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loop antennas and noise suppresion
"Szczepan Bialek" wrote in message ... "Wayne" napisal w wiadomosci ... "Szczepan Bialek" wrote in message ... # My answer was to Sal. He wrote: "(Last year, I used a 20m dipole at 30 # feet, operating out of my van. # Everything floated above ground without incident and many QSOs.)" # The floor of the van is the plate and the surface of the Earth is the second # plate. # S* Just as a mental exercise, assume that the entire setup...van and antenna, is transported to a place in space where there is negligible capacitance to the earth. Is it your contention that the setup would operate any differently? # The Earth is in the space and the entire setup also. # The both need "neutralization" like the space-vehicle: # "Other proposed applications of large-area field emission sources[39] # include microwave generation, space-vehicle neutralization" # From: http://en.wikipedia.org/wiki/Field_electron_emission # # " Where the electrons are compacted the electrons tend to push each other # off. Where there # is a deficit of electrons, electrons are attracted from other sources". # # In space is the Solar wind (ions and electrons). # S* And if the van/antenna had been constructed on another planet before being sent into space, is the earth still required or just the other planet? |
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