I currently have a Diamond SG-7500 for my Ham radio and a scanner antenna, BUT they are pretty big. I'm in the market for some new antennas. One for my Ham radio and one for my scanner. I want them to be fairly small, preferrably under 24" tall or so. What brand do you guys recommend as far as height, quality, db gain, etc. Also I want them to be magnet mount because I don't really want to drill holes in the roof of my Jeep .