e e - ra‘ BEST AVAILABLE COPY cin 6 - €F @ e Communications CJTF SEVEN No. 3=53 (2) ArmySecurity Agency ASA) - will provide a communications security unit for monitoring task force circuits in the ENIWETOK -— ate wae ple sk is BIKINI area. wa toe (3) USAF Security Service - will provide special SSM-4 (SAMSON) synchronous mixer maintenance. personnel and equipment required for principal task force radioteletype circuits, (5) Major Relay Station (JHK), KWAJALEIN, M.ole ~ Will be the + (6) Comminication Center COPIA), LOS ALAMOS, NEW MEXICO = will provide an an alternaterelay facility for task force traffic d destined for ZI addressees, sy : ; (4) Primary Relay Station (UHP), OAHU, T.H. - will be the prin- principal relay facility for air task group traffic to and from the ENIWETOK-BIKINI area; will also provide an alternate ‘relay factiity for other task force traffic. ate ste a btamen, omtont tyes th, : rn mtcteles soe bbe ati. atatal ' cipal relayfacility for task force traffic, other than air task group, to and from the ENIWETOK~BIKINI area. 3. Guiding Principles . a. No radio circuit or telephone circuit having a radio link is approved for transmission of classified information in the clear. b. All TOP SECRET and RESTRICTED DATA traffic will be enciphered off-line prior to transmission. . oe 4 ¢. Code names will ‘not be assigned to individuals. The use of Per ce ‘sonal names on voice radio circuits is authorized. co, - . d. All messages for transmission to addressees “outside the ENIWETOK= . BIKINI operational area will be routed through the Joint ‘Relay Gene. : ter, ENIWETOK, except: - . | a 2 So See a (1) Unautthorized entry, ‘contact ‘and amplifyingreports “which may be transmitted over normal Navy circuits. us) EmERCENCY Oxf) Routine administrative messages not concerned with Operation CASTLE which may be transmitted over normal Navy circuits, ; (3) Traffic between CTG 7.3 and VP-29 Detachment, KWAJALEIN. (4) Traffic between CTG 7.4 and the weather island detachments. Sin teat a (5) Unclassified traffic (1.e., weather, aircraft movement) between AACS, KWAJALEIN and AACS Detachment, ENIWETOK. (6) Intra-task group operational traffic. ea a Tee tee eeS On not BR a see : Cle Relay-Centerbetause—cf-circultfailure: wet zs owen oe tt ee. ep re . Ted eh 7. TS 7.(@) Other traffic as directed by CUTF SEVEN. Commanders are respensible that comnunication security is ob- served at all times. L