With all the changes in cameras.

With all the changes in cameras, multiplexers, digital management regularitys and other equipment in the CCTV industry, the various systems of transmitting the video signal from point A to B can advance unnoticed. It's a subject that's worth a closer apply the mind

So where do we start? We will list the various manners of transmitting the video signal and then take a turn the thoughts at the technology, advantages and disadvantages of each.

Video transmission meanss include (in order of popularity in the US): coaxial cable, fiber optics, two-wire, telephone line (POT ISDN, Internet), microwave, wireless, twisted-pair and infrared. From the large choice of transmission systems available come questions. The first: With thus many choices, which one should I use? The second: Can I use more than single format of transmission within the same system? And also: on what account are there so many different forms of video transmissions? All three questions have