Rv satalite
I've used my RCA DirectTV satellite reciever in my RV for over 2 years. There is only one problem I've encountered. If you are away from home and the receiver is unplugged from the phone cable for over a certain amount of time (varies from weeks to months) DirecTV will cut the service for the receiver until it calls back in from your home phone (they have caller ID).
I sort of got around the problem by having (2) recievers. 1 stays in my entertainment center at home and the other is below it. DirectTV thinks the 2nd one is in the Kitchen, but when I leave for a weekend, I just unplug the 2nd one and go. While I'm home though, the RV receiver is plugged into a satellite cable and a phone cable so DirecTV thinks its at home and everything is o.k. Some state parks don't have very good sight lines for dishes, but many private RV parks do.
I camp mostly in State and county parks in Wisconsin, so I usually carry 200 ft of coax and signal booster. There are very inexpensive satellite finders on the net you can order with just a signal meter level. They work great. Don't spend more then $35.00 on them.
In other news, just got a Honda EU2000I generator to run the satellite and other things while I'm "roughing it". It amazingly starts the air-conditioner with the "eco-throttle" setting off. Just FYI. Great little machine..........