"Cecil Moore" wrote
I don't know much about commercial AM transmitting systems.
Why not feed the towers with a gamma match?
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Radiation patterns are not as omnidirectional using this method as they are
when a tower is series-fed. The FCC frowns on them, especially for use in
directional arrays. The following link may be of interest:
http://www.dlr.com/dlrweb/papers/nabpaper/nabpaper.htm


RF

Visit http://rfry.org for FM broadcast RF system papers.