... Antenna for 5w,7w,15w,30w,50w,100w fm transmitter,it is much better than 1/4 wave Gp ... antenna 5w-100W 1/2 wave Professional FM Transmitter GP Antenna BNC SL16 This is a Professional ... /4 wave Gp antenna,it will make your FM transmitter Broadcast more far without much money. Specifications:Center Frequency ... ,we can customize for you ,and it will need 15 days.)Use for:5w,7w,15w,30w,50w,100w fm ...