> Well lets look at the riddle , swinging a radiator acree 20 or 30 megs of > bandwidth it will tune and still radiate but will it have appreciable gain > away from certain design points? > I think not . > >Laryn K8TVZ > where did I mention resonance ? > resonance of course being point normally considered highest gain so > matching 30 ft of wire and 1.85 megs wont work terribly well will it ? > > >
Resonance has nothing to do with the amount of gain an antenna has. Resonance only means that capacitive and inductive reactance are equal. Yes 30 feet of wire on 1.85 megs will radiate nearly as well as 240 feet will. The problem with 30 feet of wire will be getting power to it as the impedance is so low the loss in the matching network will be quite high. An antenna having to be resonant in order to be efficient is a common misconception by many. 73 Gary K4FMX
