[GreenKeys] TDD Frequencies

[Gavin Wuchter]

Welp lol, now I guess my question is does anyone know of a software modem
or other itty thing that can output the original APCOM/PhoneType 1400/1800
Hz Baudot tones?


Or in theory something that can slow down the audio to be slight lower
pitch/frequency?

Just a thought trying to be somewhat cost effective for the equipment I
already have.

Thank you for your help in the search!
- Gavin
On Thu, Jun 4, 2026 at 12:43 AM John Lawson via GreenKeys <
greenkeys at mailman.qth.net> wrote:

>
>
> Ooops: manual states Mark/Space as 1400/1800.
>
>
>
> Close, but no guitar…
>
>
>
>
>
> Cheerz
>
> John
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