On 4/7/2021 7:53 AM, Frank Kirschner wrote: > Update: I tried it on a 200 watt dummy load. Worked fine up to 200 watts. > So I'm guessing it's something to do with the antenna - parts worked loose > or corroded. Going to have to call my tower guy. Or with feedline. Something breaking down with power. 73, Jim K9YC