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It sounds like you might be on the edge of the digital cliff, rather than balun problems.
If you think otherwise, you may consider making your own 4:1 balun. Google ½ WAVE LENGTH COAX BALUN for suggestions.
Running 50-feet of twin-lead down to the ground isn't a bad idea. There is special hardware to achieve standoff between your mast and other metal along the path.
Last edited by jrgagne99; 6-Dec-2019 at 1:39 PM.
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