[Elecraft] MMTTY DATA-A or FSK

[Don Wilhelm]

David,

Actually, MMTTY and data sub-mode AFSK-A on the K3 will give you the 
best transmitter IMD.  With MMTTY, you would tune with the K3 VFO rather 
than clicking on a waterfall display - this is a computer soundcard 
application of MMTTY.

If you prefer to click on a waterfall display, then an application other 
than MMTTY should be used.

Yes, you can do FSK-D with MMTTY, and that requires a "one transistor 
interface" to drive the K3 ACC connector pin 1.  Some prefer that 
approach because it avoids setting the soundcard levels correctly for 
transmit.  The choice is yours to make.

73,
Don W3FPR

On 10/1/2014 10:06 PM, david Moes wrote:
> I have dabbled a bit with RTTY mostly with the Centenial and some DX  
> but this past weekend I thought  Ill give the CQWW-RTTY a try. spent a 
> little time and got things working using N1MM and MMVARI using DATA-A  
> relying on the P3  for waterfall display.   It seems I got bitten by 
> the RTTY contest bug  because I loved it.  So here is the question to 
> the serious RTTY contester.   what is the ideal setup.   is MMTTY and 
> DATA-A best or should I interface for fsk. and is MMTTY the best 
> option here?   and more important what is the best way to do this both 
> from software and hardware setup.
>