A UVSJ is NOT a splitter in reverse.
Do not use a splitter in reverse to combine a UHF antenna with a VHF antenna.
A UVSJ LOOKS like a splitter, but it is very different inside.
A UVSJ is also called a UHF VHF Separator Joiner. It contains a high pass filter that allows the UHF signals to pass but blocks the VHF signals, and a low pass filter that allows the VHF signals to pass but blocks the UHF signals. The two filters are connected together at the common port.
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Would my Denny's HD Stacker perform better if I modified the connection that way?
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I doubt it, but I'm not certain how he does the combining in his antenna. I doubt he would choose an inferior way to combine in his antenna.
It looks like he is using the shorting stub method to combine the two antennas, which eliminates the need for a UVSJ. It is also used in the RCA ANT751.
RCA ANT751
