RD400D Ebyte Digital radio module 410-470MHz TRIMTALK/TRIMMARK3/TRANSEOT [Communication interface]:UART [Transmission power]:30dBm [Communication distance]: 5.6km [Modulation method]: GMSK/4FSK [Product weight]:4.8±0.1g [Introduction]:RD400D is a table mounted built-in fixed-frequency transceiver-transmitter data transmission module (radio), working...