We use this:
http://booster-antenna.com/index.php...5e153cd0eb7ac2
with a Kyocera KP650 aircard from Verizon.
Since we travel in "extended coverage areas" we got this to hook up to the aircard (drilled a small hole to the outside and mounted it on one of our slide topper brackets:
http://booster-antenna.com/index.php...roducts_id=155
We're in McCloud, California (near Mt. Shasta) and I'm on the forum.
My wife and I have laptops which connect to the KR-1 router via WiFi, and then the aircard connects to Verizon for Internet access.
Simple and it works.