Originally Posted by orthobird

i just came back from flying my airplane, and all of the telemetry data, such as temp and voltage is awesome. the optical RPM, i cannot get it to work. i am wondering if the backplate should be painted half white half black? would this make it work better?

this is what i did, i painted back compeletely white, then i sanded it down some to make it less "shiny" or reflective". doing this , i found out today, did not solve the problem.