Why can't gas stations use mobile phones?

Gas stations often have signs such as no phone calls and no smoking, but what's wrong with gas stations not making phone calls?

What's the harm of calling the gas station by mobile phone?

This may cause an explosion. It sounds sensational, but the theoretical explanation is quite reasonable: the mobile phone is a kind of wireless communication equipment, which emits radio waves, that is, radio frequency electromagnetic radiation, which can be induced from the antenna receiving radio. When RF waves circulate between metal conductors of mobile phones, once they are corroded or have poor contact, RF sparks will be generated. If the mobile phone is dialing out, the radio frequency wave power emitted by the antenna at the moment of connection is the largest, which will ionize the air around the mobile phone, and the ionized air will produce discharge phenomenon, that is, electric spark. Whether it is radio frequency spark or electric spark, it is possible to detonate the air containing gasoline around it, causing an explosion. Therefore, when the mobile phone presses the switch, there will be a slight spark. Some old mobile phone lines are aging, and sparks may also occur during use. If a fairly high concentration of combustible gas had accumulated in the air at that time, an explosion might have occurred.

2. When a vehicle refuels, when a gas station injects gasoline into the fuel tank of a car or motorcycle through an oil gun, the oil and gas in the original empty fuel tank will float outward, and the newly injected gasoline will also volatilize into the air, so that the oil and gas density around the refueling vehicle will suddenly increase. At this time, if you make a phone call or answer a phone call nearby, the electronic friction generated by the mobile phone in the state of transmitting or receiving signals may ignite the fuel vapor and cause an explosion.

3. This leads to inaccurate measurement of the tanker. At present, the tankers used in gas stations are generally controlled by computers, and cell phone signals will affect their normal work.

Although normal use of mobile phones will not cause fire or explosion at the gas station, if there is a sign prohibiting the use of mobile phones, it is best to abide by the regulations of the gas station. After all, no one wants to test the scientific nature of the statement with his life.