I'm at a permanent spot and I do not pull my fifth wheel anywhere.
This is in an area that is about 48 miles from Cincinnati and 55 miles from Louisville. There are no "stock" RV antenna's that can pick up ANY TV stations at all.
I bought one of these and have it on a 20' pole that is attached to the rear bumper of the camper and I now get 27 TV stations just fine.
Once others at camp saw this, I have installed 9 more of these this year.
Granted, it is different if you are pulling a camper, but it couldn't be too tough to set something up quickly to get this to work.
Heck of a lot cheaper than the Sensar IV too!