orkan

Hi guys! I'm new to CCTV, so excuse me for posible stupid questions... =) I'm trying to setup CCTV, and using GV-800 card... But having problems connecting cameras to it. If I connect it with 60ft coax, 59U cable - theq work fine... But if I try to connect them with 110 or 160 ft coax, same 59U - it won't work. I checked the cable, and there are no damage... Another thing - I have 6 pieces going togather all 110 ft, but not sure if that would affect signal... Only one piece is used at one time... (I didn't finish wiring yet ) So... not sure what do I do with it... BTW - I'm using SYNETLINK BL-328D camera, and also tried to hook up 4 other camera, but not sure about brand/model, cause there is no label... Can anybody help? =) Thanx!

I powered camera using their own power supply, with 3 ft cord. So it's not the power issue for sure for sure. I turned on the camera, and was just switching the cables.

Ok, BNCs I've checked few times, they are fine, I even repatched the cables few times. What I'm able to see - is just blank black screen on TV, or Blue screen with "Video Lost" message in GV-800.

We use GV-800 card, and I see no switches, at least on outside... Should I look inside the server? It works with short cable... If the switch was wrong - would it work? Also I tried to connect directly to TV, and same pattern repeats. short one works, long one does not.

OK, all cables pulled out, and just lie on the ground, away from any other wires. Still - camers won't work. Tried 4 different cameras, and 2 different pieces of cable: 110 ft and 150 ft. but still, 60 ft piece works perfectly... I'm totally confused...

I mean 110V is shielded... Will that help? How badly 110V will affect signal? I canot check how close 110V to coax right now. But I will after biz hours... If I take 110V to 1 ft. away from coax, will that be enough? Or how far should I take them away? Thanx for your help!

ok.. there are some power lines, but all of them are shielded... Not sure if it helps... can you guide me to some theoretical article about power lines & their affect on CCTV lines?

it's 6 cables running the same route (they actually zip-tied) for 110 ft, then 3 of them goes 30 ft more... High voltage wiring - most probably 110V few runs along the way... Camera is getting proper power for sure. used all the same, just different cables. The one that is 60ft - is not with other 6, but just lying near the computer... Thanx!