First, make sure the antenna boost is on. It should be a small button that lights up normally located next to one of your cable outlets inside your trailer.
How old is your television? If it is not a digital television, you will not be able to catch over the air stations, as they are or should be broadcasting only digital signals.
2012 Crusader 320RLT
2011 F250 Lariat 6.7L
2016 (19 Nights Camped/1348 Miles)
2015 (38 Nights Camped/3560 Miles)
2014 (28 Nights Camped/1980 Miles)
2013 (30 Nights Camped/1411 Miles)