I have a 16 camera system But I am only using 8 cameras. On my screen it showas 8 pictures and 8 blank chanels. How can i delete the blank channel and only see 8 actual cameras.
It depends on the DVR. Some DVRs may not have this feature. But typically it is available. You should be able to change the grid format to only display the 8 cameras. Or available with some DVRs there is a setting to enable or disable certain channels.
It all depends on your DVR. If it can support such kind of functions, then you can find it in the menu. It is a good idea to try to enable or disable certain channels.