Comparison of 5G Base Station and 4G Base Station Coverage
Since the beginning of 3G construction, the issue of base station radiation has been widely discussed. Frequent community protests in the media and news prevent operators from installing signal stations on or near rooftops.
Since the coverage distance of the 2G base station is about 10km, 3G is about 5km, 4G is only 3km, and 5G is about 500m. So 5G requires more base station distribution.
Why is the coverage area of 5G base stations only 500 meters?
The speed of electromagnetic waves is equal to the speed of light. For the base station, the setting distance is completely based on the physical formula that we learned in high school.
light speed= frequency * wavelength.
The speed of light is a fixed value: C.
In order to increase the network speed, higher frequencies need to be used to transmit more data. But high frequency will lead to a shortening of signal transmission distance. The higher the frequency range of the radio signal, the greater the signal attenuation and the lower the bandwidth. Because 5G uses a higher frequency bandwidth, the diffraction ability of waves becomes weak. When the signal passes through the walls of the room, the higher the frequency on the 5G base station, the greater the chance of circuit interruption.
In addition, the greater the starting power of the base station, the greater the coverage; the higher the height of the base station, the greater the coverage and the smaller the loss. Since the 5G network uses millimeter wave technology, which has weak magnetic permeability, it will rapidly attenuate electromagnetic waves, so its anti-interference ability is weak also.
Due to the high frequency of the 5G-millimeter wave, and the large transmission loss, more base stations need to be built to meet the communication requirements. The closer distance of the 5G base station, the better the signal of the mobile phone, and the less electromagnetic radiation reaches the user. So, an increase in the density of the base station will not lead to an increase in radiation hazards, on the contrary, it will reduce the radiation hazards caused by mobile phones.
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