AN/PRC-77

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AN-PRC-77 Manpack.png

Radio Set AN/PRC-77 is a man-pack, portable, frequency-modulated (fm) receiver-transmitter used to provide short-range, two-way, radio-telephone voice communication. Receiver-Transmitter, Radio RT-841/PRC-77 is also used as part of Radio Sets, AN/VRC-64 and AN/GRC-160 (TM 11-5820-498-12).


Technical Characteristics

Frequency range
Low band
30.00 to 52.95 MHz ±3.5 kHz.
High band
53.00 to 75.95 MHz ±3.5 kHz.
Number of channels
920
Channel spacing
50 kHz
Types of transmission and reception
Transmission
Voice (300 to 3,500 Hz) and 150 Hz squelch tone
Reception
Voice (no squelch) or voice and 150 Hz squelch tone
Security or digital data equipment
Wide band (10 to 20,000 Hz) without 150 Hz squelch tone
Transmission and reception
power requirements:
Transmission
12.5 to 15 vdc,780 ma average
Reception
12.5 to 115vdc, 60MA average
Type of modulation
Frequency.
Transmitter output power
1.0 to 4.0 W
Type of squelch
Tone operated by 150 Hz signal
Distance range
5 mi (8 km) (varies with conditions)

Images

AN-PRC-77 Components.png

AN-PRC-77 Front Panel.png

Additional Files

Adobe PDF icon.png TM 11-5820-667-12

OPERATOR’S AND ORGANIZATIONAL MAINTENANCE MANUAL
RADIO SET
AN/PRC-77 (NSN 5820-00-930-3724)
(Including Receiver-Transmitter, Radio RT-841 /PRC-77) (NSN 5820-00-930-3725)
1 January 1987


Adobe PDF icon.png TM 11-5820-667-12HR

HAND RECEIPT MANUAL
COVERIN6 END lTEM/COMPONENTS OF END ITEM (COEI), BASIC ISSUE ITEMS (BII),
ADDITIONAL AUTHORIZATION LISTS (AAL) FOR
RADIO SET
AN/PRC-77 (NSN 5820-00-930-3724)
December 1978


Adobe PDF icon.png TM 11-5820-667-20P

ORGANIZATIONAL MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST
RADIO SET
AN/PRC-77 (NSN 5820-00-930-3724)
15 August 1989


Adobe PDF icon.png TM 11-5820-667-34P

DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
REPAIR P ARTS AND SPECIAL TOOLS LISTS
(INCLUDING DEPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS)
Radio Set
AN/PRC-77 (NSN 5820-00-930-3724)
15 August 1989


Adobe PDF icon.png TM 11-5820-667-35.pdf

DIRECT SUPPORT, GENERAL SUPPORT, AND DEPOT MAINTENANCE MANUAL
RADIO SET
AN/PRC-77 (NSN 5820-00-930-3724)
February 1968
Original Scan


Adobe PDF icon.png PRC-77 Interconnection Diagram


Adobe PDF icon.png PRC-77 Mechanism Exploded Views


Adobe PDF icon.png EMP Hardening Investigation of the PRC-77 Radio Set

J.S. Seregelyi, C. Gardener, J.A. Walsh and R. Apps
Defence Research Establishment Ottowa
February 1993
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