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 supports 720p and 1080p HD video resolutions. You can find different styles of AHD CCTV cameras here.
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 (another HD over coax security camera standard), is that RG59 coax cable can be run long distances without video loss. So far in our experience, installers can reliably use RG69 coax cable up to a max distance of 800 feet for AHD cameras. AHD cameras can also use UTP cable with video baluns to run cable up to 320 Meters / 960 feet with CAT5 cable.
What is the best IP camera? The real question is what is the best camera for your application. The first thing to do is define your objectives. This assure that you get the right equipment.Once you have defined what you need, you can review the specifications. Here is a review of some popular camera specifications. Sometimes the specifications donâ€™t tell you everything. In some case the marketing department wrote the specs, rather than the engineering department. This means you will not get the performance you expect. To determine if the cameras actually meet the specifications we have to test them. Take a look at our IP camera IP camera test and evaluation.An IP camera is a networked digital video camera that transmits data over a Fast Ethernet link. IP cameras (also called "network cameras") are most often used for IP surveillance, a digitized and networked version of closed-circuit television (CCTV).
A Network Video Recorder, or NVR is an internet protocol (IP) based device that sits on your computer network. Since the NVR sits on your computer network, Network Video Recorders can be accessed and managed remotely via your Local Area Network (LAN) or over the Internet, allowing you greater flexibility. One of the basic functions of a NVR is the simultaneous recording and remote access of live video streams from your IP cameras. One the attractions to Network Video Recorders is their ease of use and installation. Typically, a Network Video Recorder will feature advanced recording and playback capability, an intuitive remote control unit, a user-friendly graphical user interface (GUI), Intelligent Motion Detection, and PTZ camera control. NVRs are designed to handle the vast amounts of simultaneous video streams coming in for recording and rebroadcasting the same feed out live to client machines locally or remotely.
Need to keep an eye on your abode from anywhere? Small, standalone Wi-Fi security cameras (also called IP cameras) are easy to set up, can stream video to your phone, tablet or PC, and will send you notifications if they detect motion or loud noises. Most cameras also provide night vision and automatic motion-activated recording.
The cables used are of hybrid type with combination of communication and electrical wires. The communication cables are used for recording the images by the camera and to communicate with the data centre. The 2 or 3 number of electric wires in this hybrid type cables are used for powering the cameras. The communication cables are typically like RG 6 / RG 59 or any other type as per the customer specification and electric cables are from sizes 0.15 to 2.5 mm2 as per the specifications depending on the load. Finolex has now introduced these wires. Finolex uses the latest technology of gas injected physical foaming for manufacture of co-axial cables which offer low weight and helps loss free signal transmission. The conductor for this cable is of solid bare copper type which offers low conductor resistance and lower attenuation. This results in better picture quality.
CCTV Camera Pros offers the best selection of individual CCTV camera power supplies, also known as power adapters. We carry 24VAC and 12V DC individual adapters, like the ones seen on the page you are on, as well as power supply boxes that can distribute power to surveillance systems with 4, 8, and 16 cameras. Installers should check the manual of the security cameras that will be installed to confirm whether the camera needs 12V DC or 24VAC power. Most CCTV cameras are either 12V DC or dual voltage, which means that they can use either. Please note that connecting a 12v security camera to a 24v power source will almost always burn the camera's circuit board and render the camera useless. If you have any questions about the which power supply is required for any of the cameras that we supply, please contact us.
Cameras with the ability to pan, tilt, and zoom (PTZ) allow you to monitor larger areas that would require multiple fixed cameras. By moving to monitor suspicious actions or high-action areas, PTZ cameras offer the security of video surveillance while minimizing installation.PTZ cameras come with mechanical parts, which allow the camera and the lens to move. Some cameras or software can create preset Guard Tours, which are predetermined positions the camera will move to on a set schedule. Other PTZ cameras or software may allow the camera to automatically move when action is detected, allowing the camera to follow suspicious activity as it moves.