ZyXEL Communications 5 Series User Manual

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Appendix C Wireless LANs
ZyWALL 5/35/70 Series User’s Guide
800
Positioning Antennas
In general, antennas should be mounted as high as practically possible and free of 
obstructions. In point-to–point application, position both antennas at the same height and in a 
direct line of sight to each other to attain the best performance. 
For omni-directional antennas mounted on a table, desk, and so on, point the antenna up. For 
omni-directional antennas mounted on a wall or ceiling, point the antenna down. For a single 
AP application, place omni-directional antennas as close to the center of the coverage area as 
possible. 
For directional antennas, point the antenna in the direction of the desired coverage area.