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Functions of a Cell Phone Jammer. A cell phone jammer is always used for blocking mobile signals in a specific area. Some years back the use of cell phone jammers was only left for the security department. Currently, the use of jammers have been employed in many areas such as phone usage restricted work places and religious places. Jammers have also been used curb phone distractions in meeting by disallowing phones calls and messaging. The working principle of jammer is similar to that that is used for disrupting of radio waves. The jammers are differentiated based on size and the working radius. The larger the jammer, the larger the working radius range. A good jammer should also be able to interfere with both speaking and listening signals. A cell phone jammer is a simple device that operates electronically using an on/off button. It has a bulb lights when it is in operation. Majority of the small jammers relies on electrical energy from a battery while large jammers relies on electricity from plug in power sockets. Large jammers usually has an external antenna that is useful for sending and receiving signals. A voltage-controlled oscillator, tuning circuit, noise generator, and an RF amplification which perform specific tasks towards blocking mobile signal are the universal components of a cell phone jammer and they are meant to perform specific functions. The jammer is capable of regulating the frequency at which it broadcasts its signal because of the tuning circuit while the voltage-controlled oscillator is meant for production of enough radio signals to block the mobile signals. The function of the noise generator is to generate random electrical output in a specified range to interfere with the mobile signals while the RF amplification is used to enhance the level of radio frequency so that it can block a mobile signal.
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The techniques that a cell phone jammer uses are similar to those of a radio jammer. It operates by producing radio frequencies similar to the ones that a mobile phone operates on. The function of the radio frequencies generated is to interfere with the existing mobile phone signals. Cell phone jammers are group into two broad categories depending on the mobile signals targeted. The first category comprises of smaller jammers that block the radio frequency signal between an individual cell phone and the cell phone towers. The other group is meant for large and powerful jammers. The jammers operate by blocking the transmission of mobile signal from the satellite to the cell phone tower.
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Several types of cell phone jammers exist that vary depending on quality and size. Some of the common cell phone jammers include portable, remote control, adjustable, and school cell phone jammers. There are several other places that you can install a cell phone jammer for privacy reasons.