How to set the tx power to more than 12 dBm on 433 MHz

[Mihai]

Hi,
You seem to be in the same situation I was regarding transmit power on Tbeam boards. This might help:

Transmit power option

Hi, Is there any option to adjust the transmit power manually for ham licensed operators? I know that the web interface provides this, but I cannot change it to more than 13dBm even if I set the HAM option. I did measure the power output and it was indeed 22mW (~13dBm). The Lora modules (Tbeams) are able to provide 100mW as far as I know. Thanks.

In short, you need to send this to the board (CLI):
meshtastic --set lora.tx_power 20

Regards,
Mihai