Make sure that the K3 CONFIG:PTT-KEY is set to OFF-OFF. This is to make sure that miscellaneous, not on purpose, states of DTR and RTS in the serial connection are not controlling the transmit and keying state of the K3.
I'm not qualified to discuss how to turn off DTR and RTS on a Mac from the operating system. Better to set the K3 to not respond to those. Commonly, if used, DTR and RTS are controlled by applications running on the computer using a serial port to talk to the K3, but the state of those absent a program controlling them is unclear. N1MM logger and logger plus have a config setting to set up DTR and RTS for use or to force them to a given state. If you DO at some point decide to use DTR and RST for keying and/or PTT, you will have to completely understand and control those lines coming from the computer, be they Windows or Apple. Otherwise they should both be turned off in the K3 config. DTR and RTS are part of any serial connection, so this would be true as well using the new USB connection for K3/K3S. The DTR and RTS information from the computer still must either be managed or turned off in the config. The K3 manual version D10 has a discussion of these pinouts on page 18. 73, Guy. On Fri, Jul 24, 2015 at 10:17 AM, Bill Conkling <[email protected]> wrote: > > I have been using my K3S with Win 7 so far and decided to give the Mac a > chance to play. > > Downloaded the latest utility for the Mac (Latest OSX, Macbook Pro I7 > w/16gigs) and convinced the Mac that I really did want to open this file. I > selected the USB com port and my radio immediately went into TX mode and > would not stop. I shut down the radio. Stated K3S again and it was still in > TX. I unplugged the USB, radio still in transmit. Powered off rdio, power on > again, still in TX. > > Now I connected the rdio to my Win 7 machine, and all is well again. > > Now, plug USB back into the Mac, re-read paragraph two above. > > I am a new user to the Mac and don’t know a lot about the comport details so > this is probably something silly, but I need some assistance. Help! > > Part 2) > > Just to sav e time, I hooked up the K3 to Mac with KUSB cable, and sure > enough, it also goes to TX when connected to the Mac. So it;s not the radio, > must be a setting in the computer, a hiccup in the utility. > > > > FWIW: I have moved the modified KBPF3 and filters from my old K3 to the K3s > yesterday and that is working just fine. > > …bill c nr4c > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
