Is the jammer radiation problem really as big as the rumors?
In order to prevent students from using cell phones, schools often use signal jammer to cheat. For security and management reasons, prisons can also use powerful jammers to bar inmates from communicating with the outside world and reduce threats to the prison. If used correctly, mobile jammers are definitely an advantage. Regardless of the environment, those who have been on the phone may be able to remain silent. The interference transmits high power signals at the same frequency as the mobile phone, causing the two signals to collide and cancel them out. This is the basic operating principle of any jammer. Simple devices block only one set of frequencies. High-end equipment can block all frequencies at the same time. Cell phones are full duplex devices, which means they use two different frequencies. One listens, the other speaks. Some basic jammers can only block one of these frequencies. Advanced jammers interfere not only with all cell phone signals, but also with many other signals. It also has a unique frequency switch, which can be selected according to your needs.
These are some of the questions we collected a few days ago. More importantly, can smart phones be protected from cell phone jammers? Many customers say they no longer want to use their phone in certain environments and are concerned about this risk because powerful smartphones cannot be turned off. It is completely unnecessary. Mobile intelligence does not mean that only the frequency band of the signal can be used. Only in terms of hardware and software, the functions of the machine are more diverse, but the frequency band of the communication network still in use is the same as the frequency band of the signal. Other cell phones. The answer is yes. If you do not use this kind of signal spectrum, the smartphone uses a common signal frequency and will not cause interference to the phone. However, such technology does not seem to exist.
In addition, the fact that students use their cell phones in class interferes with the normal education system, which is beyond their rights and should be restricted. Mobile jammers have been widely used in schools, but Internet users have different opinions. Some Internet users are concerned about "radiation health", and some Internet users find it useful to address the phenomenon of students using cell phones in the classroom. The school said the measure is necessary to avoid the use of cellphones in the classroom and reduce learning disabilities. The radiation is much lower than that of cell phones and does not affect health.
