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#1
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Walter Maxwell wrote in message . ..
Bill, KM4LS, forwarded my emial to him to Ted Hart, W5QJR. The following is Ted's response to me: Hi Walter, Bill sent me your note. Good to hear your view point on the EH Antenna. Sorry you have not moved your brain into this century. Walter is over 100 years old? Maybe they didn't have U-haul trailers to haul brain matter in 1904? 100 Years ago man could not fly. And 100 years later he still can't, unless he is on some kind of drug that makes him think he is... If you read out web site you will find that our AM Broadcast antenna out performs a standard 1/4 wave AM Broadcast antenna. Boy howdy... http://groups.google.com/groups?hl=e...ch%26me ta%3D Note the local response to this "proof"... Note the near unanimous approval of this "proof"....Not.... :/ We also have commercial applications. Further, by direct comparison the EH Antenna outperforms wire antennas for Ham use. Proof by misapplication of the product? Har...Har...Har... I have proven the EH Antenna. I have proven my old 1968 ford truck, but I have never been prone to think it can fly to Dallas like a Southwest boeing 737-300. Sure, I could strap a JATO rocket to it and probably become airborne, but the thrust reversers "drum brakes", probably would be insufficient to stop me from becoming a wet spot on the side of a Love field hanger upon landing. I did stay at a Holiday Inn last night though...Would this count as "proof" ??? MK |
#2
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Mark wrote,
Walter Maxwell wrote in message ... Bill, KM4LS, forwarded my emial to him to Ted Hart, W5QJR. The following is Ted's response to me: Hi Walter, Bill sent me your note. Good to hear your view point on the EH Antenna. Sorry you have not moved your brain into this century. Walter is over 100 years old? Maybe they didn't have U-haul trailers to haul brain matter in 1904? 100 Years ago man could not fly. And 100 years later he still can't, unless he is on some kind of drug that makes him think he is... If you read out web site you will find that our AM Broadcast antenna out performs a standard 1/4 wave AM Broadcast antenna. Boy howdy... http://groups.google.com/groups?hl=e...17plnv027cn5lo 0ibuadd6vieb1q4g1ajv%404ax.com&rnum=2&prev=/groups%3Fhl%3Den%26lr%3D%26ie% 3DISO-8859-1%26q%3Deh%2Bantenna%26btnG%3DGoogle%2BSearch%26me ta%3D Note the local response to this "proof"... Note the near unanimous approval of this "proof"....Not.... :/ We also have commercial applications. Further, by direct comparison the EH Antenna outperforms wire antennas for Ham use. Proof by misapplication of the product? Har...Har...Har... I have proven the EH Antenna. I have proven my old 1968 ford truck, but I have never been prone to think it can fly to Dallas like a Southwest boeing 737-300. Sure, I could strap a JATO rocket to it and probably become airborne, but the thrust reversers "drum brakes", probably would be insufficient to stop me from becoming a wet spot on the side of a Love field hanger upon landing. I did stay at a Holiday Inn last night though...Would this count as "proof" ??? MK This is an old story: someone comes up with what he thinks is some way to do the impossible and becomes so fanatically attached to his idea that he is willing to defend it to the death no matter how much proof there is to the contrary (and try to make a buck off it,too). Very few people take the EH antenna seriously any more. I'm surprised Walt even took the trouble to argue with these fellows. Tom Donaly, KA6RUH |
#3
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![]() ----- Original Message ----- From: Walter Maxwell To: Ted Sent: Tuesday, January 13, 2004 3:20 PM Subject: EH Antenna Hello Ted, Thank you for your response to my note to Bill. Ted, I'm sorry to have rained on your parade, but I have not seen any proof that your antenna outperforms any Hertzian antenna as you claim. As I read in the 'Article' appearing on your web site, you are claiming that when your 'EH' is at 1/4 wl above ground it has a 2.25 dB gain over a standard 1/4 wl vertical. I have reviewed very carefully the engineering document prepared by the broadcast consulting firm of Graham Brock, Inc., who performed extensive field strength measurements on your EH antenna at experimental WK4XVQ in Eatonton, GA, operating on 1520 KHz. To summarize very briefly, their report first shows an average of approximately 1.1 dB less power radiated than the reference standard antenna. Second, it is noted that the test antenna atop a 90-foot tower was coupled to the standard WKVQ tower during the measurements, which is very likely the reason the azimuthal plot of your EH antenna is scalloped rather than circular. I'm sure you're aware that nearby objects that are resonant at the measurement frequency will distort the readings and thus distort the resulting data. What was done at the feedpoint of the WKVQ antenna to eliminate the possibility of its becoming a part of the antenna system? Were the input terminals shorted? Left open? Were any measurements made under both of these conditions to determine whether the the WKVQ antenna was performing as a parasitic radiator? From the measurements performed by the Graham Brock engineers the resulting data shows evidence that that rather than achieving gain over a standard antenna, the EH antenna performs less well than the standard antenna. At this point I'd like to repeat what I stated earlier concerning the concept of your EH antenna's performance resulting from changing the time relationship between the E and H fields to increase the radiation. What I stated earlier is that the development of the continuous alternating E and H fields cannot be changed in any way--not by changing the phase of the source current, or by any other means. The laws set forth by electromagnetic theory are immutable. And I also repeat--the antenna you believe to be performing in a new manner is simply a shortened, inductively-loaded Hertzian antenna performing in its conventional manner. I believe you should consider the following academic treatment that should help convince you that you cannot get additional power for nothing. Assume a 1/4 wl vertical antenna with zero ohmic resistance working over perfect ground. In this condition the only resistance in the system is radiation resistance, and ALL power delivered to the