cctvinstallation

To make sure it is not the DVR can you connect a a known good channel to that connection? That will rule out the DVR and leave something going on with the cabling. Basically change connections on back of DVR. I am am thinking your ground on the connection in question could be bad. Address : 58 King St, Airport West VIC 3042 Ph 1300 668 971 info@edstechnology.com.au Website http://edstechnology.com.au/