HD-AVS is the latest update in surveillance technology. It stands for High Definition Analog Video System. This new technology rivals that of Network IP and HD-SDI systems without costing nearly as much. Older CCTV systems are limited to 960h video resolution which is about 960×480 pixels. HD-AVS systems have a resolution up to 1080p which is 1920×1080 pixels. It is also capable of 720p or 1280×720 pixels. Better resolution makes identification of faces, cars and other details easier. Also unlike CCTV and HD-SDI systems, HD-AVS needs only one cable for video, audio and pan/tilt/zoom. CCTV and HD-SDI systems require multiple cables. HD-AVS is compatible with a variety of cables including Coaxial Cable and Ethernet. Both copper core coax cable and copper clad aluminum coax cables perform well with these systems. CAT5 and CAT6 cables also work well but the resolution becomes slightly degraded. There is no need for compression processing with HD-AVS as it is able to maintain good video quality without it. This uncompressed format is able to be transmitted over longer distances than Network IP systems. While Network IP can only transmit video up to 333 feet, HD-AVS can transmit video up to 1500 feet.
The Auto Signal Compensation feature ensures that there is an extremely low signal distortion over long distances and supports a sampling rate of up to 44.1 kHz. Some prefer Network IP because the Ethernet cable infrastructure can be reused and easily upgraded. Also, Network IP systems are a network device in themselves and do not need a network video recorder. HD-AVS systems do need a video recorder but cost less than Network IP. HD-AVS must be used with an HD-AVS DVR and will not work with a pre-existing DVR. The HD-AVS DVRs cost about the same as a standard CCTV DVR and the system can also be powered the same way as CCTV with either 12V DC or 24V AC power. If you are looking for a camera system with high resolution but don’t want to spend a lot of money then the HD-AVS system is the perfect choice. Existing CCTV systems can be easily upgraded to HD-AVS without having to replace the existing cable infrastructure. With HD-AVS systems you will be getting a resolution that rivals IP and HD-SDI systems, a longer transmission range and fewer cables for about the same cost as a CCTV system.
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