Jammer-buy sale more diy signal jammers jammer for prison and school.
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Now we know that many schools have installed cell phone jammer, they will be in some important open during the test, not open at ordinary times, whether schools should be allowed to use cell phone signal jammers?
I think the school should strictly install the phone jammer, so that students will spend more time on their homework, instead of using mobile phone social and mobile games. Because my child has recently become addicted to mobile games, I am afraid that he will gradually become addicted to mobile games and delay his homework.
Baliza Mar 19 '18 at 13:25
In many countries of the world, especially in economically developed countries, it is very importance to education, because only good people can provide countries with a steady stream of science and technology, will have more progress and breakthrough. So many countries schools have installed mobile phone jammer device, mainly in order to stop the students use mobile phone, and then abandoned their studies, it doesn't conform to the state of talent training policy, so the school use of cell phone jammers is tacit government got a lot of countries.
pekerliy Feb 26 '18 at 17:38
The school can install a mobile jammer, which must be allowed, because cheating on some major tests will undermine the fairness of the test. Installation using a cell phone jammer can only in the big exam, other time, the school should not use mobile phone jammer, as for the legal issues, and there is no clear that school are not allowed to use cell phone signal blocker, but also can't abuse of cell phone jammers, it just as a kind of protection tools, cannot use all the time, it can give a person a significant communication interference, mainly depends on the influence degree of the jammer. It is not illegal to use the test and the class.
jammer-buy Jan 12 '18 at 08:26
Transmission wide by radio interference equipment in mobile communication GSM900mHz and DCS1800mHz spectrum with radio frequency signal, blocked the mobile phone in a certain range of dial in and breathe out, disturb the order of the waves, seriously violated the legal communication free mobile phone users, must be in accordance with the law shall be stopped. The radio management agencies at all levels shall take decisive measures to stop the illegal development, production and use of radio wireless jammer devices and to protect the normal use of radio stations set up in accordance with the law.
leobrow Jan 9 '18 at 15:41
School's principle of shielding is designated band interference through the cell phone signal blocker, so as long as the modified cell phones accept transmitting frequency can prevent to be blocked, blockers can screen 900-1800 MHZ signal, and mobile phones accept transmitting frequency is 850-1900 MHZ shielding range greater than the shielding device, so as long as the mobile phone in the mobile phone set to accept transmitting frequency adjustment to maximum can normally receive the signal.The school test USES a cell phone signal to shield about 10 meters.Depending on the type of the mask. The range of the antenna is large, usually about 15 meters, but the wall is about two classrooms.
joykai Dec 31 '17 at 12:19
