5GHz channel usage – no relief here for ACI…65% of networks in 5GHz have issues with their channel plan. The most popular usage is in the UNII-1 band (Ch 36-48). Channel 36 is the most prevalent likely due to equipment defaults. Channel 40 likely takes a dip due to the use of 40Mhz width used on Channel 36. A similar pattern is seen on channel 44, 149 and 157. Within UNII-2, the Terminal Doppler Weather Radar SHOCKING! (Not?) 98% of sites using 2.4GHz experience co-channel interference, 90% for 5GHz.
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