You are aiming the -> satellite <- on your camper?? Or you are aiming the Broadcast Tv Antenna on your camper?? The 5 degree is in between the two groups of tv stations on either side of north. The in between aim point is for the best reception of the two groups of stations on either side of north. 99% of the time broadcast tv antenna aiming Is Not Critical , the aim point with the aiming direction and the examples of broadcast tv antennas ,
http://www.kyes.com/antenna/pointing/pointing.html , is to get you to aim the antenna in the direction to begin with , Then As Always , the broadcast tv antenna is turned to the left and right for the best reception of the broadcast tv channels that you will like to receive. If the digital tv has a signal strength meter you will use the signal strength meter to adj. the broadcast tv antenna for the best reception of the broadcast tv transmissions that you will like to receive.