si_kungs 0 Posted April 23, 2008 how long can we run catv coaxial cable for cctv use without having any picture quality loss? Share this post Link to post Share on other sites
survtech 0 Posted April 23, 2008 It is not recommended to use CATV cable for video at all. If you do, I would say not more than 100 ft.. Share this post Link to post Share on other sites
si_kungs 0 Posted April 25, 2008 thank you sir survtech. what would be the picture degradation be? it will become blur? Share this post Link to post Share on other sites
rory 0 Posted April 25, 2008 50-50 chance of major interference .. on and off or all the time. Share this post Link to post Share on other sites
survtech 0 Posted April 25, 2008 thank you sir survtech. what would be the picture degradation be? it will become blur? The primary problems could be (depending on how far you try to run it): * Weak sync * Loss of contrast * Excessive color (caused by distorted color burst signal) * Ghosting or ringing Share this post Link to post Share on other sites
si_kungs 0 Posted April 25, 2008 thats why i get humbars. is cable also the problem? Share this post Link to post Share on other sites
survtech 0 Posted April 25, 2008 Possibly, but it also could be a ground loop. Share this post Link to post Share on other sites
si_kungs 0 Posted April 25, 2008 sir for ground loop isolator where do i connect it? at the end of the cable entering the dvr? or at camera? Share this post Link to post Share on other sites
survtech 0 Posted April 25, 2008 It probably doesn't matter, though I would try it at the DVR end since that should be the easiest place to get to. If it doesn't at least minimize the bars, you may have another problem (cables?). Share this post Link to post Share on other sites
si_kungs 0 Posted April 25, 2008 ah i see. thanks. sir survtech are your familiar with vicon system? what protocol for speed dome do they support? Share this post Link to post Share on other sites
survtech 0 Posted April 26, 2008 Sorry, no. The only PTZ'z I've worked with are Pelco, A/D and Ganz. Share this post Link to post Share on other sites
si_kungs 0 Posted April 26, 2008 sir i have read on the forum that you are doing casino cctv. for casino what brand do they usually use? and is the recording per second more than 30fps? Share this post Link to post Share on other sites
survtech 0 Posted April 27, 2008 We use Pelco, Ganz, Ikegami and a few other cameras. Our DVR system records approximately 1000 cameras - all at 30fps. Share this post Link to post Share on other sites
si_kungs 0 Posted April 28, 2008 so there are many dvrs stack on racks. do you still use analog sir? or all are ip based? Share this post Link to post Share on other sites
survtech 0 Posted April 28, 2008 so there are many dvrs stack on racks. do you still use analog sir? or all are ip based? 100% analog cameras at this time. Share this post Link to post Share on other sites
si_kungs 0 Posted April 29, 2008 sir are you familiar with vicon system? Share this post Link to post Share on other sites
