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. Start by checking your servo connections: ensure all wires are firmly soldered or plugged in with no loose contacts. Next, verify your power supply—using a clean, stable 5V source is key, as voltage fluctuations can cause servo twitching. Adding a dedicated BEC or a capacitor near the servo power line often helps smooth out power delivery. Inspect your receiver antenna placement and wiring to reduce signal interference. If you’re using an analogue receiver, consider switching to a digital one for cleaner signals. Also, mechanically check the servo linkage and control surfaces for binding or excessive friction, which can cause the servo to strain and jitter. Finally, test your transmitter sticks and calibration to ensure the control inputs are steady. By systematically checking power, signal, and mechanics, you can usually eliminate servo jitter on your FPV wing.