RF Monitor spectrum 5Ghz, missing channels

[AntonioGrillo]

Hi,
in RF spectrum monitor i can't see the channels from 52 to 140, the only visible ranges is Ch.36-48 , Ch.149-165
There is some reason, or exists an option to see those channels?

[kYutobi]

Sometimes DFS channels are excluded or U-NII 2 might not be selected. Check in radio settings. 

[pjc]

I challenged this with support some while ago, apparently the RF Spectrum monitor is out of date, has little if any develpoment or updating done to it and is well overdue a replacement.  As it is, with missing those channels on the 5ghz, it's very limited

[BrechtSchamp]

Wow, I had never noticed that before. For me it also only shows U-NII-1 and U-NII-3 channels. And seeing as in Europe we don't use U-NII-3, that leaves very little relevant information.