Our cctv system has 3 cameras so we added another 1 to make it 4 as fitting for the 4 sectors of the screen. But it is not easy to position the camera because it has to be in a vantage point that is beneficial to purpose.
The purpose of the camera is to catch a probably intruder. That means the camera should cover the exit and entry points of the house. We have positioned the first camera to the porch, the 2nd in the backyard and the 3rd in the garage. The last camera is in the living room. There, all points are covered.
Do you have a cctv?