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DOD DIR 5200.10

Declassified

TO

OPERATIONS ORDER NO. 1-53
COMMUNICATIONS

DOD DIR 5200.10

HEADQUARTERS

TASK GROUP 7.4, PROVISIONAL
Kirtland Air Force Base, New Mexico
15 August 1953, 1800 T
1.

GENERAL CONCEPT OF COMMUNICATIONS OPERATIONS:

a.

One permanent relay - crypto center at ENIWETOK will be in-

' stalled, operated and maintained by TG 7.2.

Tributary stations serviced

by this relay center will include Headquarters, TG 7.4, which will be

responsible for distribution of messages to its subordinate units.

For

handling of teletype traffic, up to and including SECRET, between major

forward and rear echelon Task Force elements the following radio teletype

circuits will be operated "ON-LINE", using SIGTOT with SAMSON (synchronous

mixer):

(1) ENIWETOK-OAHU (UHP): One full duplex radio teletype
channel

ee

(Provided by TG 7.2).

(2)

ENIWETOK-KWAJALEIN:

(3)

ENIWETOK-BIKINI: One full duplex radio teletype channel (Provided by TG 7.2).

(4)

ENIWETOK-LOS ALAMOS:

(5)

ENIWETOK-aGC {uss ESTES):

(Provided by TG 7.4).

Two full duplex mitiplex channels

One full duplex radio teletype

channel (Provided by TG 7.2).

type channel

One full duplex radio tele-

(Provided by TG 7.2).

(6) TG 7.4 traffic destined for the ZI will be routed over
established USaF circuits from KWAJALEIN,

vb.

Traffic not capable of being handled by means of on-line

facilities will be enciphered off-line prior to transmission. Al TOP
SECRET and RESTRICTED DATA traffic will be enciphered off-line, This is
necessary to meet AEC Requirements and, in addition, terminal commnica-

tior: personnel are not in all instances TOP SECRET or "QUEBEC" cleared.

c. On ENIWETOK and BIKINI ATOLLS, wire telephone facilities cleared
for conversations up to and including SECRET will be made available to the

Task Group by Joint Task Force,
d.

Voice radio facilities will be available on a closely con-

trolled basis between the following points:

(1)

ENIWETOK-BIKINI (HF)

(2)

ENIWETOK-KWAJALEIN-BIKINI (HF) (TG 7.4 controlled)

(3)

Between ships (UHF, VHF, AN/TRC and HF)

TASK GROUP 7.4
OPRS ORDER NO, 1-53
ANNEX D

Declassified

a)

DOD DIR 5200.10

Decl

OD Digat’

200.19

Select target paragraph3