roof mounted OTA antenna

I have a Jack w/Sure Lock, works good for me. They all depend on how far you are from the station.

If you have a tall 5er watch out for tree limbs if you get a Jack. I had one, a good antenna until a small tree limb took it out which showed me how flimsy the mast is on it. If you have a crank up why not upgrade to eith a Sensor 4 or Jack on top?

Just some info for you to keep in mind while shopping:

There is no such thing as an "HD" antenna, despite lots of marketing to the contrary. Radio waves are radio waves, the the hd broadcast are using the same waves as the sd broadcasts.

When you find an antenna you like the looks of, and the price is right go for it, don't fall for a higher priced model that says it's "HD ready" or any similar nonsense.