TABLE 1-1. TECHNICAL CHARACTERISTICS

TM 11-5820-919-12

TABLE 1-1. TECHNICAL CHARACTERISTICS

Characteristic

Description

RADIO SET AN/PRC-104 (Radio Set)

Frequency Range

2.0000 to 29.9999 MHz in. 0.0001 MHz (100 Hz)

increments

(280,000 possible frequency settings)

+ 1 ppm for -51 F (-46 C) to +160 F (+710C) (+2 to 30

Hz of setting) from 2 to 30 MHz respectively.

Operating Modes

- Single sideband (selectable USB or LSB)

- Voice/cw (Morse or burst cw at 300 wpm)

- Data (FSK or DPSK up to 2400 bps) compatible with 75

baud military teletype

- Receive only (inhibits transmit operation)

Audio Input Impedance

150 ohms, -56 dbm (voice)

and Lexel

600 ohms, 0 dbm (data)

RF Output Power

20w (PEP), 0.25w (PEP) exciter output

RF Output Impedance

50-ohms, unbalanced. Output protected to infiniteVSWR

due to antenna short or open

Automatic to 1.5:1 VSWR (3 seconds tuning time,

typical)

Power Requirements

20 0 to 32.0 vdc; 3.5 amp at 24.0 vdc for transmit; 200 ma

for receive

Operating Temperature Range

-51 F (-46 C) to +160 F (+71 C)

Environmental

Meets applicable provisions of MIL-STD-810B

Mean Time Between Failure (NITBF)

2500 hours (demonstrated per MIL-STD-785)

Mean Time to Repair (MTTR)

15 minutes (module replacement)

Dimensions

12-1/2" x 10 1/2" x 2 5/8" (31.75 cm x 26.67 cm x 6.66 cm)

DxWxH

Weight

14 pounds (6.36 kg), including 4.8 AH silver-zinc battery

(without accessories).

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