Question,

How does the channel-width 20/40mhz-ht-above and 20/40mhz-ht-below affected when the frequency is set to auto and the band is set to 2ghz-b/g/n?

e.g.
Frequency is set to auto, band is set to 2hgz-b/g/n, channel-width is set to 20/40mhz-ht-above, and country is set to united states. Will it select a channel 2447 or above and keep the 40mhz even if the 2nd 20mhz band would be outside of available channels or does it disable the 20/40 and keep just 20mhz or just not work at all?

Thanks!

Does anybody have an idea what will happen?

Thanks!