Have you ever wondered why Auto Iris cameras seem to go out of focus at night. Many installers have had to return to the job site at night and reset the focus of a camera to solve this problem.
Someone once said "Timing is everything". The same thing can be said about Line-Lock CCTV camera installations. The Line-Lock feature is available on most CCTV camera's, and is used to prevent picture rolling on the monitor during switching from one camera to another.
Someone once said "Timing is everything". The same thing can be said about Line-Lock CCTV camera installations. The Line-Lock feature is available on most CCTV camera's, and is used to prevent picture rolling on the monitor during switching from one camera to another.
FM Systems, Inc. has designed and developed equipment for an entirely new way of synchronizing CCTV cameras that is both more accurate and takes much less time and equipment than previous methods. With this equipment, synchronization can be accomplished by one installation technician instead of
FM Systems, Inc. has developed a digital meter that measures the degree of synchronism between CCTV cameras. The new VTM Video Timing Meter measures the degree of synchronism between any two CCTV cameras by displaying the number of horizontal lines that one camera leads or
Why, where, when, and how to terminate video coaxial cables raises the basic question of what is a termination and why is a termination used in the first place.
In the past, CCTV cameras could be counted on to have proper 75 Ohm source impedances, but recently there have been a rash of cameras showing up on the market that do not have a 75 Ohm source impedance. In fact they exhibit an almost
Setting video levels would be easy if only the cable operator could call up a test pattern when he was ready to set levels. In that sense the broadcast engineer has it much easier.
