This is so simple it should be incorporated as standard in all campers. Using a specialised mast such as the one supplied with the Explorer range only eventually raises the aerial a metre above the apex of the camper and at a cost of $70.00 or more. This method lets you attach the aerial before you raise the roof up. Being PVC plastic it's never going to rust and is very cheap to replace if it gets wiped out by a tree etc.

Seen at the Imbil Club Rally May 2001