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 power issues. First, check your servo wiring: ensure all connections are secure and use twisted servo leads to reduce interference. Next, verify your power supply is stable—servos should be powered from a dedicated BEC or battery capable of delivering consistent voltage (typically 5–6V). Avoid powering servos directly from the flight controller if it can’t supply enough current. Also, inspect your receiver antenna placement; poor reception can cause erratic servo signals. If you’re using an older or cheaper receiver, upgrading to a more reliable one may help. Finally, try swapping the servo for a known good unit to rule out mechanical faults. To summarise: 1) secure and tidy wiring, 2) stable power source, 3) good receiver signal, 4) quality servos. These steps usually eliminate jitter and improve flight smoothness.