sporadic-E layer
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sporadic E layer — noun Date: 1949 a layer of ionization occurring irregularly within the E region of the ionosphere … New Collegiate Dictionary
sporadic e layer — noun Usage: usually capitalized E : a layer of ionization occurring irregularly within the E region of the ionosphere at heights of approximately 60 miles above the surface of the earth and occasionally being capable of reflecting radio waves of… … Useful english dictionary
sporadic E — sporadic E, an area of high ionization in the E layer of the ionosphere which interferes with the normal reflection of short wave radio … Useful english dictionary
TV and FM DX — TV DX and FM DX is the active search for distant radio or television stations received during unusual atmospheric conditions. The term DX is an old telegraphic term meaning long distance. VHF/UHF television and radio signals are normally limited… … Wikipedia
Ionosphere — The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner … Wikipedia
telecommunications media — Introduction equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation Every… … Universalium
E region — noun a region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length • Syn: ↑Heaviside layer, ↑Kennelly Heaviside layer, ↑E layer • Instance Hypernyms: ↑region, ↑part • Part Holonyms: ↑ … Useful english dictionary
уровень (иерархии) — В архитектуре системы совокупность правил и протоколов, относящихся к одному типу обмена информацией. Модель OSI определяет 7 уровней иерархии протоколов взаимодействия систем. См. application , D layer, E layer, F tayer, link , network ,… … Справочник технического переводчика
E region — noun Date: 1930 the part of the ionosphere occurring between about 55 and 80 miles (90 and 130 kilometers) above the surface of the earth and containing the daytime E layer and the sporadic E layer … New Collegiate Dictionary
FM Okinawa — (エフエム沖縄) Co., Ltd. is the broadcasting station which assumes main island of Okinawa of Okinawa a broadcast area for. A series of JFN.A summaryCatch phrase「いつも心は南向き～Southern Station FM OKINAWA」.It was a medium frequency (AM) broadcasting station… … Wikipedia
Radio propagation — is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. [ H. P. Westman et al, (ed), Reference Data for Radio Engineers, Fifth Edition , 1968, Howard W. Sams and Co.,… … Wikipedia
