How to choose a satisfactory 5g mobile phone signal jammer?
In order to reasonably avoid and interfere with mobile phone related signals, such as GPS, WIFI, 2G, 3G, 4G, 5G, the mobile phone signal jammer is generated. It is mainly used in school examination rooms, prisons, detention centers, etc. In order to ensure fairness and impartiality of examinations, high school entrance examinations, college entrance examinations, or usual mock examinations. So how should you choose a cell phone signal jammer?
1. Shop around to choose products, conduct extensive research and learn more about:
1. Conduct research on product quality, technical parameters, and brands, and select regular manufacturers that have company business licenses, trademark certification, and products that are certified by the Police Electronic Testing Center of the Ministry of Public Security (can be found online) and radiation testing certification;
2. Through the network search, get a preliminary understanding of the technical parameters of the product and communicate with the technicians, listen to the technical explanation, and carefully ask how many frequency bands are output, whether the single-channel output has enough power and a few watts of output to avoid false labeling. The same 8-band shell There are only 4 or 5 segments to deceive consumers, the same 8 segments use 1W low-power chips, the frequency is not square, and there are defective mobile phone signal jammers such as clutter.
2. On-site test demonstration to see the effect:
Select the best products for comparative testing, on-site inspection and shielding effect demonstration, test the shielding effect distance at the same location, etc.;
3. Check the actual effect of the case:
1. After the demonstration of the product, you can examine the application, operation status and actual effect of the product in other similar projects;
2. During the inspection, it is better to bring the mobile phone into the shielded area after approval to verify the shielding effect.
4. Simple and quick way of judging equipment:
Equipment that can be considered
1. The area that should be shielded is not strictly shielded, and it costs money and effort to be ineffective;
2. The area that should not be shielded is seriously disturbed, complained and cannot be used normally;
3. There is a gap between too biased belief detection and pseudo base station technology, ideal and reality. At present, there is no real successful case in China;
Equipment that should not be used
1. The volume is small, the host and power supply are separated, and a circuit board is used inside, and there are no products and no products tested;
2. It needs to be equipped with a protective box, which is small in size and light in weight;
3. The natural heat dissipation area is small or a fan is used to help heat dissipation;
4. There are many air circulation inside and outside the equipment, and the inside is easy to corrode;
5. The single-channel output power of the equipment is low, the frequency is not square, and the effect is poor, and the screen is intermittently shielded.
