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#1
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Your lost as bad as last years Easter egg.
Go back to school. Wherever you have gotten the antenna info apply it . Learn something, don't just try to quote out of a book, any one can do that. Your very confused. I need to get back to some serious work designing antennas. "lancer" wrote in message ... On Wed, 29 Oct 2003 04:42:45 GMT, "BuckEye" wrote: "Lancer" wrote in message The number (.91 to .99) are correct for the difference between an antenna in free space and erected near earth. Its not from the velocity factor of the antenna. Its because the antenna is close to the earth and other conductive objects (tree, buildings and power lines) which present stray capacitance that tunes the antenna lower in frequency than a free space antenna. Its called "end effect" and is more prevelant the closer an antenna is other objects. If so how do you explain in some long wire antennas its even 1.05 times longer than the freespace. I guess you need to tell me what longwire antenna you are referring to. The end effects only operate on the end sections of the antenna, in the parts on the antenna the effects are absent, and the wire length is approximately that of an equivalent length in free space. |
#2
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On Wed, 29 Oct 2003 17:57:32 GMT, "BuckEye" wrote:
Your lost as bad as last years Easter egg. Go back to school. Wherever you have gotten the antenna info apply it . Learn something, don't just try to quote out of a book, any one can do that. Your very confused. I need to get back to some serious work designing antennas. Ok, have fun. |
#3
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![]() BuckEye wrote: Your lost as bad as last years Easter egg. Go back to school. Wherever you have gotten the antenna info apply it . Learn something, don't just try to quote out of a book, any one can do that. Your very confused. I need to get back to some serious work designing antennas. Instead of doing serious, or not-so-serious antenna design, you might take a look at some of those books you imply we shouldn't quote from, and apply what you've read. And you're wrong, not every one can do that, much less understand what they read (got a mirror?). There are some things that you can 'infer' from what you've read, not everything has to be spelled out in black and white. That process is the one you refer to as thinking... Have fun designing antennas, I do. 'Doc PS - Around here they say, "Don't know whether he's washing or hanging out.". |
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