~€Oh TIAL This inconvenience was overcome by the modification of the AOC communications console so that each controller could monitor any combination of all 12 UHF channels. The Air Operations Center at Bikini was originally established on board the USS BOXER. Later the BAOC fimction was transferred to the Destroyer USS BENNER, UHF. communications and the number of scopes available were sufficient but despite maximum cooperation and effort by Navy communications personnel, some important navigational aids such as TACAN and the homing beacon were either out for maintenance or unable to transmit due to interfering with scientific projects. The AOC and the BAOC utilized a hot line for coordinating aircraft movements and operations. This circuit was backed up by a high frequency circuit which was not completely satisfactory. The primary difficulty with this cireulf was due to the low power being radiated by the BOXER's high frequency transmitter, The telephone cable in the outside cable plant at Eniwetok was installed in a haphazard manner, The existing facilities were supplemented for each succeeding operation without a firm expansion plan, Also most all cables in use had at least 10% bad pairs as a result of electrolytic action. This shortage caused concern as to whether or not ample pairs would be available for the "hot line" telephones in the ACC and lines for control of “the remote UHF transmitters located at building 638. ‘It was necessary to modify 13 UHF transmitters to reduce the mumnber of telephone lines required prior to their becoming operational. After modifying the equipment, satisfactory communications were established. All requests for telephone service from units of Task Group 7.4 could not be fulfilled due to the non-availability of telephone cable pairs in some areas. , Coe: lee ter EDI BOE ELARL pe A new 202.97 cable programmed to run from Bldg. 90 - co 130 IAL: