Define radios. radios synonyms, radios pronunciation, radios translation, English dictionary definition of radios. ) n. pl. ra·di·os 1. Electromagnetic radiation with lower frequencies and longer wavelengths than those of microwaves, having frequencies
based in part on earlier work in wireless telegraphy bySir Oliver Lodge, enabled several stations to operate on different wavelengths without interference. (In 1943 the U.S. Supreme Court overturned patent No. 7777, indicating that Lodge,Nikola Tesla, and John Stone appeared to have priority in...
Wavelengths Boca Raton, FL, USA free-form/student station links: web site, audio info WAVM Maynard, MA, USA free-form/student station links: web site WAWL Red Bank, TN, USA free-form/student station links: web site, schedule WBAA-AM West Lafayette, IN, USA news/talk/variety (73...
limit of human hearing (location : Bats 30k-80k, Whales 50k-200k) --0.003=---(3kHz)--- VLF,LF: Mobile, Fixed, Navigation, DGPS, Time Signals (20,25,50,60,66.6,75kHz) Enormous wavelengths are very useful for penetrating rock (cave to surface - molephones) and the oceans (for subm...
Within minutes amateur radio stations around the UK and throughout Europe were clamouring to contact the special BBC station and secure a prized entry in the logbook. The London BBC Radio Group was granted an extended special event radio licence by the regulator OFCOM, to operate the station ...
So while Radio Kootwijk was using a high-power long-wave transmitter to try and send Morse code messages to the Dutch colony of the East Indies, now Indonesia, engineers at Philips in Eindhoven realised that shorter wavelengths were best suited to long distance communication using much less power...
This meant that there would finally be competition for the four national radio stations that had donned the wavelengths for so many years. These are managed by Établissement de la radio tunisienne and are complimented by the organisation’s regional stations, including Sfax, Gafsa and Le Kef....
(EIRP), measured inwattsper metre squared. To achieve high EIRP the antenna dimensions should be several times larger than the largest transmitted wavelength. For frequencies below the medium frequency (MF) band, where wavelengths range upward from 100 metres (about 330 feet), this is usually ...
Centre for Astrophysics Research, University of Hertfordshire, Hatfield, UK M. J. Hardcastle GEPI, Observatoire de Paris, Université PSL, CNRS, Meudon, France C. Tasse Department of Physics & Electronics, Rhodes University, Grahamstown, South Africa C. Tasse Station de Radioastronomie de Nançay...
The Solar System at Radio Wavelengths Imkede Pater,William S.Kurth, inEncyclopedia of the Solar System (Third Edition), 2014 2.3Radio Emission from a Planet's Atmosphere Radio spectraof a planet's atmosphere can be interpreted by comparing observed spectra with synthetic spectra,which are obtained...