futaba receiver r7308sb 8ch s bus2 fasstestFutaba R7308SB FASSTest 2. 4GHz Bi directional Receiver The R7308SB receiver features bi directional communication with a FASSTest Futaba transmitter using the S. BUS2 port. Using the S. BUS2 port an impressive array of telemetry sensors cmay be ultized. It also includes standard PWM output ports (1 8ch) and S. BUS output ports. The R7308SB can also be switched to the Dual RX Link system. This system can ensure safety by mounting two FASSTest