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What is the difference between unity gain, 3 dB gain and 5 dBi gain?

April 26, 2017DB dBi difference gain Unity

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What is the difference between unity gain, 3 dB gain and 5 dBi gain?

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Unity (0 dBd), 3 and 5 dBd designs differ by the number of elements incorporated to achieve increased gain. Gain increase is achievable by stacking multiple elements in a collinear manner to compress the vertical plane pattern and direct more energy toward the cell site.