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  2. Cellular frequencies in the United States - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies_in...

    There are 51 MTAs, 493 BTAs and 175 EAs in the United States. The Advanced Wireless Services (AWS) bands, auctioned in the summer of 2006, were for 1,710–1,755 MHz, and 2,110–2,155 MHz. The spectrum was divided into blocks: A blocks were for Cellular Market Areas, based on existing cellular (1G) licenses, and were 2 × 10 MHz.

  3. Cellular frequencies - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies

    Cellular frequencies. Cellular frequencies are the sets of frequency ranges within the ultra high frequency band that have been assigned for cellular-compatible mobile devices, such as mobile phones, to connect to cellular networks. [1] Most mobile networks worldwide use portions of the radio frequency spectrum, allocated to the mobile service ...

  4. United States Cellular Corporation - Wikipedia

    en.wikipedia.org/wiki/United_States_Cellular...

    Website. uscellular.com. United States Cellular Corporation (doing business as UScellular and formerly known as U.S. Cellular) is an American mobile network operator. Its stock is publicly traded, but Telephone and Data Systems Inc. owns a controlling stake (83% economic and 96% voting power). The company was formed in 1983 and is headquartered ...

  5. Cellular network - Wikipedia

    en.wikipedia.org/wiki/Cellular_network

    t. e. A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless and the network is distributed over land areas called cells, each served by at least one fixed-location transceiver (such as a base station). These base stations provide the cell with the network coverage which can be used ...

  6. GSM frequency bands - Wikipedia

    en.wikipedia.org/wiki/GSM_frequency_bands

    In North America, GSM operates on the primary mobile communication bands 850 MHz and 1900 MHz. In Canada, GSM-1900 is the primary band used in urban areas with 850 as a backup, and GSM-850 being the primary rural band. In the United States, regulatory requirements determine which area can use which band. The term Cellular is sometimes used to ...

  7. The history of the American phone book - AOL

    www.aol.com/history-american-phone-book...

    As phone lines became more popular—between 1942 and 1962, the number of phones in the U.S. grew 230% to 76 million—telephone companies realized they would run out of phone numbers.

  8. 5G NR frequency bands - Wikipedia

    en.wikipedia.org/wiki/5G_NR_frequency_bands

    5G NR frequency bands. Frequency bands for 5G New Radio (5G NR), which is the air interface or radio access technology of the 5G mobile networks, are separated into two different frequency ranges. First there is Frequency Range 1 (FR1), [1] which includes sub-6 GHz frequency bands, some of which are traditionally used by previous standards, but ...

  9. Frequency-hopping spread spectrum - Wikipedia

    en.wikipedia.org/wiki/Frequency-hopping_spread...

    e. Frequency-hopping spread spectrum (FHSS) is a method of transmitting radio signals by rapidly changing the carrier frequency among many frequencies occupying a large spectral band. The changes are controlled by a code known to both transmitter and receiver. FHSS is used to avoid interference, to prevent eavesdropping, and to enable code ...