Why the GSM 925-960 MHz cell phone jammers so popular?

Posted on 28th Aug 2013 @ 10:22 AM

GSM, short for Global System for Mobile Communications, is one of the leading digital cellular systems. GSM uses narrowband TDMA, which allows eight simultaneous calls on the same radio frequency. GSM is a standard set developed by the European Telecommunications Standards Institute (ETSI) to describe protocols for second generation (2G) digital cellular networks used by mobile phones. GSM supports voice calls and data transfer speeds of up to 9.6 kbps, together with the transmission of SMS. GSM was first introduced in 1991. As of the end of 1997, GSM service is available all around the world which has became the leading global standard for mobile communications with over 80% market share. The wide popularity of GSM accelerates the appearance of GSM 925-960 MHz cell phone jammers.

The GSM 925-960 MHz cell phone jammers have always been the most popular type among all cell phone signal jammers. That may owe to the wide use of GSM. GSM operates in the 900MHz and 1.8GHz bands in Europe and the 1.9GHz and 850MHz bands in the US. GSM services are also transmitted via 850MHz spectrum in Australia, Canada and many Latin American countries. The use of harmonized spectrum across most of the globe, combined with GSM’s international roaming capability, allows travelers to access the same mobile services at home and abroad. GSM enables individuals to be reached via the same mobile number in more than 200 countries.

About the latest design GSM 925-960 MHz cell phone signal jammers, Jammerall has pushed out several newly developed cell phone jammers. Those phone jammers can be applied in different places for different purposes. The featured one is 4 Antenna Cell Phone Signal Blocker with Remote Control. It can block CDMA, GSM, DCS/PCS and 3G bands in a shielding range of 40 meters. With AC adapter, it can work continuously. Moreover, users can easily turn on or turn off the jammer with the remote control. The external Omni-directional antennas can cover down link of all the TX frequency without making any interference of the base stations. Besides, we have the 15W 6 Antenna Mobile Phone GPS Wi-Fi Jammer. Equipped with six Omni-directional antennas, it owns the ability of cut off the signals of GSM 925-960MHz, DCS 1805-1880MHz, PHS 1930-1990MHz, 3G 2110-2170MHz, GPS 1575MHz, and WIFI 2.4G. Besides owning strong jamming capability, its jamming range can reach up to 40 meters at most. The main features of the cell phone signal jammers that Jammerall launched this year is capable and effective. They can perfectly meet all your personal requirements. If you are also in need of GSM 925-960 MHz cell phone signal jammers, you can get more information here. Numerous cell phone jammers are here waiting for you.