I own a great K3S from a pair of months. It work great, dx, qsos, contest (just worked CQWPX, 1200 qsos). Just after bought it, sometime on cw transmission the swr-rf indications, the moving black dots, gone all blanked, all on the swr and on RF indications. I thought about rfi problems, but it happened even with dummy load. And with no swr on antenna. With atu inserted is seemed more rarely happen. This morning I have this problem happen at least on 14-18-21-24-28mhz, keying the rig with my bug, only with long dash and not with dots string. It is a rainy cloudy day, but I think that doesnt matter :) When using the paddle with internal keyer I havent the problem. It seem to happen only when keying at least 2-3 seconds long. When it happen, with the two measurements blanked, the rig really continue to transmit - I see regular power on my external Bird 43 wattmeter. Somebody had this problem and know how to solve it? Many thanks Ian IK4EWX
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