Friday, May 18th, 2012

What’s CCTV monitors

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MONITORS

In its basic principles CCTV monitors are very similar to conventional televisions are made up like this for a cathode ray tube and a video amplifier and its operating address is exactly the same, but of course do not have CCTV monitors all referred to the electronic channel tuning and the RF antenna inputs, however these generally have an input and an output relating to video and other audio, these are used to enter monitor the signal from the camera and to return to get the same signal to, for example, another monitor. The main problem with CRT monitors is the curvature of the screen and depth, this has been resolved in recent years with the liquid crystal display (LCD), although not very popular due to its high price.
Resolution:

This is the fundamental difference between monitors and TV sets, also as in the chambers is measured in horizontal lines. The average resolution is 325 TV lines (whatever its size), whereas in CCTV monitors the lines are much higher and up depending on the size of these.

Size     Resolution
5     450 lines
9     700 lines
12     800 lines
15     1000 lines
20     1000 lines

On the above pattern can be set to install a CCTV camera on a TV 29 “will we see the bigger picture but not exactly better or more clear. These lines are usually measured in the center, in a square inch, because it is the largest concentration of them.
Uses:

According to the video accessory is used in the facility is the type of monitor to be used in a few more pictures we should split the screen, the larger the monitor to be used, for example when using a multiplexer divided into Monitor 16 cameras that use would be for one of 20 “, so pictures would have about 3.5″

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