Regarding footnote [2], this is where 5GHz really helps.  With 80MHz channels, you&#x27;ll be using 1&#x2F;4 the airtime to send the same amount of data.<p>2.4GHz is to be avoided if at all possible.<p>Also, measuring SNR is interesting, but you should really run a speed test of some sort.  A team I work with wrote this to let access points speedtest clients without any code on the client:<p><a href="https:&#x2F;&#x2F;gfiber.googlesource.com&#x2F;vendor&#x2F;google&#x2F;platform&#x2F;+&#x2F;master&#x2F;wifiblaster&#x2F;wifiblaster.py" rel="nofollow">https:&#x2F;&#x2F;gfiber.googlesource.com&#x2F;vendor&#x2F;google&#x2F;platform&#x2F;+&#x2F;mas...</a><p>(Only really tested with ath9k and ath10k.  Could possibly work with other chips.)<p>Of course, there are many variables on translating link quality to actual throughput.  Rate control algorithms are essential, and often wrong.  For example, consider sending at 10x the speed and losing 2x the data.  Most rate control algorithms will avoid that scenario, even though it&#x27;s actually faster and conserves valuable airtime.<p>This is good reading on that subject: <a href="https:&#x2F;&#x2F;wireless.wiki.kernel.org&#x2F;en&#x2F;developers&#x2F;documentation&#x2F;mac80211&#x2F;ratecontrol&#x2F;minstrel" rel="nofollow">https:&#x2F;&#x2F;wireless.wiki.kernel.org&#x2F;en&#x2F;developers&#x2F;documentation...</a>