What is a
HD CCTV System?
There are several different types of HD CCTV security cameras on the market, and they are all subtly different. It's essential to make sure you choose the right kind.
HD-SDI was the first analogue HD security camera technology widely available and transmitted HD over COAX cable. There were two main problems, the coax cable quality had to be excellent, and the maximum cable distance was relatively short.
HD-CVI technology manufacturer is the Chinese company Dahua. Dahua Technology is partially state-owned by Central Huijin Asset Management and China Securities Finance Co.Ltd.
Another CCTV security camera technology from China. The main benefit is cost. Image quality is not as good as HD-TVI, and it is more limited in terms of compatibility.
HD-TVI is our preferred CCTV security camera technology. The cable can be existing COAX, so it is ideal for system upgrades or CAT5e or CAT6 cable using video baluns. HD-TVI allows for long cable runs up to 500 meters.
The other great thing about HD-TVI is that, unlike HD-CVI, which is only available from one company, HD-TVI developers was the American company Techpoint and is supplied as an open platform and used by many different manufacturers.