As we all know, in many occasions in life, it is very inappropriate to use mobile phones, such as exams and meetings. Mobile phone signal, WiFi signal. The Signal-Jammer.com multi band cell phone jammer is suitable for the following places: It is undeniable that we will encounter all kinds of exams in our life, ranging […]
Category: Mobile Phone Signal Jammer
A mobile phone signal jammer is a device that blocks reception between cell towers and mobile phones. Developed for use by the military and law enforcement, these devices were originally created to combat threats like cell phone-triggered explosives and hostage situations.
Will Multi band Cell Phone Jammer affect the signal of other floors?
For the understanding of Multi band Cell Phone Jammer, most people know that it will be used in schools, prisons, detention centers and other places. However, jammers are also used in some special companies or confidential conference rooms. For example, in an office building, a company’s employees play mobile phones during working hours, which seriously […]
Full-Band 2g, 3g, 4g, 5g, Wifi Bluetooth Signal Jammer
During key confidential units, detention centers, and major meetings, in order to ensure that unit information is leaked and to prevent information transmission using wireless devices. It is necessary to install a full-band GSM/GPS signal jammer and become a key unit. Which frequency bands and devices can the full-band signal jammer block, and what features […]
Drone Jammer UAV Blocker Anti-Drone Detection & Jamming System
When holding major events, such as provincial sports games and visits by foreign leaders, strict security management measures must be set up. First of all, today’s security is not only in the security system of ground equipment, but also in the low-altitude intrusion defense. In particular, the intrusion of some black flying drones has been […]
Why Do Prisons Need To Install Cell Phone Signal Jammers?
In prisons or detention centers, it is common knowledge to install Cell phone signal jammers. If you ask the purpose of installing a cell phone signal jammer in a prison, most people may say: Of course it is used to block the cell phone signal of the prisoners in the prison to prevent them from […]
How Do Cell Phone Signal Jammers Work?
Common cell phone signal jammers are used to shield cell phone signals by emitting interference signals. By transmitting a high-power signal of a certain frequency, the surrounding electromagnetic environment is severely damaged, and the cell phone cannot normally obtain and analyze the signal from the base station, thereby achieving the purpose of shielding the cell […]
What Is A Cell Phone Jammer And Are Mobile Phone Jammers Illegal?
The cell phone jammer is a shielding signal device that can effectively shield all communication signals such as CDMA, GSM, SCDMA, DCS (1800MHz), PCS (1900MHz), PHS, 3G, 4G mobile phone signals, WIFi and 5G mobile phone signals. The cell phone signal jammer can concurrently detect multi frequency bandwidth (GSM, DCS, CDMA, 3G，4G, 5G) transmission signals. […]
What Is A Drone Signal Jammer And How It Works?
In recent years, the use of unmanned aircraft (in this case, civilian multicopters) has increased rapidly, and concerns about their safety have also increased. Many relevant departments, and even private individuals, want to do something to prevent drones from entering this sensitive area. The Drone signal jammer device includes a portable main battery and a […]
Does The Signal Jammer In Exam Halls Really Work?
Examination rooms are relatively formal occasions. For the fairness and justice of the examination, it is very important to prevent candidates from cheating in the examination room. Therefore, mobile phone signal jammers are favored by various school examination rooms. So how to choose one that can achieve shielding effect. Many schools, colleges and universities buy […]
How does the mobile phone signal jammer interfere with the signal?
There are many ways for mobile phones to obtain information, such as the most common Internet, and then SMS calls. Even Bluetooth can transmit information within a certain range, and the radio can also receive information from a certain station within a certain frequency to obtain information. There are many ways, but they are all […]