srtdodge05

RG6 from the Building with DVR to the Building with Camera's. The power supply is in the same building as the camera's. The camera's are no more then 10ft from the power supply. The Coax is under ground and in water. The building with the DVR supplies all the power to the building that has the cameras on it. I even ran the power supply for the camera's off a UPS battery unit not using the building power. This is the only building I'm having trouble with and it is also the longest runs I have.

I have 3 Analog camera's running on RG6 direct burial cable. The run is around 1,200ft from between buildings. During the day the picture on the camera's aren't bad but it is a little wavy in some areas. At night The picture is real bad or sometimes I get nothing at all. Camera's are on a 12v system. I bought some speco ground loop isolators to see if that fixed my problem. With the filters the camera's wont work in the day time but they will at night. So that has caused another problem. So I'm wondering if there is somehow I can boost the signal over the long run to see if that fixes the problem?