Thanks for everyone's replies.
I looked through the documents I have and there's nothing about the antenna. As Jack L said, it is definitely for a television antenna for television and similar to Jack, we don't watch TV when camping (no TV in the trailer). However, we were thinking it might be a good place to attach a cell booster at a later date so aren't too keen on removing it altogether.
I took a few more closeups of the handle (attached) and plan to do a little more research. Having it hanging down isn't too big of a deal except I have managed to hit my head on it while reaching to the bed area. Don't ask me how I did it because I have no clue!
LUCINDA 1989 Bigfoot 5th Wheel | Steve, Rosemary, Maude Pod & Tripawd Hope
'Glass trips: Moab 03/10 * The Swell 5/26/11 * Antelope Island 12/21/11 * Strawberry Res 6/12 * Whitney Res 6/14 * Uintahs 7/15 * East Fork of Black's 6/16 * St Mary-Ennis-Lava 6/18