It may be a too obvious comment, but the easiest way to tell what is going on is with a serial breakout box. If you get one with LEDs you can visually watch the status of the control and data lines in real time.
David K0LUM At 1:41 PM -0600 9/26/09, Bill W5WVO wrote: >Julian, G4ILO wrote: > >> I have never used VOX. Why would you need to? If you have a fully >> wired serial cable between the K3 and PC then just set WSJT to use >> that COM port and in the K3 menu configure PTT to use RTS. > >Julian et al., > >I have always used VOX for WSJT keying, so I tried setting it up for >RTS control >as you suggest above. But when I try to configure the K3 for ether PTT=RTS or >PTT=DTR with NO RS232-controlling application (like WSJT) running, >the rig keys >up (and switches into TEST mode automatically as per the manual). If I then >disconnect the serial cable at the laptop serial connector, the >keyed condition >disappears. > >My conclusion is that the laptop's serial port is asserting RTS and DTR >full-time for some reason. It's a 2-year-old Dell Latitude D820, Core2 >processor, 2 GHz, 2 GB RAM, running XP Home. It has one true RS232 >port (COM1), >the one I'm using. Flow control is set to NONE, so it should not be asserting >these lines by default. Has anyone ever encountered this? > >Bill W5WVO > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:[email protected] > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
