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Signal jammer is a device that blocks transmission or reception of signals, usually by creating some form of interference at the same frequency ranges that cell phones use. It is created to help people solve different problems coming from cell phones, radio signals and wireless connections. Every kind of it is designed to work with a specific frequency range. Of course, the design of jammer is more and more inclined to comprehensive performance. That means a jammer can block more and more frequencies
This equipment is manufactured to block signals in environments where cell phone activity may not be desirable, such as theaters, churches, classroom, library and operating rooms. Portable personal jammers are available to enable their owners to stop others in their immediate vicinity from using cell phones. It is easy to use and carry. The desktop jammer has better jamming performance and larger electronic jamming range
This kind of device can be divided into frequency, band and function according to jammer attribute categories . You can find the jammer device according to your needs.
At present, this kind of equipment is being used in many fields. It is now used in cinemas, restaurants, cafes, theatres and other places
With the progress of science and technology, our lives more and more convenient. But, the same also brings a lot of trouble:
Telephone calls may be eavesdropped, WiFi may be compromised, electronic devices with cameras may be invaded, personal privacy has received a great threat. Not to mention the ubiquitous drone and GPS positioning. In order to protect your personal privacy and communication security, may be you need try using wifi jammer.
Buy a cheap mobile blocker device have become a necessity for accomplishing a more cultured society because there is a growing demand for controlling the use of cellular phones in public places such as religious places, theaters, libraries, and others.
With the popularity of smart devices, in addition to the above notice places, some other places also need this equipment
There's no question that in most offices, email and the Internet are absolute necessities. But are cell phones? In a survey by Pew Research, only 24 percent of adults with full- or part-time jobs listed a cell or smartphone as "very important" to getting their work done. In other research, 50 percent of bosses think a cell phone is a negative to workplace productivity.
Just as a parent has the ability and right to cut off the Wi-Fi at home, they should have the option to cut the cellular signal if desired. Grabbing phones from hands to put them in airplane mode probably won't work, and making the house into a Faraday cage is an extreme only the tin-foil hat crowd should try. But an in-home Cell Phone Jammer should be an option whenever desired or necessary.
However, in the United States, if you own a car, this device is also required. Why say so? For two reasons. The first reason is GPS tracking. As GPS trackers become more available in the United States, you never know when you're being tracked. The second reason is driving safety. As we all know, young people nowadays can't live without their mobile phones. It's not hard to imagine them using it while driving. This is very dangerous!!! So we need a jammer to prevent them from using mobile phones
In addition to the above devices, the anti-tracking jammer is also very necessary. Now, because GPS tracking devices are so easy to buy, they're easy to install on a car. At this time, GPS backtracking jammers are required.
Of course, as drones proliferate, more and more organizations and individuals need to use drone jammer to manage them.
Determine how often you want the jamming signal before buy jammer.If it's legal in your area, all you need to do is buy one and turn it on close to your network source to blocker signal.The shielding range of the wireless network jammer is related to the strong electromagnetic field of the shielded site and the distance from the communication station.
Interference can interfere with emergency radio communications and other important communications. Even if it's legal in your area, it's best not to use jamming devices in densely populated areas.
After the powerful signal jamming device completes the startup, it can shield the designated signal within the scope of action within more than 30 seconds; at the same time, it also has the function of slow start. from zero to a steady state.
It can effectively shield all kinds of signals, thereby blocking the communication between the receiver and the walkie-talkie, so that all kinds of wireless invisible earphones connected to the walkie-talkie system cannot work normally. What it shields is only the signal, not the Affect the normal operation of other electronic equipment.
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A radio is a device that uses electromagnetic waves to send and receive information in the form of sound or data. Of all electromagnetic waves propagating in free space (including air and vacuum), radio is one of the finite frequency bands. The upper limit frequency of the frequency band is 300GHz, and the lower limit frequency is less uniform. In various versions of radio frequency specifications, the common frequency ranges are 3KHz~300GHz (ITU-International Telecommunication Union regulations),9KHz~300GHz,10KHz~300GHz.Radios are used for a variety of purposes, such as broadcasting music and news, two-way communication between individuals or groups, and data transfer between devices.
