3/18ch Rx (S-Bus) (HV) 2.4GHz (P-R7003SB)Primarily developed for use in helicopters but equally suitable for fixed wing models, this tiny full range FASSTest receiver weighs in at only 7. 2g! The R7003SB telemetry enabled receiver, a high voltage design that operates up to 3 channels using the 3 standard PWM outputs or up to an incredible 18 channels (16 proportional + 2 digital) using the S Bus port. That means a simpler setup and full support for S Bus and S Bus2 servos. As supplied the