My routers do DFS really well. So well, that they detect radar once in a while (about once per week) where I am pretty sure there is nothing to detect. I found a map of weather radar stations in my area (100km around me) and their frequencies. I should not be able to detect weather radar. I am not anywhere close to their frequencies.
Anyway, I thought changing to channels which do not require DFS might be helpful. But look at this:
So on 4th at about 20:00 I changed from channel 52 which needs DFS, to channel 44 which does not need DFS. I expected nothing to happen minus no false weather radar detection. But what I found was a severe increase of latency. Changing to channel 60 on 5th at about 10:00 made a huge difference.
While I’m at risk of DFS hitting me again,I’d say it’s worth it.
Channels 44, 52 and 60 showed no activity from neighbors. Only channel 36-40 are used as well as some more channels above 100 (see here for lists of available channels and frequencies).
- Not all channels are equal.
- To find the best channels, run a proper real-world test.
- Be aware of weather radar. Or DFS. Or both.