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Generally high swr across the band would indicate poor ground bond or direct short. Break out the ohm meter and get to work. On a side note, I think cophased antenna are a waste of time and a headache to tune, Not to mention very directional. My method of tuning cophased is to use the coax you...
Years ago there was a common modification to use a regular dynamic mic on radios that came with electret condenser. You added a ceramic disk cap to the audio wire of the mic. For the life of me I can't recall the value. Was it .1uF? Anyone?
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