The Best Cable For CCTV Ever!
CCTV (closed-circuit television) is a TV system in which signals are not only distributed publicly but are monitored, primarily for surveillance and security purposes. This is used for mainly surveillance purposes like crime preventing, safety, monitoring, and crime solving in mind. And for this, CCTV usually requires cables that would enhance the quality of video signals.
Generally, CCTV cable systems have a number of tools and components, which is quite confusing. That’s why it is important to understand the basics such as what CCTV is and why choosing the right cable matters.
The best Coax cable for CCTV cable installations
Coaxial cables are quite relevant in today’s world mainly due to their high property shielding quality. The shielding property helps in averting any interference with the signal. The copper plate in such cables helps in accelerating the transmission of data. It is very easier to install and comes in two sizes for CCTVs:
RG-6: RG-6 cable is made up of copper and aluminum, for higher bandwidth and higher frequency. That’s why it is not ideal for indoor CCTVs. It is also very heavier than its other types, thus perfect for CCTVs which are used by city authorities, administrations, and police authorities.
RG-59: RG-59 coax cable is the industry’s standard and best choice for CCTV systems and HD over coax cable systems; however, not all RG-59 is created equally. Always be sure to select RG-59 cable with a solid copper core / inner conductor and 95% copper braiding.
CATV coax cable for CCTV
Like CCTV, CATV (cable television) is also typically wired using RG-59 or RG-6 coax cable; however, it isn’t the same type of RG-59 or RG-6 that is used for CCTV installations. The only difference between them is that the center conductor of CATV grade cable is made up of steel or copper-plated steel instead of copper. Steel has a higher resistance than pure copper, which leads to video loss at low frequencies. CATV cables are cheaper than because steel costs less than copper. To identify RG-59 or RG-6 for CATV, check the product specifications and be on the lookup for terms such as “aluminum foil inner shield”, “copper clad steel”, or “aluminum braid shield”. These all are characteristics of coax cable that is used for CATV cable and should not be used for CCTV.
Cable for HD CCTV (AHD, TVI, CVI)
Similar to analog CCTV, HD CCTV technologies also operate at low frequency. You have to use RG-59 or RG-6 with a solid copper core and 95% braided shielding for HD security camera installations. These systems which are known as “HD over coax”, use the same cable as traditional analog CCTV; however because of the higher bandwidth requirements of the video, high-quality cable for these systems is even more important.
Cable for 3 megapixels, 5 megapixels, and 4K resolutions
The technology for “HD over coax” security camera systems continues to be upgraded. CCTV cameras in 3 megapixels, 4 megapixels, 5 megapixels, and even 4K HD CCTV is available. If you are wiring your system with high-quality RG-59 coax cable now, it will be ready to improve to any of these camera types in the future.
In conclusion, each cable type for different purposes has its own unique features and uses. Head out to Chajjer cable industries, if you are looking for new CCTV cables or any electrical or electronic cables.