While my solution is directional (very), a few degrees off and you get nada (plus it is only one pc or laptop), Yves's solution is awesome.
Not only is it available with a 15db push (+60 bucks but worth it), but it is omnidirectional. Mount it on your flag pole and away you go!
Additionally it is a hot spot! Everyone in the camper (and the immediate vicinity!) can connect at the same time. iPhone; iPad; laptop; netflix slingbox; all at the same time.
I would love you if you got this.
If I was camped next to you; you would suddenly be my best friend.
In fact; I need to peek in the mad money jar and see if there is enough to upgrade my Wifi Hotspot solution...
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW