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READ: In this video I demonstrate that it is possible to connect two cameras to the same coaxial cable. This was a bench test, for DIDACTIC PURPOSES, I demonstrate that it is possible to connect two cameras to the same cable. THE CORRECT WAY is 1 coaxial cable per camera, be a professional when doing your installations for customers, DO NOT use this method thinking that it will save cable, use it only in circumstances where it is absolutely impossible to run another cable to install another camera in an existing installation (do tests, if it doesn't work, run a new cable or there is no way...), and preferably, use a video balun instead of BNC connectors.