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How a Cell Phone Jammer Works.

The function of a cell phone jammer is to block mobile signals. The jammers were initially left for use by the defense sector for security purposes. Today, jammers have been installed in many areas where usage of phone is not allowed such as religious places and workplace. 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 come in different sizes with varying working radius. The larger the jammer, the larger the working radius range. A jammer is considered to be of a good quality if it can block both speaking and listening signals.

A cell phone jammer is a simple device that operates electronically using an on/off button. To determine if it is functioning, the bulb should be on. Small jammers operate using batteries while larger jammers are plugged in into a power socket. Large jammers usually has an external 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 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. The radio frequencies produced are always similar to the ones that the mobile phones operate 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 second category is meant for the jammers that are larger and more powerful. 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 uses of cell phone jammers apart from the ones mentioned above.