[GreenKeys] Very Slow Shift Frequency keying?

[Pete G]

Unclassified 120 page document here;
https://apps.dtic.mil/sti/pdfs/AD0800669.pdf
( Public release 1-June-2004, Page 120)

On Wed, Apr 19, 2023 at 8:03 PM Nick England <navy.radio at gmail.com> wrote:

> From Jim Haynes 1/23/20 posting on greenkeys a couple of years ago….
> ———
> The shift was +/- 18 Hz to stay within the FCC requirements that the
> carrier frequency be within +/- 20 Hz of the assigned frequency.  The
> baud rate was 75 and the demodulator was said to be one designed for
> 85HZ shift.
>
> Earl E. Selover, David A. Griffith, John R. Martin, and Donald Spector
> Use of Commercial Broadcast Stations for Emergency DOD Communica-
> tions. IEEE Transactions on Communication Technology COM-15:4, Au-
> gust 1967, p. 579.
> —————
>
> On Wed, Apr 19, 2023 at 7:23 PM steve bennett via GreenKeys <
> greenkeys at mailman.qth.net> wrote:
>
>> Ever heard of this?
>>
>>
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> --
> Nick England K4NYW
> www.navy-radio.com
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>
> >>> Jordan Spencer Cunningham's GreenKeys Search Tool:
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> >>> 2002-to-present greenkeys archive:
> http://mailman.qth.net/pipermail/greenkeys/
> >>> 1998-to-2001 greenkeys archive:
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>
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