RE: DX8 telemetry RPM pickup for Gas engines - SOLVED!!
So, ... Andy:
1. Is the telemetry system buffered to preclude engine "electrical noise" and stray RF from the CDI system from getting back into the receiver? W/O some sort of buffering, to me it seems that telemetry being directly connected to the engine's CDI circuit and the receiver has the potential to forgo all the other design we put into place to isolate the receiver circuits from the ignition circuit (e.g. Separate batteries for ignition, Fiber-optic Kill Switch, non-conductive throttle linkage, etc.). I am sure you guys must have already thought this issue out.
2. Why doesn't the Tach output circuit from a typical CDI unit (e.g. DLE 111, etc.) work? Seems like that is the ideal spot to pick up a signal. Can an interface be fabbed to convert the CDI's Tach Output signal to a usable Telemetry signal and still buffer the CDI from the Receiver? Or, .. could NOT working only related to a transmitter setup issue?