> Erwin DU1MGA wrote: > Hi Om's. > I use the 2 handshaking signals on com1 to switch the TX-70 > from TX to RX. Works fine. I was trying the same with PC-ALE. > I do I cannot activate the TX.
Dear Erwin, Try using only one method for hardware PTT: RTS for PTT -or- DTR for PTT Do not use both at the same time. Be sure your hardware interface has the same selection as the software. There is one more factor to consider: What type of interface are you using? Does your interface get relay power from the DTR line? Sorry if I'm not an "OM", Erwin, but I hope that my suggestion will help you to find a possible solution anyway :) 73 Bonnie KQ6XA
