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Yes, I attached it right before the cable box, also after a 100ft+ cable run. It eliminated all of my pixelated pictures, and all channels show up very clearly. I live in Manhattan, where there are lots of long runs with old coax cables...
Sorry, there was a problem. Please try again later.Does not work, had to return it for a refund.
Sorry, there was a problem. Please try again later.Yes
Sorry, there was a problem. Please try again later.Yes, this can be connected before the cable box. The shorter cable going into the input with the long cable to the TV connected to the output.
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