wen
3.13.3
3-65
Communications (Johnston Island).
Radio communications during NEWS-
REEL were held down to a bare minimum with maximum utilization being placed
on hard-wire circuits.
At Johnston Island this was extremely practical due
to its size and the concentration of the scien tife stations.
Additionally,
a special hard-wife circuit was established from the Bunker (7-70) Switch-
board to all manned stations for muster and ccordination of the sclenti fie
effort,
This circuit proved to be an extremeiy veluable adjunct to the
installed dial system.
Interference with scientific instruments from ali sources was a@ continuing protien throughcut HARNTACK.
Interferzince .ourcas we12 cetermined
by means of F™ equipment, Logis, virial end audtbl« recognition and the
"eut and trv! method.
Tue EM solution, wee cf ccurse, the mest factual,
in that, beering could be determined and equipment identified by pulse
analization, but was least effective either due to equipment malfunction or
inherent equipment design limitations.
As a rule normal EQ1 equipment
sensitivity was far below that of the scientific receivers,
The e#uution
to this problem was to make the EQi center mobile and "sample" the interference with a probe from the scientific receivers themselves,
This
approach was tried during the NEWSREEL pnase of the operation and proved
to be a valid concept,
For future operations involving large scale radio telemetry the mobile
ECM concept should be continued, and the equipment be of the latest design
that can be procured on a loan basis.
Further, soare parts should be availe-
able in advance prior to an equipment failure to provide maximum flexibility.
A source of independent power should also be provided on a mobile mount.
In order to transmit the count-down to all projects over long distances,
COPIED/DOE
LANL RC
it was necessary to install medium high frequency single side-band equipment
for the Teak Ft Arange events.
Uric
he
:
few
.
LANL RG
This communications system provided a more
,
li—
.
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