The GP-3 is Comet's most popular VHF/UHF base/repeater antenna. Hundreds of these antennas are in use in repeater systems around the world. Although it is not designed for permanent mountain-top installation where extremely high winds, ice and other extreme conditions exist, it has been used at Mt. Cho Oyu which is the 6th tallest mountain in the world, just 30 miles west of Mt. Everest.
Heavy duty trunk lid - hatch back mount. Universal mobile mount. Dual-Axis adjustment gives flexibility in mounting location. Mount possibilities include trunk lid, hatch back, vertical door, etc. Recommended for large VHF / UHF or medium size HF antennas. 16 mm, 5/8" hole. Has 17-foot of RG-58/U coaxial cable with PL-259 connector.