Why Are My Servos Jittery 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 power supply issues. Start by checking your servo connections to ensure all plugs and wires are secure and free of damage. Use a clean, stable power source—ideally a separate BEC (Battery Eliminator Circuit) or a regulated power supply providing the correct voltage (typically 4.8–6V). Electrical noise from motors or ESCs can interfere with servo signals; try adding ferrite beads or twisting servo wires to reduce interference. Also, verify your receiver’s antenna is firmly attached and positioned away from noisy components. If your flight controller or receiver allows, adjust servo signal frequency or use a filter to smooth out commands. Finally, test with a different servo or receiver to isolate the problem. Following these steps should help eliminate jitter and improve servo performance on your FPV wing.