PART If, CHAPTERS 7 and 8
CHAPTER 8
COMMUNICATIONS — ELECTRONICS
GRGANIZATION
8.2
It was apparent during Operation RED-
WING that the TG 7.5 organization to
support the communications mission was in-
effective because the communications functions
were divided within the Contractor’s organization. This led to confusion, misinterpretation of
instructions, and duplication of effort. Prior to
- the build-up for HARDTACK, Phase I, a Communications Division was established within
H&N’s Eniwetok organization which resulted in
the successful accomplishment of the communications mission. The scope of communications
work for HARDTACK was several times that
of REDWING but was performed with only a
22 increase in Communications personnel. 4
reduction in AEC communicationsstaff was also
realized by shifting a larger portion of the com-
munications program supervision to the Con-
tractor.
The organizational
status of H&N’s
Communications Division at Jobsite will be con-
tinued, and it is planned that the cable installa-
tion and splicing functions will be transferred
to the Communications Division to provide improved coordination of User requirements and
professional supervision of the cable program.
DESCRIPTION OF FACILITIES
8.3
TG 7.5 provided telephone service on all
islands, except Site Fred. At the con-
clusion of REDWING, it was apparent the Site
Elmer telephone facility was inadequate, and
engineering was initiated to replace the existing
manual-type system before Operation HARD-
TACK.
On } February 1958, a 700-line dial system with three-atrendant cabinets was
placed in service with dia! tie-lines to the TG 7.2-
,
ing the grade of service.
8.5
Three 70-line PABX dial systems were
procured to extend dial service to three
Eniwetok Atoll camps; however, installations
were made only at Sites Yvonne and Janet. The ,
third PABX was placed in stock after the Site Ursula camp was cancelled and is available to
equip a third camp at Eniwetok Atoll or it may
be utilized in Bikini Atoll after the conversion
of that atoll to dial service. The Sites Yvonne
and Janet evchanges were connected to the
Elmer exchange by dial tie-lines; thus, all sub-
scribers within Eniwetok Atoll could be reached
by direct dialing.
8.6
During
the
planning for
Operation
HARDTACK, TG 7.1 could not be assured that the off-island PABX exchanges
would withstand the blast effects; therefore,
parallel services were provided from the Elmer
exchange to a numberof off-island locations by
direct lines. The PABX off-island installations
withstood the blast effects, however, and functioned properly throughout the shot series.
8.7
The telephone service for Bikini Atoll
was provided on a manual basis. It was
found that the increased requirements due to
dividing the two laboratory activities, placing
UCRLshots at Bikini Atoll and LASL shots at
Eniwetok Atoll, overcrowded the system, rendering it incapable of handling the traffic load on
Site Nan. Manual exchanges were installed and
operated on Sites Nan, Oboe, and How. TG 7.5
is currently planning to replace the Bikini
Atoll manual system with a dial system before
the next full-scale test operation.
8.8
TG 7.5 funded the reinstallation of a
35-line dial system and radio equipment
aboard the USNS AINSWORTHat a cost of
approximately
$65,000.
This
communications
equipment had been previouslyinstalled for RED-
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8.4
of 582 were installed, and it is felt that this
numberof lines could be reduced without affect-
”
the services provided and documents the required service improvements. A detailed technical report is included in the Contractar’s COMPLETION REPORT, OPERATION HARDTACK, PHASE I.
further expansion is indicated, unless the popution figures greatly exceed those of HARDTACK. Of the 686 lines available, a maximum
.
in accordance with EPG SOP Manual,
Chapter 0270. This report summarizes briefly
furnished unattended dial system on Site Fred.
This system provided adequate service and no
er
TG 7.5 provided communications services
am
8.1
|
GENERAL
©)
the Johnston Island facilities, a representative
to LASL and designated as Classification Officer
for TG 71 throughout the Johnston Island
phase. Inasmuch as other Task Groups operating
at Johnston Island did not have resident classification representatives,these groups were serviced as required.
nn
authority. Subsequent to the establishment of
of the ALO Classification Division was loaned
9
with attempts to resolve classification problems
arising from the unexpected rapid establishment
of Johnston Island facilities. ALO Classification
Division afforded the Contractor classification
advice and assistance within the limits of its
or rT eR ew he O & yer fF F
CONEFIDEN HALT
ST .