"log lora" on one unit, (Receiving Unit)

`settings flags fieldtest` on the other one. (Sending Unit)

`settings flags loratest` -- transmit every 10 seconds (if the unit has a GPS fix)

`settings flags -loratest` -- turn off the above

`settings flags` -- query the above

`settings lora.frequency <kHz>` -- set transmit frequency

`settings lora.frequency` -- read transmit frequency

`settings lora.txpower <dBm>` -- set transmit power (-9 to 22), only the high power PA is selected

`settings lora.txpower` -- read transmit power

`settings lora.bw <kHz>` -- set transmit bandwidth (500,250,125,63,42,etc)

`settings lora.bw` -- read transmit bandwidth

`settings lora.cr <CR>` -- set coding rate denominator (4-8), e.g. '5' sets the coding rate to 4/5

`settings lora.cr` -- read coding rate denominator

`settings lora.sf <SF>` -- set spreading factor (5-12)

`settings lora.sf` -- read spreading factor