[RTTY] RTTY Software

[Shoppa, Tim]

On 4/11/2014 12:56 PM, Dennis wrote:
> 4. Demodulates all signals within that 5KHz.

Both Fldigi and MMVARI are general-purpose transmit and receive digital software that offer multi-channel decoding of RTTY (and other modes like PSK31 too I think). I've never used them across 5Khz but I've tried them across a few kHz.

I have not been generally impressed with the multi-channel decoders for RTTY and just prefer single-channel. e.g. A couple times I've started a RTTY contest (*) intending to use a multi-channel decoder to watch what is going up and down band, but invariably in the first few minutes I've gone back to single channel decoding. In fact I usually find myself using 2 or 4 decoder windows, between MMTTY and 2Tone, all decoding the same signal, I guess this is "single channel multi decoder".

(*) I think the ARRL rules specifically disallow multi-channel decoding in single-op category... note I entered RTTY Roundup as multi-op last year!

Tim N3QE