Prawdopodobnie build000 ma rację. U mnie formalnie radarów meteo nie ma, ale mieszkam między lotniskiem a poligonem (w linii prostej 2 km do lotniska, 5km do poligonu) i efekty są takie:
Frequencies:
* 5180 MHz [36] (14.0 dBm)
* 5200 MHz [40] (15.0 dBm)
* 5220 MHz [44] (15.0 dBm)
* 5240 MHz [48] (15.0 dBm)
* 5260 MHz [52] (20.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5280 MHz [56] (20.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5300 MHz [60] (20.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5320 MHz [64] (20.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5500 MHz [100] (21.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5520 MHz [104] (22.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5540 MHz [108] (22.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5560 MHz [112] (22.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5580 MHz [116] (22.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5600 MHz [120] (22.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5620 MHz [124] (22.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5640 MHz [128] (22.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5660 MHz [132] (22.0 dBm) (radar detection)
DFS state: usable (for 432384 sec)
DFS CAC time: 60000 ms
* 5680 MHz [136] (22.0 dBm) (radar detection)
DFS state: usable (for 432384 sec)
DFS CAC time: 60000 ms
* 5700 MHz [140] (22.0 dBm) (radar detection)
DFS state: usable (for 440903 sec)
DFS CAC time: 60000 ms
* 5745 MHz [149] (disabled)
* 5765 MHz [153] (disabled)
* 5785 MHz [157] (disabled)
* 5805 MHz [161] (disabled)
* 5825 MHz [165] (disabled)
I też bym się nie obraził, gdyby dfs wybierał inny wolny kanał dfs zamiast spadać na niedfsowe częstotliwości 
OpenWrt: WAX206/NWA50AX/EA6350v3 || W szufladzie: WNDR4300/TL-WDR4300/SR3200