JR Propo RG812BX 8 Channel 2.4GHz DMSS Receiver with XBusJR Propo RG812BX 8 Channel 2. 4GHz DMSS Receiver with XBus Based on the proven RG712BX Receiver, JRs new RG812BX not only features an additional 8th channel, but a unique hybrid port that allows the Aux 3 servo ports to be used either as conventional PWM servo ports, or as a direct XBus serial connection. Featuring path diversity antennas for outstanding signal reception, and increased telemetry signal syncing. With path diversity antennas, a remote