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Angle of radiation
Jimmie D wrote:
This afternoon while cleaning a closet I pulled out an old US map that had been marked with contacts I made back when I worked 10M a lot. After the local stations there is a big empty area on the map then I started making contacts again at about 300 miles. Antenna used was a 1/4 lambda groundplane with the radials drooping so to match 50 ohms. A chart I found indicates that this means I have a vertical angle of radiation of 50 to 60 degrees. Is this correct??. . . . No, it's not. An antenna doesn't have a single angle of radiation, but radiates at all angles. Roy Lewallen, W7EL |
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