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For what purpose people start to use cell phone jammers

Perfectjammer 2019-04-22

Reason of use cell phone jammerExactly what the purpose of people began to pursue use cell phone jammer, different people may give you different answers. Have for protection purposes, some for academic purposes, and will use this kind of equipment to improve work efficiency. Although for different purposes, but the demand for this type of equipment is bigger and bigger.

The commercial hand-held cell phone jammers block frequencies between 800MHz to 1900MHz within a 30-foot range and carried can be used discreetly in a pocket or a handbag to block all cell phones in a small area.

Some academic institutions are currently rumored to be seeking the authority to jam cell phone transmissions because of "academic dishonesty". One could easily use one of these cell phone jamming devices in a public space such as an Internet cafe as well.

Apart from acting as an effective tool to curb cheating during examinations, these devices can protect one from various security threats and criminal activity. This device adds an extra layer of security to national and foreign delegates; prove useful to maintain silence in conferences and seminars; restrain prisoners from maintaining contact with outside world; and for many such activities.

A Mobile Jammer Circuit or a Cell Phone Jammer Circuit is an instrument or device that can prevent the reception of signals by Mobile Phones. Basically, a Mobile Jammer Circuit is an RF Transmitter, which broadcasts Radio Signals in the same (or similar) frequency range of the GSM Communication.

A jammer can block all radio communications on any device that operates on radio frequencies within its range (i.e., within a certain radius of the jammer) by emitting radio frequency waves that prevent the targeted device from establishing or maintaining a connection.

For example, jammers can prevent your cell phone from making or receiving calls, text messages, and emails; prevent your Wi-Fi enabled device from connecting to the Internet; prevent your GPS unit from receiving correct positioning signals; and prevent a first responder from locating you in an emergency.

The Israeli Prisons Authority said it installed the jammer to prevent phone calls being made from smuggled mobile devices, saying they posed a security threat. It had no further comment.

Police also frequently jam cell phones when conducting large raids on organized crime rings. Corporations are also using jammers to stop corporate espionage by blocking voice transmissions and photo transmissions from camera phones.

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