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When is a corner reflector a better choice than an omni-directional antenna for AIS?

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When is a corner reflector a better choice than an omni-directional antenna for AIS?

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Some base stations are located on shorelines where it is only necessary to ‘see’ in one direction, and in fact ‘seeing’ in all directions would be noisy and result in shorter reception ranges. This makes a directional antenna a better choice. For example: a base station site on the 12th story of a 15 story building, with the antenna mounted to the side of the building. This may be a port authority, or the offices of a tug company perhaps. AIS is a robust tool for both navigation and security.

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