DragonWave Horizon COMPACT - Avoid the Fresnel Zone; Figure 2-6 WRONG! Obstruction of the Fresnel Zone; Figure 2-7 WRONG! Trees Within the Fresnel Zone Obstruct the Signal

Aligning the Horizon Compact System
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Horizon Compact Release 1.01.00 Wireless Ethernet Product User Manual – Volume 2
2.2.2 Avoid the Fresnel Zone
The Fresnel zone is an area of the antenna radiation pattern that lies mid way between the two system
antennas. The size of this area is dependant upon the frequency being used and the distance between
antennas. You should avoid having any obstructions within the Fresnel zone. Note that you may be able
to see the far end antenna without obstruction, but still have obstacles in the Fresnel Zone. Signal quality
will deteriorate if obstacles encroach too deeply into the Fresnel zone. Encroaching up to the 60% mark is
acceptable.
Figure 2-6 WRONG! Obstruction of the Fresnel Zone
Figure 2-7 WRONG! Trees within the Fresnel Zone Obstruct the Signal