单词	gigahertz
释义	gigahertz noun giga·​hertz ˈji-gə-ˌhərts  -ˌherts, ˈgi-  plural gigahertz : a unit of frequency equal to one billion hertz Example Sentences Recent Examples on the Web Wi-Fi receivers typically transmit at about a five gigahertz frequency. Gary Fowler, Forbes, 17 Mar. 2021 But keep in mind that in most cases, 5G won't exceed 100 gigahertz in frequency, a far cry from the harmful radiation, which is measured in exahertz (a unit of frequency equal to 1018 Hertz). Courtney Linder, Popular Mechanics, 27 Oct. 2020 Midband uses frequencies from 2.5 gigahertz to 4.2 GHz with peak speeds of 1 gigabit per second. Dallas News, 5 Mar. 2020 That does indeed sound dated compared to the current crop of hypercars, which boast megawatts of hybrid or electric power and gigahertz of processing power to tame it all. Jonathan M. Gitlin, Ars Technica, 20 Dec. 2019 The concerns center around the impacts of 5G use of a nearby band, 24.25 to 24.45 gigahertz, and whether those transmissions could bleed over to disrupt the weather equipment. Hal Bernton, The Seattle Times, 6 Aug. 2019 Instead, the team opted for maximum sensitivity and designed their detectors to receive a single frequency: 150 gigahertz. Quanta Magazine, 21 Sep. 2014 Other wireless industry experts cite opportunities above 3.5 gigahertz, where several other countries have marked frequencies for 5G use. Sarah Krouse, WSJ, 20 June 2019 That band — 24 gigahertz — sits right next to one that federal scientists use to detect water vapor emissions in the atmosphere. Susanne Rust, latimes.com, 20 June 2019 See More Word History First Known Use 1964, in the meaning defined above
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