Thank you for the welcome 
I don't have satellite TV now, it's just the dishes are still attached on the roof from the previous owners of the house. The problem is that there are 3 coax cables coming directly off of one dish and one off of a second dish that all run directly to different rooms (all running to the upper level of the house that don't have any TV's, but would like to put a couple TV's in the rooms upstairs in the future). I'm thinking I can use an amp on the roof to connect them all to an antenna. The internet I have is on it's own coax line through charter cable and also our current TV is also from Charter cable that is all on a different set of coax lines in the home. I seriously believe there is more coax running through our house than electrical wiring! LOL. Previous owners seemed to go a little over board with that.
As for height we can just install a new pole on the roof to get to any height needed. We also thought about just buying a coax tester, figure out where all these coax lines actually run to and if we need to do a new main run from the antenna, that's fine and probably less headache.
Thanks again for everyone's help! We really appreciate it!
I don't have satellite TV now, it's just the dishes are still attached on the roof from the previous owners of the house. The problem is that there are 3 coax cables coming directly off of one dish and one off of a second dish that all run directly to different rooms (all running to the upper level of the house that don't have any TV's, but would like to put a couple TV's in the rooms upstairs in the future). I'm thinking I can use an amp on the roof to connect them all to an antenna. The internet I have is on it's own coax line through charter cable and also our current TV is also from Charter cable that is all on a different set of coax lines in the home. I seriously believe there is more coax running through our house than electrical wiring! LOL. Previous owners seemed to go a little over board with that.
As for height we can just install a new pole on the roof to get to any height needed. We also thought about just buying a coax tester, figure out where all these coax lines actually run to and if we need to do a new main run from the antenna, that's fine and probably less headache.
Thanks again for everyone's help! We really appreciate it!
I've been told by others not to add the amp until you've actually tested what you get, and just be prepared to add a pre-amp if you need it. A lot of us here get good signal, even from a distance, without an amp.
It seems like your existing dish setup is one of the multi-receiver dishes. I's fairly still common, and there may be reasons to do it with more modern setups. You can most likely use those cables as-is, again as long as there's no other dish equipment on them. Or you can stuff them back into the house and add a signal splitter from your antenna's cable. I'd recommend this instead of using an outdoor splitter, which can get expensive, unless the cables are already properly grounded. Even then, you can use the existing ground with new cable and stuff those old cables back into the attic.
Since you can set the antenna at any height you want, try your TV Fool at 30 feet and see what it does. For most houses, this means adding a 10-15 foot pole, depending on your roof and where your dish was placed. For that matter, try it at a couple of different heights. You may be surprised at how much the estimate of your signal strength increases with just a few feet difference one way or the other. Remember that it's theoretical on TVFool. You'll probably find out when you install the antenna that you need to play around with the height to get the signal you want; I'm betting that the higher it is, the better.
Also, Fringe is right: You can't have other technologies sharing the lines, so make sure it's a completely separate system.
