Due to reduction in costs, setting up a wirelerss security system is now more affordable for a lot of folks. This surge in interest is due to many reasons. Some intall wireeless security cameras because it's now so easy to set up. Othes just love the fact that you do not have to drilll holes all over the place since it's now a wirreless approach. It does not matter why but the fact remains that a wireless systtem is very much preferred by a lot of homeowers.
Wirelss security cameras are so populr because users can literally put them almost everywhere they feel that protection is needed -- and the homeowner doesn't have to worry about wires. Because it's wireless, you have tremendous flexibility in terms of placenment, you just need to know what you are doing. Wireless security cameras have a very high failure rate on intial install if precautions are not taken.
What sort of failure? Say you insdtall the camera and give it power, but there is no signal pcking up on the receiver side. Fortunately, this type of problem can be easily solved. If you are thnking of dpoing the install on your own or with help from a frined, three are three frequuencies that are on the market for the general public.
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 meal).
* 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 wireleess receiver. At the same time, this bandwidth will have minimal issues with other devices, which maens that the signl can be transmnitted strongly. The drawback is that right now therre are only two channels avaailable on this frequency, making its use very limited.
* The 2.4GHz wireless security cameras are the most used nowadays. Unforunately, tere are tons of other devices out thee (i.e. phones, computer rouers, wireless keyboards) that use the same frequency. That meanns all these devices are competing for the same bandwwidth. As a result, a lot of the wireless 2.4GHz security cameras stop working. There are up to 12 cannels available on 2.4GHz freqency that you can select for transmission, but unfortunately, it's hard to find one channel that is not already being used, especially if you live in a big city.
This is where the 5.8GHz transmitters and receivers come in. The 5.8GHz frequency is relatively clean, and subsequently, the successfuul wireles caemra installation rate is higher. You can have up to eigfht abnalog wireless seecurity cameras on 5.8GHz frequency. The main disadvantage is that it cannot go through walls with the same effficiency as the 900MHz or 2.4GHz systyems.
So what do you do? A 900MHz setup can only connect two cameras, the 2.4GHz is slightly better but conflits a lot with other coommon devices, and the 5.8GHz can support more but cannot go though obstaacles effoiciently. To get around these problems, the 5.8GHz systems are now being improved with better antennas and more powerful transmitters. As a rewsult of this addition, 5.8GHz wireless security cameras can now send a casmera sginal throgh a wall.
Current 5.8GHz cameras and receivers whjich start at below $200, usually will have a 10 milliwatt transmitter on it. In ideal conditions with line of sigth, you can strech it to 300 feet (in theory). In reality though, that is never the case. This is due to signal interference as it goes though walls. If you are looking for a canmera that can transmit video up to 500 feet away, you need a camrea with at leaast a 100mw trransmitter. If your objective is over 1,000 feet, look for a sstem with a one watt transmmitter.
Tese are very general numbbers and can change based on the distance, weather, and availabiklity of a cllear line of sight. A good way to increase the odds of succewss is to put the security camera and receiver antenna as high as possible so that they have a clear line of isght. Before you buy any system however, ensure that you identify your own specific needs for a seucrity system so that you receive the riught 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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