Quote:
Originally Posted by Tigerbangs
I am kind of iffy about the overload characteristics of the AP-8275.
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AP 8275 maximum UHF input 29,000 microvolts
Next add the strengths of all the UHF stations
signal strength of KXAN -32.6 dbm = 6420 microvolts
gain of HD7698P antenna on channel 21 = 10 db +/-
signal strength of KXAN into amplifer = 20,302 microvolts
signal strength of KVUE -35.1 dbm = 4814 microvolts
gain of HD7698P antenna on channel 33 = 10.4 db
signal strength of KVUE into amplifer = 15,940 microvolts
signal strength of KLRU -35.5 dbm=4598 microvolts
gain of HD7698P antenna on channel 22 = 10 db +/-
signal strength of KLRU into amplifer = 14,540 microvolts
signal strength of KEYE -35.8 dbm = 4442 microvolts
gain of HD7698P antenna on channel 43 = 10.5 db
signal strength of KEYE into amplifer = 14,879 microvolts
signal strength of KNVA -35.8 dbm = 4442 microvolts
gain of HD7698P antenna on channel 49 = 10.7 db
signal strength of KNVA into amplifer = 15,226 microvolts
Add them together, and so far we have a total signal strength of 80,887 microvolts. The AP8275 amplifier is easily overloaded and I've ignored the weaker stations. The AP 8700 at 93,000 microvolts of overload works with very little margin. The HDP-269 is the only amplifier that can't be overloaded.