Thread: SEA HF Aeronautical Term ?
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Old July 9th 06, 01:43 PM posted to rec.radio.shortwave
Robert11 Robert11 is offline
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First recorded activity by RadioBanter: Jun 2006
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Default SEA HF Aeronautical Term ?
Hello:

Came across this the other day for the first time.

The term: "SEA HF aeronautical "

Nothing I could find in Google that explains it.

What are these ?
Used by who, etc. ?

Thanks,
B.
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