사용자:Cerulean/메모장/hostapd
< 사용자:Cerulean | 메모장
장치에서 지원하는 주파수 확인
iw phy1 info
# (disabled) => 사용 불가능
# (radar detection) => 근처 레이더 시설에서 5GHz 대의 레이더가 작동하면 잠시 WIFI가 중단되고 재연결이 될 수 있음.
# https://www.cisco.com/c/ko_kr/support/docs/wireless-mobility/80211/213882-radar-detection-in-dynamic-frequency-sel.html
..
* 5180.0 MHz [36] (18.0 dBm)
* 5200.0 MHz [40] (18.0 dBm)
* 5220.0 MHz [44] (18.0 dBm)
* 5240.0 MHz [48] (17.0 dBm)
* 5260.0 MHz [52] (18.0 dBm)
* 5280.0 MHz [56] (18.0 dBm) (radar detection)
* 5300.0 MHz [60] (18.0 dBm) (radar detection)
* 5320.0 MHz [64] (18.0 dBm) (radar detection)
* 5500.0 MHz [100] (18.0 dBm) (radar detection)
* 5520.0 MHz [104] (18.0 dBm) (radar detection)
* 5540.0 MHz [108] (18.0 dBm) (radar detection)
* 5560.0 MHz [112] (18.0 dBm) (radar detection)
* 5580.0 MHz [116] (18.0 dBm) (radar detection)
* 5600.0 MHz [120] (18.0 dBm) (radar detection)
* 5620.0 MHz [124] (18.0 dBm) (radar detection)
* 5640.0 MHz [128] (18.0 dBm) (radar detection)
* 5660.0 MHz [132] (18.0 dBm) (radar detection)
* 5680.0 MHz [136] (18.0 dBm) (radar detection)
* 5700.0 MHz [140] (18.0 dBm) (radar detection)
* 5720.0 MHz [144] (18.0 dBm) (radar detection)
* 5745.0 MHz [149] (18.0 dBm)
* 5765.0 MHz [153] (18.0 dBm)
* 5785.0 MHz [157] (18.0 dBm)
* 5805.0 MHz [161] (18.0 dBm)
* 5825.0 MHz [165] (18.0 dBm)
* 5845.0 MHz [169] (disabled)
* 5865.0 MHz [173] (disabled)
* 5885.0 MHz [177] (disabled)iw reg set KR
iw reg get
현지에서 사용 가능한 주파수 대역
global
country KR: DFS-JP
(2400 - 2483 @ 40), (N/A, 23), (N/A)
(5150 - 5230 @ 40), (N/A, 23), (N/A), AUTO-BW
(5230 - 5250 @ 20), (N/A, 17), (N/A), AUTO-BW
(5250 - 5350 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW
(5470 - 5725 @ 160), (N/A, 20), (0 ms), DFS
(5725 - 5850 @ 80), (N/A, 23), (N/A)
(5925 - 7125 @ 160), (N/A, 15), (N/A), NO-OUTDOOR
(57000 - 66000 @ 2160), (N/A, 43), (N/A)
phy#0
country 99: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 40), (N/A, 20), (N/A), PASSIVE-SCAN
(5140 - 5360 @ 80), (N/A, 30), (N/A), PASSIVE-SCAN
(5715 - 5860 @ 80), (N/A, 30), (N/A), PASSIVE-SCAN
iw phy1 info에서 확인한 채널이 위의 범위에 포함되면 사용 가능
- 40MHz일 때
(5150 - 5230 @ 40) -> 5200(5180-5220) O, 5220(5200-5240) X
- 20MHz일 때
(5150 - 5230 @ 40) -> 5200(5190-5210) O, 5220(5210-5230) O