AN/PRC-77 Portable Transceiver - Technical Characteristics

Technical Characteristics

The AN/PRC 77 consists of the RT-841 transceiver and minor components. It can provide secure voice (X-mode) transmission with the TSEC/KY-57 voice encryption device, but is not compatible with the SINCGARS frequency hopping mode.

Channels: 920 channels across two bands using 50 kHz steps
Frequency Ranges: 30.00 to 52.95 MHz (Low Channel);
53.00 to 75.95 MHz (High Channel)
Estimated Range: 8 km (5 mi) Dependent on conditions
Power Output: 1.5 W to 2.0 W ttt
Power Source: BA-4386/U, BA-398/U or BA-55984
or a nickel-cadmium rechargeable battery cassette.
Antenna: AT-271A/PRC 10 ft (3.0 m) multi-section whip "Static" Whip-a-way, or
AT-892/PRL-24 3 ft semi-rigid steel tape "Bush-whip",
Type of Service: 30K0F3E
Manpack field radio
Weight: 13.75 lb (6.2 kg)
Note: A modified version of the AN/PRC-77 is available and is designated
AN/PRC-1177. This version has been enhanced to allow a smaller
channel step of 25 kHz and to reduce voice bandwidth to 6 kHz. These
features combine to double the number of available channels to 1840.

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