ELF (taajuusalue) (Finnish Wikipedia)

Analysis of information sources in references of the Wikipedia article "ELF (taajuusalue)" in Finnish language version.

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cdc.gov

doi.org

dx.doi.org

doi.org

is.fi

itu.int

jkorpela.fi

nasa.gov

lws-trt.gsfc.nasa.gov

  • [http://lws-trt.gsfc.nasa.gov/trt_liemohn05eos.pdf Unraveling the Causes of Radiation Belt Enhancements] EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION; Eos, Vol. 88, No. 42, 16 October 2007. Arkistoitu 27.5.2010. ”Waves in the extremely low frequency (ELF; 3 hertz to 3 kilohertz) and very low frequency (VLF; 3–30 kilohertz) ranges can also resonate with the relativistic electrons.” Viitattu 16.10.2021.

thedrive.com

timesofindia.com

m.timesofindia.com

urn.fi

vaporia.com

astro.vaporia.com

  • [http://astro.vaporia.com/start/subradio.html subradio (electromagnetic radiation, frequency below 3 kHz)] astro.vaporia.com. ”The term subradio is sometimes used for electromagnetic radiation (EMR) with frequencies below that of radio. The 'lower end of radio frequencies' is not universally agreed upon, and various frequency limits have been declared, such as 30 kHz, 3 kHz, and 3Hz, and some declare radio to extend to 0Hz.” Viitattu 12.10.2021.

vlf.it

web.archive.org

  • [http://lws-trt.gsfc.nasa.gov/trt_liemohn05eos.pdf Unraveling the Causes of Radiation Belt Enhancements] EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION; Eos, Vol. 88, No. 42, 16 October 2007. Arkistoitu 27.5.2010. ”Waves in the extremely low frequency (ELF; 3 hertz to 3 kilohertz) and very low frequency (VLF; 3–30 kilohertz) ranges can also resonate with the relativistic electrons.” Viitattu 16.10.2021.
  • Sukellusveneen viestipoiju välittää radiosanomia is.fi. Arkistoitu ”Pinnan alla kulkeva ja mahdollisesti hätään joutunut sukellusvene on kuuro ja mykkä ilman radioyhteyttä tukikohtaan. Tällöin sukellusvene voi lähettää pintaan viestipoijun, jossa on lähetin.” Viitattu 18.10.2021.