When I first turn on my K2/100 the KAT100-1 works fine. After it has been on for a while, the KAT100-1 refuses to retune to a new frequency at opposite ends of the band on 80 or 40 meters (for example). There are no relay clicks and the SWR LEDs light up showing an out of resonance condition on the band being retuned. The KAT100 memory works fine when scrolling through all the other bands where resonance was previously set.
During this condition I went to the ATU menu and tried to edit AUTO. Turning the VFO knob would display PA ANT 1 only and then go back to AUTO. Tapping ANT 1/2 shows NOT INST. Also during this condition TUNE will not automatically go back to receive until TUNE is pushed again.
It seems to me I may have a microprocessor problem in the KAT100-1. KAT MCU 1.05 is installed. When it works, it works well on all bands including 60 meters. I have checked for solder traces and resoldered all connections in the KAT100-1. The K2/100 works fine into a manual antenna tuner. Any suggestions would be appreciated. Thanks Roy Morris W4WFB
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