User's Manual

Lightning surges can cause any electronic system to fail. It is assumed that in
lightning regions the AP has been mounted adjacent to a tap which contains surge
protection.
Causes of AP misalignment include:
a) a cherry-picker bucket bumping it or its mounting bracket
b) a utility worker using it as a foothold
c) vandalism.
Strand-mounted APs are not likely to be used as a foothold, but are still subject to
bucket-bumps and vandalism.
Interference at the Access Point can be caused by a new radio turning on in the 5.3
GHz band and being pointed mostly toward the AP. If the offending unit can be
located quickly, the owner will often cooperate with finding a mutually satisfactory
solution. Usually the small laptop computer types of WLAN equipment have
omnidirectional antennas and will not interfere with the AP. It usually has to be a
fixed radio with an outdoor high-gain antenna. Such antennas are often very visible
just by scanning nearby rooftops with binoculars.
ARCXtend manual, August 2003 6-3