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I am adding RX site to a local high school for better in building coverage for the local police. Today we did coverage testing with a Larid 3.5DB fiberglass and had mostly favorable results.

My question for you guys is, should I stick with the 3.5DB larid or should I go with a unity gain? Or perhaps a DB222. I ask these as I know I am trying to cover directly below the antenna and the immediate area surrounding. I have heard that gain antennas are not as good for this as they focus more on the horizon. Can someone better explain this? I like the idea of a DB 222 as they are more durable than the fiberglass.

Thanks.
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