Tram(R) 1477-B Pre-Tuned 144MHz-148MHz VHF/430MHz-460MHz UHF ;Amateur Dual-Band Base Antenna (Black Fiberglass) *Pre-Tuned 144MHz-148MHz VHF/430MHz-460MHz UHF ;Amateur Dual-Band Base Antenna (Black Fiberglass) *• Pre-tuned ;• No tuning needed;• 43" tall ;• Single section;• 3.5dBd actual gain VHF & 6dBd actual gain UHF;• 1/2 wave VHF & 5/8 over 5/8 wave UHF;• Omnidirectional;• Black fiberglass construction;• UHF female (SO-239) connector;• Mast dia accepted: 1 13/16"-2 7/16";• Imp: 50ohm ;• 150W power rating;• 3"-7" stainless steel radials;• Includes mounting bracket and hardware;• Coax cable sold separately; * WARRANTY: NINETY DAYS