I've been with DirecTV forever. Yes, you can take your receiver with you. It is possible that you can travel far enough from home that local channels will not come in. In that case, use the OTA antenna or camp cable if you need to see the actual local channels. I use a manually pointed tripod-mounted dish. The key to aiming is patience and little adjustments. Of course if your budget allows, the automatic units are fantastic. Find an open spot, snake the cables back to the camper, plug it in and hit a button. In a couple of minutes, you are ready to go.
2014 Rushmore Lincoln (2013 floor plan), 2nd owner
2005 Ford F-250, slightly warmed over!