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By Author: Jhonthon Trot
Total Articles: 157
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The advent of modern sciences has made our life very easy in many aspects. Simultaneously, modern science has also introduced us to a number of hazards at its flip side. The time we are living in is very restless and transient. The danger that looms in our everyday life, in terms of our personal security and existence is scary and frightening. Thankfully, the new-age science has gifted us the cut-edge security camera systems that decimate our security hazards to quiet some extent.



Closed circuit television cameras capable of transmitting audio/video streams using a standard frequency is the heart and the soul of this new age Security cameras Systems. Streaming of data, both video and audio are done in either of the two methods. The analog streaming has a range of about 300 ft or 90 m approximately when measured in open space. The obstructions that come in the way, like walls, furniture etc. absorb some of these and as such, the range diminishes a little. Frequencies available on the analog steam are 900 MHz, 2.4 GHz, and 5.8 GHz respectively. The latest security camera systems operate mostly on the ...
... 2.4 GHz frequency. It has a disadvantage. Electronic gadgets like cordless phone and other domestic microwave appliances that work on the same 2.4 GHz frequency, interfere with the security cameras systems. As a remedy to this, the Wi-Fi friendly 900 Mhz can be used which is not susceptible to this kind of anomaly.



The digital streaming transmits analog audio and video signals over frequencies with high bandwidth in form of digital packets. As a result to this, the digital security systems cameras have a wider range of about 450 ft or 135 m as compared to the analog one. It also enables transmission and execution of user made commands and instructions, like switching on and off lights etc. as it works as a dual way system between the user or the receiver and the camera. The audio and video signals that are transmitted are also of better quality in this. The security cameras systems using, the digital mode of transmission allows to connect multiple receivers to one single recording device or the camera. The digital video recording or the DVR gadgets use this technique. Modern sophisticated DVR security camera systems range from 4 to 16 cameras in combination. Each camera is termed a channel and as such, a 4 camera DVR is also called a 4 channel system and so on. Each channel or camera is capable to record an integration of both audio and video streams separately. This ensures a better and wider range of coverage in all possible and practical aspect.



The cameras that form the very nucleus of this entire system, are also available in a wide range of features and appearance. The camera model LIT90E is very common these days. These models can record high quality footage with genuine clarity within a range of 50 meters. A water resistant built-in cable bracket comes along with it as an addition. A manually operated zoom lens is its vital feature. The LICG36 is, another popular brand that works to equal perfection extreme weather conditions of heat or cold.



About Author :
Jhonthon Trot is a pro in reviewing the technical gadgets of new trends. Check out his views on the Security Camera or Security Cameras . Visit : http://www.shoppingcctv.com/

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