For long-range point-to-point bridge links, dish antennas are preferred due to their narrow beamwidth and high gain. An 11 dBi dish antenna focuses energy more efficiently in a single direction, which reduces the amount of Intentional Radiator (IR) power needed to meet link budget requirements.
From CWDP-305:
“Dish antennas provide high gain and a narrow beam, making them ideal for point-to-point bridge links over long distances. This minimizes interference and maximizes EIRP efficiency.”
— Reference: CWDP-305 Official Study and Reference Guide, Chapter on Infrastructure Design
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