blinkers

Thanks again Soundy, I got back to the job yesterday and found the problem. It was an outside camera that was whipped from a surface box. The wire in the whip had been damaged - probably when they pulled it in, just enough to remove the insulation. This was then covered with tape and water had been getting into the whip, through the top of the box. My first tester had passed it and that's when I tried new ends and had it working for fifteen minutes. My second tester did not pass it until I found and repaired the problem. I could squeeze the damaged coax with my pliers and see the water oozing out. Thanks for the help guys!!

Thanks Soundy for your sound advice. You hit the nail on the head with losing brightness and not the signal. I just didn't understand why it would pass a cable inspection and work for fifteen minutes if it was a bad termination. However I'll try new bnc connectors and also a new power source before I go pulling in a new run. Thanks for all your help!

Thanks guys, Tried connecting it three or four times. fifteen just an estimate. Doesn't always show up when you connect it. It did show up twice - right after I tested the cable with for opens or shorts and it passed both times. Camera outside. Heat not an issue. Every other camera that goes bad we just replace it with a new one and it always shows up on the monitor. We just adjust and focus and job done. Tried different ports in DVR that I know work. Same result. Camera a good two - three hundred feet away from security desk. can't really run one through the premises. If I do need to pull a new cable. Which is the most reliable for these kind of distances? Why put old lens on new camera? sorry not familiar with this line of work. Is there a good book to get started with in learning about the whole cctv game. Both residential and commercial applications? Thanks guys

Hi folks, New to forum. Replaced a cctv camera with one that was not working. The new camera ( is a working camera ) still does not work properly. The RG 59 passed on my cheap little paladin tester. No matter what port I try on the DVR- still the same result. The picture shows up great for about fifteen minutes on the monitor and then goes a redish black color and you can't see anything. Seem to be getting the correct voltage 24 VAC that all other cameras are working of. If the BNC connections were bad - how would it pass & would it work for fifteen minutes and then stop? Any help appreciated.... thanks