China – The Cell phone jammer is very commonly in our daily life. It could be used for the various types of areas such as examination, schools, gas stations, churches, courts, library, conference center, theaters, hospitals, government, finance, prisons, police, military areas and other places where prohibit the using for mobile phones. However, the Mobile phone jammer has its special function in people¡¯s daily life. Somebody would not have more understanding for the single jammers such as 4g cell phone jammer and Cellular jammer. Now, the China manufacturer for Cell phone jammer which website is www.jammerbuy.com would introduce with the information about it.
It is understood that the 4g cell phone jammer in today¡¯s market could limit the cell phone signal which is can 500M meters far away from the launch pad and the mare than the 20 meter radius. On the other hand, the shielding radius of the Mobile phone jammer is adjustable. This kind of equipments would only have function with the mobile phone signals without the impact on other electronic devices. The energy saving is another advantage for this equipment and the power is only form 20W to 480w.
The working of mobile phone is in a certain frequency range. The radio waves could let the cell phone and the single base station be coupled together by a certain baud rate and modulation method and then it could finish the data and voice transmission. In response to this kind of communication theory, cell phone jammers would scan from the front channel low- frequency to high-end with a certain speed in the course of their work. The scanning speed can result in the single interference for the receive message on mobile phone and then the phone cannot detect the normal data which has been sent from the base station. In that case, the phone cannot establish the connection with the base station. The cell phone would be no signal, no service systems and so on.
The operation frequency of the commonly car jammer and cell phone jammer in the market could be 869 to 894MHz, 825 to 960MHz, 1805 to 1880MHz and 1900 to 1990MHz and so on. The effecting range of this equipment is the band such as CDMA800, GSM900, DCS1800, PCS1900, WCDMA and so on. On the other hand, this equipment has applied the DC-DC converter input voltage and 5V output voltage. The most important factor is the controlling range which is about 40 meters in diameter.
All of this knowledge which has been listed before is all original from website jammerbuy.com which is the best manufacturer and seller for cell phone jammer.
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