The following report on radio requirements was originally published in Tactical and Technical Trends, No. 1, June 18, 1942. [DISCLAIMER: The following text is taken from the U.S. War Department publication Tactical and Technical Trends. As with all wartime intelligence information, data may be incomplete or inaccurate. No attempt has been made to update or correct the text. Any views or opinions expressed do not necessarily represent those of the website.]

DESCRIPTION OF RADIO NEEDED IN ICELAND Recommendations have been made as to the need for numerous radios of the following type: battery operated, voice range of 50 miles, operational simplicity (desire transceiver type), 4 bands crystal controlled, 1500-440 kilocycles frequency range, powered by twelve or six volt batteries, vertical type antennae preferred like BC 69 J. (Hallicrafter at - 12 - A modified), SCR 543 type is recommended. SCR 281 with BC 89 A, if modified, is desirable for use with battery. Motor generators (Jannette) of six and twelve volts have previously been furnished with SCR 281. The BC 69 A Antenna is suggested. Operation by gasoline is considered undesirable owing to the need of positive quick starting action for antiaircraft intelligence system. The SCR 281 or SCR 543 with BC 69 A unit and two battery sets furnished per radio is recommended, with one gasoline powered charging set furnished for each radio. Each set should have spare parts kit, and crystals for set. The frequency is to be determined and ordered later. (J-147, Iceland)

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