radio telephone system
21telephone — I (New American Roget s College Thesaurus) v. call [up], phone, dial, get through to. See communication. II (Roget s IV) n. Syn. phone, private phone, extension phone, radiophone, radio telephone, car phone, cellular phone, pay phone, public… …
22Radio telescope — A radio telescope is a form of directional radio antenna used in radio astronomy and in tracking and collecting data from satellites and space probes. In their astronomical role they differ from optical telescopes in that they operate in the… …
23Telephone numbers in Japan — +81 redirects here. see also +81 (Deerhoof) Country Code: 81Dialing prefixes 0 National area code prefix 00 Carrier selection prefix 010 International call prefix 184 Prefix to withhold caller ID 186 Prefix to provide caller IDTypes of numbers… …
24Radio Limerick One — Infobox Radio station name = Radio Limerick one slogan = Closer to you airdate = October, 1989 frequency = Formerly 105.0MHz area = Limerick / Munster format = Pop / Variety/ Chat owner = Gerard Madden website = [http://www.rlotv.com] |Radio… …
25Invention of the telephone — The modern telephone is the result of work done by many people, all worthy of recognition of their contributions to the field. Alexander Graham Bell was the first to patent the telephone, an apparatus for transmitting vocal or other sounds… …
26Radio Bemba Sound System — Album par Manu Chao et Radio Bemba Sortie 2002 Enregistrement 2001 Genre Rock Label Virgin Records …
27Radio astronomy — is a subfield of astronomy that studies celestial objects at radio frequencies. The field originated from the discovery that many astronomical objects emit radiation in the radio wavelengths as well as optical ones. The great advances in radio… …
28Radio 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.,… …
29Radio programming — is the content that is broadcast by radio stations. The original inventors of radio, such as Nikola Tesla and Guglielmo Marconi, expected it to be used for one on one communication tasks where telephones and telegraphs could not be used because… …
30telephone — ► NOUN 1) a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals. 2) an instrument used as part of such a system, typically including a handset with a transmitting microphone… …
