Hi Michael


Ideally the mechanical setup provides equal travel volume in both directions. This is achieved primarily by adjusting the control link so that the servo arm angle is centered in the travel arc at surface neutral.

Unless you start at a “0” neutral value the values will not be proportionate to achieve equal travel arcs. Even with a “0” reference point you maybe off slightly due to electromechanical tolerances of the servo in play. If your servo arm needs to be programmed for -10 to match the required servo angle for equal travel arcs you have an offset in play. So your numbers will be skewed in the direction and number of the offset.



-10 is the zero reference point

-10 + 130 = -140L

-10 + 120 = 130R



So this is what I don’t understand. If the values are -80 and +130 it will have a linearity or not? You can see in the DOD vids that the values for up and down are different and not the same values but he still explains that it will have perfect linearity which I don’t understand how. Maybe because you program the servo and not through the tx the servo (after you done) works the entire range is same speed ….



In either case you value is 130.

How come? One is 140 and one is 130



I’d recommend programming the dead-band to the lowest value as long as you pay careful attention to linkage binding and current draw at neutral and extreme travel.

What is the lowest?



H9 and others offer inline current and voltage meters that plug into the servo connectors which are invaluable IMO for determining a proper setup.

I think I have it. Is that the “Digital Variable Load Voltmeter”?
Thanks for your help