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How a Cell Phone Jammer Works.

A cell phone jammer is always used for blocking mobile signals in a specific area. The jammers were initially left for use by the defense sector for security purposes. Currently, the use of jammers have been employed in many areas such as phone usage restricted work places and religious places. The device will prevent your phone from call of receiving of calls, therefore, guaranteeing zero phone distraction in a meeting. The jammers works in the same principle that is used for blocking of radio waves. The jammers are available in different sizes and operating range. Large devices are always known to have a bigger working range. A good jammer should also be able to interfere with both speaking and listening signals.

A jammer operates using electrical power and has a switch button. To determine if it is functioning, the bulb should be on. Majority of the small jammers relies on electrical energy from a battery while large jammers relies on electricity from plug in power sockets. It usually has an antenna that is useful for sending and receiving signals. The main electrical components of typical a jammer are voltage-controlled oscillator, tuning circuit, noise generator, and an RF amplification which perform specific tasks towards blocking mobile signal.

The function of the voltage-controlled oscillator is to produce the radio signal that will interfere with the mobile signal while the tuning circuit controls the frequency that the jammer broadcasts its signal. The function of the RF amplification is to boost the power of radio frequency to amounts that can interfere with a signal while the noise generator is for generation of random electrical output to interfere with the existing mobile signals.
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The working principle of a cell phone jammer is similar to that of a radio jammer. A cell phone jammer generates radio frequencies which are those of a mobile phone. The radio frequency generated will interfere with the ones connecting one cell phone to another. Cell phone jammers are group into two broad categories depending on the mobile signals targeted. One of the categories is the one containing the small jammers that operate by blocking the radio signals between a cell phone and another cell phone. The other group is meant for large and powerful jammers. The second category usually operate by causing interference on the radio frequency signals between the satellite and the cell phone towers.
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There are several types of cell phone jammers in the market today which vary regarding quality and size. Some of the common cell phone jammers include portable, remote control, adjustable, and school cell phone jammers. There are several other uses of cell phone jammers apart from the ones mentioned above.

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