February 2003
Intermediate to advanced
352 pages
8h 35m
English
Content preview from Deploying License-Free Wireless Wide-Area NetworksBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Obtaining Wireless Line-of-Sight Paths
When a wireless signal encounters an obstruction, the signal is always attenuated and often reflected or diffracted. With outdoor wireless WANs, the attenuation from these encounters is usually so great that not enough signal remains to be detected at the other end of the link. When you design a wireless WAN link, it is important to work to achieve a wireless line-of-sight (LOS) path. This is a path that has no obstructions to significantly block, diffract, absorb, or attenuate the wireless signal. A wireless LOS path typically requires a visual LOS path plus additional path clearance to account for the spreading of the wireless signal. The following paragraphs describe visual and wireless LOS paths and ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.