Full band signal blockers, also known as signal jammers, are devices used to block or disrupt mobile phone signals within a certain range. These blockers can be categorized into three power levels: low-power, medium-power, and high-power. This article aims to discuss the effectiveness of low-power full band signal blockers when installed outdoors.
Power Levels of Full Band Signal Blockers:
- Low-Power Blockers: These blockers have an emission power of 2-3W or below for each shielding module.
- Medium-Power Blockers: These blockers have an emission power within a certain range.
- High-Power Blockers: These blockers have an emission power of 50W or even 100W.
Choosing the Right Power Level:
The choice of power level depends on the installation environment. In general, high-power blockers are preferred for outdoor areas with large open spaces, while low-power blockers are suitable for indoor environments. It is rare to install low-power blockers outdoors, except in very specific circumstances.
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Effectiveness of Low-Power Blockers for Outdoor Installation:
When low-power full band signal blockers are installed outdoors, their effective shielding range is typically only 2-5 meters. This limited range is due to their lower emission power. Customers are unlikely to be satisfied with such a short distance of blocking.
Factors Affecting the Effective Range:
The actual shielding range of full band signal blockers is closely related to the strength of the mobile phone signals in the area. The stronger the signals, the shorter the effective blocking distance. In outdoor environments, the strength of mobile phone signals is generally at least 10dB higher than in indoor environments.
For outdoor areas with large open spaces, high-power blockers are the recommended choice. Installing low-power blockers outdoors would require a dense installation of cellular network systems to achieve wide coverage. This approach is not practical due to the need to purchase a large number of blockers and the challenges associated with power supply and installation.
In conclusion, low-power full band signal blockers are not as effective when installed outdoors compared to high-power blockers. Their limited emission power results in a shorter effective blocking range. It is crucial to consider the strength of mobile phone signals in the installation environment when selecting the appropriate power level for signal blockers.