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  1. Your heaters are coming on and pulling your supply voltage down?
  2. You have ground loops. The key here is bands, lines or bends that move slowly up the screen. The way a ground loop happens is when you ground a camera on a long run. The long coax shield has resistance. Ohms law tells us if we have a resistance and a current we will have a voltage potential. The current comes from the two different AC grounds. The camera side is at a ground and the head end is at a ground. If these two grounds are at slightly different voltages you will have current flow. The best way to eliminate the ground loop is to take the camera off of ground. You can test for this by letting the camera dangle by the coax. Put a piece of insulating material between the camera and the metal that the camera is mounted to. The ground loop will disappear. The other way is to use a hand held battery operated monitor on the coax at the head end. Since the monitor is not grounded the lines will go away as well. Touch your BNC to a chassies thereby grounding your monitor and there the lines come back. Get the camera off of ground by insulating the mount and use nylon hardware so the mount or the camera to the mount is broken from the ground. You can also use a ground loop transformer. If the ground loop is severe you may have to use more than one. The are installed at the head end.
  3. kevin.m

    Analytical Video for Security Purposes

    What's analytical video?
  4. kevin.m

    grainy picture with IR Cameras

    Seems to me when you stand in front of the cameras the IR light is nice and strong therefor you have enough illumination to give you a good pix. When you're not in front of it the camera there is not enough IR light to light up the scene. Basically your not giving the scene enough IR Light for a good pix and/or your camera is not sensitive enough.
  5. Only the 4 inside pins are used for panasonic ps data. If the run is short it's not that critical. You can use a phone cable as long as it is straight through. ie. pin1 to 1, pin 2 to 2 and so on. You can also use a phone jack splitter 1 to 2 and as long as it's straight through it will work. Only terminate one of the devices on the line and make sure all the devices have different address settings. If the runs are long the factory reccomends two twisted pairs with an overall shield. If you want to ground the shield only ground one end. Pins 2&3 are 1 pair and 4&5 are the other pair. Good Luck!
  6. kevin.m

    Bad pic with new cam.

    Sounds like you may have ground loop issues. The reason it looks ok with your hand held mon. is because it's isolated from power ground. To eliminate this problem go to the camera and isolate it from any metal. I would bet your mounts are attached to metal that is grounded or you have intentionally grounded your cameras. You can easily test this by temporaraly taking your camera off the mount and placing it on a piece of cardboard to keep it from touching the mount. It dosen't take much AC on the video ground to distort the picture. If you ever see the distortion move slowly up the screen you can be sure you are seeing 60hertz hum. The reason it slowly moves up the screen is because the scan rate of a color camera is 59.94 hz, the ac power is 60 hz so they are almost in sync but not quite, hence the slowly moving bars. Of course if your camera is line locked the distortion will be stationary since the scan rate of the camera is now locked to the 60hz line frequency. Good luck!