We can't live without mobile phones, which can be said to be inseparable from each other. So, is it really big that mobile phones have less power and radiation? Let's see what the experts suggest!
As we all know, mobile phones transmit and receive voice and data information through electromagnetic waves. Different mobile phones transmit information through base stations, and the signal coverage of each base station is limited, so the signal strength in different areas will be different. When the signal strength is weak, the mobile phone will strengthen the radiation intensity to receive more signals. Therefore, the radiation intensity of the mobile phone is related to the signal strength rather than the power.
Since the radiation of mobile phone is related to the signal, will the radiation intensity of mobile phone reach 1000 times of normal level when the signal is weak? This is possible.
For example, when the GSM mobile phone works at 1800MHz, when the signal is weak, its maximum peak power can reach 1W, while when the signal is full, the minimum power is 1MW, with a difference of 1000 times, so this statement is valid.
Although the difference between the highest radiation energy is 1000 times, we should not worry too much. After all, we only compare the highest value and the lowest value in an ideal state. In practice, it is difficult to reach this peak. Even if the radiation reaches the highest value, it is only 1W, which is still within the scope of national standards, and has little impact on health.
Although cell phone radiation has little impact on health, it is not without harm. To be safe, it is recommended that you try not to answer and call for a long time in a place with weak signal. When answering and making calls, try to use earphones to minimize the harm of cell phone radiation.
Harm and avoidance of mobile phone radiation:
1. When you feel that the head or face of the receiver starts to heat up, stop the call immediately, and use hot water to scrub and massage the face, so as to promote the recovery of the injured tissue.
2. The moment when the phone is turned on and the seconds before and after the phone is connected are the times when the electromagnetic radiation of the phone is the strongest. Therefore, in these two periods, it is better not to let the phone close to you or listen to you.
3. It is recommended that people who use mobile phones and long-term calls frequently use headphones. The main effect of mobile phone radiation on the head is near-field radiation. When the mobile phone is more than 30cm away from the head, the radiation on the head will be greatly attenuated. Using headphones is more than 100 times less radiation than using the phone's head. Especially for those people who are sensitive to the radiation of mobile phones, the use of earphones will eliminate the self-conscious symptoms of users.
4. Try to reduce the call time of mobile phone, and don't "cook the phone". If the call time really needs to be long, you can stop it in the middle and divide it into two or three conversations. As the thermal effect of radiant energy is a process of accumulation, we should try to reduce the time of using mobile phone every time and the number of times of using mobile phone every day. When it is necessary to talk for a long time, it is more scientific to use left and right ears alternately.
5. It should be noted that the weaker the display signal of the mobile phone means that the farther away the mobile phone is from the base station, the larger the transmission power of the mobile phone will be at this time. It is beneficial to use the mobile phone as short as possible.
6. Nowadays, most mobile phones support Bluetooth function, and the use of Bluetooth headset can effectively reduce the radiation damage of mobile phones.
7. When charging the mobile phone, the socket should be 30 cm away from the human body, and should not be placed beside the bed, otherwise the immune function cells may be exposed to radiation and the number will be reduced.