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The antennas contained in mobile phones, including smartphones, emit radiofrequency (RF) radiation (non-ionizing "radio waves" such as microwaves); the parts of the head or body nearest to the antenna can absorb this energy and convert it to heat or to synchronised molecular vibrations (the term 'heat', properly applies only to disordered molecular motion).
Multichannel multipoint distribution service (MMDS), formerly known as broadband radio service (BRS) and also known as wireless cable, is a wireless telecommunications technology, used for general-purpose broadband networking or, more commonly, as an alternative method of cable television programming reception.
A distributed antenna system (DAS) is a network of spatially separated antenna nodes connected to a common source via a transport medium that provides wireless service within a geographic area or structure. DAS antenna elevations are generally at or below the clutter level, and node installations are compact. A distributed antenna system may be ...
Last year, consumers filed 1.1 million complaints with the Better Business Bureau (BBB) against North American businesses, a 10% increase over 2009. "The complaints filed with BBB are not only a ...
Consumer Reports has helped start several consumer groups and publications, in 1960 helping create global consumer group Consumers International and in 1974 providing financial assistance to Consumers' Checkbook which is considered akin to Consumer Reports for local services in the seven metropolitan areas they serve.
Long-range Wi-Fi is used for low-cost, unregulated point-to-point computer network connections, as an alternative to other fixed wireless, cellular networks or satellite Internet access. Wi-Fi networks have a range that's limited by the frequency, transmission power, antenna type, the location they're used in, and the environment. [1]
With the dominance of streamers such as Hulu, Disney+ and Max, many people have dumped their expensive cable and satellite TV subscriptions. But for live sports and events (like the Summer 2024 ...
These phones share the 49.8 MHz band (49.830 - 49.890) with some wireless baby monitors. 900 MHz cordless phones are rarely sold but have a huge installed base. Features include even shorter antennas, up to 30 auto selecting channels, and higher resistance to interference.
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