From Dave G3YMC I am always a bit puzzled at how low pass filters work with a real antenna load, which is only 50ohms or anything near it at the resonant frequency of the antenna. At other frequencie
Alan, I comment on one part of your reply: To Bob, I think the efficiency of the PA is only high if you calculate the input power to the 'total' output power (wideband), the harmonic power doesnt 'im