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  2. Radio masts and towers - Wikipedia

    en.wikipedia.org/wiki/Radio_masts_and_towers

    In North America, for instance, there are transmitting antennas on the Empire State Building, the Willis Tower, Prudential Tower, 4 Times Square, and One World Trade Center. The North Tower of the original World Trade Center also had a 110-metre (360 ft) telecommunications antenna atop its roof, constructed in 1978–1979, and began ...

  3. Wireless Infrastructure Association - Wikipedia

    en.wikipedia.org/wiki/Wireless_Infrastructure...

    If two or more wireless providers share a cell tower, the state/local agencies must process the applications within 90 days. The agencies must process applications within 150 days for new cell towers. [31] Public safety: According to WIA, 70 percent of calls to 9-1-1 are made from wireless devices like cell phones and smart phones. [32]

  4. SBA Communications - Wikipedia

    en.wikipedia.org/wiki/SBA_Communications

    It leases antenna space to wireless service providers on towers that it owns or operates, [5] and manages rooftop and tower sites for property owners under various contractual arrangements. As of 2020, it owned 30,000 towers around North and South America. Its biggest market is Brazil where the company owns over 10,000 towers. [5]

  5. American Tower - Wikipedia

    en.wikipedia.org/wiki/American_Tower

    The merger further established American Tower's position as one of the largest tower owners and operators in North America. [7] Between 2007 and 2012, the company expanded internationally with operations in India, Peru, Chile, Colombia, South Africa, Ghana, and Uganda. [8] In 2013, the company acquired Global Tower Partners for $4.8 billion.

  6. Cellular repeater - Wikipedia

    en.wikipedia.org/wiki/Cellular_repeater

    A cellular repeater (also known as cell phone signal booster or cell phone signal amplifier) is a type of bi-directional amplifier used to improve cell phone reception. [citation needed] A cellular repeater system commonly consists of a donor antenna that receives and transmits signal from nearby cell towers, coaxial cables, a signal amplifier, and an indoor rebroadcast antenna.

  7. Category : Radio masts and towers in the United States

    en.wikipedia.org/wiki/Category:Radio_masts_and...

    Radio masts and towers support antennas (also known as aerials) for telecommunications and broadcasting, including television--in the United States. Wikimedia Commons has media related to Radio masts and towers in the United States .

  8. Category:Radio masts and towers - Wikipedia

    en.wikipedia.org/.../Category:Radio_masts_and_towers

    Radio masts and towers support antennas (also known as aerials) for telecommunications and broadcasting, including television. Subcategories This category has the following 4 subcategories, out of 4 total.

  9. Cellular network - Wikipedia

    en.wikipedia.org/wiki/Cellular_network

    Cell towers frequently use a directional signal to improve reception in higher-traffic areas. In the United States, the Federal Communications Commission (FCC) limits omnidirectional cell tower signals to 100 watts of power. If the tower has directional antennas, the FCC allows the cell operator to emit up to 500 watts of effective radiated ...