[Elecraft] K3 - N1MM - RTTY

Richard Ferch ve3iay at storm.ca
Mon Dec 7 14:17:40 EST 2009


Jim,

This is not a mode question, it's a matter of how you set your filters. 
What you see in the MMTTY waterfall/spectrum display is controlled by 
how you have set the Shift and Width controls on the K3 (and the dual 
tone filter, if you are using it), not by what mode the radio is in. I'd 
suggest you try turning the dual tone filter off while you are S&Ping, 
and opening up the width control if you want to see what is on either 
side of you.

MMTTY's X-Y display can be very useful for tuning in signals accurately. 
You can set it to "reverse rotation" in MMTTY, which I find easier to 
use than the default.

On receive, FSK D and AFSK A are basically the same. The difference is 
in how you key the transmitter. For RTTY, AFSK A and FSK D both have 
tuning, filtering and decoding aids that aren't available in DATA A. 
Also, DATA A is on the opposite sideband to AFSK A, so you have to set 
MMTTY to "Rev" when using DATA A.

73,
Rich VE3KI


> I'm just trying to figure this out for the first time.  What mode (best) does one use \
> for Search and Pounce on the K3 for RTTY when using N1MM with MMTTY viewer (No \
> panadapter(yet)) ???  
> 
> HRD/DM780 works great in DataA mode for general contacts but doesn't have the log \
> entry panel set up for the needed exchanges for the individual contests so not able \
> to upload the log file to the contest site.  Can upload ADIF to LOTW just fine.
> 
> On N1MM it is hard to tune with Data mode FSK with the RTTY filter because you can't \
> see much when going to the "next" station.  I was having trouble using Data A mode.
> 
> TIA ex 73, de JIm KG0KP


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