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Signal Jammer Frequenies for United States

14.09.2017
Signal Jammer Frequenies for United States

The main frequency bands used in the United States   of America in communications are GSM850, GSM1900, 3G (850/1900 and   1700/2100) and 4G (Verizon USA 4G, Sprint Clearwire WiMAX and T-Mobile   4G). For you to better understand what frequencies are used by what   standard here is some data for you:

 

  • 700MHz – this band is used with 3G and 4G technologies and   698-806MHz frequencies. It is planned to be used for GSM frequency in   the future as well

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  • GSM800 – not exactly a GSM but SMR iDEN technology that uses   806-824MHz and 851-869MHz frequencies. Though soon it may also be used   for CDMA

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  • GSM850 – main cellular band in USA used with GSM, CDMA and 3G technologies. Uses 824-849MHz and 869-894MHz frequencies

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  • GSM1900, or PCS – secondary cellular band in USA used with the same   GSM, CDMA and 3G technologies but with 1850–1910MHz and 1930–1990MHz   frequencies

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  • AWS – used for 3G and 4G technologies on 1710–1755MHz and 2110–2155MHz frequencies

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  • BRS/EBS – used for 4G technology with 2496–2690MHz frequencies

 

Although the main frequency band that was used in USA in the first  place was 800MHz (AMPS), it is now replaced with GSM850 as the new   primary cell phone call band. Now let’s look at each of those frequency  bands more closely.

 

700MHz

 

This frequency band is relatively new and there is not much to tell   about it. In the past years it was used for TV channels streaming but   with the evolvement of digital TV this frequency band was released and   auctioned in 2008. The 700MHz band was separated into five blocks of   frequency ranges. Most of the licenses from those blocks (A, B, C, D, E)   were sold to mobile phone operators like Verizon Wireless, U.S.  Cellular, Cavalier Telephone, CenturyTel, Qualcomm and AT&T   Mobility. The smaller part was sold to radio and television broadcasters   Triad Broadcasting, Small Ventures USA L.P. and EchoStar. The 700MHz  block D was sold to no one and still remains free.

 

GSM800

 

As it was mentioned earlier, this band is used for SMR iDEN   technology. SMR is a Specialized Mobile Radio that was created when the  FCC began to grant business with commercial 800MHz two-way radios in the   late 1970s. SMR systems are used by many companies like construction,   towing or taxi. It is a radio systems which allow dispatch to talk with   the group of people at the same time, but not too many (as a rule, up to   five simultaneously). To improve this system, iDEN technology was   invented. It allows increase the number of people taking part in SMR   two-way conversations. In the nearest future mobile phone service   operators are planning to add CDMA technologies to this SMR iDEN   cocktail and use the band for cellular communications.

 

GSM850

 

It is also called W-CDMA850 or CLR, and sometimes even confused with   GSM800 band because there was an AMPS frequency band that used this   frequency spectrum and it was called 800MHz band, though now 800MHz and   850MHz bands are separated. GSM850 is the main frequency band used by   most of US mobile communication service providers. In addition, modern   CDMA and 3G technologies are also use part of this frequency spectrum   for their work.

 

GSM1900

 

Also called PCS (Personal Communications Service), this frequency   band is the second most commonly used in United States for mobile   communications. It has exactly the same usage as GSM850 only it was not  used for the early communication technologies. It uses TDMA technology   like GSM does; only GSM uses frequency hopping and wideband transmission   to improve the interference resistance. It is also worth to mention   that PCS is the name for GSM1900 band for the whole world except for the   Hong Kong where PCS is the name for GSM1800 band.

 

AWS

 

This frequency band is used for 3G and 4G connections. 3G   technologies are used in mobile phones and mobile communications,   wireless voice calls, mobile internet, mobile TV, video calls and so on.   4G technologies are used in ultra-broadband mobile internet access,   smartphones, laptops with wireless USB internet modems, tablets and   other modern gadgets. In addition many modern electronic entertainment   features are also rely on 4G – mobile gaming, IP telephony, mobile HD   TV, video conferences, 3D TV, etc. Still the name AWS is not popular and   we used to say 3G or 4G.

 

BRS/EBS

 

It is also not a popular abbreviation to see or hear. BRS is commonly   known as MMDS band. It is used primarily for television transmitting   and broadband networking with the help of 4G technologies which allow   rural citizens to get access to the wireless internet in places where   cable, DSL and satellite internet is either unavailable or too   expensive. Yet mobile phone companies plan to use part of BRS band for   telecommunication purposes. EBS was an Emergency Broadcast System until   1997 when it was replaced by EAS (Emergency Alert System). It is used   for emergency messages from the President of the United States,   statewide and local emergency information for the citizens and any   important national news, though neither EBS nor EAS were ever used.

 

Bottom Line

 

United States use six main frequency bands for telecommunications,  mobile communications and internet access (700MHz, GSM800, GSM850,   GSM1900, AWS and BRS/EBS). Those frequency spectrums are used by many   national telecommunication companies, mobile phone service providers and   wireless internet access providers under different licenses to grant  people the services they need.