Combine impressive GMRS two-way radio range with everything needed for a seamless installation. The Highland��� is 28.5 inches in height, mounts on a �� inch hole, and is built with durable fiberglass strong enough to tackle the toughest trails. With the value pack, the antenna also comes with a 19.5 ft. COAX cable and Interchangeable stainless steel spring mounting base, allowing the antenna to clear up communication in heavily obstructed areas like cities, dense forest, and mountains. Frequency Range: 462.5500 - 467.7250 MHz