[GreenKeys] 10 Hz shift RTTY?

[Nick England]

Here is some more info on the ELF system
http://www.navy-radio.com/commsta-elf.htm

Best regards
Nick

On Tue, Jul 25, 2017 at 10:15 PM Chris Elmquist <chrise at pobox.com> wrote:

> Clam Lake, WI
>
> https://en.m.wikipedia.org/wiki/Project_Sanguine
>
> Chris N0JCF
>
> --
Nick England K4NYW
www.navy-radio.com
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