The MX-6707/VRC Antenna mast base and Automatic Antenna Tuner "ATU" operates over 30 to 76 MHz VHF range in 10 band segments. Automatic Tuning of any one of 10 segments automatically selected by a solenoid-driven switch in the matching unit. Solenoid is controlled from receiver-transmitter RT-246/VRC or RT-524/VRC, or from amplifier power supply OA-3633/GRC.
The MX-6707/VRC Antenna mast base is used with the following radio sets: AN/VRC-12 through AN/VRC-49, AN/VRC-53, AN/VRC 64, AN/VRC-65, AN/VRC-6550, and AN/GRC-160.
RECEIVER TRANSMITTER RT-66/GRC USED BASIC TESTEDWORKING CONDITION
Frequency range 20 - 28 MHz, VFO tuning, output 2 or 16 watts RF. Use with handset H-33*/PT or speaker LS-166/U. Different manuacturers in US, Germany and other countries. Used in most NATO armies.
ARMY RECEIVER RADIO R-392/URR USED BASIC TESTED WORKING CONDITION
Frequency Range: 0.5-32 MHz Operating Voltage: 24-28 VDC Size: (W*H*D): 283*293*365 mm Modes of Operation: AM/CW Current Drain: 3 Amps Max Bandwidth: 2, 4 and 8 KHz Impedance: 50 Ohms