Wireless surveillance cameras are used in closed circuit television (CCTV) for surveillance and control. To upload a video and audio signal to a remote receiver using radio frequencies. Most of these cameras require activation cable, although some models can use batteries or solar power also.
Analog cameras wireless surveillance
Security System
Wireless cameras transmit their analog signals in radio frequencies below 900 MHz, 2.4 GHz and 5.8 GHz. Note that most of them workon the 2.4 GHz band, the same band that handle a lot of home appliances like cordless phones and wireless video game controllers. Disorders may occur when you use at home.
The advantages of analog wireless security systems, are cheaper than their digital brethren, and you can use multiple receivers.
The disadvantages are that they can cause interference with other devices in the home. The transmission is not secure. the quality of the video signal is lower thandigital, and any interference makes it worse.
900 MHz systems can be used in systems where the signal to pass through stone walls and even the trees must be used to reach the recipient. There are also many non-interference with other devices. Unfortunately, there are only two channels are available with 900 Mhz.
2.4-GHz systems are more common, and there are 12 channels available, but it is rare that you have a channel that is not already another wireless device.
5.8 GHz configurationshave a better chance of success, because (as you can up to 8 cameras), less interference and there are 8 channels available. The biggest challenge is the signal does not pass through many walls without much degradation.
Power Transmission
Reduction of the cost most likely a 5.8 GHz 10-milliwatt transmitter capable of transmitting in the ideal case to 300 meters line of sight between the transmitting and receiving antenna. This rarely happens. This is a largeGeneralization and conditions such as distance, time and a clear influence this greatly.
When you choose a similar system ensures that wireless security camera is to determine the transmission power, and if this is sufficient to overcome all obstacles in the system.
Digital wireless surveillance cameras
Digital surveillance cameras, transmitting digital data over a radio frequency to high bandwidth.
The main disadvantage is the cost of the system. Thismay be outweighed by the benefits many.
The advantages of a digital system are the following: The long-range signal without degradation - can go 450 feet with line of sight between the camera and receiver Very high quality audio and video signals Possible two-way communication between the camera and operator High signal security.
Wireless IP surveillance cameras
Wireless IP cameras are now available through a local network using the IEEE 802.11b / g produceWiFi systems. These include two-way audio feed, encryption, rotation, tilt control and automatic night view. These types of cameras have replaced the old wireless digital cameras due to the proliferation of Wi-Fi.
These are some things to consider when the layout of the system.
Wireless Security Camera System and the base
