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Setting up tx for psk31 using DX4WIN  psk mode,got the rx to work but can't get the tx to work. VAC  is installed. I thought VAC assigned a com port. Thanks...George kf9wv
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Posted 4 years ago

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Al K0VM, Elmer

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  VAC and comports are for two different functions.. VAC is for the Audio and comports are for data/control functions ( PTT / CAT )..  PSDR does not support keying the radio with VOX when the input is thru VAC. So you must have a comport type of function for PTT.. This most often handled  with a virtual serial port program such as VSPE, VSPmgr or com0com.