ame
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rapid means of notifying the distant stations using WWV time base, in the
case of delays or hoids.
The single-side band equipment was installed on Sand Island by Task
Group 7.5 and operated by Task Unit 5 in the 7 and 1) mcs bands,
These
frequencies gave ws extremely good coverage throughout the Pacific and
unofficial reports from amateur operators in Honolulr indicate that the
transmissions were received in Alaska, Australia, and throughout the U.S.
Due to the variety and types of receivevs being used by projecus to copy
the count-down it was found necessary to instigate a calibration countdown starting at H-l hours to enable the users to have their receivers
properly tuned.
This requirement did not exiss hefore with the VHF count-
down equipment as these receivers were crystal controlled and no calibra-
tion or tuning count-down was required.
| NES/DOE
LANL RC
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