[GreenKeys] Fwd: Very Slow Shift Frequency keying?

[Duncan Brown]

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?
> Inline image
>
>
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