Találtam egy olyan parancsot, hogy: iwconfig
Ezt használva:
iwconfig wl0 txpower 1000mW
iwconfig wl1 txpower 1000mW
most ez látszik:

root@XiaoQiang:~# iwinfo wl1 txpowerlist
0 dBm ( 1 mW)
6 dBm ( 3 mW)
10 dBm ( 10 mW)
14 dBm ( 25 mW)
18 dBm ( 63 mW)
22 dBm ( 158 mW)
26 dBm ( 398 mW)
* 30 dBm (1000 mW)
root@XiaoQiang:~# iwinfo wl0 txpowerlist
0 dBm ( 1 mW)
6 dBm ( 3 mW)
10 dBm ( 10 mW)
14 dBm ( 25 mW)
18 dBm ( 63 mW)
22 dBm ( 158 mW)
26 dBm ( 398 mW)
* 30 dBm (1000 mW)
root@XiaoQiang:~# iwconfig wl1
wl1 IEEE 802.11axg ESSID:"T-WiFi Net"
Mode:Master Frequency:2.412 GHz Access Point: 28:D1:27:4C:85:B8
Bit Rate:573.5 Mb/s Tx-Power=30 dBm
RTS thr:off Fragment thr:off
Encryption key:3E9B-4092-04E4-0F63-9CE2-C9F2-A408-202B-9E2B-7D40-D418-4FEA-A30E-3AC8-FDF6-2457 Security mode:restricted
Power Management:off
Link Quality=0/94 Signal level=-96 dBm Noise level=-96 dBm
Rx invalid nwid:698 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
root@XiaoQiang:~# iwconfig wl0
wl0 IEEE 802.11axa ESSID:"T-WiFi Net_5G"
Mode:Master Frequency:5.2 GHz Access Point: 28:D1:27:4C:85:B9
Bit Rate:2.4019 Gb/s Tx-Power=30 dBm
RTS thr:off Fragment thr:off
Encryption key:0855-DABE-D2F9-C1B4-F75B-D697-1F60-6C94-9013-4358-DF1B-C05B-FFDC-05C8-5DFF-0B5E Security mode:restricted
Power Management:off
Link Quality=0/94 Signal level=-95 dBm Noise level=-95 dBm
Rx invalid nwid:3 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

kiadtam még egy
nvram commit
parancsot is, de reboot után elfelejti.