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On Feb 15, 6:46 pm, art wrote:
On 15 Feb, 15:29, (Richard Harrison) wrote: Art wrote: "My present antenna, which is for 160 m and above, is about the size of two shoe boxes and is less than 2:1 swr (50 ohm) across the band when situated at the tip of my tower." Outstanding! An effective antenna needs to be an appreciable portion of wavelength in some dimension. If Art`s antenna is an appreciable portion of 525 feet it can radiate well on 160 meters. Any length of wire carrying an RF current is capable of radiation. ******* Yes, but it is not useable if C and L for the length involved and frequency of use is not adhered to. Implicit in Maxwell's laws is that a radiator can be any size or shape as long as it is in equilibrium. Without the inclusion of that last word all laws of the masters are invalid. Define equilibrium. As far as I can tell, you seem to infer that being in "equilibrium", means that it is resonant. I hate to break it to you, but being resonant is no sure road to efficiency as a radiator of RF. How many hundreds of feet of wound 22 gauge wire does this device contain? Seems to me, if I ponder all the laws of the "masters", you have reinvented an air cooled dummy load that probably won't handle too much power before it becomes so hot as to melt whatever is close to it. Maybe I suggest a Heathkit "Cantenna" as a better oil cooled substitute that can be ground mounted for ease of use. You can blast it with your 8877 for short periods of time, and I doubt it will melt any plastic that is lying next to it. Requires no tower, and no need for garbage can lids. According to the law of Art, it is in equilibrium, and should satisfy all the requirements of the masters, whoever they may be, and wherever they may lie. MK |
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