User's Manual Part 1

Appendix B WiFi Fundamentals
Spectrum Differences
WiFi Advisor Wireless LAN Analyzer User’s Guide
December 2014 22073751, Rev. 002 Page 53
5 GHz Spectrum
A lot of these frequencies are used for satellite communications (low power). That
means to them, WiFi is the interferer. U-NII stands for Unlicensed National Informa-
tion Infrastructure and was set aside primarily for WiFi use. Most of the world uses
the spectrum from 5.18 – 5.835 GHz. Note that another ISM band exists here (cord-
less telephones, point-to-point radios, baby monitors).
Figure 17 provides a map of the channel allocation for the 5 Ghz spectrum.
Figure 17 5G channel allocation