[RTTY] AFSK to FSK converter

Joe Subich, W4TV lists at subich.com
Mon Sep 17 01:07:26 EDT 2012


> However, I still need an AFSK to FSK converter for use with other
> non-FSK programs such as 2Tone, fldigi and probably others.

Fldigi provides p-FSK and the help file shows the schematic to convert
that on/off keying to FSK.  HRD/DM780 will probably soon support
EXTFSK/FSK8250 (at least that was Rick's plan when I last saw him).
2Tone seems to be one of the few that seems to be unwilling to even
consider any form of FSK support.

The K4DSP regenerator is nice but is not available and like Chen, I
know of no commercial alternative.

73,

    ... Joe, W4TV


On 9/16/2012 10:30 PM, Bill, W6WRT wrote:
> ORIGINAL MESSAGE:
> On Sun, 16 Sep 2012 20:04:40 -0400, Joe wrote:
>
>>
>> MMVARI is not AFSK only ... it happily does FSK using either EXTFSK
>> (bit banging with a USB to serial adapter) or FSK8250 (for UARTS)
>> beginning in version 0.44 or 0.45 (can't remember which).
>
> REPLY:
> Ok, thanks for that. I knew EXTFSK worked with MMTTY but I didn't know it worked
> with MMVARI as well.
>
> However, I still need an AFSK to FSK converter for use with other non-FSK
> programs such as 2Tone, fldigi and probably others.
>
> 73, Bill W6WRT
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