This article will discuss video ground loop problems in CCTV installations. The cause and how it effects picture quality with solutions to eliminate the problem.
All video cables in CCTV systems cause some loss of brightness and picture detail. The longer a cable is, the greater the loss. Even a few hundred feet of cable will measurably degrade a picture, while a thousand feet or so will seriously reduce picture
When pricing out the cable to use to build a Closed Circuit Television System (CCTV) to connect cameras to a central monitor location, many system operators are seduced by the much cheaper price of CATV cable. After all the specs quoted about the transmission at,
The annoying horizontal bars that occasionally show up in CCTV video monitors are the result of load unbalance in 60 cycle power distribution in the vicinity of a particular CCTV system. As such they may exist in one CCTV installation, but not in another essentially
Long Coaxial and Unshielded Twisted Pair (UTP) cables are a major cause of picture quality loss on Closed Circuit Television (CCTV) systems. No matter how sharp the picture a Camera can produce, or how clear the Monitor, the cables connecting them can appear to "defocus"
FM SYSTEMS, INC. in Santa Ana, CA. introduces a new product called the GB-60 GROUND-LOOP BLOCKER. This product blocks and removes the most common problems in CCTV video installations. The GB-60 also restores the picture quality before it goes to the monitor or recorder.
The new digital revolution has brought us many new and exciting products for the CCTV industry. The DIGITAL VIDEO RECORDER or (DVR) may be one of the most important upgrades that can be made to any CCTV system.
Santa Ana, California. FM SYSTEMS, INC. has invented a new video processing device that automatically corrects video Sync and White level, Color Burst amplitude, low frequency distortion, and also clamps out up to two Volts of 60Hz ground loop interference.
In the past, CCTV cameras could be counted on to have proper 75 Ohm source impedances, but recently there have been a rash of cameras showing up on the market that do not have a 75 Ohm source impedance. In fact they exhibit an almost
