FM broadcast antenna HIGH GAIN COLINEAR ALUMINUM ¾ Wave

Looking for a solution giving gain similar to 2 bay vertical dipoles with perfect omnidirectional coverage and have some space available at the top of a roof or a tower? Than this is the antenna for you. 2-dipoles mounted at the side of the tower will not give perfect omni-directional coverage; this antenna at the top of a tower will. 

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