https://www.metageek.com/training/resources/understanding-rssi/

https://www.digi.com/resources/documentation/Digidocs/90001456-13/concepts/c_rssi_pin_and_signal_strength.htm#:~:text=The%20RSSI%20is%20measured%20in,is%20better%20than%20%2D60%20dBm.