ne 20 ye ETT poe OPM.TIONS PLAN NO. 4-54 | oe mo eT 1, ” JOcMUNIGaATIONS | ; Se G@NERAL. PLDTIERS , te . T.SK GROUP 7,4, PROVISIONAL. Kirtland AF Base, New Mexico Fe te 15 June 1954 This annex prescribes the policies and responsibilities for installation, maintenance and operation of communications-electronia facilities in support of Air Force activities in the Pacific Proving Grounds (PPG) during the interim period following Operation CaSTIE 2, GUIDING PRINCIPLES a, No further full scale tests will be conducted in the Pacific Proving Grounds within one year of completion of Operation CASTLE, ~ b, Task Group 7,2 will provide commnications éupport. and - coordinate communications requirements for all elemerts of the Eniwetok Garrison Force; (1) ‘ (2) . It will provide crypto guard facilities for all Air Force activities in the Pacific Proving Grounds, | ~ It will operate and maintain a relay center, Eniwetok, with the following terminations: (a) ENIVETOK-US«RP£C Duplex RATT (1) (bd) ENI ™TOK-KWaJaLSIN NUK RATT (1), The 4930th Test Support Group will provide, operate and maintain terminal transmitting, receiving and mltiplex equirment and will allocate one channel to the Joint Relay Center, BNI'V"TOK, : c, (3) (c) Local teletype service to AACS Communications Cen- (d) Local teletype service to Tas't Group 7,2 and Task ter, ENIVETOK, Group 7.5 (Holmes and Narver), It will operate and maintain the ENI-T TOK Island tele=_ phone plant, All classified traffic will be encrypted off-line, in a arene machine or* tape system, prior tottransmission, “Major emphasis will be placed on the ‘proper"storage, maine tenance, sepeie and rehabilitation of all communications equipment and systems, oo oD e. Interim Communications Operating Instructions published and distributed by Headquarters; Joint Task Force SEVEN, will supplement “ instructions contained in this order. . on , a |.SK GROUP 7,4 “- OPRS Plat 4.54 AMDeer Da . ~ , ere " cf +” - peelassified pod Diz 5200.10