Check the aim as Electron has suggested.
Quote:
Originally Posted by apar
... Is there any other way to confirm antenna is the issue and not the tuner on my TVs? (Although it is unlikely both my TVS would have tuner issues).
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A simple method of checking would be to borrow an known good TV. If there is no UHF signal at that point, substitute a known good matching transformer and coax cable. (Run the cable temporarily, through a door or window.) Water in the coax is very likely to cause more loss in the UHF frequency range than in the VHF... but, it's bad for both. If you have water in the coax, it needs to be replaced.
Perhaps a thunderstorm could have damaged both tuners... but it's quite unlikely you'd still have VHF capability. The most common result of a lightning strike would be a dead TV. You're right when you say, "it is unlikely both my TVS would have tuner issues".