antenna is radiated. Consider now an imaginary hemisphere surrounding the antenna. When power P is delivered to the antenna and all of the power radiated is then integrated over the entire hemisphere, the integrated power will equal power P exactly. Now, because all of the power delivered to the antenna is radiated, any increase in radiated power due to some change in the configuration of the antenna is impossible. Therefore, this constitutes proof that your claim of gain with the EH configuration is invalid. You say you have three patents on the EH. In so doing you have accomplished what many before you have accomplished--outwitting the patent examiner who lacked sufficient knowledge of the subject to recognize an invalid concept in the patent application, and granted the patent. You may not have been aware that hundreds of patents have been declared invalid for this specific reason. Ted, I have no doubt that you honestly believe that your EH concept is correct and valid, and that your antenna is performing within that concept. However, now that you are made aware of the invalidity of the concept, and if you continue to manufacture and sell your antenna as advertised to perform as you say it does, then you must also come to believe you would be misleading the public. In this litigious society don't be surprised if someday an attorney hands you a paper claiming fraud. I would not like to see that happen. Finally, if you still choose to believe my comments are incorrect, then I would suggest you consult with other RF engineers to obtain their expert opinion, many of whom have far greater intellect on this subject than I. You can find some eminently qualified engineers in the news group rraa (rec.radio.amateur.antenna) by simply going to 'find' and inserting 'EH'. Cordially, Walt, W2DU |
#4
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Walter,
You said: "When power P is delivered to the antenna and all of the power radiated is then integrated over the entire hemisphere, the integrated power will equal power P exactly. Now, because all of the power delivered to the antenna is radiated, any increase in radiated power due to some change in the configuration of the antenna is impossible. Therefore, this constitutes proof that your claim of gain with the EH configuration is invalid." I disagree. I think all you've asserted is conservation of energy, not whether or not the antenna has gain. Joe W3JDR |
#5
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On Wed, 14 Jan 2004 00:01:54 GMT, "W3JDR" wrote:
because all of the power delivered to the antenna is radiated, any increase in radiated power due to some change in the configuration of the antenna is impossible. Therefore, this constitutes proof that your claim of gain with the EH configuration is invalid." I disagree. I think all you've asserted is conservation of energy, not whether or not the antenna has gain. Hi Joe, Walter has asserted that there is a constancy of power confirmed by total integration. Any increase in radiation with the same applied power is impossible by definition. One can observe a gain relative between two antennas and this would require significant differences in the two patterns. However, the data from the FCC methods of testing prove there is no difference. Except, of course, by that due to the nearby resonant structure which perturbs the EH field slightly (which, when wholly integrated reveals the familiar low efficiency of the EH relative to the nearby standard tower). 73's Richard Clark, KB7QHC |
#6
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Richard:
"One can observe a gain relative between two antennas and this would require significant differences in the two patterns. " I believe this is in line with what Ted says...the EH purportedly has vertical adjustable pattern depending on the length to diameter ratio of the cylinders. "However, the data from the FCC methods of testing prove there is no difference. " Well, that's the way I interpreted the data too. However, I don't believe this was a 3 dimensional measurement, was it? Joe W3JDR |
#7
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Joe, W3JDR wrote:
"However, I don`t believe this was a 3 dimensional measurement, was it?" Purpose of 3-D pattern checks would present high-angle radiation if it exists as a possible source of night time interference. Primary service only includes non-interfered ground wave coverage of a station. Best regards, Richard Harrison, KB5WZI |
#8
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On Wed, 14 Jan 2004 11:01:47 GMT, "W3JDR" wrote:
Richard: "One can observe a gain relative between two antennas and this would require significant differences in the two patterns. " I believe this is in line with what Ted says...the EH purportedly has vertical adjustable pattern depending on the length to diameter ratio of the cylinders. That can only be a function of physical size and wavelength, or of physical distance between sources (emitters) in terms of wavelength. Neither condition exists (the antenna is small, and is only one source). Beam steering and beam focusing antennas exhibit BOTH of these characteristics, the eh neither. "However, the data from the FCC methods of testing prove there is no difference. " Well, that's the way I interpreted the data too. However, I don't believe this was a 3 dimensional measurement, was it? Hi Joe, There is little point in speculating about radiation straight up. If that is the only benefit to the antenna, it is certainly no benefit to the listener (definition of a Dummy Load). Field tests prove the listener enjoys no advantage from this speculative gain. Simple fact of the matter is revealed at the test site. Are they using an eh, or the standard quarterwave over standard radials? The acid test of capitalist greed has eroded these fairy-tale claims. 73's Richard Clark, KB7QHC |
#9
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Tdonaly wrote:
This is an old story: someone comes up with what he thinks is some way to do the impossible and becomes so fanatically attached to his idea that he is willing to defend it to the death no matter how much proof there is to the contrary (and try to make a buck off it,too). Yeah, religions *are* silly. At least he's not wasting the taxpayers' money on the faith-based antennas. WA7AA -- Anti-spam measu look me up on qrz.com if you need to reply directly |
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