II 66 (1) air-to-ground progress and position reporting, (2) air-to-air and cloud sampling control, (3) air-to-air homing,.() radar for navigation and positioning, (5) identification equipment for control and positioning, and (6) dual UHF equipment in aircraft which may be designated for air drops and in all B-57 sampling aircraft, Test Base Unit was to be responsible for providing fleld maintenance shops and service for airborne communications and electronics equipment, for installing and maintaining a fire crash radio commnications system, and for instelling and maintaining a field maintenance expediter communi cations system (as a part of the Maintenanca Control Unit). > The responsibilities of the Test Services Unit, as outlined in the operation plan, were many and varied, Among these responsibilities were the installation, maintenance, andqeration of the Air rorce portion of facilities associated with the Joint Relay Center at Eniwetok Atoll, of the Weather Central facilities on Parry Island (ELMER) and Base Weather facilities on Eniwetok Island (FRED), of the control tower facilities at Eniwetok and Bikini Atolls, and of the Task Group 7, Communications Center in Building 90 at FRED, The unit was also directed to install and operate (1) one GCA and one TACAN unit at Entiwetok, (2) low frequency homing beacons at iniwetok, Bikini, Kapingamarangi, Kusaie, and Utirlk, and (3) UHF and VHF Lirection Finders at Eniwetok, Cther responsibilities AL included the provision and operation of a radio telegraph net between

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