I use the positive traps in my system,I can't measure the scrambling signal so I look at the scrambled picture and then look at the picture passed the descrambled picture.Once I get the picture clear through the descrambler I make sure the unscrambled picture is wiped out.I find out that you can't trust your audio meter readings on your stealth meter some how the scrambler messes with the readings.Once you get it set up it works good,mine has been running for 6 years with no adjustments. Chuck
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