Why is there no signal from Unicom in Zhuyuan Town, Qingchuan County, Guangyuan City, Sichuan Province?

At present, the 2G and 3G signals of China Unicom have basically covered the whole country, and the main reason why the signals can't be received in some places is that electromagnetic waves are influenced by many factors such as topography, landforms, tall buildings and climate. So that only weak signals can be received in a certain range, such as the basements and the first and second floors of some floors, which is a very normal phenomenon. In some places, 3G network signal coverage is not complete, or there are signal blind spots, which will lead to poor reception signals. For example, in rural areas, Unicom's 3G signals basically cover cities, and rural 3G signals are not fully covered, so receiving 3G signals in rural areas will be poor, or there will be no 3G signals. In the absence of 3G signal, the current mobile phone will automatically switch to 2G signal, and Unicom's 2G signal is still relatively good in most areas. If there is no signal in your area, it is recommended that you call 100 10 to report, and the staff will come to the door for testing.