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K0CQ > INFO 23.08.02 05:56l 25 Lines 811 Bytes #999 (0) @ WW
BID : 9356_W0AK
Read: DB0FHN GUEST
Subj: Omega
Path: DB0FHN<DB0ZWI<DB0CHZ<DB0ERF<DB0MRW<OK0PPL<RZ6HXA<SP7MGD<WB0TAX<N7FSP<
KB6LE<KB6LE<W0RLI<N0RVX<W0AK
Sent: 020821/2114Z @:W0AK.#CIA.IA.USA.NOAM #:9356 [Des Moines] $:9356_W0AK
From: K0CQ@W0AK.#CIA.IA.USA.NOAM
To : INFO@WW
Project Omega transmitters were at 10.2, 11.something and 13.6 KHz and their
frequency was known to the quality limits of the best atomic frequency
standards. They were used for super precise position determination.
The lower frequency submarine communications use(d) frequencies more like 65
to 90 Hz, essentially unbalanced power lines over large blocks of rock that
gave them a decent loop aperture. I once suggested a few odd tweaks of the SCR
triggering feeding a long DC line could produce those frequencies, but my
graduate committee made me remove that from my dissertation because it was too
wild an application for power men to admit possible.
73, Jerry, K0CQ @ W0AK.#CIA.IA.USA
[ Received via HF CLOVER at KB6LE ]
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