I’m installing two antennas on top of my RV. One will be dedicated to GMRS mobile radio and the other to a Uniden BCT15X scanner. I have a 15 inch ferrous metal sheet ground plane installed on top. I’d like to use a mag mount for both antennas and put both on the ground plane on opposite sides. Additionally, both antennas are unity antennas. I’m trying to minimize putting any more holes in the roof ... I have an a three cable coax entry which will accommodate coax for my satellite antenna and two radio coax. I’ve distanced the satellite antenna to allow for an unobstructed view. I welcome any comments, observations, and advice!