Why do gas stations advocate the installation of mobile phone signal jammers?

Why do gas stations advocate the installation of mobile phone signal jammers?

Nowadays, mobile phone signals are almost everywhere. While it is convenient for mobile phones to use, the electromagnetic wave signals generated by it also affect other electrical equipment to a certain extent, especially the petroleum products and appliances in gas stations.

When the mobile phone is not in use, the impact of the mobile phone signal on electrical equipment is minimal. When using a mobile phone, the base station of the mobile phone establishes data communication with the mobile phone, and a random sudden change signal occurs, causing a dynamic magnetic field around the electrical equipment. This dynamic electromagnetic field signal will induce sudden change interference signals. , Causing dysfunction of electrical equipment, causing dysfunction of electrical equipment.

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When the mobile phone battery is activated at a gas station, the mobile phone will ring, and it will generate sufficient energy to cause a slight spark. It will cause a fire when it meets with flammable materials such as petroleum in the air. As a result, we can see that there are express regulations on gas stations prohibiting the use of mobile phones in gas stations. According to the principle, the equipment at the gas station is controlled by a computer. The signal of the mobile phone will affect the normal operation of the equipment, which will lead to the prohibition of metering. More importantly, when the mobile phone is sending or receiving high-frequency electromagnetic waves, the inside There will be high-frequency currents. If the mobile phone has poor contact, it will cause the gas to burn, which will cause the gas station to explode.

The use of cell phone jammer can limit cell phone signals 500M meters away from the launching station. The shielding radius is adjustable, and the coverage area is more than 30 square meters. The mobile phone within this range cannot establish contact with the base station, so to a certain extent, it can avoid the influence of the electromagnetic signal emitted by the mobile phone signal on the gas station. But the mobile phone signal jammer can only shield the mobile phone signal without affecting other electronic devices.

We install mobile phone signal jammers at gas stations, but also pay attention to the following points:

1. Never turn on the device without connecting the antenna, otherwise it will burn out the circuit of the host computer;

2. The equipment adopts seamless steel pipes for fully enclosed pick-up points to prevent problems such as sparking or wire aging, which may cause fires;

3. When the equipment reaches the normal working range, the distance from the communication base station must be greater than 200m, otherwise the shielding range will be reduced or the shielding will not be possible;

4. When using, pay attention to the correct placement of the equipment to achieve the best condition.