Nokia RoofTop R242 Installation Manual
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Contents
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10 Nokia RoofTop™ Wireless Routing Installation Guide2.4 Antenna Selection2.4.1 Omnidirectional AntennasOmnidirectional antennas radiate spherically, providing equal coverage inall directions, and are best for multi-point links and forwarding sites.Because they receive and transmit signals in all directions, they are thebest antenna for most installations.Omnidirectional Antennas - Radiation Pattern2.4.2 Directional AntennasDirectional antennas focus their RF beam in narrow patterns in onedirection. Directional antennas provide communications over longerranges than omnidirectional antennas, but are much more limited in theareas they cover. Directional antennas maximize link distances. They arealso effective for simple, dedicated, point-to-point links.NOTE: Directional antennas limit future growth and prevent the wirelessmodem from repeating signals to other units. They should be used onlywhere an omnidirectional antenna will not work.Side View Top View |
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