Headquarters Task Group 702
Joint Task Foree SEVEN
APO 187 c/o Postmaster
San Francisco, California
22 December 1954
Annex E to C1 7.2 Operation Plan No. 3-53
COMMUNICATIONS
1, GENERAL:
a, Purpose: This annex establishes the communication volicies
of Task Group 7e2 in conformance with Annex L to CJTF 'SEVEN Opergtion
‘
Plan No, 3-536
b,
Guiding Principles:
(1)
Communications will be handled in the most expeditious
(2)
Particular attention will be gven to maintenance of
manner possible, consistent with accuracy and security.
communication security as outlined in ACP
122
(3)
(B).
Land-line enbles and submarine cables are approved for
SECRET tranamissions, However, no radio circuit, nor wire circuit with a
7adio link, ; is approved for ivwiling classified information,
(4)
TOP SECRET and RESTICCTED DATA will in no case be transe
(5)
Code names will not be assigned to individuals,
mitted by electrical means in the clear.
use of personal names on voice radio circuits is authorized,
The
(6) Radio teletype facilities will be used in lieu of voice
radio whenewer practicable for communication security reasons,
(7)
Close attention will be given to proper message, draft-
ing as outlined in ACP 121 (B),
In preparing messages drafters will give
particular attention to correct precedence so that truly urgent messages
will not be delayed,.and to classification so that unnecessary classified
information does not cause upgrading.
(8)
Personal emergency message service on a strictly con-
trolled basis, as well as the EFM messages, will be available to all per~
sonnel of this command,
(9) The use of personal codes, ciphers or authentication
systens is strictly forbidden,
(10)
SOI issued by this headquarters will supplement
instruca
tions contained herein,
cs Operational, Concept:
BEST AVAILABLE COPY
(1) Joint Relay Center, All organizations, within |the Atomic
‘Energy Proving Grounds will be served: by one permanent relay -crypto center
at ENIWET@ installed, operated, and maintained by TG 7.2,
stations serviced by
this relay center will include:
Tributary
Hq, JTF SEVEN, TG
79,94 Yatioaty, TG 7.' and shizpc.s- voquired, Headquartess, JTF
Divi communications center will protect for TG 7.1, TG 7,5 and TG 723
(ashore), In addition, routine naval administrative communications will
be handled through established naval communication facilities,
(2)
Crypto Center:
Crypto Center, ENIWETOK, will be crypto
guard for all above mentioned tributary stations except 1 743 (afloat),
Radio teletype circuits between the following points will provide rapid
communications between major forward and rear echelon Task Force clements
and will be operated with ON-LIE encryption, using SIGTOT vith SAMSON
y