[Dx4win] MMTTY and Radio Keying

[Dan Violette]

I had MMTTY working fine with AFSK/VOX but prefer FSK (no Windows sounds
going out with one sound card in use, radio filters are set-up better,
etc.).  I built the serial FSK & PTT (& CW while at it) interface.  Got
MMTTY working alone great with "software" keying by the radio interface and
FSK (only one wire from serial port to FSK) with the other serial port for
the radio control (Kenwood TS-850).

 

I cannot find a way at all to carry the radio interface software command
keying to DX4WIN.  DX4WIN works fine with the PTT keying by the second
serial port (the one with FSK, not the radio), but 2 reasons I much prefer
the other (keying the radio by software commands via the radio serial port):

-          If I start DX4WIN in "KAM" mode to use my KAM for RTTY instead of
MMTTY, my radio locks in TX until I unplug PTT (might be able to find a DTR
or CTS high/low switch to turn that off).

-          My PTT connector had not been used for a few years on my radio
accessory wiring and has an intermittent which means I need to rework it
(but many wires out of the accessory jack and hard work).

 

So, if I explained this right, I am looking for help in using DX4WIN with
MMTTY, Radio Control on one serial port, FSK on another serial port and
Kenwood radio commands via the radio interface to put radio into TX.
Everything working except the last item (software keying).  If this cannot
be done, I would like to know where and if I can ask to have this added.
Sure works nice in stand-alone MMTTY where you can interface to the radio
and use FSK without the separate PTT line.

 

/Dan KI6X