Prefix To Block Cell Phone Caller Id
When the phone battery is activated at the gas station, the phone will ring and it will generate enough energy to cause a slight spark. Combustible substances such as petroleum in the air can cause fires. It can be seen that gas stations have express regulations prohibiting the use of mobile phones at gas stations. According to the principle, the equipment of the gas station is controlled by the computer. The cell phone signal will affect the normal operation of the device, making it impossible to measure. More importantly, when the mobile phone sends or receives high-frequency electromagnetic waves, there will be high-frequency currents inside. If the phone is in poor contact, it can cause the gas to burn, which can cause the gas station to explode. Prefix To Block Cell Phone Caller Id Using a mobile phone signal jammer can limit the mobile phone signal to 500M meters away from the transmitting station. The shielding radius is adjustable, covering an area of more than 30 square meters. Mobile phones within this range cannot establish contact with the base station, so the influence of electromagnetic signals from mobile phone signals on gas stations can be avoided to a certain extent. The cell phone jammer developed by us can only shield mobile phone signals and does not affect other electronic devices, so you can use it with confidence.
When the mobile phone is in use, the mobile phone antenna will generate radio frequency current. When RF current circulates between metal conductors, RF sparks are created to prevent corrosion or poor contact. Some experts have done experiments. As long as the RF spark lasts longer than a microsecond, a gas and air mixture is induced when the energy is greater than 6 milliwatts. Because when the gas station fills the gas tank of a car or motorcycle with a fuel gun, the oil vapor in the original tank will drift outward. Although our gas stations are equipped with vapor recovery devices that can recover most of the vapor, there is still a small amount of vapor that evaporates into the air, increasing the density of oil vapor around the fuel truck. At the same time, in order to make the communication signal clearer, the mobile phone uses a higher frequency and a relatively strong transmit power. The electrical current inside the phone can also create tiny sparks. While meeting national standards, it still poses a threat to gas stations. In order to solve this threat, the state generally allows gas stations to install Prefix To Block Cell Phone Caller Id to protect people's lives and property.