iwconfig

iw dev

phy#0
Interface wlp3s0
ifindex 3
wdev 0x1
addr a4:4e:31:88:d8:70
ssid fiota
type managed
channel 6 (2437 MHz), width: 20 MHz, center1: 2437 MHz
txpower 15.00 dBm

iw dev wlp3s0 link

SSID: fiota
freq: 2437
RX: 98769808 bytes (352204 packets)
TX: 124024132 bytes (394757 packets)
signal: -59 dBm
rx bitrate: 115.6 MBit/s MCS 13 short GI
tx bitrate: 130.0 MBit/s MCS 14 short GI

ifdown wlan1
iw reg set BO
iwconfig set txpower 30
ifup wlano