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#1
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And he's off again. I gained a lot of peace when I put "John Smith" and
Jesus as the very first two entries in my filter list some time ago. You now have the distinction of being the third -- just below Jesus. It's really a shame -- on those rare instances where you can be coaxed into commenting without being compelled to steer the subject to your favorite obsession, you really do have a lot to offer. But the duty cycle is just too low -- it's not worth it to me. Bye. Roy Lewallen, W7EL Cecil Moore wrote: Roy Lewallen wrote: In the steady state, there is no test which can be devised that can distinguish an antenna (including feedline, if desired) from a black box containing lumped components -- a lumped component circuit(*). You can't distinguish between a resonant 1/2WL dipole and a dummy load using a field strength meter? :-) You can't distinguish between a dummy load impedor and a resonant dipole impedance? How about just looking to see if a physical impedor exists? Those two impedances even have different definitions in the IEEE Dictionary. Cecil, if you feel a need to expound yet more on your theories, please do so in one of the many threads you've come to dominate already, start a new one, or concentrate your efforts on your forthcoming QEX article. I hope you'll let us try and make an objective and hopefully helpful contribution from time to time on this newsgroup without your constantly attempting to steer the discussion to your theories. Their not my theories, Roy. For instance, the IEEE Dictionary distinguishes between the (virtual) feedpoint impedance of a resonant antenna and the impedance of an impedor, e.g. a dummy load. Those two impedances have *different* definitions. A dummy load impedor is the *cause* of the load V/I ratio. The resistance of a resonant 50 ohm antenna is the *effect* of the feedpoint (superposed-V/superposed-I) ratio. Isn't it past time for completely ignoring cause and effect? |
#2
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"Richard Fry" wrote:
... I am asking for comments on what I wrote -- ________________ Thanks to all who responded. Now to process those responses. RF |
#3
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Richard Fry wrote:
... I am asking for comments on what I wrote -- ________________ Thanks to all who responded. Now to process those responses. RF One final comment: this thread shows how difficult it can be to distil a complex subject down to a few paragraphs, without making generalizations that will sometimes be incorrect. It can never be done in a single pass, so all credit for making the effort and for taking the comments on board. -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek |
#4
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Ian:
AYE!!! And being the uncouth slob I am, and holding the motto, "Whatever works!" I get my butt kicked a lot... frown John "Ian White GM3SEK" wrote in message ... Richard Fry wrote: ... I am asking for comments on what I wrote -- ________________ Thanks to all who responded. Now to process those responses. RF One final comment: this thread shows how difficult it can be to distil a complex subject down to a few paragraphs, without making generalizations that will sometimes be incorrect. It can never be done in a single pass, so all credit for making the effort and for taking the comments on board. -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek |
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