[Elecraft] MMTTY DATA-A or FSK

david Moes dmoes at nexicom.net
Wed Oct 1 22:42:59 EDT 2014


Thanks Don   so it seems I was doing the right thing   I did start with 
MMVARI then went to MMTTY  both AFSK A   I misspoke in the original post 
saying DATA-A but meant AFSK-A   so it seems I am on the right track  I 
find tuning with the VFO and watching the markers on the P3  the 
easiest    I dont like tuning with the mouse.

David Moes
President: Peterborough Amateur Radio Club.
dmoes at nexicom.net
VE3DVY,  VE3SD

On 10/1/2014 22:31, Don Wilhelm wrote:
> 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.
>>
>
>



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