This training system is universal among the five major R/C radio manufacturers (Futaba, JR, Hitec, Airtronics and KO Propo) which means that transmitters do not have to be the same brand in order to be joined via an umbilical cable.
Competing brands of radio control system brands include Hitec, Spektrum RC (JR), Airtronics (Sanwa), Japan Remote Control (JR) and Graupner.