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Mobile interference devices were originally developed for law enforcement and the military to disrupt communication between criminals and terrorists.The bombings that took place in Bali in October 2002, the bombings that took place in Jakarta in August 2003, and the commuter train bombings that took place in Spain in March 2004 all relied on mobile phones to detonate bombs. In December 2003, one mobile phone jammer thwarted the assassination attempt of Pakistani President Pervez Musharraf. According to reports, during President Bush’s visit to London in November 2004, British police considered using jammers to protect the president’s team in London.

Today, there are three most common places use cell phone blockers: Cinema use cell phone signal blockers to keep the place quiet so people can fully devote themselves to the movie; Workplace use cell jammers to improve the efficiency of employees; Examination rooms use cell phone scrambler to prevents candidates from cheating and guarantees fair and equitable examinations.

1. How cell phone jammers work

mobile phone signal jammer

The main principle of the mobile phone jammer is to emit huge noise in the frequency band used by the mobile phone, which interferes with the reception and transmission of the normal signal of the mobile phone. This small object is not only often used to prevent cheating in exams, but is also used politically and militarily to prevent terrorist attacks.

2. Where we can use the jammer

cell phone blocker

Cell phone signal jammers are mainly used in various test venues, schools, gas stations, churches, courts, libraries, conference centers (rooms), theaters, hospitals, government, finance, prisons, public security, military heavy places and other places where mobile phones are prohibited.

Mobile portable Cell Phone Jammers

Cell Signal Jammer blocker Shopping

Before we choose a mobile phone jammer that we like, we must understand what a cell jammer is. Mobile phones are almost everywhere, not only bring convenience to us, but also bring us a lot of trouble. After all, not all mobile phone users know when it is appropriate to turn off the phone. Imagine that when you dine quietly, there are noisy calls ringing. When you watch a great movie, suddenly the nearby phone rings. At this time, maybe you need a cell phone signal jammer.Jammers can help avoid mobile phone security threats.

Some tracking devices also use mobile phone signals to steal the privacy of others. This is a big risk to people's normal life. If mobile jammers are used, the signal of the mobile phone band can be easily blocked, and the tracking device will soon losing its functionality, you can protect people's privacy by simply using a mobile signal interceptor.

Mobile phone jammer is a device to prevent signal reception or transmission. At present, mobile phone signals in various countries of the world have similar frequencies, mainly including GSM 3G and 4G. The frequency range is mainly as follows: 850-894MHz / 925-960MHz / 1805-1880MHz / 1920-1990MHz / 2110-2170MHz / 2345-2400MHz / 2620-2690MHz / 725-770MHz / 790-825MHz. Usually by creating some kind of interference within the same frequency range that the phone normally USES. Therefore, mobile phone users will lose signal or experience significant loss of signal quality. Cell phone blockers have many benign uses. For example, the military and police often use them to restrict or destroy the safety of hostages. Communications during bomb threats or when military operations continue.

In addition, the security in mobile phones and mobile phones, noise problems such as the growing conditions, use the portable device is necessary, cell phone jammer within its scope of work, all these problems will be eliminated. The importance of information security and privacy people's attention, therefore various types of signal jamming device presents the increasing trend, more and more fields need the signal interference device, the classification of mobile equipment has powerful functions, sales of any country in the world, including the United States, Canada, Australia is a country with the largest use.

When you are in a meeting, a sudden ringing of the phone will cause the meeting to be interrupted; During the class, some students would answer the call or chat online, which will divert the student's attention. Putting a cell phone signal blocker in these places can effectively solve these problems. Because these phones are very annoying and unbearable, many regions have take strong measures.

At the same time, the popularity of unmanned remote control aircraft to people's life, and even the society has brought great, though in many places set up a no-fly zone, but there are still such illegal flight. Drone photography can be a great way to capture the privacy of your life, or it can be a tool for criminals to spy on you. You need to buy one in the drone jammer category to protect your privacy.