A good point and I did consider adding this when I built my homebrew CI-V interface. Because power is supplied to the interface via the RTS and/or the DTR lines and you can turn that off and on with some programs (e.g., Commander) via software control. But because Commander provides the necessary PTT controls to the ICOM series of radios via the CI-V port, I did not see any value complicating the design with the additional PTT switching.
I am not sure if the PC-ALE program provides the necessary on function for the DTR so that there would be operating voltage present. So it may not work even if I did add the new circuit since I would have to turn off the always on RTS line as it would be used for controlling. 73, Rick, KV9U Dave Bernstein wrote: >If the ALE software can only key the transceiver via RTS, you could >build a one-transistor RTS-to-PTT interface for the transceiver >control serial port. This interface would be ignored with the rest >of your soundcard software (which does tx-rx switching via CI-V >commands), but would allow the ALE software to tx-rx switch without >your having to move cables around. > > 73, > > Dave, AA6YQ > > > Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
