• The return value of RSSI (received signal strength indicator) is unsigned 1-byte wide, the unit is dBm, the resolution is 1/2 dBm and the range is from -127.0 dBm to 0.0 dBm. The 1-byte value is determined by the formula V = RSSI * 2 + 254 (e.g. value 0x5E=94 is -80.0 dBm and -60.5 dBm is 0x85=133). Value 0xFF (i.e. out of range value +0.5 dBm) specifies a sensor error.
• FRC 1-byte: FRC return value is the return value +4 (i.e. 0x76=118 is -70.0 dBm). Range is from ‑127.0 dBm to ‑1.5 dBm