Originally Posted by
expert7700
Your statements only apply to the oldest 2.4ghz radio broadcasts. Southwest has used and still uses both 2.4 and 5ghz, and can employ band steering to 5ghz.
I haven't seen a 2.4ghz only device in a long time (though some are out there).
Look up the # of channels that standard (narrowband) 5ghz supports. Newer access points have multiple radios for non overlapping higher density situations to ease congestion, and the AC protocol can help this much further.
Dunno what they use on what aircraft. 800's or later acquired 700s might be 5ghz. But there are a handful of new aircraft with a new provider.