[dorkbotdc-blabber] AFSK tone generator

[Thomas Edwards]

The "hard way" is to just stick it together yourself using Audacity to
create the tones and editing it together.

-Thomas



2008/8/14 Rob Carlson <rob at vees.net>:
> I'm trying to send NWS SAME messages to a weather radio rechipped for a two
> meter ham frequency.
>
> via Wikipedia:
>
> The system transmits digital tones over normal audio using AFSK, with a
> 2083.3 Hz mark tone and 1562.5 Hz space tone, lasting 1920 μs (1.92 ms)
> each. The data is encoded in 7-bit ASCII but uses all 8 bits, with no parity
> bit and no stop bit ("8-N-0"), at a bitrate of 520.83 bits per second
>