The Tram 200 Watt 134 MHz to 184 MHz VHF Black Fiberglass Base Antenna with 50-Ohm UHF SO-239 Connector has a heavy-duty fiberglass construction base, is 4 ft. 10 in. tall, and can withstand winds up to 135 MPH. It accepts mast diameters 1-3/16 in. to 2-7/16 in. and has an impedance of 50 ohms. This black antenna comes with three 20-1/2 in. stainless steel radials, UHF female (S0-239) connector, and bracket. | Tram | | 200-Watt 134-184 MHz VHF Fiberglass Base Antenna, 4'10" Tall, 50-Ohm UHF SO-239 Connector | Black | Best Buy