[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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