[avian]

Your country very likely has a government entity that regulates radio spectrum use and has means of enforcing it.

Messing with Doppler weather radar is a usually a big thing that impacts various important services. Even in relatively backwater countries you will get someone knocking at your door if you do this.

[machinawhite]

That makes sense, but I thought I'm messing with my router to have faster WiFi and not with some weather radar that I don't even know exists

[mcpherrinm]

The DFS checks exist to prevent your radio from interfering with the weather radar. You’re only allowed to own a radio that could cause such interference because it has those checks.

Here’s an example of what it can look like on the weather radar side: https://www.reddit.com/r/techsupportgore/comments/lnxdji/whe...

[machinawhite]

Is this from a consumer WiFi or from some bigger antenna?

[kube-system]

This is why spectrum in many countries requires users and/or devices to be licensed.