ALink-5801a
Wireless LAN Outdoor Bridge
ALCON Telecommunications Co., Ltd.
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Picture
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Line-of-Sight
(LOS)
If there is any obstacle in the radio path, it may still be a radio link but the
quality and the signal strength will be affected. Ensuring the maximum
clearance from objects on a path is important to locate the antennas and the
height. For the long-distance links, the radio signals might be lost partially due to
the non-LOS issue.
As we setup the radio path for the wireless bridge link, it needs to consider
these factors:
• Avoid any partial line-of-sight between the antennas.
• Be aware of trees that may be near the path or obstruct the path.
• Make sure there is enough clearance from buildings and there is no any
building or construction blocking the path.
• Check the land topology between the antennas using topographical maps,
aerial photos, or even satellite image data.
• Avoid a path that may have the temporary blockage due to the moving
objects, such as cars, trains, or aircrafts.
Note:
For the wireless link less than 500 m, the IEEE 802.11a radio
signal will tolerate some obstacles in the path and may not even require a
visual line of sight between the antennas.
