Why Are My FPV Wing Servos Jittery?

Question: What causes jittery servos on an FPV wing?

Answer: Jittery servos on an FPV wing are often caused by electrical noise, poor signal quality, or power supply issues. First, check your servo connections for loose or corroded wires and ensure the servo plugs are firmly seated. Next, verify your receiver and transmitter are properly bound and that the signal is strong; weak signals can cause servo twitching. Power supply is crucial—use a stable 5-6V BEC or battery source dedicated to the servos. Avoid powering servos directly from a high-voltage source without regulation. Adding a small capacitor (around 10µF) across the servo power leads can help smooth voltage spikes. Also, route servo wires away from noisy components like ESCs and motors to reduce electromagnetic interference. If using a flight controller, check for correct servo output settings and update firmware if needed. Finally, test servos individually on a servo tester to rule out mechanical defects. Following these steps typically resolves jitter and improves overall control smoothness.