The TGP-001 Video Ground Loop Isolator can reduce "Ground Loop Interference" with CCTV signals and can easily be installed into a new or added to an existing system. It is useful where a video signal is transmitted via CAT5 cable between points with different ground potentials, differences in ground potentials are typically caused by unbalanced power line loads. Specifications: Insertion Loss: 0.5dB Frequency Response: 0-3dB at 10Mhz Isolation Voltage: 600VDC (Min) Input Resistance: 75 ohm Output Resistance: 75 ohm Insulation Resistance: 100m Ohm Transient Voltage Suppressors: 12 Vrms Dimension: 69x25x22 Material: ABS Black Features: BNC male to 2 pin terminal block. Built in Video BALUN . Passive, no power required. Prevents video-signal distortion caused by video ground loops. Eliminates picture tearing, cross talk and rolling. Prevents power cables laid by others interfering with the CCTV system. Built in TVS (Transient Voltage Suppressors) for surge protection. This device to identical to the GL-001, but for twisted pair cable use. Transmit a full motion monochrome video up to 600M, colour video up to 300M.