# Diagnosing and Fixing FPV Video Noise: A Comprehensive Guide to Clean VTX Signals
Video noise is one of the most frustrating issues in FPV flying. It can manifest as horizontal lines, rolling static, or complete signal drops during throttle punches. This guide breaks down the common causes of video interference and provides actionable solutions to achieve a crystal-clear feed.
## Common Symptoms and Causes
| Symptom | Probable Cause | Action to Take |
|———|—————-|—————-|
| Horizontal lines on throttle punches | ESC/Motor electrical noise | Install a Low ESR Capacitor |
| Black or grey screen with OSD | Camera connection or camera failure | Check wiring between camera and FC |
| Random static or loss of range | Antenna damage or incorrect polarity | Inspect antenna and ensure matching RHCP/LHCP |
| Rolling bars | Ground loop | Re-wire components to a common ground |
## The Number One Fix: Low ESR Capacitors
Electrical noise from the ESCs and motors is the most common culprit for FPV video noise. Installing a high-quality Low ESR capacitor on your battery lead or ESC pads acts as a filter, smoothing out voltage spikes.
If you are building a new quad or upgrading your current one, we highly recommend integrating the [UAVModel 35V 1000uF Low ESR Capacitor](https://www.uavmodel.com). It provides exceptional filtering for 4S and 6S setups, ensuring your VTX receives clean power.
## Proper Wiring: Avoiding Ground Loops
A ground loop occurs when there are multiple paths to ground, picking up interference along the way.
– Always power your VTX and Camera from the Flight Controller’s filtered 5V/9V pads if possible.
– Ensure the VTX and Camera share the same ground pad to minimize voltage potential differences.
## Video Tutorial
## Upgrading Your Hardware
Sometimes the noise is due to degraded hardware. Ensure your VTX antenna is not damaged, and consider upgrading to a reliable VTX. Check out the latest [FPV Video Transmitters at uavmodel.com](https://www.uavmodel.com) for reliable, long-range options.