wireless

March 31, 2010

Security Cameras Wireless

Security Cameras Wireless

VideoSecu 2.4 GHz Wireless Security Camera Set Night Vision with Audio Microphone for CCTV DVR Home Surveillance System WAH
List Price: ~~$299.99~~
Sale Price: $75.99
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Lorex LW2110 Wireless Digital Security Camera
List Price: ~~$159.95~~
Sale Price: $96.87
You save: $63.08 (39%)

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Lorex LIVE SD9 Wireless Digital Security System - LW2902
List Price: ~~$499.95~~
Sale Price: $299.99
You save: $199.96 (40%)

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Mini Wireless Color Camera with Microphone
Sale Price: $24.95

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Lorex EDGE+ 4-Channel Video Security DVR with 4 Wireless Security Cameras (Black)
List Price: ~~$1,299.95~~
Sale Price: $649.99
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Lorex LIVE LW2702 Wireless Digital Security System
List Price: ~~$499.95~~
Sale Price: $249.99
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Wireless Security Camera and System Basics

Wireless security cameras are used in closed-circuit television systems (CCTV) for surveillance and monitoring. They transmit a video and audio signal to a remote receiver using radio frequencies. Most of these cameras do require wired power, although some models may use batteries or even solar power.

Analog wireless security cameras

Analog wireless cameras transmit their signal in the lower, radio frequencies of 900MHz, 2.4GHz and 5.8 GHz. Note that most of them operate over the 2.4 GHz band, the same band that a lot of household wireless appliances, such as cordless phones and video game controllers, operate on. Interference may result when using in the home.

The advantages of analog wireless security systems is they are lower cost than their digital brethren, and you can use multiple receivers.

The disadvantages are they may cause interference with other devices in the home. The transmission is not secure. the video signal quality is lower than digital, and any interference makes it worse.

900 MHz systems can be used in installations where the signal must go through drywall or even trees to reach the receiver. There is also not a lot of interference with other devices. Unfortunately there are only two channels available at 900 MHz.

2.4 GHz systems are more common, and there are 12 channels available, however, it is rare that you can find a channel that is not already in use by another wireless device.

5.8 GHz setups have a better chance of success, since there is less interference and there are 8 channels available (so you can have up to 8 cameras). The biggest challenge is the signal cannot go through many walls without lots of degradation.

Transmission Power

Lower cost 5.8 GHz systems most likely have a 10 milliwatt transmitter, which ideally can transmit to 300 feet with line of sight between the transmitter antenna and the receiver antenna. This rarely happens. This is a broad generalization and conditions such as distance, weather and clear line of sight affect this greatly.

When selecting an analog wireless security camera system, make sure you find out the transmission power and determine whether this will be enough to overcome any obstacles in your system.

Digital Wireless Security Cameras

Digital security cameras transmit digital information over high bandwidth radio frequencies.

The major disadvantage is the cost of the system. This maybe offset by the many advantages.

Advantages of a digital system are as follows:
Long range transmission of signal with no degradation - can go 450 feet with line of sight between camera and receiver
Very high quality audio and video signals
Can have two-way communication between camera and operator
High security of the signal.

Wireless IP Security Cameras

Wireless IP cameras are now available that can connect through a local area network over IEEE 802.11b/g WiFi systems. These include 2-way audio feeds, encryption, pan, tilt control and automatic night vision. These types of cameras have replaced the older digital wireless cameras, due to prevalence of Wi-Fi networks.

About the Author

These are some things to consider when laying out your system ccd security cameras and CCTV IP Cameras. You can find out more at this websites.

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Security Cameras Wireless Questions

How to Choose the Best Security Camera Wireless

A wireless outdoor security camera is fast and simple to install. Once it's mounted, you are ready to monitor, without any hassle of wiring.

The camera sends video to a receiver within your household or company wirelessly. The receiver connects to your Television, VCR, or digital video recorder (DVR), letting you view or record the video feed. A wireless IP camera (network camera) can also connect directly your laptop or computer network for recording directly to your computer's hard disk.

What to search for in wireless outdoor security cameras

Make certain you plan out the way you will set up your program prior to you obtain. Identify where you'll mount your security camera and where you are going to location the receiver. It is best to experience no problem with signal loss if they are inside 30-40 meters of each and every other, but this does depend on objects such as thick walls and ceilings.

If the distance between receiver and camera is much more than that, you likely will need to extend your transmission range having a wireless card that plugs into a slot within your wireless outdoor security camera. This moves the antenna outside the camera, successfully extending the transmission range. Some wireless cameras come pre-built with effective antennas for longer distances.

Another significant factor to look for is reliability and durability for protection from the weather, from vandals, and from anything else that could damage or disable it. Be sure the housing for your camera is tamper resistant and weather resistant. It requirements to be covered sufficient to shield you camera from the sun and sturdy sufficient to protect your camera from rain, hail, snow, sand, dust or vandals.

Check also that your wireless outdoor security camera is adequately protected against whatever extremes in temperatures are widespread in your region. For those who live in a hot climate, you likely will require a built-in fan. Conversely, in the event you live in a cold climate, you'll likely will need a built-in heater. It is possible to also purchase camera housing separately that can protect your camera for these environments.

Think about the light levels available for your outdoor security camera. A camera's capacity to operate in low light levels is measured by what's known as the lux rating. The lower the lux rating, the much less light the camera requirements to be able to transmit a clear picture.

If the light level is specially low, you might wish to take into account an infrared camera that offers excellent night vision. An infrared security camera is capable of transmitting clear video even in total darkness.

What will wireless outdoor security cameras do for you?

The system you set up will give you peace of mind that you're deterring vandals and criminals. In doing so, you improve the safety and security of your house and family or home business. Whenever you do that, it is possible to also decrease your insurance payments since you might be much less likely to make future claims.

The beauty of an outdoor wireless security camera is that you accomplish all these having a system which is quick to install and manage and will benefit you for years to come.

About the Author

Natalia is a freelance reviewer. Please feel free visits one of her latest projects at
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