They've been used for everything from emergency communications during disasters to providing entertainment in homes and cars.
A portable jammer is a compact device that transmits signals at the same radio frequency as a cell phone, interfering with or blocking the phone's communications with cell towers. This prevents the phone from receiving and sending signals, effectively rendering the phone useless within the jammer's range. It is often used in situations where temporary or discrete signal jamming is needed.
Portable jammers are small and lightweight, usually about the size of a smartphone or small router, making them easy to carry and hide if needed. They are powered by rechargeable batteries and can operate without a direct power source. Some devices are designed to be plugged into a car cigarette lighter or wall socket. They are often designed to be simple to operate with minimal setup, such as one-button activation. Some custom-made portable jammers allow the user to select specific frequencies to be jammed while leaving other frequencies unaffected.
Specific frequency devices can target a variety of frequencies, including mobile networks, Wi-Fi, GPS, and radio signals, and sometimes 5G.
Jammers, owing to their compact design and reliance on battery power, possess a relatively restricted effective range. Generally, their operational range spans from 5 to 20 meters, influenced by the device's power output and the surrounding environmental factors. Numerous portable jammers offer users the ability to modify the output power, enabling them to tailor the jamming radius to accommodate various scenarios.
Often used to create a "no phone zone" in private meetings or to prevent location tracking in some cases.
A desktop jammer is a fixed signal shielding device with relatively strong signal power, which blocks communication signals within the range. Unlike portable jammers, desktop jammers are larger, more powerful, and have a wider range of influence, from 10 to 100 meters, depending on the power of the jammer and the environment in which it is used. . Suitable for fixed places such as offices, conference rooms or VIP security facilities.
Desktop jammers are designed to be placed on a table or installed in a fixed position to ensure 24-hour continuous operation without battery charging, so they are powered by AC. They are usually equipped with large fans or heat sinks to prevent overheating and device failure during long-term use.The jammer has a wide frequency coverage and can block multiple frequencies at the same time, shielding GSM, CDMA, 3G, 4G and 5G mobile networks/Wi-Fi (2.4GHz, 5GHz)/Bluetooth and radio frequencies (VHF/UHF).
It is powerful and effective with high output power. The jammer power/radius and/type can be customized according to specific needs. The price is usually more expensive and requires a stable power supply for continuous power supply.
To block mobile phone signals within a specific range, a so-called mobile phone signal blocker, also known as cell phone jammer, can be used. The working principle of a mobile phone signal blocker is similar to an RF jammer, which interferes with the communication signal of the mobile phone by transmitting radio signals, thereby preventing the mobile phone from working properly within this range.
Mobile phone signal blockers typically use low-power power supplies and antenna transmitters, which transmit one or more radio signals with frequencies similar to or close to the mobile phone, thereby interfering or blocking the mobile phone signal.In addition, when using this device, great caution must be exercised to ensure that it does not interfere with emergency calls and other necessary communication.
The radio may come from many consumer electronics, such as cordless telephone, Bluetooth headsets, microwave ovens and even electric garage doors, which may interfere with the normal operation of Wi Fi wireless signals.
The use of radio jammers can achieve the shielding of radio signals within a certain range. A radio jammer is a device that emits a radio frequency signal at the same frequency as the target radio signal, which interferes with communication between the radio transmitter and receiver.
However, it should be noted that the use of radio jammers in most countries/regions may lead to serious legal consequences. The use of radio jammers can damage critical communication systems such as aviation and navigation systems, and may lead to property damage. Therefore, radio jammers can only be used under authorized and necessary special circumstances.
Avoid using radio jammers and instead take legal and safe measures to protect radio communication. One such measure is to use encryption technology to protect communication between the transmitter and receiver. Another measure is to use directional antenna to concentrate the transmission of radio signals in a specific direction, which can reduce the interference to other radio signals around.
It is recommended to consult licensed professionals who can provide advice on appropriate legal and technical measures to be taken when handling wireless signals
