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More and more people are interested in setting up wireless security for their homes. This surge in interest is due to many reasons. Some people use wireless security cameras for their ease of installation. 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 you do not have to worry about snaking wires inside the walls. Because it's wireless, you have tremendous flexibility in terms of placement, you just need to know what you are doing. Wireless security cameras have a very high failure rate on initial install if precautions are not taken. What sort of failure? Say you install the camera and give it power, but there is no signal picking up on the receiver side. Fortunately, this type of problem can be easily solved. 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. Choosing a Security System: 900MHz, 2.4GHz and 5.8GHz Remember that the lower the frequency, the more walls your system can get through * 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. That means all these devices are competing for the same bandwidth. 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 unfortunately, it's hard to find one channel that is not already being used, especially if you live in a big city. 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. The nice thing about this frequency is you can connect more than eight wireless cameras to it. The main disadvantage is that it cannot go through walls with the same efficiency as the 900MHz or 2.4GHz systems. So right now, we have 900MHz, where you can only have two cameras on it (not very practical), and 2.4GHz, which has almost every device known to man on it, and 5.8GHz, which is relatively clean, but fails when you try to send the signal through walls. To get around these problems, the 5.8GHz systems are now being improved with better antennas and more powerful transmitters. As a result of this addition, 5.8GHz wireless security cameras can now send a camera signal through a wall. If you find a 5.8GHz camera and receiver on the market for under $200, chances are it has a 10 milliwatt transmitter in it, which is the lowest power transmitter on the market. If you have a clear line of sight, it can be extended to 300 feet but is really hard to do This is due to signal interference as it goes though 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. If your objective is over 1,000 feet, look for a system with a one watt transmitter. These are very general numbers and can change based on the distance, weather, and availability of a clear line of sight. One way to increase your odds for success is to put both the receivers and transmitters as high as you can to get that clear line of sight. Before making any purchases however, ensure that you identify your own specific needs for a security system so that you receive the appropriate protection for your home or business. And if you still are not comfortable choosing the right system for your needs, just consult a professional!
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