WILSON~Overland Ant Incl Mount Covers 700, 800, 1700, 1900, 2200 MHz. High gain signal output surpasses others this size. Antenna can be configured into multiple lengths. Quick disconnect mount for off-roading. Up to +4.3 dB of gain. With various installation options, the Overland Antenna accommodates a wide range of vehicle sizes. And with its 13-inch mast extension, the antenna can be extended from 7.5 inches to 20.5 inches to clear any obstructions on your vehicle’s rooftop. For even more height, an optional 18-inch mast extension is available to add another 5 inches. .