Will there be a signal on the mobile phone when I take the train?

Generally speaking, there is a signal for the mobile phone, but there is a blind spot on the train, depending on where the train passes.

The network signal has to go through the base station, and then find your mobile phone. Sometimes you may not even have a signal, and sometimes it is normal that you can't receive the message even if it is full, because the train is running at a high speed, and there may be no signal at the blind spot of two base stations, or the signal at the junction of two base stations is full, but the information can't be sent out.

Your mobile phone keeps changing stations on the train, especially when changing stations. Moreover, many areas where trains travel are only paved with 2g networks, which will also affect the signal strength. There is basically no signal in the tunnel. When the train passes through the mountainous area, there will be no signal because the base station cannot cover it, so the cell phone signal on the train will be intermittent.

The factors that affect the cell phone signal are as follows:

1. Location distribution of base stations (that is, transmission towers for mobile communication), such as outdoor stations on roofs or mountains, or indoor distributed systems, the closer the antenna is to users, the better the signal;

2. It is related to the height, pitch angle and azimuth angle of the antenna. The closer the antenna is to your position, the better the signal.

3. It is related to the transmitting power of the base station. The greater the transmission power, the better the received signal;

The above is the relationship between local settings and signals;

4. The quality of the mobile phone itself determines the quality of your signal;

5. Your position determines the signal quality. For example, if you are in a low-lying place, subway, basement, or a place with dense houses and thick concrete walls, the cell phone signal will be poor. On the contrary, the signal will be good on the roof and open space.

Mobile phones are a small part, and good quality mobile phone signals will be better. Most of the signals are related to operators. For example, mobile phones are relatively better and buildings are shielded.