Can someone please help me what do these numbers in the parentheses mean?
CH 7 (9) or CH 157 (155). I know that the numbers before the parentheses are WiFi Channel number.
CH 7 (9) or CH 157 (155).
That is the extended channel when connected above 20MHz bandwidth.
CH 7 (9) is not indicating an extension channel of 11.
You're misreading the Wiki.
I'm surprised you keep mixing up the units.
Thanks. For an average user like me, this was the most clearest/simplest explanation i.e. center channel due to extension channel used when you use channel bandwidth of 40MHz or 80 MHz.@K-2SO is correct. It would be simpler to just say that the number the app shows inside the brackets is the centre channel. That's the usual representation for 5GHz but not so usual for 2.4GHz (where 7+11 might be used instead).
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