[GreenKeys] Fwd: Very Slow Shift Frequency keying?

[Jeff G]

Makes you wonder if there's recordings of these transmissions - I guess
being back in that day with interference and all, a small hz difference
probably wasn't even noticeable to anyone.

Jeff

On Thu, Apr 20, 2023 at 11:51 AM Duncan Brown <duncanancy at earthlink.net>
wrote:

>
> This has been discussed here various times over the years.
>
> The original version of the document that Nick mentioned "Use of
> Commercial Broadcast Stations for Emergency DOD Communications"  (now
> declassified) was available at
> http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD800669&Location=U2&doc=GetTRDoc.pdf
> I cant open the URL now, but I have a copy of the pdf if anyone is
> interested (~4.5 Mb)
>
> Have fun,
>
> Duncan
> K2OEQ
>
> On 19-Apr-23 19:22, steve bennett via GreenKeys wrote:
>
> Ever heard of this?
> [image: Inline image]
>
>
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