![]() Given that there are 14 channels in 2.4 GHz, 25 in 5GHz, and that you have four channel options (HT20, HT40+, HT40-, 80MHz) you would need to run 156 commands to get that information. If you choose a channel and width combination that is not acceptable you will get an error as follows: netbeez$ iw dev wlan0 set channel 1 80MHz The following two commands will set the channel and also confirm that the channel has been set properly: netbeez$ iw dev wlan0 set channel 149 80MHzĬhannel 149 (5745 MHz), width: 80 MHz, center1: 5715 MHz It can be determined by trying to set each width for each channel to see if the driver allows you to avoid throwing any errors or warning messages. This output is very useful, but it doesn’t specify explicitly what widths are allowed and supported on each channel. * 5720 MHz (20.0 dBm) (no IR, radar detection) * 5700 MHz (20.0 dBm) (no IR, radar detection) ![]() * 5680 MHz (20.0 dBm) (no IR, radar detection) * 5660 MHz (20.0 dBm) (no IR, radar detection) * 5640 MHz (20.0 dBm) (no IR, radar detection) * 5620 MHz (20.0 dBm) (no IR, radar detection) * 5600 MHz (20.0 dBm) (no IR, radar detection) * 5580 MHz (20.0 dBm) (no IR, radar detection) * 5560 MHz (20.0 dBm) (no IR, radar detection) * 5540 MHz (20.0 dBm) (no IR, radar detection) * 5520 MHz (20.0 dBm) (no IR, radar detection) ![]() * 5500 MHz (20.0 dBm) (no IR, radar detection) * 5320 MHz (20.0 dBm) (no IR, radar detection) * 5300 MHz (20.0 dBm) (no IR, radar detection) * 5280 MHz (20.0 dBm) (no IR, radar detection) * 5260 MHz (20.0 dBm) (no IR, radar detection) The first step it to determine what channels your setup supports with the following: netbeez$ iw list
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