What are the misunderstandings about installing cell phone signal jammers in prisons?
In order to better adapt to the needs of the new normal, improve the technological protection capabilities of detention centers, enhance the technological management capabilities of detention centers, promote the construction of smart detention centers, promote the harmonious and stable development of detention centers, and continuously improve the work of detention centers. The level of intelligence requires scientific and reasonable adjustment and prevention of mobile phone signals in residence to avoid security risks caused by illegal use of mobile phones. However, there are generally three misconceptions about installing cell phone signal jammers in detention centers. Let’s take a look at what are the misconceptions about installing cell phone signal jammers in detention centers?
Misconception 1: The greater the output power, the better
1. The server frequency output is inaccurate. The frequency changes. The network bandwidth is too wide and the output power consumption affects the communication base station;
2. The simple frequency offset output power suppression method has low shielding efficiency and the radiation source is relatively large;
3. The power is falsely high. Exaggerated propaganda will cause the power to lose its value;
4. Output power is basic, technology is standby. Trying hard to output power is not as good as finding good methods and methods;
Misconception 2: Choosing directional antennas can prevent the impact
1. The directional antenna also has a certain transmitting and receiving sensitivity outside the fixed angle, which is just much lower than the main lobe and is not completely fixed;
2. Reflective buildings still have an impact on openness;
3. The change of server frequency seriously affects the communication base station and affects the opening to the outside world;
4. The impact of TD all-day shielding must exist.
Misconception 3: Machinery and equipment with high output power have large radiation sources, while machines with low output power have small radiation sources.
1. Choose a TV antenna with high power, which has a long distance and a large shielding area. The signal jammer is symmetrical and the radiation source is very small;
2. If the low-power equipment does not use multiple antennas to extend the shielding distance, but is placed centrally or has 5 antennas working together, its radiation intensity will exceed 10 microwatts/cubic centimeter, and the radiation intensity will exceed 10 microwatts/cubic centimeter. The source must seriously exceed the standard;
Sample Image Gallery
