Wouldn't this work for people with JR radios.
Emcotec DPSI TWIN Mini
Teacher-student mode with manual switch-over between teacher and student using a simple switching channel of the transmitter possible
"Pilot backup" by using two different frequencies (2 transmitters, 2 receivers) possible
Receiver/autopilot switch-over for UAVs
Dual frequency system with 2.4GHz and 72MHz possible
All control functions kept in place when switching from one receiver to the other
Free programmable failsafe positions for the switch-over
http://shop.rc-electronic.com/e-vend...=6&c=705&p=705