The Dorji DRF4432D20I-043M1 433MHz 20DB Transceiver Module is a cost-effective sub-1 GHz transceiver module designed for operations in the unlicensed ISM and LPRD bands. Employing FSK modulation/demodulation, multi-channel functionality, and high bandwidth efficiency, it facilitates the creation of robust and dependable wireless connections.

Configurable to function across 40 channels with 1MHz channel spacing, it minimizes interference from neighboring channels. Equipped with NetID and NodeID, communication is restricted to modules with matching NetID, while NodeID variation doesn't affect normal operation. Additionally, the module boasts a 256-byte buffer, enabling efficient data transfer and supporting various data rates and parity checks through its standard UART/TTL interface. Operating at 3.4~5.5V with a low standby current, it's well-suited for battery-powered applications.