 75.95 MHz Line of sight
Radio Set
AN/ARC-114A
VHF-FM FM Radio Two-way Voice
Communications in
frequency range of
30.00 to 75.95 MHz Line of sight
Radio Set
AN/ARC-115 VHF-AM VHF Radio Set Two-way Voice
Communication in the
frequency range of
116.00 to 149.975 MHz Line of sight
Radio Set
AN/ARC-116 UHF-AM
(or AN/ARC-164) UHF Radio Set Two-way Voice
Communications in the
frequency range of
225.00 to 399.95 MHz Line of sight
Direction Finder/Set
AN/ARN-89 ADF Radio Range
Navigation and
position fixing
Automatic direction
finding and homing
in the frequency
range of 100 to
3,000 KHz 150 to 200 miles
average depending
on terrain
interference
noise