#Use fldigi for general logging serial#
#Use fldigi for general logging software#

Does the Knwd 2000 do CAT via a physical 9 pin serial connector, or via a USB connection? Keep digging - this should straighten out. Perhaps the RTS pi is being asked to do two functions on the same COM port: flow control for CAT and PTT (SEND) That won’t work. Some radios “need” the RTS and CTS for rig FLOW CONTROL (signal directions). FLDIGI is pretty simple and straightforward. You may have redundant PTT methods, which often does not work. But it is almost always a simple “check this and only this option”. I know all of these PTT (send) issues are frustrating. But it sounds like something is setting the RTS to high at boot and not letting go. I had to let it go to transmit (power at zero) and then hit the TUNE button twice. I used to see this with an ancient DELL laptop that turned the RTS pin on at boot and left it on HIGH.

#Use fldigi for general logging software#

On Thu, at 4:45 AM K3EUI Barry wrote: Don If a radio goes into transmit mode before you want it to, then most likely the PTT via RTS is getting a HIGH (positive voltage) on a COM port (real or virtual) and the radio is doing what the software is telling it to do.

Don If a radio goes into transmit mode before you want it to, then most likely the PTT via RTS is getting a HIGH (positive voltage) on a COM port (real or virtual) and the radio is doing what the software is telling it to do.