Monitor the camera in the image back when there is interference?
(1) strong electrical interference. Strong electric cable work when the voltage is large, in the cable around will produce a specific magnetic field, so when the camera cable laying to avoid parallel with the strong cable laying.
(2) camera power supply interference. This situation is relatively rare, the reason for the camera transformer coil and the power supply current resonance, resulting in interference with the camera image. This situation should not be found, even if the camera to increase the signal anti-jamming device, the image signal will interfere. So when the video signal interference, and can not find the source of interference, may wish to monitor the camera to change another transformer!