Thanks Stan for the comment. It has worked out really well. For example, we were at Myrtle Beach State Park and our site was quite far from the office/store where the wifi signal originates, with lots of trees and other RV's between. Everyone else in our loop had to carry their computer to the office/store, but we were able to access the park's wifi from inside the Roadtrek. On the trip down, we used to have to carry the computer into a Staples or Lowe's or McDonald's, but now we can sit in comfort in the Roadtrek. In fact, at one place, the Lowe's across the road - about a half mile at least - provided the best wifi connection. The antenna is essentially a combo antenna and network card and connects to the computer's USB port. The internal card/antenna will show maybe a couple of weak signals but the external card/antenna will pull in as many as 20 signals. Now, not all of them are "unsecured", but only once we couldn't find an unsecured hotspot. So we just moved down the road and found one!
I know that lots of folks happily use mifi from Verizon and others, but being Canadian, I refuse to pay for a service that I can't use economically in both countries. For the time being, we're very happy with this wifi approach.
HERE IS a link to the C Crane website. (I have no financial interest in the company; just a satisfied customer)
Jerry & Susie
1996 Roadtrek 190 Versatile (Dodge 5.2 L)