teleview

The situation that comes to mind is , damaged coax / connectors.

Disconnect the coax from the splitter that feeds the Tv with the problems.

Connect a New long coax to the splitter and run the New long coax to the Tv that has the reception situations.

And ->All So , any and all other , coax , couplers , connectors , splitters , electric , electronic devices and etc. , can be the cause of odd and strange reception situations.

And also , having the antenna in the attic can also be the cause all manner of odd and strange reception situations.

The idea is to install a Tv antenna at location that has the least amount to no amount of - any thing - that can effect reception in a negative way.

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I remember a situation that , at a house I was was checking out reception problems of cable Tv.

I finally solved the reception problems.

I replaced 3 coax jumpers that connected VCR's and cable boxes to the 2 Tv's.

Looking at the coax jumpers , the coax jumpers , looked 100% , no visable damage.

2 coax jumpers had broken center wire and the 3rd had damaged separated foil shield and shied wires.

This story is to provided to help expand the thinking , not limit the the thinking to only coax jumpers.