subject: Do The Cell Phone Jammers Give Off Radiation [print this page] With the rapid development of the communication technology, the mobile communication technology has achieved great progress. Now the mobile phone has become the indispensable part in the daily life. However, it has effect in some special occasions like prison and detention house. In cosidering of the security, it's necessary to limit the people's wireless communication.
For the special requirment, there are many developing manufacturers of the cell phone Jammers. Just as its name implies, the signal jammer is used for block the communication of the mobile phone. The jammer will emit the electromagnetic wave at the same frequency of mobile communication signal. Then the mobile phone will be unable to recognize the interference wave and useful wave. The mobile phone can't build connections with the base station within a certain range. Of course, the jammer will emit the electromagnetic wave at work.
Just like the mobile phone, the mobile phone jammers will absolutely produce the radiation. The jammer shares the same principle with the mobile phone. It uses the same chip of the mobile phone. As it emits the electromagnetic signal, it will produce the radiation to people.
Will all the electromagnetic radiation in various strengths affect people's health? In fact, it's relative to the opening time of the jammer and the people's physical makeup. About the effects of the electromagnetic radiation, we should consider the intensity, direction and the distance. We know the radiation of mobile jammer is realized through the antena. So the antena will affect the quality of the whole blocking system.
There are express terms about the security level of the electromagnetic radiation in China. The regulations for electromagnetic radiation protection is approved by National Environmental Protection Agency on March 11, 1988 and carried out on June 1 of the same year. It provides the security level for the radiation to people. For the public, the average value of field intensity of the radiation at the frequnecy of 30-3000MHz should be within 0.4w/sqm for any six continuous minutes in a twenty-four hours day. The jammers produced by formal enterprises will be inspected by the related department.
Gernerally, the signal jammer used in the classroom and meeting room are low power models. And the installing places are stritly limited. They are usually installed in the classroom passage or on the wall behind the teacher desk. It will be 2-3 meters away from the people. The radiation risk has been limited in the safety range.
For the small room, under no circumstances should we introduce the high power mobile phone jammers whose coverage range is more than 50 meters. The high power jammer has the larger electromagnetic field intensity.
Should the radiation be the health risk to the people? It's not the exact case. We know the mobile phone, microwave oven and TV all give off radiation. But the radiation can be negleted in a certain range and time. It will not lead to irreparable damage to our body. That's why it's widely applied in the society and can never be given up.
