Hi Flightwatch,

I hope this information is what you are looking for:

The first pin from the left (when looking at the back of the transmitter) is actually the signal pin and not the common pin. The common pin is the second pin from the right when looking at the back of the transmitter. This pulse is best viewed when the transmitter is ion PPM mode. The frame rate of this negitive pulse train is 22ms.


I hope you find this information helpful. You can also reach our Futaba support technical team at 217-398-8970, or via fax at 217-398-7721.

Sincerely,
Krysta
Lead Futaba Customer Service and Programming Technician