[Elecraft] MMTTY DATA-A or FSK

[Jim Brown]

On Wed,10/1/2014 7:06 PM, david Moes wrote:
> So here is the question to the serious RTTY contester.   what is the 
> ideal setup. 

Most contes.ters use MMTTY. Some swear by FSK, some like AFSK. For FSK, 
use FSK-D. For AFSK, use AFSK-A. AFSK has always used LSB, while other 
digital modes use USB. The two popular logging programs are N1MM (Free, 
excellent) and WriteLog (Not Free). I use N1MM and AFSK, and use VOX for 
PTT.

N1MM has the capability to open additional decoding windows, each of 
which can be optimized for different forms of distortion caused by 
propagation. Most of us use a program called 2Tone for those additional 
windows. We use the additional windows because sometimes the decoders 
miss one or more characters, but if you're running multiple decoders, 
there's a good chance that at least one of them will copy the exchange 
and you won't need to ask for a repeat.

Google to find MMTTY. 2Tone is distributed on the email reflector for 
N1MM Digital. Both are free.

There's an applications note here

http://k9yc.com/USB_Interfaces.pdf

that talks about some good USB audio interfaces and setting levels to 
produce a clean signal.

73, Jim K9YC