DS-12: How to establish the Trainer function over PPM Jack cable.

Since DS-12 doesn't offer the wireless trainer function, you can still use the teacher-student system between two transmitters over the PPM signal wire. You need just a single audio 3.5mm Jack-Jack cable (mono or stereo).

Connect a jack-jack cable between the two transmitters (DS-12 <=> DS-12). Teacher controls the airplane and the student transmits his sticks positions over the cable.
In the Student's transmitter, locate System - Configuration menu and set "PPM Jack Function" to PPM8 Positive. In Advanced Properties - Wireless modes/Trainer, you can switch the transmitter to the Student mode (this step is not necessary if you have a special model memory configured just for this purpose).
In the Teacher's transmitter, locate System - Configuration menu and verify that "PPM Jack Function" is set to PPM Input. In Advanced Properties - Wireless modes/Trainer set the Mode to Teacher (PPM input). In the overview at the bottom of the screen you should see the channel data coming from the student over PPM wire.
Assign the trainer switch and go flying.

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