The RFM92LR is a low-power LoRa module based on the LR1121 chip, this module is designed for wide-area loT and satellite communication scenarios, and features targeted optimizations in frequency band support, power consumption control, and communication flexibility.
Key Features
- Supports both SUB-G and 2.4G bands, with dual antenna interfaces
- LoRa and (G)FSK modulation in sub-GHz is compatible with SX126x and SX127x series
- LoRa and (G)FSK modulation in 2.4GHz is compatible with SX128x series
- Supports satellite communications S-band (1.9-2.1GHz)
- Supports LoRaWAN, Sigfox protocols
In terms of power consumption, the RFM92LR can flexibly adjust the transmit power (13dBm, 14dBm, and 22dBm) according to specific needs, with transmit current as low as 28mA @13dBm 2.4G, 30mA @14dBm Sub-1G, and 110mA @22dBm Sub-1G; and receive current as low as 6.8mA (2.4GHz mode) and 8mA (Sub-GHz mode).
In terms of transmission rate, the RFM92LR offers flexible data transmission rate options to meet the needs of different scenarios (maximum rate: 62.5kb/ s@LoRa Sub-1G, 101.5kb/s@LoRa 2.4G, 300kb/s@GFSK).
Regarding receiver sensitivity, when the RFM92LR has a communication bandwidth of 125kHz and a spreading factor of SF12, the measured receiver sensitivity is as low as -138dBm (Sub-GHz band).
The RFM92LR also features a Sub-GHz/2.4GHz dual-antenna interface design, allowing users to flexibly choose between the Sub-GHz or 2.4GHz bands for communication based on their specific application scenarios and needs.
