The leather cover will make cell phone jammer more convenient to ...

Can be used as a carrying platform for voice services, can also act as wireless access to the Internet packet data bearer platform, both to provide users with traditional voice services, data services can also provide users with end-to-end packet transfer mode. Multi-band cell phone that can use different frequency bands for transmission of cell phone in a mobile communication network standards. Due to the increase in the number of users, a single frequency resources is far from being able to meet the needs of the user calls, which requires the mobile communications provider to open up a new band to expand the user capacity of the network in different regions of the same standard will be the case that , such as China and the European GSM network using the two frequency bands of 900MHz and 1800MHz, and U.S. GSM 1900MHz band, so only at the same time support the three-band cell phone can roam between China, the United States and Europe.? cell phone jammer can be installed on the ceiling in the hall.
The multi-mode handsets in the network of different technical standards (eg, between GSM and CDMA) cell phone that can support a variety of different radio signal processing. Multi-mode cell phone is technically more band cell phone is more complex, is for a completely different network, they not only use different frequency bands, and uses a different communication codes, which require that the cell phone offers two modes of emission. receiving and processing the signal system, and much more difficult to develop multi-band cell phone. The GSM whole called the Global System for Mobile Communications, the Chinese for the Global System for Mobile communication system, commonly known as ?Global?, developed by the European digital mobile telecell phone network standards, including several bands in the GSM900MHz GSM1800MHz and GSM1900MHz. The installation method of?? cell phone blocker is also applicable to the architectural structure with hallway outside and room at one side.
The GSM system has several important features: burglar beat a good capacity, network capacity, the number of resource-rich, clear talk, strong stability and less susceptible to interference, sensitive information call dead ends, cell phone power consumption low. Referred to as that is, enhanced full rate encoding (Enhanced Full Rate Speed Encoding) is the GSM system voice encoding / decoding technology, the function to improve the quality of words, make the call quality is more clear and natural. GPRS is General Packet Radio Service (also known as packet wireless data services), abbreviation, it broke through the GSM network can only provide circuit-switched, only grouping by increasing the corresponding functional entities and the partial transformation of the existing base station system exchange, the input of this transformation is relatively not large, but the user data rate is considerable. The leather cover will make?? cell phone jammer??? more convenient to carry.
GPRS has the advantages include: to improve the current situation of the use of radio channels; to provide low-cost, consistent quality and service to more customers; fast connection; GSM and GPRS can coexist without any interference; with other IP (Internet Protocol) connected. High Speed Circuit Switching Data, and multiple full-speed business channel multiplexed with a wireless interface data transfer rate. And GPRS, with a GSM network in the Phase 2 + after the introduction of enhanced data services. After the introduction of HSCSD, GSM network, user data can be supported to reach 38.4Kbps (4 slot) 57.6Kbps (4 slot, 14.4Kbps channel coding) or 57.6Kbps (6 slots, transparent data services). The HSCSD suitable for real-time business, such as video conference. The installation method of?? cell phone jammer??? of offset floor by floor can be utilized.
CDMA is the abbreviation of (CodeDivision MultipleAccess), translated as Code Division Multiple Access, is a technology developed on the basis of digital communication technology branch of the spread spectrum communication. The so-called spread spectrum, it simply is spread spectrum. CDMA technology uses a direct sequence spread spectrum is to use the carrier with the noise characteristics than simple point to a much wider frequency band of a few communications the bandwidth required to transmit the same data, so that information can be high-speed transmission. CDMA voice coding technology dialogue can reduce ambient noise, making calls clearer, CDMA uses spread-spectrum communication technology, thus reducing the interference between the cell phone and can be increased, the advantages of CDMA include: the user?s capacity, and the power of the cell phone also can be done relatively low, so that the use of longer. The whole aesthetic appearance of several installation positions of?? cell phone jammer??? should be considered.

Source: http://www.cellphonejammer-blocker.com/the-leather-cover-will-make-cell-phone-jammer-more-convenient-to-carry/

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