I assume you're restarted both the computer and the K3. You need to eliminate either the computer or the K3 as the problem. Test the computer serial port by following these instructions.
http://www.reliableracing.com/downloads/LoopBackTest.pdf If the port talks to itself the problem is with the K3. On 6/6/2010 2:13 PM, Pete Smith wrote: > Today we had a heavy lightning storm pass through the area. All of my > antennas were disconnected, as were all the control cables, but the > computer and my new K3 were still on. When I returned to the shack > after the storm, everything appears to be working normally *except* that > none of my software can communicate with the K3. The radio shows no > error messages, and transmits and receives normally - just no > communications. Alas, I have no other serial devices in the shack, and > my backup computer does not have a serial port, so I can't test to > determine whether it is the port on the computer or the KIO3. > > Is there any diagnostic that can be performed in the K3 to determine if > in fact something's blown on the KIO3 board? > > -- R. Kevin Stover ACØH ______________________________________________________________ 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