[Elecraft] K3S USB and MMTTY running SPLIT

Jim Sheldon w0eb at cox.net
Mon Apr 4 09:37:46 EDT 2016


Interesting observation while trying to work FT4JA on 30 meter RTTY last 
night.  Using Windows 7 Pro 64 bit, I had been trying to find a stereo 
mixer program that would allow 2 versions of MMTTY to run, one connected 
to the left channel for the main RX and one to the right channel for the 
sub RX via the K3S USB connection with the K3S in SPLIT.

Last night, I accidentally discovered that both channels were showing up 
on ONE version of MMTTY running.  I could set the main RX on the DX 
station's frequency, lock it so it wouldn't move if bumped and whenever 
FT4JA would transmit, I'd get mostly decent copy of what he was sending. 
  I could also, by judicious manipulation of VFO B, tune across the 
pileup and also decode the stations there. I couldn't isolate one 
channel from the other but they both decoded in MMTTY.  Not sure how 
that's happening, but it's an interim solution to the situation anyway.

Since I was seeing both decoded, I ran another instance of MMTTY, and 
let it decode both as well..  That way there didn't appear to be a 
conflict seeing the FT4 when he transmitted at the same time as one or 
more stations in the pileup.

Didn't manage to work him, but at least I could see both ends of the 
QSO's.  Now I hope they run some more RTTY on a band I can hear them on 
- LOL.

Jim - W0EB



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