A wireless camera system is a great tool for anyone worried about the security of his or her home or business. The can be as simple as a single camera aimed at the front gate. It can also combine numerous cameras into a comprehensive surveillance system that monitors what is happening in all parts of a property or building.
While some wireless camera systems are battery operated, and are therefore truly wireless, most require a power cord. Battery and electricity run cameras both have advantages and disadvantages. A system powered entirely by batteries, for example, is much easier to install outdoors, where electrical outlets can be hard to come by. Someone wanting to keep track of the perimeters of their property may find it easier to mount cordless cameras in trees or on gateways. Batteries must be changed or recharged, however, and most people installing a wireless security camera system indoors prefer to plug them in. For those worried about power outages, some plug-in models come with additional battery back up.
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Regardless of whether the camera has a cord or not, wireless camera security systems earn their name from the wireless audio and video signals they send. A wireless system is a type of closed circuit television (CCTV) system that broadcasts its signals to a receiver. Once the signals have reached the receiver, the video and audio can be viewed or it can be recorded and stored for later analysis. Wireless cameras work best when there is a clear line of sight between the camera and the receiver, meaning that outdoor cameras usually have a much longer range than indoor ones.
Wireless security camera systems come in two basic types: analogue and digital. Analogue cameras transmit their signals using radio frequencies and usually have a transmission range of up to 300 feet. Many people prefer analogue cameras because the equipment is cheap and the signals can be picked up by multiple receivers. The main disadvantage to using an analogue camera, however, is that the signals are not secure. They can be picked up by anyone who has the right kind of receiver and may be subject to interference from household items such as microwaves or routers. Additionally, the audio and video quality is not as clear as digital.
Digital cameras, on the other hand, are completely secure, and will neither interfere with nor suffer interference from any other signals. Digital audio and video is of a higher quality and tends to be much clearer than analogue. Digital cameras may also have a longer transmission range, of up to 450 feet, and can communicate both ways between the camera and receiver. This means that the camera itself can be controlled through the receiver. The major downside to a digital system is the cost, which is usually much more expensive than a similar analogue system. Regardless of the type of signals sent or the camera used, however, a wireless camera system offers security and peace of mind, which is truly priceless.