[Milsurplus] Ship Radio Operators:

[Nick England]

See para 6074 of Communication Instructions, US Navy (DNC 6, 1939)
Chapter 6, Radio - see PDF page 7
http://www.navy-radio.com/manuals/dnc6-39.pdf

Cheers,
Nick England K4NYW
www.navy-radio.com


On Mon, Sep 14, 2020 at 12:40 PM Mike Morrow <kk5f at earthlink.net> wrote:

> That's the first document I've seen that uses SSSS to indicate attack by
> submarine.  Everything else I've seen isSSS, sent:  dit dit dit (space) dit
> dit dit (space) dit dit ditThat contrasts withSOS, sent:  dit dit dit dah
> dah dah dit dit dit (one prosign, no spaces)
> A WWII life boat 500 kHz transmitter made by Federal has selection for
> auto keying of SOS or SSS.
> Hue, do you know the source of the document?  I also did not know of the
> A, R, M attack codes.  Interesting.
> Mike / KK5F
>
> -----Original Message-----
>
> From: Hubert Miller
>
> Sent: Sep 14, 2020 3:16 AM
> >
> Be sure you understand these message formats.
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