What causes jittery servos on an FPV wing and how to fix it?

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 power supply issues. First, check your servo wiring and connectors to ensure they are secure and not damaged. Use good quality servo leads and avoid long cable runs that can pick up interference. Next, verify your power source: servos should have a stable 5-6V supply, ideally from a dedicated BEC or battery with sufficient current capacity. If the voltage fluctuates or drops under load, jitter can occur. Adding a small capacitor (e.g., 100µF) across the servo power lines can help smooth voltage spikes. Also, check your receiver and transmitter signal quality; poor signal or interference can cause servo twitching. Try moving antennas or changing frequency channels to reduce interference. Finally, inspect the servo itself for mechanical issues like binding or damage. Replacing the servo or using digital servos with better noise immunity can also reduce jitter. Following these steps usually resolves servo jitter on FPV wings.