AN~TRC-8

Radio Set AN/TRC-8 (XC-3) consists of an FM (frequency modulated) Radio Receiver R-48/TRC-8 (XC-3), an FM Radio Transmitter T-30/TRC-8 (XC-3), Power Pack PP-1l5/TRC-8 (XC-3), two Antenna Assemblies AS-52/TRC-8 (XC-3), two 40-foot Antenna Supports AB-48/TRC-8 (XC-3), one Power Unit PE-75-( ), and spare parts for maintenance. This equipment is intended for point-to-point or radio-relay application to provide either single or multichannel communication in both directions simultaneously. Spare components are not included in Radio Set AN/TRC-8 (XC-3) as it is not intended for continuous uninterrupted operation. The reliable range is 25 miles over flat terrain. Satisfactory communication can be attained as far as 100 miles when advantage is taken of high points in the terrain and when a line-of-sight path exists between transmitter and receiver. The equipment is solidly built and is intended for use as a fixed field station and not for mobile operation. All components are transportable in a standard military 3/4-ton truck or 1-ton trailer. The radio set may be installed by a crew of four men in approximately 1 hour after arrival at the operating site if the equipment has previously been removed from any packing cases. It has been designed with excellent frequency stability, sensitivity, and all operating characteristics necessary for long, reliable service under conditions of relative humidity up to 95 percent and temperature variations from 40C to +60C.

TECHNICAL CHARACTERISTICS

Radio Receiver R-48/TRC-8 (XC-31)

Receiver type

superheterodyne Frequency range 230 to 250 mc

Type of modulation Received

FM +- 100 kc deviation

Intermediate frequency

30 mc

Audio bandwidth

200 to 12,000 cps

Frequency control

tunable resonant line (no crystal)

Output impedance (high fidelity)

500 ohms

Power input

115 or 230 volts, 50-60 cycles, 120 watts

Power supply

self-contained

Number of tubes 15

Radio Transmitter T-30/TRC-8 (XC-31)

Frequency range

230 to 250 mc

Type of modulation

FM, ± 100-kc deviation (100% modulation)

Power output

12 watts

Type of transmission

voice or multichannel telephone, telegraph, or facsimile

Operating range

25 to 100 miles

Frequency control

Tunable resonant line (no crystal)

Power input

115 or 230 volts, 50- 60 cycles, 350 watts

Number of tubes

8 (6 in transmitter, 2 in power pack)

Antenna Assembly AS-52/TRC-8 (XC-3)

Type of antenna

half-wave dipole with 90' corner reflector; supported by 40-foot sectional mast

Antenna beam width

80'

Reference Files

TM 11-618

Radio Set

AN/TRC-8 (XC-3)

Radio Terminal Set

AN/TRC-11 (XC-3)

Radio Relay Set

AN/TRC-12 (XC-3)

19 March 1945