With the high success rate of wireless security cameras in preventing crimes, don't be amazed if these current wonders of technology will be here for a long time and in fact continue to more evolve. It is possible, if not likely, that in the time it takes you to learn the way to operate your new wireless safety camera, a superior and more sophisticated model is being made.
Wireless security camera technology typically includes a battery-operated camera. It doesn't store recorded images in its internal memory. What it does, instead, is transmit signals to a receiving device that may be placed as far as up to 500 meters far. Distant monitoring can then be done by hooking up the receiver to a television. This technology can be attached into to various systems, including house alarm systems, making the combined effect tremendously powerful.
As you can think, there're countless potential usages for wireless safety systems.
For instance, an outdoor wireless security camera - more than one, actually - can be hooked into a wireless security system and provide stealthy and real-time information with regards to what exactly is going on around the premises. Definitely, these can be placed at house as well, which makes them the perfect home surveillance systems.
Wireless safety cameras installed in shops, public places, and crime-prone neighborhoods have been very effective in identifying criminals, catching speeding drivers, and considerably reducing the rate of crime in specific areas. This shouldn't come as a surprise considering the capabilities and effectiveness of these instruments.
In the near future it's expected that wireless security cameras, would be able to also identify faces, detect concealed weapons, detect unattended packages (which could be bombs). This would make these instruments, which are already very functional, even more so.
Although there is still much controversy around the ethics of observation systems, the scales are still tipped in favor of putting civilians' safety first. Some states in the United States reached a compromise with critics of wireless safety cameras by decreeing that watch systems installed in public places should be prominently displayed and visible to all passersby.
Wireless Security Camera System, Which Frequency Should I Use?
The use of wireless security cameras has become increasingly popular over recent years. This surge in interest is due to many reasons. Some install wireless security cameras because it’s now so easy to set up. Others just love the fact that you do not have to drill holes all over the place since it’s now a wireless approach. Whatever the reason may be, wireless security cameras are quickly becoming the preferred method of surveillance for many people.
Wireless security cameras are so popular because users can literally put them almost everywhere they feel that protection is needed — and the homeowner doesn’t have to worry about wires. The placement of a wireless security system is very flexible and easy to install, as long as the installer does his or her homework. Remember that wireless systems tend to fail if you do not follow basic precautions during the install.
What sort of failure? Say you install the camera and give it power, but there is no signal picking up on the receiver side. Luckily, this problem can be solved with some due diligence. And when you are thinking about installing wireless security cameras (whether on your own or with some assistance), just remember that there are three frequencies now that you can choose from.
Frequencies that are Available: 900MHz, 2.4GHz and 5.8GHz
The lower the frequency number, the more walls/objects your security system can pass through (except for concrete and metal).
* 900MHz wireless security cameras can be used in installs where the signal has to go through trees or dry wall in order to reach the wireless receiver. This bandwidth doesn’t have that much interference from other devices, and as a result, the signal can be relatively strong. The drawback is that right now there are only two channels available on this frequency, making its use very limited.
* The 2.4GHz wireless security cameras are the most used nowadays. Unfortunately, there are tons of other devices out there (i.e. phones, computer routers, wireless keyboards) that use the same frequency. Basically, if you see something wireless on the market, there is a good chance it is on a 2.4GHz frequency. As a result, a lot of the wireless 2.4GHz security cameras fail. There are up to 12 channels available on 2.4GHz frequency that you can select for transmission, but the reality is that if you live in a city like New York or Los Angeles you won’t find a single channel that is not occupied by a wireless device.
To fix this issue, some manufacturers have started using 5.8GHz transmitters and receivers in their wireless security cameras. The 5.8GHz frequency is relatively clean, and subsequently, the successful wireless camera installation rate is higher. You can have up to eight analog wireless security cameras on 5.8GHz frequency. The main disadvantage is that it cannot go through walls with the same efficiency as the 900MHz or 2.4GHz systems.
So what do you do? A 900MHz setup can only connect two cameras, the 2.4GHz is slightly better but conflicts a lot with other common devices, and the 5.8GHz can support more but cannot go though obstacles efficiently. To resolve this issue, some security camera manufacturers have started placing high power 5.8GHz transmitters and better quality antennas in their wireless cameras. That means these 5.8GHz systems can now go through walls as effectively as the lower bandwidth systems, without the device limitations.
Current 5.8GHz cameras and receivers which start at below $200, usually will have a 10 milliwatt transmitter on it. If you have a clear line of sight, it can be extended to 300 feet but is really hard to do The signal strength is reduced by interference and walls. If you are looking for a camera that can transmit video up to 500 feet away, you need a camera with at least a 100mw transmitter. For a distance greater than that, let’s say 1,000 feet to 2,000 feet, you need a system with an one watt transmitter.
These are very general numbers and can change based on the distance, weather, and availability of a clear line of sight. A good way to increase the odds of success is to put the security camera and receiver antenna as high as possible so that they have a clear line of sight. Before you buy any system however, make certain that you identify your own specific needs for a security system so that you get the appropriate protection for your home or business. And if you still need a little help selecting the right system, just consult a professional!
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