I'm studying for my license now and am looking at my mobile set up in the cruiser. Something that jumps out at me is the difference in mobile antennas between what you see Australians running on their trucks, and what is used here in the states. The Ozzies have these massive antennas, like fiberglass broom handles, and all I can find here are basically either little pieces of wire, or they are these bizarre "ham sexy" home-made looking contraptions made out of copper pipe. Why don't we use the apparently really durable types of antennas they use in Australia? Are their antennas not correct for the frequencies we have to use here? (I think they mostly use 477 mhz?) Do the companies that make heavy duty antennas not make them for American use? Reviewers here will talk about a certain mobile antenna and how they're "amazed by its durability" when it's just a 2' piece of wire on a magnet base. It's a total noob question, but there it is. Living in the southeast, treelimbs will rip the mirrors off your truck - a small antenna isn't going to last long.