Nowadays, it is increasingly difficult for people to leave their mobile phones, even when they are saying prayers. This problem is a pain for Michele Madonna, the priest of the Church of Our Lady of the Holy Mount in Naples, Italy. According to the Daily Mail, the godfather has finally found a solution -- a full-band frequency jammer. Madonna paid $60 for the device. The priest said he didn't do it out of impatience, but because of the embarrassment he saw when he advised people to turn off their phones and focus on prayer.
The so-called full-band jammer is to scan from the low-end frequency of the channel to the high-end at a certain speed during the working process. This scanning speed can form garbled interference in the message signal received by the mobile phone, so that the mobile phone cannot detect the normal signal sent from the base station. The microwave signal data prevents the mobile phone from establishing a connection with the base station within a certain range, so as to achieve the purpose of shielding the mobile phone signal.
Maybe you're wondering if it's really appropriate for Father Madonna to use a full-band jammer privately? According to him, his actions have been supported by the local police. But apparently, not everyone welcomed the priest's measure. The local store owners were very displeased. They said that the priest's full-band jammer had interfered with their credit card machines.
In some countries, the use of full-band jammers is illegal. In the first half of this year, a man in Florida, USA, was fined $48,000 for driving around with a full-band jammer.
Does the full-band shielding instrument affect other electronic equipment?
From our understanding of the full-band shielding device, we probably know that the full-band signal shielding device can interfere with mobile phone signals. It is used in the examination room to prevent candidates from cheating with their mobile phones. As for how the full-band shielding device works, the types of full-band signal shielding devices are different. is unclear. In terms of appearance, the full-band shielding instrument can be divided into built-in antenna full-band signal shielding instrument and external antenna full-band shielding instrument. The full-band signal shielding instrument with external antenna is a metal shell, and the built-in antenna is a plastic shell. According to the use area And the area of use can be divided into low-power full-band signal shielding device and high-power full-band signal shielding device. If it is used outdoors, the distance between the floors is relatively far. It is recommended to use a high-power full-band signal shielding device.
The working principle of the full-band jammer is to scan from the low-end frequency of the forward channel to the high-end at a certain speed during the working process. This scanning speed can form random interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station, so as to achieve the purpose of shielding the mobile phone signal. Phenomena such as no server system.
In layman's terms, the frequency emitted by the full-band signal shielding device interferes with the normal frequency of the mobile phone receiving the base station, making the mobile phone unable to connect with the base station, so that it cannot make calls, send and receive text messages, and surf the Internet normally. When the full-band jammer is turned on, although the mobile phone will have a full signal, there is actually no signal during use.
When the full-band signal jammer is turned on, it only has a shielding effect on the mobile phone, and its electronic equipment has no impact. This is because the electromagnetic signal emitted by the full-band shielding device is completely within the collection frequency band stipulated by the state, which will only block the communication of mobile phones. And this signal is always in a relatively static state, and will not affect any electronic equipment.
The full-band signal shielding device is not only used in school examination rooms, but also in confidential conference rooms, prison detention centers, troops, etc., especially prisons must be equipped with a full-band shielding device. In order to prevent prisoners from contacting the outside world, it is not allowed to use it. mobile phone. If the full-band signal shielding device is used in a prison, it is recommended to use it with a large and small power full-band shielding device. When there is a shielding blind area, you can use a low-power full-band signal shielding device. In a large area, you can use a high-power full-band signal shielding device. .