Re: [IRCA] Synchros, anyone?

[Nick Hall-Patch <nhp@xxxxxxxx>]

At 03:15 15/07/2006, you wrote:
>SAH had me going for a while too.


No, sah....it's Sub-Audible Heterodyne, the pulsating heterodyne 
between stations, that is, well, sub-audible, being below, often well 
below, the recognized lowest frequency humans can hear .  As to its 
origins as an abbreviation, that I couldn't say, though I remember it 
being used in the medium wave clubs in the seventies, when precision 
frequency measurement (PFM, another acronym of limited scope?) was 
being investigated by such as this list's own C. Taylor.  Possibly 
"SAH" originated there, and never moved very far beyond?   Don't 
believe I've seen it used elsewhere.


And...the magazine, Dan...EDN? (another acronym...)   Honored to meet 
you in any case, but especially if you are the Mr. S. from that publication.

best wishes,

Nick




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Nick Hall-Patch
Victoria, B.C.
Canada

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