User's Guide

Chapter 1: Working with the ER-1000
TR0190 Rev. A1 12
It is advisable to carry out a site survey prior to installation to determine what devices are
operating in the band that your EL-500 uses. To detect the presence of other 802.11 devices,
a tool such as Netstumbler (http://www.netstumbler.com/downloads/) can be used. A spectrum
analyzer can be used for further characterization of interference in the band.
1.4.1 AP Channel Selection
A site survey should be conducted to determine which access point channel will provide the
best performance. Some of the 802.11b/g channels that the EL-500HG’s radio can be
configured to use are overlapping. Only channels 1, 6, and 11 are non-overlapping.
Figure 2. 802.11b/g channel chart, showing top, bottom, and center frequencies for each channel