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On Oct 21, 11:35*am, "Szczepan Bialek" wrote:
*"Cecil Moore" ... On Oct 21, 3:09 am, "Szczepan Bialek" wrote: 1. Electron must flow from the antenna to the ground, Nope, RF electrons don't actually flow. They essentially vibrate in place. The same is with the all AC. If between the live line and the ground is the diode "Electron must flow from the line to the ground". "For a copper wire of radius 1 mm carrying a steady current of 10 amps, the DC drift velocity is only about 0.24 nanometer per microsecond." At 10 MHz, the electrons would vibrate back and forth at about 0.01 nanometer per 0.1 microsecond. Consider how large 0.01 nanometer really is so for all practical purposes, electrons don't flow at all at HF frequencies. Electrons at HF are just a bucket brigade for the photons that deliver the RF energy to the diode detector. Unless a circuit is at DC steady-state, photons are involved, i.e. RF involves photons which constitute the RF fields and RF waves. No matter how big the back and forth are. If is a diode electrons must flow in one direction. Do not be lazy and measure it. S* I can not debate your particular area other than to point what I have in actuality. By removing all reactance especially the magnetic field the current flow removed itself from the material and travels on the surface. This is not unusual as superconductors drop to zero resistance when the magnetic field is canceled or removed. There are only two resistances in radiation and if no skin depth is then generated then the material and its resistance is removed from Maxwell's equations Now one can question my understanding as to what is happening but the fact is my antenna swr does not go above 3:1 no matter what band I am on! Yes, by not understanding what is really happening it would be easy to say "dummy load " but that is not the real answer. So I would ask all what exactly is impossible about the sequence of event that I describe while adding that computer programs confirm it? By the way the antenna is sitting om the grass as height does not affect dish antennas! |
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