consult with professional HF antenna designers from some serious companies ( TCI, Grainger, Telefunken, Thomson, Brown Bovery, etc ) and ask them why they NEVER use copper (not coated) as antenna wire.ħ. you will make probably more DX contacts.Ħ. Put any piece of oxidized metal as antenna when the HF propagation is wonderful. DX will still be very difficult to obtain, if at all.ĥ. Even if you install the best state of the art HF antenna at 200 ft above ground, made with gold or silver wire and pure diamonds as insulators. is a very big challenge for a ham radio operator.Ĥ. Measuring HF antenna properties ( H-V pattern, directivity, radiation efficiency, polarisation, etc. You are not able to verify how your antennas are degrading in performance over the years, because the evaluation is directly related to the HF propagation and not to the antenna itself.ģ. Using copper wire as antenna during 40 - 50 years without any problems, is not giving a true answer of the problem, because you are not able to measure the radiation efficiency of your antennas. Any physics/chemistry book and any engineering book on semi-conductors will explain why.Ģ. Generally speaking, metal oxide is not a good conductor.
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