Functions of a Cell Phone Jammer
A cell phone jammer blocks mobile signal within a specified radius. 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. 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 jammer is considered to be of a good quality if it can block both speaking and listening signals.
A cell phone jammer for signal jamming 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. The antenna is used for sending and receiving signal, larger jammers usually have an external jammer. A standard cell phone jammer is always made up of a voltage-controlled oscillator, tuning circuit, noise generator, and an RF amplification which are required to perform specific tasks.
The portable cellular phone 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. Noise generator produces random electric output while in a specified range to block mobile signal while the RF amplification enhances the power of radio frequency to levels that can jam a signal.
The working principle of a cell phone jammer is similar to that of a radio jammer. It operates by producing radio frequencies similar to the ones that a mobile phone operates on. The frequencies are meant to cause interference with the existing mobile frequencies. 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 other group is meant for large and powerful jammers. The large jammers usually target the radio frequency signals between the mobile phone tower and the satellite. To gain more knowledge on where to find the right signal jammers, go to http://www.thefreedictionary.com/jammer.
The jammers are always available in different sizes and quality. Portable, remote control, adjustable, and school cell phone jammers are some of the types of jammers available. 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.