Modern Era FM Backpack Portables
DH4PY

To the picture gallery

 

 

 

      AN/GRM-55
  PRC-77
      PRC-77/25

 

 

 

 

 

All American Backpack- Radios from their beginning (1938) till 1990 are in the collection. The chart can be used as quick navigation between the radios.

TBY

SCR-194/ BC-222 (BC-322)

SCR-300/ BC-1000

RT-174/ PRC-8/9/10//A

US Backpacks

RT-70/PRC-16

RT-505/ PRC-25

RT-841/ PRC-77

RT-1439/ PRC-119 RT-1523/PRC-119

  PRC-77

is a solid state VHF transceiver for short distances, following PRC-25.
It can be used as manpack, portable and vehicular radio. All accessories of PRC-25 are compatible to PRC-77.

It is still in use in the following countries:

  • The Norwegian army is the only army still using the AN/PRC-77 as a main source of radio communication.
  • The Austrian Army still uses the PRC-66 for training cadets in radio communications.
  • The Swedish Defence force uses the radio system.
  • The Pakistan Army has also used the set for the past 25+ years.
  • The Finnish Army uses this radio as a "battalion radio".

    Instead of the original short antenna AT-892 and the long antenna
    AT-271 ; a single combi antenna can be used:
    AS-2109
    The Swiss Army used the PRC-77 and called it SE-227
    The Museum hosts two Swiss prototype voice scramblers for SE-227:

    "Gretacoder 210". Click Pic for description.

    Gretacoder 210
    <= [ Click ]
    Also from Switzerland and also meant for the SE-227 is:
    Test set T 114

    T 114
    [ < click ]

    See the picture gallery for operation.
    Frequency range:
    30 .. 75.95 MHz in 2 bands:
    30 .. 52.95 MHz and
    53 .. 75.95 MHz.

     

    Technical data:
    Modulation:
    FM
    Channel spacing:
    50 KHz.
    Channels:
    920.
    HF- output:
    1,5 .. 2 watt.
    Power consumption:
    transmitting: 780 mA
    receiving: 60 mA.
    Range:
    up to 8 km.
    Antennas:
    short: AT892/PRC-77; 3 Fuß long.
    long: AT271A/PRC; 10 Fuß long.
    Year of issue:
    1968.