First of all, what is a sine wave anyway, and why is that particular wave shape important? The exact shape of a sine wave is very important to the field of electronics because it is the only wave shape that has energy at only one
The vast majority of coaxial cables are either 50 Ohm or 75 Ohm Characteristic Impedance. This Characteristic Impedance is determined by the ratio of the diameters of the shield and core wire and the Dielectric Constant of the insulating material between the core wire and
Any new technology requires a little effort on the part of the user to learn the basics of that technology to use it effectively. This article discusses the digital HD SDI CCTV camera output signal at the physical layer.
The US Navy and Vacation Cruise Lines have long supplied entertainment on-board ship for the passengers and crew. The easiest way to distribute this entertainment is on a single coaxial cable or cable system. These cable systems are designed exactly like the ones on land.
The standard for audio was born out of the radio industries need to set a standard, and has always been related to 600 Ohms impedance with the level measured in dBm which refers to Decibel milli-Watts of power delivered to the "load". One milli-Watt =
A new type of CCTV camera has been developed to provide HD “High Definition” cameras that operate on existing 75 Ohm coaxial cable. Unlike a two way IP “Internet Protocol” HD camera that requires a network set-up and two sets of 100 Ohm twisted pair
Not all BNC “Bayonet Neill Concelman” that are manufactured for the CCTV video industry are created equal. To get the most out of your CCTV installation and to produce the best video images possible you should consider the brand and the manufacturer’s construction technique vary
Video Privacy Masks are generally used to block out specific areas of a video image. However there are other industrial uses that expand the role of these products beyond the CCTV marketplace and at the same time create other opportunities for installers to make money.
As the conversion from analog to digital television continues in both the broadcast TV and cable TV industries there are many new problems to solve. This article discusses issues related to public access, the program interface and how to guarantee that audio and video signal
Now there is a new HDTV camera format that is compatible with the existing 75 Ohm coaxial cable used by the analog cameras. So you can replace an analog camera with a new HD CCTV camera without having to change the system wiring.