RC6GS Transmitter Specifications R7FG Receiver Specifications RC6GS transmitter x 1. R7FG Receiver x 1. RC6GS V3 can work with R8FG/R8FGH/R7FG/R6FG/R6F/R4FGM/R8EF receivers. Channels: 6. It is friendly for 4WD cars, tanks, dual ESC vehicles, and more.