Does this Turnigy 9x ( http://www.hobbyking.com/hobbyking/store/__67087__Turnigy_9X_9Ch_Transmitter_w_Module_8ch_Receiver_Mode_2_v2_Firmware_AR_Warehouse_.html ) works with the Navio+?
Simplest and cheapest way to connect Turnigy 9x to Navio is to use this PPM encoder.
This transmitter module should do. Receiver in this combo does not output PPM, so you would need another one. I’m not sure if the transmitter module can be found without a receiver.
And this transmitter:
More information is available here:
Considering the price for Turnigy 9x, module replacement and PPM receiver maybe it would be reasonable to buy Taranis.
I use a 9xr with opentx & dragon link tx/rx, it works great.