The camper should come with a dedicated coax connector on the outside of the camper that's identified as "Satellite TV". When we had DirectTV, when I plugged into this, it didn't work. I ended up having to put the cord from our Tailgater through the window.
Your Satellite signal will get lost if you plug it into the outside cable or antenna jack. Once the signal hits the power booster, it won't work. That's why manufacturers started putting in a second jack just for satellite service.
The coax wire you use on your satellite system may not match what runs through the camper either. This is something you probably won't know until after you get the camper. But, you can always stick the wire through the window and hook it directly into the satellite receiver box. That's what we did.
