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  2. Mobile phone signal - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_signal

    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.

  3. Signal strength in telecommunications - Wikipedia

    en.wikipedia.org/wiki/Signal_strength_in...

    Weak signal strength can also be caused by destructive interference of the signals from local towers in urban areas, or by the construction materials used in some buildings causing significant attenuation of signal strength. Large buildings such as warehouses, hospitals and factories often have no usable signal further than a few metres from ...

  4. Cellular network - Wikipedia

    en.wikipedia.org/wiki/Cellular_network

    The most common example of a cellular network is a mobile phone (cell phone) network. A mobile phone is a portable telephone which receives or makes calls through a cell site (base station) or transmitting tower. Radio waves are used to transfer signals to and from the cell phone.

  5. The Best Cell Phone Signal Boosters for Staying Connected - AOL

    www.aol.com/lifestyle/best-cell-phone-signal...

    Eliminate dead zones with these devices that work at home and on the go.

  6. Stingray phone tracker - Wikipedia

    en.wikipedia.org/wiki/Stingray_phone_tracker

    When the signal strength is determined from enough locations, the computer system centralizes the phone and is able to find it. Cell phones are programmed to constantly search for the strongest signal emitted from cell phone towers in the area. Over the course of the day, most cell phones connect and reconnect to multiple towers in an attempt ...

  7. Comparison of mobile phone standards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_mobile_phone...

    This causes an added signal noise forcing all users to use more power, which in exchange decreases cell range and battery life. Orthogonal frequency-division multiple access (OFDMA) uses bundling of multiple small frequency bands that are orthogonal to one another to provide for separation of users.

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