User`s guide
ZyAIR B-5000 User’s Guide
Site Planning A-3
Where either of these conditions exists, shorter paths and adequate clearances are recommended.
Wind
Any system components mounted outdoors will be subject to the effect of wind. It is important to know the
direction and velocity of the wind common to the site. The mounting structure must be able to withstand
these forces as well as protect against damage to the wireless bridge components.
Antenna designs react differently to wind forces, depending on the location. This is known as wind
loading. Most antenna manufacturers will specify wind loading for each type of antenna manufactured.
Temperature Ranges
Temperature can adversely affect the radio link when phenomena such as temperature inversion or very
still air accompanied by stratification occur
See paragraph on Fog for further detail.
Lightning
The potential for lightning damage to radio equipment should always be considered when planning a
wireless link. There are a variety of lightning protection and grounding devices, whether located inside or
outside the site, which could be potentially damaged by a lightning strike.
Lightning protection requirements are based on the level of site exposure, the cost in the event of a link
downtime, local building codes and electrical codes. If the link is critical and the site is in an active
lightning area, attention to thorough lightning protection and grounding is critical.
Lightning Protection
To provide adequate lightning protection,
Install antennas in locations that are unlikely to receive direct lightning strikes.
Install lightning rods to protect antennas from direct strikes.
Make sure that cables and equipment are properly grounded to provide low-impedance paths for
lightning currents.
Install surge suppressors on telephone lines and power lines.
Interference
An important part of planning your Outdoor Wireless Bridge is the avoidance of interference.
Effects within the system or outside the system can cause interference. Good planning for frequencies and
antennas can overcome most interference challenges.