Ron, That would be the result if diodes D1 and/or D2 in the KAT100 were damaged. They are easy to replace. If that does not correct things, then the KAT100 firmware IC may have a damaged input.
The diodes are properly 1N5711s, but 1N4148s will work if you are willing to sacrifice a bit of "flatness" with respect to frequency. Those diodes can be damaged by static coming in on the antenna - not only lightning, but wind, rain or snow can generate a high static charge on some antennas. The safest thing to do is switch the input to a dummy load when not in use. 73, Don W3FPR On 7/27/2011 4:30 AM, Ron Biron wrote: > I'm a new K2 user, but not the builder of this rig. It seemed to perform > perfectly for one day, then the ATU's SWR LED's quit while tuning. I get a > 1:1 readout in the K2's LCD, but unlike previous tuning, the ATU's relay's > go through the matching process, as if I had changed band or frequency. > > Any thoughts will be appreciated.... 73 Ron > ______________________________________________________________ > 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 > ______________________________________________________________ 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
