AHD

AHD refers to Analog High Definition, a video transmission standard that offers higher resolution than traditional analog CCTV systems while utilizing existing coaxial cable infrastructure. It bridges the gap between standard definition analog and high definition digital IP systems. AHD allows for the transmission of 720p and 1080p video resolutions over coaxial cables, providing a significant improvement in image clarity and detail compared to older analog formats like CVBS.

The primary advantage of AHD technology is its ability to upgrade existing analog CCTV installations to HD without the need to replace the coaxial cabling. This makes it a cost-effective solution for businesses and individuals looking to improve their surveillance capabilities without a complete overhaul of their infrastructure. AHD cameras are also generally simpler to set up and configure than IP cameras, making them accessible to a wider range of users.

AHD systems typically operate using a proprietary transmission method that separates video and data signals, reducing interference and signal degradation over longer distances. This allows for reliable HD video transmission over distances of several hundred meters. When choosing AHD equipment, it's important to ensure compatibility between the camera and the recording device (DVR), as different manufacturers may have slightly different implementations of the AHD standard.