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#1
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On Nov 7, 10:26 am, Spam Trap wrote:
The Real "Ham radio herd mentality" is also demonstrated by the number of hookees swept up by these trolls. Yea, but you are missing the boat. These guys are our amusement. It would get way too boring if we didn't have "Heckle and Jeckle" to give us our daily dose of "radio mentality"... IE: the perverted load antenna = a full size monopole... That's a good one...lol..lol..lol.. Keep em coming! MK |
#3
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![]() "art" wrote in message oups.com... Most hams who strive for maximum radiation that is horizontally polarised place the radiator parallel to the earths surface. That is an example of herd mentallity. When the vectors of radiation fields and "curl" are summated the resulting vector is NOT along the axis of the radiator. For maximum horisontally polarised radiation it is this vector that must be parallel to the earths surface. By the way Maxwell confirms this but hams chose to ignore it. Yup, herd mentallity! Art A herd is by definition relatively unstructured. However, there may be one or a few animals which tend to be imitated by the rest of the members of the herd more than others. An animal taking this role is called a "control animal", since its behaviour will predict that of the herd as a whole. It cannot be assumed, however, that the control animal is deliberately taking a leadership role. Control animals are not necessarily, or even usually, those that are socially dominant in conflict situations, though they frequently are. |
#4
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On 7 Nov, 15:36, "Bob" wrote:
"art" wrote in message oups.com... Most hams who strive for maximum radiation that is horizontally polarised place the radiator parallel to the earths surface. That is an example of herd mentallity. When the vectors of radiation fields and "curl" are summated the resulting vector is NOT along the axis of the radiator. For maximum horisontally polarised radiation it is this vector that must be parallel to the earths surface. By the way Maxwell confirms this but hams chose to ignore it. Yup, herd mentallity! Art A herd is by definition relatively unstructured. However, there may be one or a few animals which tend to be imitated by the rest of the members of the herd more than others. An animal taking this role is called a "control animal", since its behaviour will predict that of the herd as a whole. It cannot be assumed, however, that the control animal is deliberately taking a leadership role. Control animals are not necessarily, or even usually, those that are socially dominant in conflict situations, though they frequently are. - Hide quoted text - - Show quoted text - Interesting. So in the case of amateur radio it is the ARRL who is the control animal because they are socially dominant. Very good! I always saw it as a group of lemmings where each animal has his nose stuck under the rear of the animal in front, often called brown nosing, in a pecking order. So what's in it for ARRL to keep angled radiators a secret by , keeping it out of the handbook, did they copy write it so they can take the secret to their graves? Best regards Art |
#5
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Art wrote:
"Most hams who strive for maximum radiation that is horizontally polarized place the radiator parallel to the earth`s surface." Reflection from the ionosphere nakes unpredictable changes in polarization. Nevertheless, the angle of arrival equals the angle of reflection at the ionosphere. Experience shows best results on a transmission path happen when the antennas at both ends of the path are complimentary. See E.A. Laport, "Radio Antenna Engineering" page 215, "High Frequency Antennas". Best regards, Richard Harrison, KB5WZI |
#6
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On 9 Nov, 15:12, (Richard Harrison) wrote:
Art wrote: "Most hams who strive for maximum radiation that is horizontally polarized place the radiator parallel to the earth`s surface." Reflection from the ionosphere nakes unpredictable changes in polarization. Nevertheless, the angle of arrival equals the angle of reflection at the ionosphere. Experience shows best results on a transmission path happen when the antennas at both ends of the path are complimentary. See E.A. Laport, "Radio Antenna Engineering" page 215, "High Frequency Antennas". Best regards, Richard Harrison, KB5WZI I have no problem with what you state when dealing with skip, But not all antennas use the skip phenomina such as satellite antennas,MRO antennas or those used for weather conditions and wind shear nd ofcourse any helical design antenna .. What I was pointing out that if one was looking for maximum gain of a specific structure then the tipping angle comes into play. If you are looking for "max gain" without reference to what type of structure of polarization then yes, go ahead and do the standard axis parallel to the ground method if you wish. I believe that most radio hams recognise that a vertical polarised antenna is not the best type to use when commnicating over ground with horizontally polarised antennas and I suspect that even CBers are aware of that to. Art |
#7
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Art wrote:
"I believe that most hams recognise that a vertical polarised antenna is not the best type to use when communicating over ground with horizontally polarised antennas and I suspect that even CBers are aware of that too." Crosspolarization creates an extreme loss if the ionosphere isn`t in the path constantly mixing the polarization. For several years I worked in what was then the world`s largest shortwave broadcasting plant. All our antennas for many bands and target areas were horizontally polarized. I`ve visited many commercial shortwave plants and it`s the same story. Horizontal polarization predominates. Our antennas were designed for operation over 1-hop or 2-hop paths. They could be received with any piece of wire in any attitude but would likely work best with a rhombic or curtain that exactly matched the transmitting antenna but on the receiving end of the path. Those worked very well indeed on the program relay circuits. C.B. is supposed to be a line-of-sight service. As mobile stations which may at any moment be located on any azimuth are involved, vertical antennas which don`t discriminate against any azimuth are likely the best choice for base and mobile stations which work together. Best regards, Richard Harrison, KB5WZI |
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