The antenna proper usually doesn't pose a problem. What the problem may be is the coax that comes from the antenna to the amplifier.
It could be crappy connections at the coax. Open the outlet at the amplifier and check the OTA coax connection. Check the connection at the antenna itself.
Anything can happen inside these RVs. I noticed the other day that my volt meter wasn't working. I pulled it out and found something had eaten the wires leading to it. Nibbled the wire right down to the Molex plug. Go figure!
2013 Voltage 3800, 2012 Chevy 3500 HD
2010 Yamaha V Star 950
2009 Yamaha Raider
Volunteering with Habitat for Humanity Caravanners