Wireless Joint

I guess I'm going to throw some money at it and hope it sticks. Really need to know the answer to three questions. Minimum distance above metal roof line, which antenna will provide the best signal, and will placing a 4g lte antenna on the same tower interfere with an off air antenna?

What we used was branded by AT&T as microcell. They stopped producing and supporting them a while back.

@Didneywhorl its approximately a quarter mile to the top of the hill.

@LoveMeSomeCALTE Short answer is I am planning on placing an outdoor antenna to receive off air channels. I have absolutely no idea what kind yet. Been looking at Yagi, if that's the right word. The biggest feat I'm trying to ...

Hello and noob here. Sorry for the long post. I've looked through as much of the forum as I can and haven't quite found the information I need yet. Sorry if I missed it somewhere.
I will try and be as specific as I can to the situation. Geographical location: Central Ky and decent signal in most ...