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  2. Speedtest.net - Wikipedia

    en.wikipedia.org/wiki/Speedtest.net

    Internet speed test. License. Freeware. Website. www .speedtest .net. Speedtest.net, also known as Speedtest by Ookla, is a web service that provides free analysis of Internet access performance metrics, such as connection data rate and latency. It is the flagship product of Ookla, a web testing and network diagnostics company founded in 2006 ...

  3. Speed of light - Wikipedia

    en.wikipedia.org/wiki/Speed_of_Light

    v. t. e. The speed of light in vacuum, commonly denoted c, is a universal physical constant that is exactly equal to 299,792,458 metres per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour).

  4. Spectrometer - Wikipedia

    en.wikipedia.org/wiki/Spectrometer

    Spectrometer is a broad term often used to describe instruments that measure a continuous variable of a phenomenon where the spectral components are somehow mixed. In visible light a spectrometer can separate white light and measure individual narrow bands of color, called a spectrum. A mass spectrometer measures the spectrum of the masses of ...

  5. Charter Spectrum to increase local internet speeds - AOL

    www.aol.com/charter-spectrum-increase-local...

    Charter Spectrum said Tuesday it would double the download speed of its basic internet service in Mankato, North Mankato and surrounding areas at no extra charge to customers. Download speeds will ...

  6. DSLReports - Wikipedia

    en.wikipedia.org/wiki/DSLReports

    Screenshot of DSLReports as of December 22, 2015. DSLReports is a North American-oriented broadband information and review site based in New York City. [6] The site's main focus is on internet, phone, cable TV, fiber optics, and wireless services in the United States and Canada, as well as other countries (United Kingdom and Australia).

  7. Spread spectrum - Wikipedia

    en.wikipedia.org/wiki/Spread_spectrum

    v. t. e. In telecommunication, especially radio communication, spread spectrum are techniques by which a signal (e.g., an electrical, electromagnetic, or acoustic) generated with a particular bandwidth is deliberately spread in the frequency domain over a wider frequency band. Spread-spectrum techniques are used for the establishment of secure ...

  8. Spectrum analyzer - Wikipedia

    en.wikipedia.org/wiki/Spectrum_analyzer

    A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal that most common spectrum analyzers measure is electrical; however, spectral compositions of other signals, such ...

  9. Radio frequency - Wikipedia

    en.wikipedia.org/wiki/Radio_frequency

    Radio frequency. Radio frequency ( RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency [1] range from around 20 kHz to around 300 GHz. This is roughly between the upper limit of audio frequencies and the lower limit of infrared ...

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