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Interesting antenna?
http://www.aftenposten.no/english/lo...ticleID=609108
I've always assumed that the performance of ferrite-rod antennas in transmitting applications was limited by core saturation. Wonder if there's anything to this "invention"? -- jm ------------------------------------------------------ http://www.qsl.net/ke5fx Note: My E-mail address has been altered to avoid spam ------------------------------------------------------ |
In article ,
says... http://www.aftenposten.no/english/lo...ticleID=609108 I've always assumed that the performance of ferrite-rod antennas in transmitting applications was limited by core saturation. Wonder if there's anything to this "invention"? -- jm ------------------------------------------------------ http://www.qsl.net/ke5fx Note: My E-mail address has been altered to avoid spam ------------------------------------------------------ not much info there, but i've read articles about russian experiments on small antennae and something about a capacitive antenna. somewhere in the jumble, i came across a theory/claim supposedly originated by Nikolai Tesla. the theory being that applying a large voltage - low freq. ac, dc... i don't remember - to a short antenna would set up an electrically large antenna by virtue of the electric field. say you applied 1000V to a 1m whip. that's 1000V/m. or it's 1V/m over a length of 1000m effective antenna length. that's the theory... key word "theory". brs, mike |
In article t,
Active8 wrote: In article , says... http://www.aftenposten.no/english/lo...ticleID=609108 I've always assumed that the performance of ferrite-rod antennas in transmitting applications was limited by core saturation. Wonder if there's anything to this "invention"? -- jm ------------------------------------------------------ http://www.qsl.net/ke5fx Note: My E-mail address has been altered to avoid spam ------------------------------------------------------ not much info there, but i've read articles about russian experiments on small antennae and something about a capacitive antenna. somewhere in the jumble, i came across a theory/claim supposedly originated by Nikolai Tesla. the theory being that applying a large voltage - low freq. ac, dc... i don't remember - to a short antenna would set up an electrically large antenna by virtue of the electric field. say you applied 1000V to a 1m whip. that's 1000V/m. or it's 1V/m over a length of 1000m effective antenna length. that's the theory... key word "theory". brs, mike Saturating the air becomes a problem. Coronas will sap away the power and slowly incinerate the antenna with ozone. |
In article t,
Active8 wrote: In article , says... http://www.aftenposten.no/english/lo...ticleID=609108 I've always assumed that the performance of ferrite-rod antennas in transmitting applications was limited by core saturation. Wonder if there's anything to this "invention"? -- jm ------------------------------------------------------ http://www.qsl.net/ke5fx Note: My E-mail address has been altered to avoid spam ------------------------------------------------------ not much info there, but i've read articles about russian experiments on small antennae and something about a capacitive antenna. somewhere in the jumble, i came across a theory/claim supposedly originated by Nikolai Tesla. the theory being that applying a large voltage - low freq. ac, dc... i don't remember - to a short antenna would set up an electrically large antenna by virtue of the electric field. say you applied 1000V to a 1m whip. that's 1000V/m. or it's 1V/m over a length of 1000m effective antenna length. that's the theory... key word "theory". brs, mike Saturating the air becomes a problem. Coronas will sap away the power and slowly incinerate the antenna with ozone. |
http://www.aftenposten.no/english/lo...ticleID=609108 not much info there, Here's some more info: http://www.ancom.no/presentation01.htm I saw it on Norwegian TV a week or two ago, and it sounded impressive to me. Sverre www.qsl.net/la3za |
http://www.aftenposten.no/english/lo...ticleID=609108 not much info there, Here's some more info: http://www.ancom.no/presentation01.htm I saw it on Norwegian TV a week or two ago, and it sounded impressive to me. Sverre www.qsl.net/la3za |
In article t,
Active8 wrote: In article , says... http://www.aftenposten.no/english/lo...ticleID=609108 I've always assumed that the performance of ferrite-rod antennas in transmitting applications was limited by core saturation. Wonder if there's anything to this "invention"? -- jm ------------------------------------------------------ http://www.qsl.net/ke5fx Note: My E-mail address has been altered to avoid spam ------------------------------------------------------ not much info there, but i've read articles about russian experiments on small antennae and something about a capacitive antenna. somewhere in the jumble, i came across a theory/claim supposedly originated by Nikolai Tesla. the theory being that applying a large voltage - low freq. ac, dc... i don't remember - to a short antenna would set up an electrically large antenna by virtue of the electric field. say you applied 1000V to a 1m whip. that's 1000V/m. or it's 1V/m over a length of 1000m effective antenna length. that's the theory... key word "theory". You're misusing the word "theory." You mean hypothesis. I know, I know, I'm nitpicking. But I once was chewed out by a physicist at MIT for misusing the word when I was temping there. Ouch. Al PS: theory - a proven fact which explains an aspect of nature; i.e., the Theory of Relativity. hypotheses - A tentative explanation that accounts for a set of facts and must be proven by further experimentation. -- There's never enough time to do it right the first time....... |
In article t,
Active8 wrote: In article , says... http://www.aftenposten.no/english/lo...ticleID=609108 I've always assumed that the performance of ferrite-rod antennas in transmitting applications was limited by core saturation. Wonder if there's anything to this "invention"? -- jm ------------------------------------------------------ http://www.qsl.net/ke5fx Note: My E-mail address has been altered to avoid spam ------------------------------------------------------ not much info there, but i've read articles about russian experiments on small antennae and something about a capacitive antenna. somewhere in the jumble, i came across a theory/claim supposedly originated by Nikolai Tesla. the theory being that applying a large voltage - low freq. ac, dc... i don't remember - to a short antenna would set up an electrically large antenna by virtue of the electric field. say you applied 1000V to a 1m whip. that's 1000V/m. or it's 1V/m over a length of 1000m effective antenna length. that's the theory... key word "theory". You're misusing the word "theory." You mean hypothesis. I know, I know, I'm nitpicking. But I once was chewed out by a physicist at MIT for misusing the word when I was temping there. Ouch. Al PS: theory - a proven fact which explains an aspect of nature; i.e., the Theory of Relativity. hypotheses - A tentative explanation that accounts for a set of facts and must be proven by further experimentation. -- There's never enough time to do it right the first time....... |
In article ,
says... http://www.aftenposten.no/english/lo...ticleID=609108 not much info there, Here's some more info: http://www.ancom.no/presentation01.htm I saw it on Norwegian TV a week or two ago, and it sounded impressive to me. Sverre www.qsl.net/la3za geeze. a one sentence per page presentation that tells me nothing. i wonder how it works. i can finally build an HF shoe phone and those trees won't wreck the intergalactic commo array on the fuel truck that services my flying saucer. brs, mike |
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