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Well, now that Tweedledum and Tweedledumber have both thrown
their teddies out of the pram, perhaps in this NG we can get back to discussing the characteristics of antennae, and discussion of the mechanisms which make antennae tick, but in a mature and civilised manner? -----ooooo----- It is well established that short antennae are poor performers (and practical experiments on the CFA showed that). More evidence is now available from the world of 137kHz where (unless you are a landowner with a disused railway line several miles long!) it is necessary to feed 1kW into the antenna in the hope of getting 1W ERP out of it. Having studied EM theory well past the expression of Maxwell's Equations over 40 years ago, and having held what is now a Full Licence for 44 years, I mused on whether the poor performance of short antennae might somehow be a feature of the medium, AKA Aether, although all texts derive from electron theory. For example, the electron is not a point phenomenon, simply because of the electric field that extends out to infinity, and therefore, the Aether is somehow made up of all the electrons in existence! I posited that perhaps the reason for the poor performance of short antennae was that the Aether needed to experience a twist of the electric field, and the bigger the twist, the greater the radiation. -----ooooo----- Furthermore, when considering the behaviour of long antennae (including the half wave dipole) it occurred to me that parts of the antennae would be carrying waves that instantaneously would be 180 degrees out of phase with each other, and that henceforth, the expanding wavefront must therefore have a phase modulation around its periphery. -----ooooo----- Whether my suppositions are correct remains to be seen, but no-one yet has discussed the suppositions, although a number have resorted to gratuitous personal abuse whilst replaying some of their mental tape recorders on irrelevant sidetracks. No-one is obliged to take part in any thread so please ignore this one if you cannot bring yourself to consider what has been posited without infantile outbursts; infantile outbursts that do nothing for amateur radio in general or this NG in particualr. |