What CB antennas have you guys had good luck with that are short enough to play nice under a truck camper? I'm curious to see the mounting as well. Obviously a 3 foot fiberglass whip won't fit.
One of your better options if you dont want to have to move it when you put the camper on and you dont want to do custom is going to be the fender mount. Depending on your truck there will be brackets to either mount to your front fender or the hood hinge bolts.