BNC Ground Loop Isolator, 75 Ohm, 600V DC Isolation, 68x28x21mm Plastic and Metal Body

Rolling bars or a distorted picture on a camera that otherwise works can come from a ground loop. This BNC ground loop isolator fits between the camera and the recorder and breaks that loop, which filters out the interference and noise.

The listing gives 75 ohm coaxial input and output resistance, ground isolation of more than 90dB at 50Hz and an isolation voltage of DC 600V (minimum). The body is plastic and metal, black, and measures 68 x 28 x 21mm.

If you are adding cameras to a kit and one channel shows interference that the others do not, this is a cheap part to try before you change any cable. It connects with BNC connectors, so it suits coax runs.