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Richard Clark wrote:
Cecil Moore wrote: http://www.w5dxp.com/rhombicT.EZ This is a terminated rhombic in free space. The termination resistor is 880 ohms and the 880 ohm feedpoint SWR is 1.032:1. Which, of course, has nothing to do with Standing Waves ON THE ANTENNA. The SWR on the antenna has nothing to do with the standing waves on the antenna?????? Good grief, Richard, it makes sense now. You don't even know what a standing-wave antenna is - so allow me to explain. An antenna has a characteristic impedance range. If the terminating resistor is in the center of that range, *reflections are reduced to a negligible value*. That's why terminated antennas are (usually) classified as *traveling-wave antennas* - because they minimize reflections. The ends of a dipole are (surprise) an open-circuit. All of the forward wave is reflected. That's why a dipole is a *standing-wave antenna*. There is nothing except radiation that can reduce the reflections. Sorry, nothing else you could have to say would make any difference with a gross misconception like that. -- 73, Cecil http://www.w5dxp.com |
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