bnen sé ' veo - - - ome Conmunt catone COT? SEVEN Wa. 3-63 ° TE : ‘ G.: Aeargmeent of C-mmunicationResponsibilities a Mission, J-5 Division, Headquarters,JTF OVEN (1) Coordinate overall teek force communications end electro- mice activities (2) Assign and control all radio frequencies, call signs, addrese groups and routing indicators. (4) Maintain operational control of the commnications security monitoring unit. sions , Prepare for CJTF SEVEN reports of security viola- (4) Cperate communications center and crypto facilities at Has, JTF SEVEX, Washington 25, D ¢ fs) Contrad utilization of teleconferencing facilities in the ENTWETOK BIKINI area (6) Prepare Headquarters, JTP SEVEN telephone directory. (7) Prepare and distribute COIs (Communication Operation Instructicns). (8) Provide for operation and maintenance of terminal VHF ci- phony facalic‘es (USS ESTES Pere Eayu 4 (9) Control distribution of avaslable SIGTOT-SAMSON equipment and tapes to meet operatiorai requirements of the task force. (10) Maintain a transmission security training prograx for all ueers of voice radio facilicies and a message drafter improvement program to insure wort efficient use cf limited operational comm. nication faciiitiies. (12) Pre, re and distribute to all task groups the Operation CASTLE Joint Authentication System (AFSAL $369). b Sttentific Task Group (167.3) | (1) Operate and maintain special electronic and comsunications equipment required by the Scientific Task Group; this te include EG. & G. terminal equipment at PARRY and ENYU for the T 7.1 HF duplex voice and RATT circuits. (2) Initiate voice-time broadcast for all elewents of the task force, \ Army Task Group (%]7.2) | (1) Operate and maintain relay center, ENIWETOK. (2) Operate and maintain communications centers for Has, JTF SEVEN (PARRY ISLAND), Hqs, TG 7.2 (ENIWETOK ISLAND) and in support of AEC operations at BIKINI ATOLL / (3) Provide crypto guard facilities for Has, JTF SEVEN, TC 7.1, 7.2, 7.6, 7.5 and for other than intra TC 7.3 (ashore) traffic. ———, c.