WiFi spectrum readings :)

[theMIROn]

Great!
We've already discussed that choosen channel is the primary (control) channel, and upper/lower options means that exactly primary channel will be upper/lower, but not secondary or central.
So, I'm thinking about to change SubChannel name to something like Primary, or exchange lower/upper values. But the second will confuse users, am I wrong?

BTW, can you test official RT-N16 FW 1.0.1.9, there're changes related to wifi power saving.
They could change 20Mhz freq usage map, I hope.