The UVSJ finally worked for me, and dramatically.
Iím very close to the CHCH transmitter (11.0, 36.0, plus digital signals), and expected distant channels were not coming in, i.e., WNYO (49.1).
Thankfully to DHC members, I scored a couple of UVSJ splitters with the intention of reducing the strong/very close VHF signal (11.0) that might be disrupting the weaker/distant ones (WNYO- 49.1). So I tried the UVSJ splitters in various ways: before joiner, after splitter, before and after splitters/joiners, direct line (w/o splitter/joiner), etc., but nothing worked significantly, and resigned myself to thinking the UVSJ didnít work in my situation.
It should be mentioned that I am also using a CM3414 amp which gave me a better lock on some digital UHF channels, but not the more distant WNYO and ION. I never tried the UVSJ after the amp b/c the amp itself gave me increased signal strength.
Just this week I got a new TV and the first thing I tried was reception on my weak station (WNYO), and it came in. Why? I first thought it was the tuner, which is different than my other TVs. But now I realized it was because this TV, which has the longest coax line and has multiple joiners, was receiving an attenuated signal (weaker CHCH), and thus WNYO could come in, which it did.
So with this in mind, I tried the UVSJs after
the drop amp for each separate TV, and viola, it worked! WNYO came in solidly on my two other TVs, from 0% to 40%, and ION was pixilating. SUCCESS! SUCCESS!
THANK YOU DHC MEMBERS!