CCTV Operator Question: Download CCTV Operator PDF
Do you know what Is A Ground Loop?
Answer:
An AC current that can be produced in a cable. This is usually caused by parts of the system being fed from different electrical sources resulting in different earth potentials at each end. The result is interference on the signal, usually in the form of dark bands across the monitor and on occasion tearing in the top third of the image.
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