Nowadays, people cannot do without mobile phones. People always put their hands on their phones all day long, but some places will block the phone signal. Next, greatjammer will tell you what the cell phone jammer is for and how to use it?

Telephone signal jammers are mainly used in places where the use of mobile phones is prohibited, such as examination rooms, schools, gas stations, churches,…

Techniques that deliberately interfere with electromagnetic frequencies (also known as interference) have been implemented in various devices, which are gradually provided to individuals and organizations. The interference is becoming smaller, more convenient, easier to use and cheaper, although in fact in most countries in the world, the interferencer is illegal. Although certain interferencers will block communication without differentials, there are several dedicated devices that are…

A cell phone jammer is a jamming transmitter that emits a weak radio signal to separate the connection between the cell phone and the radio base station. The interference effects can be digitally controlled to create quiet areas in restricted places. HandyBlocker is especially suitable for administrative offices, meeting rooms, conference centers, corporate headquarters, libraries, cinemas, places of…

Are jammers harmful to people or cell phones? The signal jamming device sends out electromagnetic signals. This type of jamming device has passed microwave radiation testing and certification. This radiation intensity is very weak and does not harm the human body. The cell phone jammer only blocks the forwarding signal from the phone, so the phone itself is not damaged and a connection to the base station…

According to the recently released FAQs about FCC portable jammer phones, they are "illegal radio transmitters designed to prevent, prevent, or interfere with authorized radio communications." And keep in touch. "Since the Philadelphia incident, "cell phone jammer" have been the top ten search queries in Google Trends. It is illegal to own or use one without the authorization of the US government. These…

As the number of days for the college entrance examination is decreasing every day, many schools have been busy recently, and they have been preparing materials and machines for the examination room. This allows candidates to take the exam in a stable and orderly environment. This is also the responsibility of the school. Therefore, recently we can see that a machine has been installed in the examination room. This is a test signal…

Installing "cell phone jammer" in classrooms is a costly and unpleasant thing. The leaders and teachers of Shishi No. 3 High School will not be unaware of this. They decided to overcome the trouble and implement the installation in the high school. Through this action, what we see is the school's heavy responsibility to students.

With the development of the market economy and the progress of science…

Installing "cell phone jammer" in classrooms is a costly and unpleasant thing. The leaders and teachers of Shishi No. 3 High School will not be unaware of this. They decided to overcome the trouble and implement the installation in the high school. Through this action, what we see is the school's heavy responsibility to students.

With the development of the market economy and the progress of science…

Many places use GPS signal jammer phone jammer

GPS jammer is specially designed based on satellite positioning (cars, mobile phone positions, Google network positioning, etc.), which brings inconvenience to certain confidential units and individuals. The jammer is aimed at all the characteristics of the GPS satellite positioning system. When using this product in an area of ​​2-15 meters, it can…

You must keep in mind that wireless networks will never receive high security measures, because these measures can be used at relatively large distances outside the building. But the point is, you can determine who is frequency jammer hacking from the outside by looking at the connection speed. The trick is that the weaker the signal, the weaker the connection, so if you are using a 100 Mbps connection and a 10 or 5 Mb/s connection…

The Symphony Concert Hall used wifi telephone signal jammer to be tested on the basis of the equipment of the three cellular operators currently installed on the site. It can be protected by opening the hull. Strangers cannot access the phone jammer and internal calls cannot be made.

The antenna shield covers the entire audience area, receives incoming signals and analyzes its working frequency band, the corresponding…

When installing a cell phone jammer, the signal source is always the most concerned part. It has to be said that the signal source of the mobile phone is the soul of the jammer. If there is no signal source, even if the mobile phone signal jammer is installed, it will be ineffective. So if you want to use the powerful functions of the jammer, you first need to find a good signal source.

The signal…

When installing a cell phone jammer, the signal source is always the most concerned part. It has to be said that the signal source of the mobile phone is the soul of the jammer. If there is no signal source, even if the mobile phone signal jammer is installed, it will be ineffective. So if you want to use the powerful functions of the jammer, you first need to find a good signal source.

The signal…

US Senator Kay Bailey Hutchinson (R-TX) and US Representative Kevin Brady (R-TX) introduced a bill, namely the "Safe Prison Communications Act of 2009." The legislation will allow the director of the Federal Prisons Service, the governor, or the governor's designate (depending on whether the facility is federal or state-run) to petition the Federal Communications Commission (FCC) to request the authorization to operate signal jammer…