Connection Diagram Overview AE02GL is an audio ground loop isolator designed to reduce signal interference caused by voltage potential differences at the ground points between two devices. The Easiest Way to Eliminate Ground Loop Noise What Causes a Ground Loop? Ground loops are a major cause of interference in audio and video systems. This is because when enough current is flowing in the connection between the two ground points that have different potentials, a ground loop is created to produce noise and hum sound in your audio system. How to Fix Ground Loop Hum To solve the issue, the ideal solution is to have the same ground reference potential between all connected devices. However, most of the professional installations do not have the condition to do it due to complicated cabling and wiring. Use SC&T's Ground Loop Isolator Other than connecting a common ground, a ground loop isolator is another option. It uses an isolation transformer to cut the current flowing into the circuit and the ground loop will not be created to interfere. SC&T 3.5mm Audio Ground Loop Isolator AE02GL AE02GL is one of our top sellers and has outstanding performance. It has successfully eliminated countless ground loop issues for our partners around the globe. How to Install a Ground Loop Isolator Easily install it between a 3.5mm phone jack and an audio output device like microphones, and speakers to filter out the interference for CCTV/ audiovisual systems. Low Insertion Loss Insertion loss is the amount of energy that a signal loses as it travels along with a cable link. low insertion loss allows the signal to remain its performance with a slight reduction. Time-Saving Installation It's hard to identify the real problem causing the interference in a professional and complicated A/V environment but AE02GL can effectively solve the problem by plug and play.