connor2425 Posted December 15, 2010 Share Posted December 15, 2010 Hope you can help, Got a camera that has developed some kind of interferance in the last month. It is connected to a adpro fasttrace, this is also causing it not to record on the affected camera, another 5 cams have a little interference and again these wont record? anyone had this prob? The picture is ok but its the usual lines across the screen, I tried a fresh coax but still the same problem, Im trying a new PSU tommorrow. What ive found is the problem cam is 1 and when i plug camera 9 in the picture gets abit better but the lines are still there, when i take it out the pic is alot worse. Anyone any ideas? Thanks Link to comment Share on other sites More sharing options...
james.wilson Posted December 15, 2010 Share Posted December 15, 2010 Ground loop. What is supplying the cameras. Also do you have any other equipment onsite connected to the cameras? securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
connor2425 Posted December 15, 2010 Author Share Posted December 15, 2010 Ive only had a brief look today, im going to investigate more tommorrow. No seems as tho there is just cameras on the adpro. Any chance of this being a PSU problem? Link to comment Share on other sites More sharing options...
james.wilson Posted December 15, 2010 Share Posted December 15, 2010 thereis a chnace yes, but then cant see why plugging a cam in would help it? securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
connor2425 Posted December 15, 2010 Author Share Posted December 15, 2010 also they have put a test monitor local to the camera and its fine, but when i throw a cable across the building the same prob occurs Link to comment Share on other sites More sharing options...
james.wilson Posted December 15, 2010 Share Posted December 15, 2010 id say ground loop then, are they supplied form the same 240v power point? securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
connor2425 Posted December 15, 2010 Author Share Posted December 15, 2010 no there all powered from different points, I think. Link to comment Share on other sites More sharing options...
james.wilson Posted December 15, 2010 Share Posted December 15, 2010 if so then id say you have a ground loop as above. You can test by using an isolator or briefly run suspect cameras from 12v batteries. securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
connor2425 Posted December 16, 2010 Author Share Posted December 16, 2010 Put a new PSU on it locally, was fine so looks like a ground loop problem! Link to comment Share on other sites More sharing options...
james.wilson Posted December 16, 2010 Share Posted December 16, 2010 excellent. thanks for the followup securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
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