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AHD CCTV is an analog high definition closed-circuit television video surveillance standard that uses coax cable to transmit HD video from security cameras to DVRs. AHD currently supports 720p HD and 1080p HD resolution.
AHD CCTV cameras are connected to DVRs using the same type of coaxial cable as traditional analog CCTV cameras , typically RG59 or RG6 coax cable. One of the advantages of AHD over HD-SDI cameras is that RG59 coax cable can be run long distances without video loss. In our experience, installers can reliably use RG59 coax cable up to a max distance of 800 feet for AHD cameras. Alternatively, AHD cameras can also use UTP cable with video baluns to run cable up to 960 feet with CAT5 cable.