Can I use a Graupner mc-20 transmitter and reciever

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1

I would like to know if I can use my Graupner MC-20 transmitter and my GR-24L reciever with the Pixhawk system.
If so what do I need to do and how do I do it. What additional pieces of the pixhawk system do I need to make it work. i.e the ppm encoder the PX4FMU and the PX4IO.
Any help would be appreciated.

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You can use it as is, just output SUMO (PPM) signal from the rx.
Also, regardin additional stuff, you may consider madhacker.org/mavlink-to-hott-adapter/