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>... 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. > >Others who have used a 40-meter dipole tell me that it >is quieter and has ground reflection gain not seen by >a vertical. It will be less directive, and will have a generally higher radiation angle than a higher antenna, but "no" directivity and "only a local antenna" are simply wrong. The ground reflection gain is maximum at a higher angle than if the antenna were higher, but a little modeling will show that a relatively low dipole will outperform a ground mounted vertical at much lower take-off angles than usually believed. 73, Pete N4ZR Sometimes a tower is just a tower -------------------------------------------- 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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