I've been doing research on the hd antennas. I didn't realize there were so many options.  Directional, Omni-directional, powered, etc.  So, what do you use, recommend, any suggestions on installation, etc?   
I am in Canal, but not in a housing development. I am surrounded by farm land. Ranch style house. A few tall trees, but not a forest.  I was thinking about a long range Omni-directional, but read that those can pick up a lot of interference, which may result in a not so good picture.   
Since I currently have DirecTV, which I am working on cancelling, I was thinking I could use that post to mount the HD antenna on.  Would that work?   
Do all of these antennas have to be plugged into power?  How does that work?  I don't have an outlet outside for one.  I can't really find any info on the power piece.   
Any help would be appreciated.  Thanks.