In the current era of comprehensive coverage of 5G networks, the installation of signal jammers in urban main urban areas is facing new challenges brought about by technological upgrades. According to publicly available data from telecom operators, the density of 5G base stations in urban areas has exceeded 500 meters, with some areas even reaching 200-300 meters. Compared to the 1.5-2 kilometer base station spacing in the 3G/4G era, its deployment density has increased by nearly 6 times. This change directly leads to a significant attenuation of the shielding effectiveness of traditional low-power interference devices in the 5G high-frequency band (2600MHz-3600MHz) scenario.

The core of the technological contradiction lies in the mismatch between spectrum characteristics and equipment capabilities. Although the high-frequency band used in 5G can achieve higher rates, the signal penetration is weak and the coverage area is small, requiring dense networking to ensure continuous coverage. When the distance between the jammer and the 5G base station is shortened to within 300 meters, the signal strength of the base station can reach -75dBm or more, far exceeding the suppression threshold of -90dBm for conventional jamming equipment, resulting in weakened shielding effect. Especially in densely populated areas such as commercial complexes and transportation hubs, the problem of interference blind spots is more prominent.

In response to this dilemma, the industry is exploring multidimensional solutions: at the technical level, by stacking 2.6GHz/3.5GHz dedicated high-power modules (single frequency output power ≥ 50W), the suppression capability of the 5G main frequency band is improved; At the antenna level, the traditional omnidirectional antenna is upgraded to a directional antenna with a horizontal lobe width of 30 ° -60 °, and energy is concentrated in the target area through spatial focusing technology to reduce signal leakage in the direction of the base station; At the algorithmic level, an AI environment perception system is introduced to scan the frequency points of surrounding base stations in real-time and automatically match interference strategies.

Practice has shown that the combination of "high-power module+directional antenna+intelligent frequency modulation" can increase the 5G shielding coverage from less than 40% to over 85%. With the launch of 6G technology research, interference devices are evolving towards millimeter wave frequency band expansion, dynamic spectrum tracking, and other directions. In the future, an intelligent shielding system that synchronizes with the intergenerational upgrade of mobile communication networks may be formed. The essence of this technological game is the dynamic balance process between the upgrading of communication infrastructure and the demand for public space management.

[Shengma]jammer| Nanjing Baikang Electromechanical Technology Co., Ltd. - www.bokangtech com-ljw