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During 1990s microwave radio links begun widely to be used for urban links in cellular network. Requirements regarding link distance changed to shorter hops (less than 10 km (6.2 mi), typically 3 to 5 km (1.9 to 3.1 mi)), and frequency increased to bands between 11 and 43 GHz and more recently, up to 86 GHz (E-band).
Commercial implementations are in the 2.3 GHz, 2.5 GHz, 3.5 GHz and 5.8 GHz ranges. Mobile Broadband Wireless Access (MBWA) protocols based on standards specifications such as IEEE 802.20 or ATIS/ANSI HC-SDMA (such as iBurst ) operate between 1.6 and 2.3 GHz to give mobility and in-building penetration characteristics similar to mobile phones ...
A microwave oven or simply microwave is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. [1] This induces polar molecules in the food to rotate and produce thermal energy (heat) in a process known as dielectric heating .
In 1947, just a year after Spencer’s snack food serendipity, the first commercial microwave oven hit the market. Called the “Radarange,” it weighed nearly 750 pounds and cost more than $2,000 .
In 2012, YouTube's Rewind videos changed to featuring several popular YouTubers; the most popular music videos, and videos; breaking news; and internet memes from the year. Rewind YouTube Style 2012, referencing Psy's "Gangnam Style", was released on December 17, 2012. [12] It was created and produced by YouTube and Seedwell. [3]
You won’t have to worry about “forever chemicals” in your food packaging for much longer. According to a new statement from the Food and Drug Administration, products with perfluoroalkyl and ...
The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos. ... Photos Taken During Rare Outing Nearly 1 Year ...