ali_shabaan 0 Posted July 23, 2012 Hello All We have an installation with 3 HD-SI camera. We have noticed that some time one of the camera image coming DVR keep appearing and disappearing. Power supply was replaced. Any suggestion? Regards Ali Share this post Link to post Share on other sites
ak357 0 Posted July 23, 2012 Hello AllWe have an installation with 3 HD-SI camera. We have noticed that some time one of the camera image coming DVR keep appearing and disappearing. Power supply was replaced. Any suggestion? Regards Ali What is the distance between Cam and DVR ? just finish job with HD-SDI ma longest run was 150feet so far I and customer love it Share this post Link to post Share on other sites
ali_shabaan 0 Posted July 23, 2012 Hello The distance is about 200 ft using RG-6 cable. We have two other camera 10 ft away, using the same type of coax and the are working fine. Could noise generated from florescent light be reason.? Regards Ali Share this post Link to post Share on other sites
ak357 0 Posted July 23, 2012 Hello The distance is about 200 ft using RG-6 cable. We have two other camera 10 ft away, using the same type of coax and the are working fine. Could noise generated from florescent light be reason.? Regards Ali Hard for me to say only done 2 jobs with HD-SDI so far so good Actually I like it my self a lot for small jobs going to offer only HD-SDI Share this post Link to post Share on other sites
ali_shabaan 0 Posted July 23, 2012 I know its new technology. Which brand and model you have used.? Regards Ali Share this post Link to post Share on other sites
survtech 0 Posted July 23, 2012 Supposedly, HDcctv and HD-SDI should have no issues with 200 feet of RG6. That said, did you use proper RG6? By that, I mean solid copper center conductor and 95% or better braided copper shield? It is my understanding that, like analog, the use of CATV (antenna) cable with copper clad steel center conductor and foil/aluminum shield severely shortens the transport distance. Also, HDcctv/HD-SDI supposedly requires BNC connectors which are specially made for the signals. You could try swapping cameras at some point. If another camera exhibits the same symptoms in that location, the culprit is likely cable or connectors. Share this post Link to post Share on other sites