Thanks Jack for taking the time to reply. No faults are shown on the GUI. There is no connection to Pin 8 of the Aux connector either.
I will try to pull a dump tonight when I get home. I will also do a trap on the serial line to see if I can capture any data during a failure. That will hopefully point us in the correct direction. 73, Mike va3mw On Tue, Nov 22, 2016 at 11:40 AM, Jack Brindle <[email protected]> wrote: > Mike; > > There is no event in the firmware that should cause power down other that > activating the power on/off signal, either through the front panel button > or the AUX/IO signal. Having said this, obviously something is going on. > You don’t report any faults being shown, but that doesn’t mean there > aren’t any. Is there anything anomalous that you are seeing other than the > KPA powering off? Is there any connection to pin 8 of the KPA’s AUX > connector? If so, it could be triggering the power-off. > > Let’s try to gather more information to determine what is going on. If you > can capture a current fault dump using the KPA Utility I will analyze it to > see what it might reveal. I don’t know if you can get that remotely, but it > is worth a try. > > 73, > > Jack Brindle, W6FB > Elecraft Engineering > > > On Nov 22, 2016, at 7:31 AM, Michael Walker <[email protected]> > wrote: > > > > Not an SWR issue. I can see the SWR on the KPA500 and on the external > W2. > > Both would alarm if the SWR got above got above 3:1. > > > > At least, for the moment, I have eliminated that. > > > > It could be breakdown in an antenna switch, but that would again show up > as > > something other than the until powering off and on. > > > > Yes, it does seem like RF, but when nothing has changed in a year (and I > > mean nothing), I have to set that aside too until I have eliminated a few > > other things. > > > > I appreciate the idea though. > > > > Mike va3mw > > > > > > On Tue, Nov 22, 2016 at 10:24 AM, Bill <[email protected]> wrote: > > > >> First thing that comes to mind - high SWR. > >> > >> Bill W2BLC K-Line > >> ______________________________________________________________ > >> 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] > > ______________________________________________________________ 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]
