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 power supply, or signal interference. Start by checking your servo connections—ensure the wires are secure and not damaged. Use a quality, fully charged battery that can deliver stable voltage, as low or fluctuating power often causes servo jitter. Next, verify your receiver and transmitter settings; sometimes incorrect failsafe or endpoint settings can cause twitching. Adding a ferrite ring or noise filter on the servo leads can reduce electrical interference from motors or ESCs. If you’re using a flight controller, check the servo output settings and update firmware if needed. Also, test with a different servo to rule out a faulty unit. Finally, keep servo wires away from power cables to minimise interference. Following these steps should help smooth out servo movement and improve your FPV wing’s control response.