Thank you so much for all the replys. Tried the grounding. This is 875 cable. If it was something to do with pads or eqs intalled. The first amp changed out works fine in another run.Changed out all connectors . Tdr shot is clean. Response takes a dive from 750 . sweeping to 860. . Will try the interstage pading.Also changed voltage from 90 to 60 . To see what that would do.No luck there. This is 1987 foot span with no straight splices or splits.
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