The Comet GP3 dual band, single section, fiberglass vertical base antenna is for 2 meters and 440 MHz. It mounts on a mast (not supplied) from 1.5 to 2.25 inches.
Technical specifications : + Frequency: 2M/440 + Gain: 4.5/7.2 dB + Power: 200 watts + VSWR: 1.5:1 or less + Connector: SO-239 + Height: 5.9 feet