2 t - “~ 4} —™, ~ 8 APPENDIX : - ANNEX 5 . OPERATIONS ORDER NO. 1-54 . COMMUNICATIONS . _ 1, GENERAL: QOMMUNTCATIONS SECURITY 9° |” rere The purpose of this appendix is to set forth the mission, functions, responsibilities» and organization of the communications security: program. } 2. Ly GUIDING PRINCIPLES: a. All low, medium and high frequency radio circuits are subject to constant intercept from fixed land positions or possibly from ships, aircraft or submarines. In the same manner and under favorable | atmospheric conditions, VHF transmissions are Susceptible, to possible monitoringe - be No radio circuit or telephone circuit having a radio link is approved for transmission of classified information in the clear, _ ‘ 3} c, Ali TOP SECRET and RESTRICTED DATA traffic will be enciphered ; offline prior to transmission. . “d, Code names will not be assigned to individuals, The use of | personal names -on voice radio -tircuits is authorized, , . Qe “Al1 messages for transmission to addressees outside the BIKINI-ENIWETOK Operational Area will ‘be routed through the Joint Relay Center, ENIWETOK, except: ~ e. (1) “graffie between Comander, TG 74 and the Weather Island Detachments. E s : . (2) Unclassified traffic (i.e., weather, aircraft movement) ot -between AACS, KWAJALEIN and AACS Detachnent, ENIWETOK. Doe ‘} ve “_ (3) Intre~Task Group operational twatfic, (4) Emergency traffic which cannot be delivered to the Joint 1 meyer : - Relay Center because of circuit failure, - (5) Other traffic as directed by Comander, JTF SEVEN, . : ” £0 Radioteletypé facilities will be used in lieu of voice radio whenever practicable for communications security reasons. - ‘ "+ ~ Be “CO's (Commmications Operating Instructions) are published and issued by JTF SEVEN for the technical control and coordination of communication agencies throughout theeek Force. _COr's are directive in nature, © “ ay at ' ES , . ce he No cover or r deception plan is-0 be employed except for deception offered by the rehearsals and for such traffic security as is provided -. by the use of SIGTOT-SAMPSON equipment on RATT circuits, et° i. No requirenents for radio eilence are imposed on Task Group “ qaSK GROUP 7,4 “--iyew enn7 ey EO Bel, : “OPRS ORDER NO. inst; - flchttehenrciaecel