The video ground loop isolator gb100 is passive device which reduces ground loop interference with cctv signals and can easily install in a new or added to existing systems. It is useful where a video signal is transmitted via cable between points with different ground potentials. Differences in ground potentials are typically caused by unbalanced power line loads. Features: Bnc male to bnc female with mini cable 25cm on both sides 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 Built in video filter, perfect to work with dvr to immunity dvr interference, for extra interference rejection Others same as ground loop isolator function Technical specifications: Insertion loss 0.5db Frequency response 20hz- 10mhz, +0/-3db Input resistance 75 ohm Output resistance 75 ohm Isolation voltage 600vdc (min) Insulation resistance 100m ohm Transient voltage suppressor 12 vrms C (mm) 55*28*20 with 25cm*2 cable Material Abs black Installation view The video ground loop isolator should be installed where runs of video cable are known to have ground loops. It must be installed in the video cable that has come directly from the camera, but before the cable has been connected to anything else. If several video cameras come from the same area, fix a video ground loop isolator in every cable, or a ground loop will still remain. Size:55*28*20 with 25cm*2 cable