mobilephonejammer-usa ? cell phone jammer might have some ...

WCDMA is the abbreviation of the WidebandCodeDivisionMultipleAccess. This is a third-generation wireless communication (3G) standard, can provide sufficient bandwidth, wireless multimedia applications become possible. DAMPS full name DigitalAMPS, which AMPS is an advanced mobile phone technology, the technology for analog cellular systems, the use of 800MHz spectrum, dominant in the United States. Correspondingly, DigitalAMPS represent the digital advanced mobile phone system. This digital network solution based on IS-136 digital standard. 900/1800MHz spectrum. The CMTS represent is CellularMobileTelephoneSystem Chinese meaning ? cellular mobile telephone system. Every region of the system consists of a base station coverage. An area called a cell. If the customer wanna reduce the influence of cell phone jammer on the external environment.
Cell telephone communication via the base station. If the telephone to enter another cell, the call is automatically transferred to a new cell within the base station. UMTS represents the UniversalMobileTelecommunicationsSystem, Chinese is the meaning of the Universal Mobile Telecommunications System, especially the next generation of cellular technology. Group of companies protected by the European Telecommunications Standards Institute is currently developing its standards. NMT450/NMT900NMT is NordicMobileTelephoneSystem abbreviation, especially the Nordic Mobile Telephone system technology. It is set up according to the Nordic standard analog mobile phone system, the spectral range of 450 and 900MHz. The directional antenna can be selected for cell phone jammer .
PDC full name in English is PersonalDigitalCellular, on behalf of the Personal Digital Cellular Phone. Cellular mobile telephone system in accordance with the standards established by the Day *, the frequency range of 800 and 1500MHz. GSM full name: Global System for Mobile Communications, the Chinese for the Global System for Mobile Communications, commonly known as ?Global?, developed by the European digital mobile telephone network standards, the development around the world to use a mobile phone network standards. allow users to use a cell phone can be marketed around the world. GSM system, including a few bands of the GSM 900:900 MHz, GSM1800: 1800MHz and GSM-1900, 1900MHz and so on. The directional antenna of cell phone jammer should point to the direction to be shielded.
The GSM system has several important features: burglar beat good capacity, network capacity, resource-rich mobile phone number, call clarity, strong stability and less susceptible to interference, sensitive information, call dead ends, low power consumption mobile phone. The two major GSM system in the world for the GSM 900 and GSM1800, due to the different frequencies, applicable to mobile phones are not the same. Earlier time of development of the former use more countries, the latter late development, the use of fewer countries. Physical characteristics, the former spectrum, lower, longer wavelength, poor penetration, but the transmission distance, the mobile transmit power is strong, large power consumption, so standby time is shorter. Then, the specific area will be jammed by? cell phone jammers .

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