[Dx4win] Split operation on RTTY

Garry Shapiro garry at ni6t.com
Wed Jan 16 20:39:53 EST 2008


I now use MMTTY with DX4WIN for RTTY and have an issue concerning 
split-frequency RTTY DXing.

The problem is how to print (display) /either /the DX on the Main VFO or 
the pileup on the Sub VFO without messing up the print for both by 
having both combined.

I use an FT1000MP, which provides constant-level audio from both VFO's 
to a mini-stero jack, AF OUT. The front-panel audio controls do not 
affect the rear-panel audio outputs. Ideally, one would have two MMTTY 
windows, each driven by one of the stereo audio outputs at the AF OUT 
jack, using both sides of the sound card. However,  I have not figured 
out how to open a second MMTTY window in DX4WIN, and am not sure it can 
be done.

What I do now is to combine both audio channels before the sound card 
and select one by selecting/deselecting Main and Sub VFO's from the 
front panel.  In the heat of battle, it is easy to forget to turn off 
the "other" audio, in which case the combined audio is demodulated as 
gibberish.

One solution might be to use my PK232, currently providing a second 
version of whichever receive channel is selected, as the Sub VFO 
demodulator only. Having two MMTTY windows would be better. Can this be 
accomplished?

Garry, NI6T


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