Why Wifi Country = KR has wrong channel selection?
Posted: Mon Jul 13, 2020 11:03 am
There's a big problem on Raspberry Pi users on South Korea.
Broken wifi channel setting applied to Wifi Country = KR while using internal wifi chipset.
According to iw reg get
and http://www.law.go.kr/%ED%96%89%EC%A0%95 ... ,20191223)
We can use wifi channel 1-13(2412Mhz ~ 2482Mhz)on 2.4Ghz band and 32-165(5170Mhz-5340Mhz, 5490Mhz-5835Mhz) on 5Ghz band.
But when i set the country to KR,
Lots of channel is disabled.
So, I have a question: Why is lots of Wifi channel is disabled on South Korea country setting?
(sorry for bad english btw...)
Broken wifi channel setting applied to Wifi Country = KR while using internal wifi chipset.
According to iw reg get
Code: Select all
pi@LimePi:~ $ iw reg get
global
country KR: DFS-JP
(2402 - 2482 @ 40), (N/A, 13), (N/A)
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW
(5490 - 5710 @ 160), (N/A, 30), (0 ms), DFS
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(57000 - 66000 @ 2160), (N/A, 43), (N/A)
We can use wifi channel 1-13(2412Mhz ~ 2482Mhz)on 2.4Ghz band and 32-165(5170Mhz-5340Mhz, 5490Mhz-5835Mhz) on 5Ghz band.
But when i set the country to KR,
Code: Select all
pi@LimePi:~ $ iw phy
...
Frequencies:
* 2412 MHz [1] (disabled)
* 2417 MHz [2] (disabled)
* 2422 MHz [3] (disabled)
* 2427 MHz [4] (disabled)
* 2432 MHz [5] (disabled)
* 2437 MHz [6] (disabled)
* 2442 MHz [7] (disabled)
* 2447 MHz [8] (disabled)
* 2452 MHz [9] (disabled)
* 2457 MHz [10] (disabled)
* 2462 MHz [11] (disabled)
* 2467 MHz [12] (disabled)
* 2472 MHz [13] (disabled)
* 2484 MHz [14] (disabled)
...
Frequencies:
* 5170 MHz [34] (disabled)
* 5180 MHz [36] (disabled)
* 5190 MHz [38] (disabled)
* 5200 MHz [40] (disabled)
* 5210 MHz [42] (disabled)
* 5220 MHz [44] (disabled)
* 5230 MHz [46] (disabled)
* 5240 MHz [48] (disabled)
* 5260 MHz [52] (disabled)
* 5280 MHz [56] (disabled)
* 5300 MHz [60] (disabled)
* 5320 MHz [64] (disabled)
* 5500 MHz [100] (disabled)
* 5520 MHz [104] (disabled)
* 5540 MHz [108] (disabled)
* 5560 MHz [112] (disabled)
* 5580 MHz [116] (disabled)
* 5600 MHz [120] (disabled)
* 5620 MHz [124] (disabled)
* 5640 MHz [128] (disabled)
* 5660 MHz [132] (disabled)
* 5680 MHz [136] (disabled)
* 5700 MHz [140] (disabled)
* 5720 MHz [144] (disabled)
* 5745 MHz [149] (20.0 dBm)
* 5765 MHz [153] (20.0 dBm)
* 5785 MHz [157] (20.0 dBm)
* 5805 MHz [161] (20.0 dBm)
* 5825 MHz [165] (disabled)
...
So, I have a question: Why is lots of Wifi channel is disabled on South Korea country setting?
(sorry for bad english btw...)