[rabbit73]

Originally Posted by MikeBear

Your #3 way wouldn't keep VHF out of the preamp. On the contrary, it would amplify the VHF directly from the VHF antenna side. It would also amplify the UHF side, which is the only side that needs amplifying

Ok, so he does this instead, it would stop any VHF from being amplified, even from the VHF antenna:

UHF Ant > Pico UVSJ > FM trap > preamp > 
             /                           \
    VHF side capped                   RS UVSJ > coax > power > TV
                                         /            inserter
                VHF Antenna > FM trap >


RS UVSJ (2nd one) must pass power on UHF side like
Radio Shack 15-2586 or
Antennas Direct EU385CF

So, he'd have TWO UVSJ's, the 1st one on the UHF side only, would be the cheap smaller Pico or Holland type that's power-pass on the VHF side, (which we don't care about since that's not used in this case) That would strip out any VHF signals from the UHF antenna. The 2nd UVSJ (that combines both UHF and VHF antennas) would be the RS one that's power-pass on the UHF side, and combines both UHF and VHF antennas.

You are correct, Mike. The VHF should be added after the preamp.

I blew it.