EchoMaster AHD 720p and 1080p CCTV Cameras

When evaluating HD surveillance cameras, it is important to consider several factors. These include camera resolution, image sensor, and power consumption.

The new AHD technology, developed by NextChip, offers long video transmission distances over traditional coax cable, while maintaining compatibility with analog CCTV equipment. It also supports higher resolutions (up to 960H) than other current HD surveillance technologies.

Resolution

AHD is a new high definition analog CCTV technology that transmits 720p and 1080p video resolutions in an uncompressed format over existing coaxial cables. Unlike HD-SDI and Network IP cameras that require a separate cable for audio and control (OSD or PTZ), AHD can transmit all of these functions over a single coaxial cable saving both cost and time.

AHD utilizes a CMOS image sensor that is able to deliver a superior image quality over traditional analog CCTV products. This is a key advantage camera ahd 1080p for any application where it is necessary to have high quality images in poor lighting conditions, such as parking lot applications.

In addition, AHD can transmit a HD video signal over a long distance (up to 500 meters) without degradation. It achieves this by using advanced Y/C signal separation and simulation filtering technology to reduce the color noise in the high frequency area. This makes the image much clearer than standard analog products and comparable to full network HD.

While AHD offers a higher maximum resolution than HD-SDI and HD-TVI (up to 720p), it is still lower than Network IP cameras. However, it is a much more affordable solution than Network IP cameras and provides an easy upgrade path for anyone currently installing analog CCTV. Also, AHD is compatible with most existing CCTV DVRs.

Image Sensor

When choosing an AHD camera, buyers should make sure the camera has a high-quality image sensor. This will ensure the best possible video quality for their specific application. In addition to reducing noise, the image sensor will also help with the focus and contrast of the images produced. EchoMaster’s line of AHD cameras offer a variety of sizes and styles to meet the needs of virtually any application.

AHD technology uses advanced Y/C signal separation and analog filtering to reduce color noise in the high frequency area, so AHD is able to provide more reliable long distance high definition transmission over existing analog transmission lines. AHD supports 720p and 1080p resolutions and can be used with existing CVI, TVI and 960H products.

Some AHD products advertise the 720p image resolution as better than IP cameras, but according to the test results from ASMAG magazine (only in Chinese) and other end-users, 720p AHD has a poorer image quality than Sony Effio 700TVL and 960P products. So, some customers feel cheated after buying and installing AHD products.

AHD is based on the AHD standard which developed by Korean chipset manufacturer – NextChip. AHD can deliver uncompressed 720p / 1080p HD video over the same coax cable used in traditional analog CCTV systems, and it is able to achieve up to 500 meters transmission distance without using any signal repeaters or power amplifiers. This technology breakthrough the current HD video transmission limitation, it can achieve low-cost, long range, no video latency, high efficient megapixel resolution video transmission.

Noise Reduction

Cameras will pick up noise from a variety of sources, and it is necessary to reduce this noise for aesthetic reasons or for practical applications like facial recognition. Fortunately, many digital image processing workstations and editing programs have built-in noise reduction functions that can help you eliminate this unwanted artifact from your images. Using these tools can also make your videos appear sharper and more vivid.

AHD cameras are able to transmit HD video and audio over standard coaxial cable (like CCTV), making them an excellent choice for upgrading your existing analog system without replacing all of your equipment. These cameras can support the transmission of up to 960h resolution over a single cable, which is 450% greater resolution than analog CCTV. They can also transmit audio and control over the same cable allowing you to save time and money on wiring.

Some AHD cameras feature built-in microphones that have Audio-Over-Coax, a technology that allows you to transfer the audio signal over the video cable instead of running separate wires for this function. This can be particularly useful in vehicles where you want to keep your dash clean and tidy and still have the capability of recording audio.

Some AHD cameras are able to record high quality video in low light conditions, especially if they use a CMOS sensor with advanced noise reduction technology. This is great for capturing clear video in poorly lit areas where you might need to focus on details and avoid distracting noise.

Power Consumption

AHD is a new technology that utilizes an analog signal to transmit HD data over traditional 75-3 coaxial cable. It uses advanced Y/C signal separation and simulation filtering technology to significantly reduce color noise in high frequency area, thus offering superior image reducibility. AHD offers long distance high-definition video transmission capabilities and is compatible with existing analog CCTV cameras.

AHD cameras utilize a chip manufacturer such as NextChip or Eyenix to convert analog video signals to digital signals and send Bokysee security camera supplier them over the coaxial cable for recording and transmission. The technology can be used as a cost-effective solution to upgrade an analog CCTV system to HD video surveillance. This method allows users to preserve the original cabling, and eliminates the need for additional twisted pair or CAT5 cable for audio cabling. AHD also supports a range of camera resolutions including 720p, and can transmit over longer distances than other current HD CCTV technologies such as HD-SDI and HD-TVI.

Unlike standard analog cameras, AHD cameras are designed to be connected to a DVR, or Digital Video Recorder, which will digitize the video signals and record them to a hard disk for storage. The DVR can then perform all the digital functions that are otherwise unavailable in conventional analog systems, such as remote control over the internet and intrusion detection with motion alarm. Some AHD DVRs also support Audio-Over-Coax, which enables audio to be transmitted over the same video cable as the video signal, avoiding the need for extra audio cabling.