Thanks for inputs.
Originally Posted by
Dave H
... perhaps try running a ground to it directly from the BEC, but remove the receiver to servo ground.
In my example the BEC -/+ goes directly to the servo (star method), as it powers it, sorry if it was unclear. With only the signal wire going to the receiver. But this means the return current for the signal has to travel a long and noisy path to get back to the receiver. My research indicates some receivers, especially Spektrum based ones, can't handle this. I believe it also disturbs the ESC by creating a potential difference on its way.
If I choose to Y-split the Gnd from servo to both BEC and receiver, I'll make a ground loop if I'm not mistaken, not favorable as noise will occur around it and voltage references would be all over the place if I'm right.
Am I wrong in concluding that running a bec directly to servo outside receiver in a star style will be inferior either way, opposed to running bec directly to a receiver that can handle the same voltage? I believe you called it daisy style
At least no return currents will end up having to go through the noisy ESC mains that supplies the motor that way.