User's Manual

Page 10 of 28 A8520E24A91 – Users Manual
Release Date: Dec 27
th
2010
Figure 2 A8520E24A91 topologies supported for different A8520E24A91 FW revisions
2.2. Adaptive Frequency Hopping
The purpose of using frequency hopping in a radio system is to provide diversity that allows
data throughput to be maintained even if interfering radio systems or the physical environment
(e.g. multipath fading) renders some RF channels unusable. In the 2.4 GHz ISM band, the
sheer amount of radio systems and the severity and dynamic nature of indoor fading
phenomena in typical operating environments require the use of this kind of diversity if a