Range Test question
Hi,
When I do a range test I have someone continuously work the controls with the model about 100 feet away from the Tx. I watch for smooth motion of all the control surfaces. That’s all fine. However, I’ve notice that when the helper is not working the controls at all I can hear the servos “buzzing” a little like they are moving (or want to move). The sound is nearly similar to when a servo is moving but nothing actually moves. It is a pretty constant sound but there is no movment. Also, this sound is different from the “grinding” you would hear when there were some kind of binding. I’m not sure what to make of it. Is this normal or should they be absolutely silent (with an occasional jitter) at 100 feet?
Thanks