It depends on how you are reading the question. He says he is resweeping the plant. To me that means he has went to an active, set it up to 48 db, and went to next active and now it is 5 db lower than it was when he was there 5 years ago. That would have nothing to do with the headend, transmitters, or temp. I hope he doesnt just have bad cable and didnt realize it.
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