What is a cell phone signal blocker? How does it work ? Today we are going to illustrate on these.
If we think of a cell phone as a handheld two-way radio, since radios can be interfered with, so can cell phone signals. In this sense, cell phone signals can be blocked/jammed, just like any radio.
Definition: What does a Cell Phone Jammer mean ?
A cell phone jammer is a piece of equipment capable of blocking reception or transmission of cell phone signals. – This is mostly done by creating some form of interference at the operating frequency ranges of cell phones, which results in no signal or significant loss of signal quality.
Cell phone jammers work on the same principles as that of jammers used in preventing radio communication. They either function by disrupting the cell-phone-to-base-station frequencies or base-station-to-cell-phone frequencies. A mobile phone communicates with its service network through a cellular base station(cell tower). As the cell phone user drives down the street, the signal switches from one cell tower to another.
Specifically speaking, signal jamming devices basically emit the same radio frequency bands as cell phones do. In this way, the cell phones involved cannot tell which is from the regular base station, thus “interference” is achieved. As long as there is a device transmitting the same frequencies as the cell phone, it makes a lot of “noise” when the cell tower is trying to connect to the phone. Consequently you will find that the signal is unrecognized by the phone, and making or receiving a phone call is basically impossible.
In the early days after invention, cell phone jammers were able to block only one set of frequencies, such as 2G(GSM), while nowadays more complex mobile phone jammers have come into being, which could block several types of networks in one go, such as 2G 3G 4G, or even WiFi/GPS signals.
Although cell phone jammers could be used practically anywhere, they are mainly used in areas where silence is expected or required. When a cell phone jammer is active, most cell phones show no network signal, and when the cell phone jammer is switched off, then the cell phone becomes active again. Cell phones use unique frequencies for talking and listening, and most cell phone jammers block either of the two frequencies, indirectly providing the effect of prevention of both.
In modern society, normally mobile phone jammers are used by law enforcement and military to limit and disrupt communications during various situations. Certain organizations use cell phone jammers to prevent corporate espionage by blocking communication within sensitive areas. Portable cell phone jammers are also used by some people to prevent others from using cell phones in their immediate vicinity.
In all, cell phone jammer undoubtedly bring us great help when communications at certain occasions are unwanted. Should you have any doubts in selecting an appropriate cell phone jammer for yourself, please feel free to send us a message.
