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Cell Phone Jammers. 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. 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 come in different sizes with varying working radius. If you want a large working radius then you should go for a big jammer. A good jammer should also be able to interfere with both speaking and listening signals. Operating a jammer is simple as it only requires an electrical power source and then you switch it on. It has a bulb lights when it is in operation. Larger jammers are always connected to an output power source while the smaller ones can use batteries such as phone batteries. 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 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 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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A cell phone jammer works the same way as 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 is the one that block the radio frequency signals between cell phones and the jammers are always small. 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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There are several types of cell phone jammers in the market today which vary regarding quality and size. The common types of cell phone jammer are portable, remote control, adjustable, and school cell phone jammers. The use of cell phone jammers are not restricted to the ones mentioned above since you can also install them in your home if you want privacy.