... affect by 2.4GHz R/C RadiosAV Receiver with Diversity inputsSmall, light weight,four channel,anodized aluminum case Specifications of ... 4Ch RF are working. LED5, LED6, LED7, LED8 are all on and AV1, AV2, AV3, AV4 are then ready ... work.LED8 is on when no signal.--Select the channel: RX1 for RF1 and RX2 for F2, RX3 ... button--Set RX1,RX2,RX3,RX4 to the same channel--LED5 for RF1 and LED6 for RF2,LED7 for ...