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> I am planning to install a C4C 40-meter dipole on my > C3S that will be located at about 30-35 feet above the > ground. My ham friends who work 40 meter DX tell me > that a dipole located less than a half-wavelength > above the ground will have no direction capability and > because of its high angle of radiation, I am told that > this dipole may only be a local antenna. The various Handbooks, Antenna Books and assorted articles....treat the subject of antenna height in far more detail then can be contained in an e-mail. The simple answer is yes, but........ > > Others who have used a 40-meter dipole tell me that it > is quieter and has ground reflection gain not seen by > a vertical. See above. Horizontally polarized antennas are generally quieter than Vertical antennas. They also have a lower radiation angle than low (electrically) horizontal antennas. The advantage of a rotatable dipole is that you might be able to null QRM off the ends. Antennas are affected by their environment, soil, power lines, othe structures, hills, etc. Each installation, particularly in a restricted suburban location, will present a challange. Effective use of propagation will tend to offset installation handicaps. The 80M portion of my 5BDXCC was worked with a G5RV under my C3S at 35 feet. A 1/4 wave vertical was used on 40M. Jim -------------------------------------------- Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. Force12 Web Site: http://www.force12inc.com To Submit Message to the List: Force12Talk@qth.com To unsubscribe and view the Message Archive: see http://qth.com/force12/list For problems with the list: contact n4zr@qth.com |
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