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![]() "Cecil Moore" wrote ... 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* |
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