Principal of the connection is very simple. Student’s transmitter equipped with JETI Duplex module transmits normally at 2.4 GHz. This signal is received by JETI Rsat (alternatiovely DC/DS transmitters if one of them functions as the instrucor). Its PPM output is connected to the „instructor-student“ connector of instructor’s transmitter. Model is controlled and communicates only with instructor’s transmitter and it does not matter at what frequency it transmits, it can be run at 2,4 GHz as well.