Everyone knows that in the same room, mobile phone signals at different locations and at different times may change greatly. cell phone jammer can perform different shielding operations on mobile phone signals. According to practical experience in signal shielding, it is found that the difference of this change can reach about 10dBm, that is, the difference between the highest power and the lowest power is 10 times. Therefore, full-band mobile phone signal shielding and basic shielding are produced. So what is a shielding device and how is it different?
According to the law that every time the radio signal transmission distance doubles, the power decreases by 6 dBm. In other words, a certain power redundancy increases with the change of 10dBm intensity, and the equipment can be doubled. Otherwise, it may cause intermittent failures during operation. In the case of continuous operation 24 hours a year, this situation is not allowed. When designing special requirements for detention centers and other high-demand occasions, we usually design according to the highest signal and increase this power redundancy to ensure a stable and effective shielding effect under high reliability and confidentiality occasions. This shielding requires Is strict. At present, Shankino mobile phone signal jammer can realize 12 kinds of mobile phone signal shielding, providing a powerful communication environment protection function for the signal security zone, but it is best to use professional layout before using it to achieve the best use effect.
What is the general case of blocking? In general civilian quiet occasions, only in general environments, the shielding area or shielding rate can exceed 98%. Its operating time is intermittent, and generally does not exceed 8 hours of continuous operation, and does not exceed 1500 hours throughout the year. No matter how the external environmental signal changes, the system may not be able to guarantee the absolute safety of the shielding effect at every corner, which is basic shielding. Generally, models with fewer shielding sections such as 4-way and 6-way will be used, and 8-way with higher requirements.