antonb

also here are the specs for my cameras: image Sensor: 1/3" SONY Dome Anti-Vandal METAL CCD Camera Resolution: 700 TVL Lens: 3.6mm Angle: 80 Degrees OSD: On screen display available Min Illumination: 0 Lux (IR ON) Ir Distance: upto 15 Metres IR Light: 24pcs/850nm S/N Ratio: =52dB(AGC Off) Video Output: 1.0Vp-p 75O Operation Temperature: -20°C - +50°C White Balance: Auto Power Supply: DC12V±10% 350 mA Housing: IP65 Dimension: Base Dia 95mm x 80mm bought from ebay as part of this package - http://www.ebay.co.uk/itm/271100226051?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

Hi all, First post and its also a question. I am not a CCTV installer but I have installed a system at my home by myself. For the most part the system is running great. I have 4 x Sony CCD 1/3 cameras. 1 x DVR Cabling is over good quality cat 5e with separate baluns for power and video signal. I'm using 1 run of cat5e per camera with 1 pair of copper for video and 3 pairs for power (3 wires to each terminal +ve/-ve) My power supply is 2A. On my DVR I have the ability to adjust the sensitivity of the motion detection from 1 (low) to 4 (high). At setting 2, my cameras pick up car's but not people (they are looking at a fairly wide area). At setting 3, my cameras pick up people very well and so I have left this setting on. My issue comes at night time when the cameras switch to IR, at setting 3 as soon as IR comes on, the DVR is displaying a flag which says that its constantly detecting motion, despite nothing (sizeable) actually being there. This is only happening at night time and obviously is a real PITA, for searching for triggered events. Has anyone came across this before or can offer a solution? Any help is greatly appreciated. regards A

thanks again for your reply, ill check both of those out. here is a sample of a recording using the inbuilt IR. Its pretty poor. http://youtu.be/81Ya2RHh5So

Thanks sincerely for your reply, I think you are correct there are dots as you call them, when I view the picture at night, so if I'm reading you correctly this is likely what is setting off the motion detection. Excuse my ignorance but when you say a better camera, how do I know what is better than what I have, I believed I was buying good cameras, I.e. Sony effio CCD cameras with 700 TVL. Can you point me in the direction of a better camera please? Re better lighting, should I be considering IR lamps? I really don't want to have traditional lighting always on in the evening. Even if I could turn the sensitivity down at night I don't think the system is fit for purpose as at sensitivity 2, people are not picked up, day or night. At sensitivity 3, it's great until night time when the MD is set off constantly. Thanks again for the reply. Regards Anthony.

Just a wee update, I've checked for voltage drop and do t believe that to be the issue, at the DVR end I'm getting 12v and 11.7v at the camera end. I assume this is acceptable? Any ideas? Thanks.