GB464 GROUND-LOOP BLOCKER AMPLIFIER
●The GB464 Ground-Loop Blocker is an active device used to eliminate Ground Loop Interference and picture quality problems in new and existing CCTV video installations. The unit is installed at the monitor site where the CCTV signals come together, or at any intermediate point where video signals are monitored. The GB464 operates with any standard CCTV, NTSC or PAL video signal.
●This device controls and corrects four channels of CCTV video, each channel is separately adjustable for Video Level and Picture Sharpness. A built-in active ground loop blocker removes the 60 Cycle Bars from the CCTV signal even after they have become part of the video signal. This ground loop isolator will prevent 60 Cycle "Hum Bars" from degrading your CCTV system at time of installation and beyond.
●The Level control can be adjusted to overcome losses due to long cable runs up to 3000 feet, poor cable quality, and improper video terminations. Cable runs can be extended beyond 3000 feet by placing additional GB464's at intermediate locations.
●The Picture Sharpness control can be used to restore Picture quality to its original sharpness due to long cable runs, poor quality coaxial cable, kinked or damaged coaxial cable or twisted pair "Balun" transmission installations. It will also restore the video color-burst on a color camera to improve color camera operation on long cable runs.
●This device will prevent Ghosting in the picture by absorbing and eliminating the reflected video Ghost signal. It will also restore the Characteristic Impedance of the down stream video signal to prevent secondary Ghosting in the picture.
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2016/6/4 |
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GB464.doc |
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99 KB |
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