... adjust the accuracy frequency for fix your transmitter 1/4 wave Professional GP Antenna for 5w,7w, ... into interfaces, resulting in damage. *4.The only one of 1/4 wave GP antenna in the world, ... 4.VSWR: less than 1.5 5.Impedance: 50Ω 6.Power: 1W-100W (5w,7w,15w,25w,30w,50w,100w) 7.Cable connector ... : BNC or NJ(please advise us which one you need.) Package Include 1 × 1/4 wave Gp antenna 1 × ...