The laird B1443 base loaded 5/8 wave antenna operates within the frequency range, 144174 mhz. This vhf mobile antenna delivers high performance, with a gain of 3 db. Maximum power input is 200 watts. The 49 inch stainless steel whip antenna has a UV treated radome to resist sun damage. The housing is constructed using an ABS material, injection molded around a solid brass insert and complete with plated brass fittings. Order spring and/or NMO mount for your laird mobile load coil antenna separately. Frequency: 144174 MHz gain: 3db.