That&#x27;s true. Most 2.4GHz networks beacon at 1Mbps, which is because they are typically configured for compatibility down to 802.11b and beacons are transmitted at the lowest enabled speed.<p>Here [1] somebody collected measurements of time eaten by beacons at few configurations. Not a complete disaster, but still somewhat significant. For example, at the place where I am now, I&#x27;m receiving 67 beacons per second (all at 1Mbps), which, according to those calculation, wastes 17% of airtime.<p>[1] <a href="http:&#x2F;&#x2F;wifinigel.blogspot.com&#x2F;2013&#x2F;08&#x2F;its-well-known-rule-of-thumb-when.html" rel="nofollow">http:&#x2F;&#x2F;wifinigel.blogspot.com&#x2F;2013&#x2F;08&#x2F;its-well-known-rule-of...</a>