First thing that come to mind is, are the baud rates set the same. I know the default baud rates are different.
On Sun, Sep 16, 2012 at 3:53 AM, Edward R Cole <kl...@acsalaska.net> wrote: > I have been trying to use the KX3 USB/RS232 cable to command my K3 > via its RS232 port. I assumed that this would require only the RXD > and TXD connections that is supported by the KX3 cable. But it will > not establish contact with the K3. > > I have a conversion box with a stereo 3.5mm mini-phone connector > connected to a DB9 for making the connection with the K3. Tip > <-->pin-2 (DB9) and Ring <--> pin-3 (DB9); Gnd <--> pin-5 (DB9). > > My K3 Prolific USB/RS232 cable makes contact with the K3 with no issues. > > The KX3 cable is connected via com-3 while the K3 cable is connected > via com-5. Looking at these ports on the device manager the > appropriate drivers are installed for each port and indicate they are > working. Com-3 connects to the KX3 fine and com-5 connects with the > K3 fine (using the appropriate utility sw). > > Just wondering if there is something incompatible between these two > serial cables that they cannot be used with the other radio? > > The reason for asking is that I need both com ports to support > operation from two programs that need to communicate simultaneously > with the K3. One sw is only requires RTS or DTR to control PTT, > while the other sw is using RXD and TXD to execute a frequency command. > > Both programs operate correctly with the K3 if I use the K3 serial > cable to connect them. > > 73, Ed - KL7UW > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- Jim K0XU j...@rhodesend.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
