mbtateiee ios 5omee. ae. Operation Plan cTG 19a 19d 19¢ 194 19e 19f 19¢ Ved No, 1-53 Refer CINCPAC serial 405 dated 18 December, 1952 for SAR - Communications Pac§fic, «AVR's at Eniwetok and Bikini maintain continuous telephone er VHF circuit with Control Tewers, All stations activate channels §9e-19g as directed by CTIG 7,3, CTG 7,4 or other command assisting 4n an SaR incident, AOC Eniwetok will guard 3314 kes voice and be prepnred to activate channels 19e-19g, Original emergency transmission should be made on the assigned air-zground frequency or frequency of last communication contact; if no acknowledgement is received, use any of the SAR chennels, oF any other frequency as neces~ gary to esteblish communications, Ships assigned to guerd 8364 kes CW shift to 8364 kes voice when in receipt of steady GW note on this fre~ 20a 20d 20c All 16 7,3 ships and aircraft within VHP yvofice range of time broadcast announcer should make every effort to insure receiption of time broadcast and retransmission over ships public announcing systems, Cireuit tests will be announced, Procedure, including Radsafe instruc— tions and inform-tion, will be distributed, Motorola and VHF broad~ cest will originate in firing bunker on Enyu for Bikini shots and in control room, Parry Island, for Eniwetok shot, 1G 7,3 will make rebroad- cast from BA&TROXO on UF for ships not equipped with Motorola or VHF, ISD ts responsible for rebroadcast, as necessary to TG 7,3 Boat Pool, BAYROKO CIC will insure TG 7,3 UHF equipped aircraft on missions shift to UHF time broadcast, Shot times will not be broadcast on any frequency below 126,18 mes, ~~ Channel 21 consists of AN/FGC5 electronic multiplex circuit 2la carrying the administrative SIGTOT-SAMSON duplex cirenit between the ESTES and TG 7,2 Joint Communication Center, Eniwetok end the duplex 21b 2lc 21d Z2le 21f weather RATT between the ESTES and the TG 7,4 Werther Central, Eniwetok, In the event of channel] failure: (a) The duplex weather RATT will be reestablished on Channel 22,7 (bo) The SIGTOT-~SMSON circuit will be reestablished utilizing ehannal 21 frequencies but eliminating use of AN/FGC~5, Channel 21 will be manned continuously during the operetional phase of CASTLE, ESTES employ AN/URT-3 trensmitter with e standby trensmittér ready for eperating, ESTES coordinate preperation of de- tailed chennel opercnting instructions with appropriate TG 7,2 and TG 7,4 communicetions personnel, Eniwetek, ~—~— ow wee eee ere mee