Keywords: eBook Reader | Car Adapter | Celebrity Dresses | Android Tablet
Specifications:
Package Included:
Get DinoPoint™ by Writing reviews, Post Images, or Post Videos. The first five customers can get double points!
If you want to view more than one area, you'll need at least one camera per area. In some cases you may require two or more cameras in an area. If good identification is required, a general rule of thumb would be that each camera should cover an area of no more than 30 feet.
Wireless cameras are basically wireless transmitters carrying a camera picture signal. The camera is wireless and the video signal travels between the camera's transmitter to the receiver. This works much like a radio. The sound you hear on a radio is wireless and you tune to a certain frequency and hear the sound. Wireless cameras also have channels. The receiver needs to tune into the same channel as is being used by the transmitter in order to receive the picture.
The process is the following: The Camera sees the image, and sends it to the transmitter. The transmitter then sends the signal through the air to the receiver, which picks up the signal and outputs it (via a cable connection) to a TV/Monitor/Digital Video Recorder. Keep in mind that both the camera and transmitter require power. The power is provided either by battery and/or transformer/adapter.
In some wireless systems, the camera and transmitter is very small and the power is provided to both from one source. A good example of this is a hidden wireless camera in a clock radio. In this case, the wireless camera is powered by plugging in the clock. The camera and wireless transmitter are provided power by the clock radio internally.
A wired camera needs an RCA cable to connect it to a video recording device such as a VCR, DVR or TV. The video signal is passed from the camera, through the cable, to your monitoring device, which allows you to see the picture.
A wireless camera doesn't need an RCA cable to provide the video signal to the VCR, DVR or TV. The video signal is transmitted through the air to the monitoring device directly, or through a receiver. However, wireless cameras still require power. You can apply power by either using batteries, or by plugging the camera into a regular wall outlet.
Wherever possible "wired video" should be the first consideration, as it produces a clearer image and is more reliable, with less chance of interference. These cameras operate on very crowded frequency bands, which can be interfered with by a mobile phone, wireless access-point, wireless network card or many other wireless devices. In addition, wireless cameras aren't as secure as wired cameras. They may permit an intruder to see inside your house or business.
However, wireless cameras would be advantageous in situations where video observation is only needed on a temporary basis or when the prospects of getting a wire between two points is next to impossible. Wireless is also excellent for simple observation applications, when high definition is not critical and when low cost solutions are the objective.
