I have reported issues with the RF spectrum numerous times, through support cases and even guys that come to our premises to hold a session.
This has been two years already and I have never seen the RF spectrum visual work properly.
![GIdenJoe_0-1582882816194.png GIdenJoe_0-1582882816194.png](https://community.meraki.com/t5/image/serverpage/image-id/11871i9A5E65AA45D4E1F9/image-size/medium?v=v2&px=400)
I now have a clear example with a very busy 2.4 GHz spectrum that while it says channel 1 is very busy, the visual still centers the busy-ness around channel 5 for some reason.
And even worse for the 5 GHz, the graphic has never showed the UNII-2 and UNII-2E bands.
![GIdenJoe_1-1582882938998.png GIdenJoe_1-1582882938998.png](https://community.meraki.com/t5/image/serverpage/image-id/11872i008168F2AF1724D6/image-size/medium?v=v2&px=400)
I once had an answer from a support agent stating that DFS channels are almost never used... We use them all the time!
These screenshots are from an MR46 in trial for a survey at software 26.7 now.