Pain points and difficulties in installing and using mobile phone jammers in cities
The application of 5G communication technology has been widely deployed and popularized in various cities in the past three or four years. Mobile phone end users have almost completed the upgrade process from 4G to 5G mobile phones. This is like a contradiction and a shield. , in places where the use of mobile phones needs to be restricted, the upgrading and replacement of mobile phone jammers is also being carried out simultaneously. However, according to information fed back to us by many dealers and customers, during the installation and commissioning process of mobile phone signal shielding projects, we encountered many more difficult problems than in the previous 3G or 4G era, especially in bustling urban areas. In urban areas, this situation is particularly prominent. Here we will summarize the pain points and difficulties in installing and using mobile phone jammers in cities, and propose corresponding analysis and solutions.
According to the construction and deployment information of 5G base stations disclosed by major operators, we can clearly know that in the main urban areas of the city, the construction density of 5G base stations is much higher than that of previous 3G and 4G base stations. Moreover, from the perspective of 5G spectrum division applications, the 2600MHz and 3600MHz high-frequency bands are mainly used. Compared with the 1.8GHz band and 2.1GHz band used by 3G and 4G a few years ago, this is a shift towards higher frequencies. One step further. The higher the frequency, the worse the diffraction ability of radio frequency information, the worse the anti-interference ability, and the shorter the transmission distance will be. In order to ensure stable transmission of 5G signals and reliable data transmission rates, various communication operators can only build 5G base stations more densely. This brings huge trouble to whether the mobile phone jammer can achieve the ideal shielding effect. The closer the 5G base station is to the mobile phone jammer, the worse the shielding effect reflected by the shielding equipment will be. If the construction density of 5G base stations is less than 500 meters apart, or even reaches a distance of two to three hundred meters, the use of conventional low-power 5G shielding equipment will indeed provide little shielding effect.
Due to the excessive construction density of 5G base stations, the impact on mobile phone jammers cannot ensure sufficient shielding range. The solutions are usually tried in the following ways: for the 5G frequency band on site, separately add high-power modules corresponding to the frequency band; Or replace the original omnidirectional antenna with a lower gain value with a directional antenna with a higher gain value.