The default TX-Power of wireless is set to 20dBm but you can increase it to 30dBm but let me warn you, it might be illegal in the country you reside in so do this at your own risk. Some models will not support these settings or wireless chip may stat it “can” transmit with higher power, but the devices manufacturer probably did not place the appropriate heat sink in order to accomplish this so it either won’t work or burn your device out.
Set Transmit Power to 30
iw reg set BO
iwconfig wlan0 txpower 30
Verify Transmit Power at 30
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