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  2. Cellular frequencies in the United States - Wikipedia

    The 1850–1990 MHz PCS band is divided into six frequency blocks (A through F). Each block is between 10 MHz and 30 MHz in bandwidth. License (A or B) is granted for Major Trading Areas (MTAs). License (C to F) is granted for Basic Trading Areas (BTAs). License (G), where issued, is granted for Economic Areas (EAs).

  3. Cellular frequencies - Wikipedia

    And, some NMT-450 analog networks have been replaced with digital networks using the same frequency. In Russia and some other countries, local carriers received licenses for 450 MHz frequency to provide CDMA mobile coverage area. Many GSM tri-band and quad-band phones, or world phones; with such a phone one can travel internationally and use ...

  4. List of United States wireless communications service providers

    While the top 3 wireless providers operate nationwide wireless networks which cover most of the population in the United States, U.S. Cellular and other smaller carriers provide native network coverage across selected regions of the United States while supplementing nationwide coverage through roaming agreements with other carriers.

  5. Coverage (telecommunication) - Wikipedia

    A coverage noticer is a device that beeps (or vibrates) when in a zone that lacks coverage ( white spot ). This is fundamental for critical services (security, emergency and so on). When the user goes to a covered area, the noticer ceases beeping.

  6. Mobile phone signal - Wikipedia

    A mobile phone signal (also known as reception and service) is the signal strength (measured in dBm) received by a mobile phone from a cellular network (on the downlink ). Depending on various factors, such as proximity to a tower, any obstructions such as buildings or trees, etc. this signal strength will vary.

  7. Cellular network - Wikipedia

    Cellular network. A cellular network or mobile network is a communication network where the link to and from end nodes is wireless. The network is distributed over land areas called "cells", each served by at least one fixed-location transceiver (typically three cell sites or base transceiver stations ). These base stations provide the cell ...

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