If you go to TVfool.com, you can find which direction "reachable" stations are located plus it will tell you the signal strength and what size/type of antenna you need. There are a number of forums out there for OTA reception that can help.
You might consider a better antenna on a 20' or taller pole. Forget the cheap antennas on ebay that have a rotator as they are gimicky and have waaay over-inflated performance claims. There are all sort of good antennas available and what you want will depend if you also want "low VHF" stations plus "high VHF" and UHF.
Solidsignal.com sells a large range of brands and types of antennas. Generally speaking, the larger an antenna is, the better the reception. The larger you go, you have to consider wind and guying a mast. I've been thinking of getting a better antenna than our wimpy Winegard roof antenna and using a 20' collapsible pole.
"Proper" rotators aren't cheap. If the stations you want are aimed in say 2 or 3 directions you can always mount 2 or 3 fixed antennas.
If you have satellite TV at home, you could always set up a dish and take a receiver from home. If you have a permanent site, you can get hundreds of "free to air" (FTA) satellites and watch TV for free. This takes time to study up on what's needed and how to set it up. The stations aren't like subscription stations tho. and you'll get PBS, world news, documentary and Velocitychannel and lots of stations in the Middle East, Europe and Africa. I recently installed an FTA setup at home and watch the Velocity channel a lot and it's on 24/7.
Nothing is worse than going camping and roughing it in the great outdoors and not being able to watch TV... :E