The channel bandwidth in hertz, such as 125000.
The coding-rate denominator, 5 to 8, for 4/5 to 4/8.
Whether the frame carries a CRC.
Whether the frame carries an explicit header.
The preamble length in symbols; the LoRa default is 8.
The spreading factor, 5 (fastest) to 12 (longest range).
The radio settings of a LoRa link.