GB464-UTP GROUND-LOOP BLOCKER FOR UNSHIELDED TWISTED PAIR
●The GB464-UTP Ground-Loop Blocker for Twisted Pair wire is an active device used in conjunction with any Unshielded Twisted Pair video transmitter or "Balun" to eliminate Ground Loop Interference and picture quality problems in new and existing twisted wire CCTV video installations. The unit is installed at the monitor site where the video twisted pair signals come together, or at any intermediate point where video signals are monitored. The GB464-UTP 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 twisted pair wire CCTV system.
●The Level control can be adjusted to overcome losses due to long wire runs up to 3000 feet, small wire gage or quality, and improper camera source terminations.
●The Picture Sharpness control can be used to restore Picture quality to its original sharpness due to long wire runs, poor quality twisted pair wire or wire used in wet locations in twisted pair "Balun" transmission installations. It will also restore the video color-burst on a color camera to improve color camera operation on long wire 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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GB464UTP.doc |
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87 KB |
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