When designing an outdoor Wireless network one of the first questions to ask is what is between point A (antenna 1) and point B (antenna 2). The path between two antennas is referred to as the Line of Sight. There are three main categories of Line of Sight, the first being full Line of Sight (LOS) where no obstacles reside between the two antennas, the next is called Near Line of Sight (nLOS) which includes partial obstructions such as tree tops between the two antennas, and lastly Non Line of Sight (NLOS) where full obstructions exist between the two antennas. By determining the specific line of sight conditions in the WiFi network area you can then determine the correct type of wireless system to install.
The Fresnel Zone referenced in the diagrams above is an electromagnetic phenomenon, where light waves or radio signals get diffracted or bent from solid objects near their path. The radio waves reflecting off the objects may arrive out of phase with the signals that traveled directly to the receiving antenna thus reducing the power of the received signal.
As Google Hangouts Meet hardware expands its presence in conference meeting market, the needs of longer USB 3.0 extension solutions also grow rapidly. A relatively larger meeting room setup with Google Hangouts Meet hardware often requires longer USB extension cables for both cameras and hubs.
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Single mode cables have a small diameter 9 micron core allowing one pathway of light. Multimode cables have two different large diameter core sizes 50 and 62.5 micron allowing multiple pathways of light.