How dry is it?? ?Could some moisture got into someplace from radio to antenna?
Has anything been undone before this happened or the coax itself been flexed too much?
Have you ran a continuity check for different parts that go from the simple on place on up to the whole as much as possible?
Does you antenna switch get used often? it might be wearing a bit.
?
Thank you
Jim
KE0VVU
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