1. Is your RX battery powerful enough ? May be your servo end-point setting is too large --> servo is stalled and cause battery overloaded, and hence battery voltage unstable...
2. I don't know about your TX, but may be your TX can select frame rate (high speed or slow speed), AND assume your servo is Analog servo
ie. If Analog Servo with high speed frame rate, servo will be vibrated.
2. I don't know about your TX, but may be your TX can select frame rate (high speed or slow speed), AND assume your servo is Analog servo
ie. If Analog Servo with high speed frame rate, servo will be vibrated.