TRAM 1486 UHF Land Mobile Base Antenna. 63" tall Freq: 406 - 512 MHz 6.5 dBd gain Heavy-duty, fiberglass construction Includes three 7" stainless steel radials Imp: 50_ UHF female (S0-239) connector Mast dia accepted: 1.81" x 2.44" Includes bracket...This product meets the oversized requirement per UPS/FedEx. The shipping weight reflected is the dimensional weight. This product also meets the large package requirement per UPS/FedEx. The estimated shipping cost will include this fee..