...and reasonable instrumentation and a good understanding of what is actually going on. "Difficult" or "hard" is a judgment call from one's own particular expertise and experience perspective. Antennas are a wonderful interest area of amateur and professional radio. Experiment and enjoy. Read good engineering books if you are interested in antennas.
73, Terry K4RX I don't know how deeply you understand directional arrays and networks, but you could probably make it work with a couple T-network tuners and some relays just by cut and try. It might take a little fiddling around listening to signals, but there will always be a combination of what you could do with a T network or two that would provide deep nulls. It is more "cookie cutter" to use series fed quarter wave elements with current feed (95% of people still do that wrong), but if you have a little patience and don't mind experimentation, you could certainly make it work. I phased dissimilar elements many times over the years, with the grossest mismatch a "T" phased against a shunt fed tower. All it takes is parts and patience. :-) 73 Tom All good topband ops know how to put up a beverage at night. _________________ Topband Reflector
