Mobile phone signal jammers working principle articles

In today's society is no stranger to mobile phone jammers, use where it is very common, and we are the most familiar place is school, in the age of our students, we all suffered to our school open cell phone jammers prohibition on the use of mobile phones. In many places, have banned the use of mobile phones, because cell phones ringing and loudly call uncivilized behavior in People's Daily lives more and more, and cell phone jammers can stop this behavior, in schools, prisons, courts, the library began to install the equipment, then what kind of job they are based on the principle of mobile phone signal shielding?

We all know the role of cell phone jammer, here we will briefly introduce its principles, so you will understand some of the jammer precautions.

Before that, we talk about the principle of mobile phone (radio communication), as follows: in a certain frequency range, mobile phones and base stations are connected with each other through the radio waves with a certain baud rate and modulation to complete the data and sound transmission.

In view of the above communication principle, the jammers work at a certain speed from the low frequency of the forward channel to the high-end scan. The scanning speed can be generated in the mobile phone message to generate garbled interference,and the phone can not detect the normal data sent from the base station, so that it can not establish a connection with the base station. Mobile phone performance as no signal, no service system and so on. In short, it is like someone talk loudly so you can not hear what your friend said in the phone.Here the 'someone' means the signal jammer.

It's also the reason why the shielding effect is sometimes bad because the base station is relatively close, or the mobile phone signal is very strong.

In addition, please note that if the you use the small power jammer (such as handheld jammer) to interfere with the large power devices (such as high-power WIFI router, Bluetooth audio equipment, etc.),it will be poor or even can not work. Meanwhile between the jammer and the phone,there should not be something like metal or glass wall which can block the signal transmission.

If you want to know more,you can read some attentions about jammers.