precisejammers的部落格

Ein Signalstörsender ist ein elektronisches Gerät, das dazu dient, drahtlose Kommunikationssignale wie Mobiltelefonsignale, WLAN-Signale, GPS-Signale, Bluetooth-Signale usw. zu stören, zu blockieren oder abzuschirmen. Signalstörsender senden elektromagnetische Interferenzsignale mit bestimmten Frequenzen aus, die das Zielsignal stören oder mit ihm in Konflikt geraten, was dazu führt, dass das Zielgerät nicht normal kommunizieren kann.

Hier sind einige Anwendungsfälle für den Einsatz von Signal Störsender:

Generally, radio signal shielding is only approved when important situations such as the college entrance examination occur. Moreover, from the perspective of the "control area", signal shielding in our school does not exist. According to many students, signal shielding not only covers the nearby corridors, but also seriously affects the quality of self-study. In addition, according to our tests, outside the school, near the corridor of Qinsu Building, the signals of operators are interrupted one after another. Taking China Mobile as an example, the signal is about 20dBm lower than when it is not installed, and the SINR signal-to-noise ratio has also dropped from the normal 11-15 to 3-8. The value of the signal has greatly changed the function of the Internet. We noticed that even passers-by passing by the school will send out false signals on their mobile phones. Portable WiFi jammers in the classroom should not be missed. We collected data. In order to obtain more accurate analysis data, we will next conduct in-depth communication with the three major operators.

In some situations where a quiet environment is needed, we hope that most people will not be disturbed by the ringing of mobile phones, such as when praying in a church, at a social gathering, at home or in a theater, etc. Occasions. To achieve this goal, wifi jammers are generally installed or installed in these situations. Considering the wide coverage and diffusion of 4G cellular networks, is there a device that can effectively block 4G signals and help people get a quiet environment?

The mobile phone 8-channel signal jammer (SYT-401-DZ 8-channel multi-function radio jammer) is a device specially designed for quiet environments. It can isolate GSM, CDMA, DCS, PHS, TD-. It supports SCDMA, WCDMA, CDMA2000, WiFi, GPS, VHF, TDD, FDD, 4GUHF and other signals. The mobile phone can be used after leaving the isolation area, and it is harmless to the human body. The effective shielding distance of the 8-way wireless multifunctional signal jammer SYT-401-DZ can be set to 1-40 meters, and full-band shielding of GSM/CDMA/DCS/PHS/WCDMA/TD-SCDMA/CDMA2000-/ WiFi/GPS-4G signals can be achieved. In addition to the well-designed cooling system, the built-in fan and stable capacity enable this 4G signal jammers to easily achieve work goals and always maintain good working conditions. It can work continuously for 24 hours with a transmission power of only 32W.

From maritime navigation to financial transactions, we are increasingly reliant on GPS. As a result, jamming and identity theft can wreak havoc and pose a threat to public safety. Fortunately, spectrum monitoring can detect and locate sources of jammers, and is able to prevent attacks through anti-jam and anti-spoofing techniques.

In London, a common use of signal jammer device is by taxi and HGV drivers evading maximum driving time regulations or attempting to prevent employers from complying with them. Elsewhere in the world, GPS jamming has been used for more sinister purposes. In 2016, South Korea was the target of a massive North Korean GPS jamming campaign, affecting the navigation of ships and aircraft.

There are always situations in life where you need to use a jammer, so how long can a jammer last?

The working time of a signal jammer is a very interesting thing. In fact, there are many factors that affect it, including the type of battery, the use of a power adapter, heat loss and other factors. All of these factors combine to determine how long a signal jammer can be used, otherwise any factor will prevent it from working uninterrupted.

A common battery type for most jammers is a lithium-ion battery. This battery can power a signal jammer for 2 to 4 hours, depending on its power and energy consumption. After the battery is exhausted, it must be recharged for about the same time, sometimes even longer. There is also the use of a power adapter.

Everyone knows what CCTV cameras are, so my question is: can I use some kind of wifijammer to keep this rude thing away from me?!

The principal of a high school in Salzburg wanted to use a jammer to prevent cheating with a mobile phone during written Mathura, and the Ministry of Communications' Telecommunications Office confiscated the transmitter and filed a lawsuit against the principal. He bought the device completely legally from a school supplies supplier in Sankt Pölten. The procedure ended with a warning. Gerhard Klampfer, dean of the Salzburg School of Economics, confirmed the radio report of the Salzburg ORF to APA on Monday.

I wonder if a special device can be used to block wireless mice. At work, almost everyone uses such devices. It's exciting to see the faces of employees when all devices are turned off. Would this be a bit dangerous? Would I be responsible for this? It's exciting to know the answer.

It is true that science and technology have made great strides in the past few years. Nowadays, mobile phones are not only not superfluous, but have become fashionable. The current situation is that operators of theaters and other venues are strongly calling for the development of effective countermeasures. If you want to stop them, you can use a GPS jammer to restrict the sending and receiving of mobile phones in your surroundings. Prevent the use of nuisance mobile phones and provide a quiet space with good manners. A simple and effective method is the use of a mobile phone signal blocking device. It is very effective in places that are inconvenient for mobile phones (places with poor environments).

As a measure against nuisance mobile phone use, the use of communication jamming devices in public places is permitted. In places where the jamming device is working, the mobile phone will be in a "out of range" state. The public is in favor of this measure. Jamming is expected to be implemented at the time, but the global mobile phone industry is naturally not silent. Measures to jam mobile phone communications in public places are permitted. Communication jamming devices disable mobile phone calls, voicemails, and sending and receiving text messages. Communication jammers are used by ordinary citizens.

After investigation, it was found that the leak was caused by different time zones across Russia. Russia crosses nine Eurasian time zones. The national exam will start at 10 a.m. local time. This means that candidates in the Far East will start nine hours earlier than candidates in Western Europe. At the end of the exam, candidates from the Far East posted the exam questions online, and candidates from Western Europe received the exam questions. Prime Minister Medvedev was very angry about this and asked the committee to consider and cancel the candidates' exam results. Russia has formulated a series of detailed and strict disciplinary measures against cheating in the college entrance examination.

Mobile phone jammers are mobile phone signal jammers. At present, mobile phone signals mainly include 2G, 3G, and 4G signals, but with the development of science and technology, 5G signals will soon be generated and will be popularized in the near future, allowing the network to be unobstructed. In the information age, these are all manifestations of human progress. The generation of 5G signals will inevitably lead to the generation of 5g jammer signal interference. Mobile phone signal portable jammers can be installed in quiet public places such as libraries. We recommend stopping calls and providing a quiet reading environment.