OK, I have an OTA antenna as installed by DirecTV. It is attached off of the mounting bracket for my dish. It is circular and about 24" in diameter and is mounted flat, such that it looks like a circle from above and below, but you only see the edge from the side.
I have an RG6 run directly from the antenna to a power injector. Another RG6 run from the power injector to my HD Tivo.
I can get all of the channels (3.1, 5.1, 8.1, 8.2, 10.1, 10.2, and 12.1) that antennaweb lists as the easiest channels for me to get (yellow coded, or "small multidirectional antenna"). My first newbie question is why is there 10.1 and 10.2 when they both seem to have the same content?
Now, the other three HD channels are 61.1, 15.1, and 45.1. I can get 45.1 fine it seems. But 61.1 all I got was a black screen. And for 15.1, the one I'm most concerned about, I get "no signal detected". Now, I was doing this at midnight last night -- is it possible that nothing was being aired on 15.1 and/or 61.1, or that it was down, or am I just SOL?
Antennaweb lists all three of these as Red ("medium directional"). Now, I don't exactly know what kind of antenna I have, but I'm pretty certain it is not directional. It is also mounted fairly low on my roof, but at least on the south side of my house.
Now, here is my question -- do I need a higher mounting point for my antenna and/or a directional one pointing the proper way? It is weird because all of the HD signals are coming from exactly the same place, yet three of them are marked as harder to receive. Yet I can receive one of those three, but not the other two.
I can't really get higher on my roof, and am not sure I could accurately point a directional antenna. So is there anybody that you can recommend in the Phoenix area to come and install a directional antenna for me, if that is what is needed? I'm looking for the kind of guy that knows exactly what antenna I need and exactly where to mount it so that I can receive all of the Phoenix channels.
Thanks in advance for any help!