Causes and Fixes for Jittery Servos on an FPV Wing

Question: What causes jittery servos on an FPV wing?

Answer: Jittery servos on an FPV wing are usually caused by electrical noise, poor signal quality, or mechanical issues. First, check your servo connections and ensure the wires are secure and not damaged. Use quality servo leads and avoid running servo wires alongside power cables to reduce interference. Next, verify your receiver and flight controller are properly grounded and powered with a clean 5V supply; voltage fluctuations often cause jitter. If you’re using an ESC BEC to power servos, try powering them separately to isolate the problem. Mechanical binding or excessive friction in the control surfaces can also cause jitter, so inspect linkages and hinges for smooth movement. Lastly, if your servos are old or low quality, consider upgrading to digital servos with metal gears, as they tend to be more precise and less prone to jitter. Following these steps should help you identify and fix servo jitter on your FPV wing effectively.