Tram 10280 Pre-Tuned 144MHz-148MHz VHF/430MHz-450MHz UHF Dual-Band Amateur Trunk or Hole Mount Antenna Kit with PL-259 ConnectorTram 10280 Pre Tuned 144MHz 148MHz VHF 430MHz 450MHz UHF Dual Band Amateur Trunk or Hole Mount Antenna Kit with PL 259 Connector Freq range: Pre tuned 144MHz 148MHz VHF 2. 4dBd gain 430MHz 450MHz UHF 4. 5dBd gain ; 37" tall chrome finish NMO mounting antenna with gold plated plunger type contact pin; Solid brass NMO mount with gold plated brass contact pin & high frequency, fully enclosed, fully shielded & fully weatherized zinc die cast housing ;