for Eniwetok on 8 MarOh.

Normal OTC aommunimtims

ad

VHF RTTY/voioe

CURTISS and ALBEMARLB were estab-

oircuita between the MT. MCX~yS

lished in addition to the HF duplex RITY oirauit to Pearl Harbor.
l%e normal OTC.cmmnuniaatima inoluded a taati-1 Yoioe cirauit to
air oraft whioh were aoting as reoomaiss-oe

for the f= OS. The

MT. MCKINLEY also oopied the Guam NPN5/ApA RF RTTY wmathor

tranemlsaion,

On 10 Maroh, an HF duplex RTTY oirouit was establishedbetween
MT. MOKINLEY and Jont Relay Station, Eni-tok, for teat purposes and
alternate routing as required. A practioe S1GTOT oonferenoewas held
betmen Joint Relay Station, Eniwetok and the MT. MCXINLEY,but proved
unaatisfaotory due to differenass in prooedure. These differences
were subsequentlyironed out upon arrlmd ●t Mhetok.
When the MT. MCKIl?LEYma

approximately 50 miles away from

Eniwetok, VHF RT’TTand voloe aomuniaationa were attempted with the
Joint Relay Statim.

This was in aoaordanoewi~

predous arrange-

ments made by mea sage. Caemaunioat
ions am VEF ohannela were not
established until the MT. MCKINLEY was about 5 milea from the shore
station. It was later determined that the failure to establiah lnitial oontaot on the VBF RTTY and voioe ohannelawaa “dueto variation
between the antenna ●yatema

of the MT. MCKINLEY and Joint Relay Station,

Eniwetok. It was ultimately deoided to employ vertically polarized
antennae. This, In additim to the seleotion of new frequencies (to
104
Seotion XI

“

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