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2. Sector antenna - Wikipedia

   en.wikipedia.org/wiki/Sector_antenna

   Typical GSM sector antenna outdoor unit. A sector antenna is a type of directional microwave antenna with a sector-shaped radiation pattern.The word "sector" is used in the geometric sense; some portion of the circumference of a circle measured in degrees of arc. 60°, 90° and 120° designs are typical, often with a few degrees 'extra' to ensure overlap and mounted in multiples when wider or ...

3. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   Combined with a signal increase of 14 dB due to height and 11 dB due to lack of attenuating building walls, an outdoor antenna can result in a signal strength increase of up to 40 dB at the TV receiver. [6] Outdoor antenna designs are often based on the Yagi–Uda antenna [16] or log-periodic dipole array (LPDA). [17]

4. Andrew Corporation - Wikipedia

   en.wikipedia.org/wiki/Andrew_Corporation

   During the mid-20th century, Andrew Corporation became a leading producer of coaxial cables, [24] a crucial component for transmitting high-frequency signals in telecommunications and cable TV systems. At one point, Andrew Corporation was the principal engineer for Chicago's WBKB TV station, [25] which would later become Chicago's CBS affiliate ...

5. Distributed antenna system - Wikipedia

   en.wikipedia.org/wiki/Distributed_antenna_system

   All high-rise buildings in New York must have a dedicated wireless two-way communications system for fire department use. This system is called FDNY Auxiliary Radio Communication System (commonly Referred to as ARCS). [9] Such systems are required under Section 907.2.13.2 of the New York City 2014 Building Code.

6. Wireless speaker - Wikipedia

   en.wikipedia.org/wiki/Wireless_speaker

   A portable speaker which marks the lower end of the size range of Bluetooth speakers constructed primarily for the reproduction of music. Wireless speakers use rechargeable batteries to power them. Almost all wireless speakers operate on rechargeable batteries that are not replaceable, so that the lifespan of these speakers is that of their ...

7. Las Vegas police looking for links between Cybertruck blast ...

   www.aol.com/police-investigating-vehicle...

   The sheriff said Tesla CEO Elon Musk helped the investigation by having the truck unlocked after it auto-locked in the blast and giving investigators video of the suspect at charging stations ...