had to put 4 cameras about 140 metres from the dvr unit ran rg6
coax the picture on full screen is o pixelating but on 4 way split its fine is this a power supply to the camera problem or a cable or connection problem

if its using a DVR, make sure Direct Draw Overlay is enabled.

hi what is this function direct draw

What type of DVR or system are you using to view the cameras from?

chinese dvr antone 9 channel d8000 series