wireless08 - The Invisible Threat

A pretty good talk on interference affecting Wireless LANs by Mohamed Zouire of AirMagnet Inc.

Roughly divided into two types:

1) Interference caused by Wireless (802.11) devices. Main causes being: too many devices on the same channel; and adjacent channels being used (leave a 3 channel gap if possible).

2) Interference caused by other stuff on the same frequencies (2.4GHz & 5GHz): microwaves; bluetooth devices; video cameras; DECT phones; wireless mikes; and jammers.

Having tracked the cause of the interference (possibly by using AirMagnet's Spectrum Analyser) the general order to fix it might be: move it; shield it; try to work around it.

Good summary I thought.