Why Buy an AHD Camera System?
Many of these backup cameras come standard with 2MP video resolution. This is an ideal resolution for reversing cameras as it can capture very detailed images without requiring high frame rates.
AHD cameras can transmit HD video over the same coaxial cable used by traditional CCTV surveillance systems. This allows installers to utilize existing cable infrastructure and reduce costs significantly.
Enhanced Image Quality
Unlike cheap and poorly made rebranded cameras sold by many of the larger online retailers that simply put their own logo on a Chinese product, our AHD camera systems utilize high definition video that will immediately intimidate intruders and provide you with the clear image quality your family deserves. Whether used for home security, commercial surveillance or reversing in your car, the advanced technology of these AHD camera systems will give you confidence that you can always see what’s going on around you, regardless of lighting conditions.
Developed by chip-set manufacturer Nextchip, AHD is an analog HD solution that provides backward compatibility with traditional analog CCTV equipment, and allows for high-definition transmission over existing coaxial cables. This means that the AHD system can be connected to a digital video recorder, or DVR, which will digitize and convert the analog signals into an uncompressed HD signal for storage on a hard drive.
The AHD camera will capture a wide-angle of the surrounding area and then transmit that video in an uncompressed format over the existing coaxial cable to the DVR, all with no loss of quality or signal latency. Additionally, these AHD cameras will work with most standard 960H DVRs. These benefits make AHD an ideal alternative to IP CCTV because it is more cost-effective and easy to implement.
Wide Dynamic Range
When you’re looking to upgrade an analog surveillance system to high definition, it can be hard to know which technology to choose. CVI, TVI, AHD and more all offer HD-over-coaxial solutions – but one that’s perfect for you depends on a few things.
Firstly, consider your budget and the distance you need to cover. Depending on these factors, you may find that choosing a smaller camera with a fixed lens is the best choice. This means you can ahd camera system get more details in a small area. On the other hand, if you need to cover a large area then an AHD with an adjustable lens is better as you can zoom in on specific areas of interest.
Wide dynamic range is also a crucial feature to look for, especially when capturing images in harsh environments where there are extreme differences between light levels. Unlike standard cameras, WDR will not clip shadows or highlights, giving you a much clearer image.
However, some cameras claiming to have a wide dynamic range are misleading. They have high dB values, but this doesn’t always translate to a higher-quality image. AHD cameras that prioritize forensic usability and wholesale smart camera clarity over dB value are more likely to deliver a quality image for your business.
Infrared Night Vision
The human eye only perceives wavelengths that fall within the visible light range of the electromagnetic spectrum, which is why we have trouble seeing things in pitch-black conditions. However, a camera can detect and interpret infrared light beams that are invisible to our eyes by utilizing specialized infrared sensors. These cameras can illuminate an area that would otherwise be completely black with their IR LEDs and can work up to 60 meters in darkness depending on the model.
An AHD camera’s IR LEDs can also be adjusted with features such as dynamic smart IR, which automatically adjusts the LED power to match subject distance to avoid over-exposing closed targets or even shooting them in complete darkness. Other options that allow for a camera to operate in total darkness include removing the IR cut filter, which changes the image to black and white, or choosing a 2.8-12mm varifocal lens to dial-in a specific view of the area.
AHD camera technology is one of the most advanced on the market for HD-over-coaxial cable, as it allows for a much higher resolution video signal to be transmitted over long distances than analog CCTV, HD-SDI or Network IP cameras without loss in quality. In addition, AHD cameras can transmit audio and control (OSD or PTZ) in the same uncompressed format, reducing system complexity.
Remote Access
AHD cameras connect to DVRs (Digital Video Recorders) which convert analog signal to digital data for recording & storage. The DVR also has a processor which can perform many other functions including remote access.
A DVR can be accessed remotely over the Internet or through your home network using special software and a computer or smartphone. You can view live footage and remotely control your camera through this program from anywhere in the world where you have an Internet connection.
Some of our AHD cameras come with built-in microphones and support Audio-Over-Coax (AOC). AOC allows audio to be transferred along with the video signal over the coax cable avoiding having to run an extra wire pair for audio.
In order to enable remote access, your system must be connected to the internet via a router or modem and have a public IP address assigned. You will then need to set up port forwarding or a Virtual Private Network (VPN) on your router in order for you to access the camera over the internet.
You should always make sure your camera and DVR are password protected in order to prevent unwanted unauthorized access. This is a good idea for all types of Internet connected devices including smart security cameras, lights, locks, and anything else. You should also check the history of a company you are purchasing from for any prior security breaches.
