radio-relay antenna

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• Microwave radio relay — is a technology for transmitting digital and analog signals, such as long distance telephone calls and the relay of television programs to transmitters, between two locations on a line of sight radio path. In microwave radio relay, radio waves… …   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

• Radio repeater — A radio repeater is a combination of a radio receiver and a radio transmitter that receives a weak or low level signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. This… …   Wikipedia

• Radio-amateur — Radioamateur Pour les articles homonymes, voir Radio. Le shack ou station d un opérateur radioamateur …   Wikipédia en Français

• Radio-amateurisme — Radioamateur Pour les articles homonymes, voir Radio. Le shack ou station d un opérateur radioamateur …   Wikipédia en Français

• Radio amateur — Radioamateur Pour les articles homonymes, voir Radio. Le shack ou station d un opérateur radioamateur …   Wikipédia en Français

• Antenna analyzer — An antenna analyzer measuring SWR and complex impedance of a dummy load. MFJ Enterprises Inc. MFJ 269. An antenna analyzer (also known as a noise bridge, RX bridge, SWR analyzer, or RF analyzer) is a device used for measuring the efficiency of… …   Wikipedia

• Radio Society of Great Britain — infobox Organization name = Radio Society of Great Britain image border = size = 63px caption = msize = 200px mcaption = Lambda House, the RSGB headquarters in Potters Bar prior to their move to Bedford in April 2008 abbreviation = RSGB motto =… …   Wikipedia

• Radio Caroline — is a European radio station that started transmissions on Easter Sunday 1964 from a ship anchored in international waters off the coast of Felixstowe, Suffolk, England. [ [http://www.radiocaroline.co.uk/history2.asp Don t Get Mad, Get Even] ] It… …   Wikipedia

• Radio France Internationale — (RFI) was created in 1975 as part of Radio France by the Government of France to serve as a broadcast vehicle for French Equatorial Africa. In 1986 a new law passed by the French Parliament allowed RFI to operate independently of Radio France.RFI …   Wikipedia

• Radio Netherlands Worldwide — (RNW, short for Radio Nederland Wereldomroep in Dutch) is a public radio and television network based in Hilversum, producing and transmitting programmes for international audiences outside the Netherlands. Radio Netherlands Worldwide has also… …   Wikipedia