Originally Posted by Stevemc
Thank you B and B. Should I get some voltage reading at the coax at the tv's if the amplifier is working?
It's cold and windy today. I'll try to get back on the roof tomorrow.
You will not (should not anyway) see 12 volts at any TV.
The signal coming down from the antenna is RF and you would need an oscilloscope to see the waveform.
DC only goes up; RF comes down (if you will). The antenna "downlead" is the only coax that "sees" the 12 volts. The TV outputs (1 and 2) have the DC stripped out.
Set 2 cable goes to a splitter then on to the TVs in other rooms
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