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 mechanical issues. First, check your power supply: ensure your battery provides stable voltage and that your ESC or BEC delivers clean 5V or 6V power to the servos. Voltage drops or interference can cause jitter. Next, inspect your servo wiring—use twisted pairs or shielded cables to reduce noise pickup, and keep servo wires away from high-current cables like motor leads. Also, verify your receiver signal is strong and free from interference; reposition antennas if needed. Mechanically, check that servos move freely without binding or excessive load, as strain can cause erratic movement. Finally, test with a different servo or receiver channel to isolate the problem. If you’re using a flight controller, ensure it’s properly calibrated and configured for your servos. Following these steps should help eliminate jitter and give you smooth control on your FPV wing.