Korean War era AM Sets

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     LV 80





After WW II,

  GRC 9

is the first short wave radio introduced in NATO. It is not Transceiver, but transmitter and receiver are built in separate modules and must be tuned separately.


The system GRC-9 can operate with every AM station, which operates between 2 and 12 MHz. It can be used as stand-alone device or within group stations.

Frequency ranges:

2... 12 MHz, AM with 3 frequency ranges:

Range 1: 6.6... 12 MHz
Range 2: 3.6... 6.6 MHz
Range 3: 2.0... 3.6 MHz


Technical data:
Type of the signal transmission:
Carrier palpation (A1)
Palpation of the modulated carrier (a2)
Phonie (A3)
Transmitting power: due to TDv.5820/3-01 u. TM 11-263
with DY-88/ GRC9 high: 7 Watt Fonie, 15 Watt CW
    low: 1 Watt Fonie, 5 Watt CW. "
with Hand-generator GN-58-A: High: 3,6 W Fonie, 10 W CW
    low: 1,2 Watt Fonie, 5 Watt CW.
Phonie: 30 km
CW: 50 km.
Number of tubes:
Transmitter: 5 piece
Receiver: 7 piece
Built-in xtal oscillator
Power consumption:
13.2 A at 12 V.
Complete Set GRC-9 (see below):
Transmitter/Receiver RT-77 GRC 9; Mounting frame MT350; Hand generator GN-58-a; Power supply (transformer) DY-88; Bag BG-174 for antenna equipment; Bag BG-172 for other accessories (antennas, morse key, small articles, tube box etc..); Mast base MP-65-a.