RADIO SET SCR-624
Use. - Fighter control. Frequency range. - 100.0 to 156.0 megacycles. Power output. - 6 watts. Emission. - A3. Description. - Radio set SCR-624 is a complete very high frequency radio ground station especially designed for transportation by air. Radio set SCR-624 may be operated on any one of four crystal controlled channels within the 100-156 megacycle frequency range. Control facilities are provided so that the transmitter and receiver may be operated at the station, at a remote distance of 500 feet from the station, or at a remote distance of 2 miles. Channel selection can be made only at the station or at the 500-foot remote point of control, while only send-receive communication is possible at the 2-mile remote point. Land line telephone communication is possible between any two points of control by use of telephone EE-8-A. Tube complement: Radio transmitter BC-625:
Radio Receiver BC-624:
Rectifier RA-62:
Power supplies available:
Operating power required. - 320-325 watts. Frequency control. - Crystal (4 pre-set channels). Antenna. - Antenna AN-94 and the coaxial h-f cable are packed separately in order to afford suitable protection against damage to the antenna. Antenna AN-94 is a J-type antenna with a long (radiator) section and a short (matching) section mounted in a base for connection to the antenna mast. The long and short sections of the antenna are telescopic for adjusting the length to accommodate the transmitting frequency. Antenna AN-94 is supported on a 50-foot high tubular plywood mast. Weights, dimensions, and Army type numbers of principal equipment units Unit | Type No. | Dimensions | Weight | | Inches | Pounds Chest | CH-173-A | 34 x 16 3/4 x 13 3/4 | 134 Chest | CH-172-A | 34 x 16 3/4 x 13 3/4 | 205 Chest | CH-170-A | 47 1/4 x 14 3/8 x 6 3/8 | 41 Strap crate | | 11 x 16 1/2 x 12 | 152 Stays box | | 23 3/4 x 16 3/4 x 12 1/4 | 121 Spare parts box | | 27 x 13 1/2 x 11 | 45 Power unit | PE-75 | 36 x 19 1/2 x 26 1/2 | 322 Total | | | 1,020 REFERENCES:The information enclosed here is excerpted from:Catalogue of Naval Electronic Equipment-April 1946- NavShips 900,116.
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