Self-made mobile phone signal shielding device

Self-made mobile phone signal shielding device

Self-made mobile phone signal shielding device, many children will come into contact with various electronic products from birth, which is actually harmful to their growth and development, so we all need to keep children away from mobile phones in time. Let's take a look at the homemade mobile phone signal shielding device.

The manufacture of self-made mobile phone signal shield 1 mobile phone signal shield is a complicated process, and some things cannot be pieced together. First of all, you have to understand the working principle of shielding, the drawing of circuit and circuit board. Then you need to make boards, patches, welding, debugging, testing and so on. And no process is impossible.

It is better to buy a cheap mobile phone signal shield directly on the Internet, and it will work when it is powered on. You can use the hand-held shield in the dormitory and turn it on for an hour at night.

Method of shielding mobile phone signal

way

The easiest way to block the cell phone signal is to turn on the flight mode of the cell phone. Mobile phone flight mode is a convenient mobile phone signal mode introduced by manufacturers to meet the needs of users in some cases where mobile phone signals are not allowed. For example, on the plane, in a meeting, when you need to concentrate on something, when you need a good sleep. In addition, some places with strong magnetic field or abnormal magnetic field will also cause some interference to the mobile phone signal.

software

There is no real mobile phone signal shielding software on the market at present. The so-called mobile phone signal shielding software is a kind of junk software, which can only shield mobile phone signals on the surface, but it has no effect in fact. If you find some mobile phone signal shielding software in the application market and download it.

You will find that all these applications can do is superficial data articles, without really changing the signal strength of other devices. If you really want to shield other mobile phone devices in some occasions, it is recommended to buy some professional mobile phone signal shielding devices, because shielding mobile phone signals requires professional hardware, not some simple software.

equipment

There are many kinds of mobile phone signal shielding devices, generally handheld and installed. Generally, the shielding range of mobile phone signal shielding equipment on the market is 1-300m (depending on the power and use environment of the shielding equipment). The working principle of mobile phone signal shielding equipment is to shield some other frequency band signals sent by mobile phone signal shielding equipment.

Search and interfere with the communication signal of the mobile phone, resulting in that the mobile phone cannot normally connect to the communication base station. Achieve the purpose of sending and receiving information and calling abnormally. Mobile phone signal shielding equipment is generally used for large-scale examinations, such as college entrance examination, civil service examination, and security work and security projects of security organs.

Self-made mobile phone signal shielding device 2 mobile phone signal shielding equipment

There are many kinds of mobile phone signal shielding devices, generally hand-held, wearable and desktop-emitting. The general shielding range of mobile phone signal shielding equipment on the market in Fiona Fang is 500m.

The working principle of the mobile phone signal shielding device is to search and interfere with the mobile phone communication signal through some signals in other frequency bands sent by the mobile phone signal shielding device, so that the mobile phone can not be normally connected with the communication base station. So as to achieve the purpose of not sending and receiving information and making phone calls normally. Mobile phone signal shielding equipment is generally used for large-scale examinations such as college entrance examination and national civil service examination, as well as state secret projects. For example: research and development of new products in military enterprises.

Software for shielding cell phone signals

The reason why I talk about this topic is to tell you. There is no real mobile phone signal shielding software on the market at present. The so-called mobile phone signal shielding software is a kind of junk software that only shields mobile phone signals on the surface, but actually has no effect. If you find some mobile phone signal shielding software to download in the application market, you will find that all these applications can do is superficial data articles.

But it does not really change the signal strength of other devices. So if you just want to have fun, you can download these softwares and use them. But if you really want to block other mobile phone devices in some occasions, then I suggest you buy some professional mobile phone signal shielding devices. Because shielding cell phone signals requires professional hardware rather than some simple software.

Method of shielding mobile phone signal

In fact, the easiest way to block the cell phone signal is to turn on the flight mode of the cell phone. Mobile phone flight mode is a convenient mobile phone signal mode introduced by manufacturers to meet the needs of users in some occasions where mobile phone signals are not allowed. For example, on the plane, in a meeting, when you need to concentrate on something, when you need a good sleep.

Secondly, some specific frequencies emitted by other signal transmitting and receiving devices will also interfere with the communication signals of mobile phones. In addition, some places with strong magnetic field or abnormal magnetic field will also have certain interference effect on mobile phone signals.

Self-made mobile phone signal shielding device 3 small tricks to shield mobile phone signals

A, signal shielding science

Do you know how cell phones receive signals?

Receiving signals on a mobile phone is actually like chatting with a base station. First, it sends "hello" electromagnetic waves to the base station to show its friendliness. After receiving "hello", the base station responded, so the mobile phone received the signal.

Cell phone signal shielding device is like a big speaker. When the mobile phone sends a friendly greeting, it will send out disturbing "noise", so that the base station can't hear the call of the mobile phone and can't respond to the mobile phone, thus shielding the mobile phone signal.

Second, the wonderful use of signal shielding device

The unique function of mobile phone signal shielding device is not only used to prevent cheating in exams, can you think of these uses?

1, professional counter-terrorism

The strong coverage and interference of mobile phone signal shielding devices are often used to interfere with the communication of terrorist groups and restrict terrorists from carrying out attacks. In terms of counter-terrorism, SHIELD is professional.

2. Drug control experts

When the police carry out anti-drug operations, the mobile phone signal shielding device can prevent drug dealers from reporting crimes, which provides great convenience for the anti-drug team to carry out anti-drug operations and is a well-deserved anti-drug expert.

Step 3 protect secrets

When the company's secrets are photographed or stolen by the camera phone, the mobile phone signal shielding device can interfere with these devices, so that the stolen secrets cannot be spread, and it is a reliable "spy killer".

Third, pay more attention to signal shielding.

Although mobile phone signal shielding device is active in various fields because of its unique function, some adverse effects also appear in front of us.

1. The large-area signal shielding of signal shielding device will affect the normal use of mobile phones of surrounding residents. If your home is near the school, you should have experienced the pain that the cell phone signal disappears with the ringing of the exam bell.

2. To support a wide range of signal shielding, the radiation generated by the machine will naturally not be low. If we usually live under the radiation of shielding devices, then our health can hardly be guaranteed.

Fourth, mobile phones can also shield themselves.

Of course, if you want the mobile phone to receive no signal, you can't just use the signal shielding of the mobile phone. With some simple settings, your mobile phone can also achieve signal shielding by itself.

1, start flight mode.

Find the "flight mode" function in the settings and turn it on, and your mobile phone will be isolated from the world immediately. Not only the signal, but also the SMS phone will be shielded together to truly shield the mobile phone signal;

2. Turn off the carrier network of the mobile phone.

Find "carrier network" in the settings and turn it off. Your mobile phone can realize network signal shielding, but its SMS phone function can still be used normally. The mobile phone is blocked, but it is not completely blocked;

3. Turn off the WLAN function of the mobile phone.

Finding the function of "wireless local area network" in the settings and turning it off will not help your mobile phone to block network signals, but it can disconnect your mobile phone from the network and allow you to concentrate on the work at hand.

Finally, I would like to remind you that although the mobile phone signal shielding device is small in size and simple in function, its use is regulated by law. Therefore, don't be curious and buy at will, and abuse it privately for fear of going to jail.