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Land Station
Land station (also: land radio station) is – according to ''Article 1.69'' of the International Telecommunication Union´s (ITU) ITU Radio Regulations (RR)ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.69, definition: ''land station / land radio station'' – defined as ''«A radio station in the mobile service not intended to be used while in motion''.» Each ''station'' shall be classified by the ''service'' in which it operates permanently or temporarily. ;See also: ;Selection of ''land stations'' Mobilfunk-Basisstation.jpg, ''Land station'', here: aerial of a BSM-base station (land mobile service Land mobile service (short: LMS) is – in line to ITU Radio Regulations – a mobile service between base stations and land mobile stations, or between land mobile stations. In accordance with ''ITU Radio Regulations'' (article 1) variations of ...). Nokia GSM transmittor.jpg, ''Land station'', here: GSM transmitter / receiver (land mobile ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fixed Station
Fixed station (also. fixed radio station) is a station in the fixed service.ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.66, definition: ''fixed station / fixed radio station'' Each ''station'' is classified by the ''service'' in which it operates permanently or temporarily. Gallery Richtfunkantennen.jpg, Directional (beam) aerials, of radio relay stations. Radio Relay Station Former USAF microwave relay station ACE-High system at Lefkada, Greece, photo 6.JPG, Aerials of the ACE High troposcatter station, Lefkada Lefkada ( el, Λευκάδα, ''Lefkáda'', ), also known as Lefkas or Leukas ( Ancient Greek and Katharevousa: Λευκάς, ''Leukás'', modern pronunciation ''Lefkás'') and Leucadia, is a Greek island in the Ionian Sea on the west coast of G .... Shortwave Berlin.jpg, HF aerial on roof of the Chinese embassy, Berlin. References / sources International Telecommunication Union (ITU){{Radio station ITU Radio stations and sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Station
Radio broadcasting is transmission of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio station, while in satellite radio the radio waves are broadcast by a satellite in Earth orbit. To receive the content the listener must have a broadcast radio receiver (''radio''). Stations are often affiliated with a radio network which provides content in a common radio format, either in broadcast syndication or simulcast or both. Radio stations broadcast with several different types of modulation: AM radio stations transmit in AM ( amplitude modulation), FM radio stations transmit in FM (frequency modulation), which are older analog audio standards, while newer digital radio stations transmit in several digital audio standards: DAB (digital audio broadcasting), HD radio, DRM ( Digital Radio Mondiale). Television broadcasting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fixed Service
In telecommunications, a fixed service (or fixed radiocommunication service) is a radiocommunication service between specified fixed points. Classification The ITU Radio Regulations (article 1) classify variations of this radiocommunication service as follows: *Fixed-satellite service (article 1.21); Fixed station (article 1.66) *Inter-satellite service (article 1.22) *Earth exploration-satellite service (article 1.51) ** Meteorological-satellite service (article 1.52) Examples In line with national regulations there are numerous radio applications in accordance with ITU RR article 1.20 on fixed services. These include: * Radio relay * Troposcatter radiocommunication * Embassy radiocommunication, between fixed point * Fixed wireless Fixed wireless is the operation of wireless communication devices or systems used to connect two fixed locations (e.g., building to building or tower to building) with a radio or other wireless link, such as laser bridge. Usually, fixed wir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Telecommunication Union
The International Telecommunication Union is a specialized agency of the United Nations responsible for many matters related to information and communication technologies. It was established on 17 May 1865 as the International Telegraph Union, making it the oldest UN agency. The ITU was initially aimed at helping connect telegraphic networks between countries, with its mandate consistently broadening with the advent of new communications technologies; it adopted its current name in 1932 to reflect its expanded responsibilities over radio and the telephone. On 15 November 1947, the ITU entered into an agreement with the newly created United Nations to become a specialized agency within the UN system, which formally entered into force on 1 January 1949. The ITU promotes the shared global use of the radio spectrum, facilitates international cooperation in assigning satellite orbits, assists in developing and coordinating worldwide technical standards, and works to improve tele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ITU Radio Regulations
The ITU Radio Regulations (short: RR) is a basic document of the International Telecommunication Union (ITU) that regulates on law of nations scale radiocommunication services and the utilisation of radio frequencies. It is the supplementation to the ITU Constitution and Convention and in line with the ITU International Telecommunication Regulations (ITR). The ITU RR comprise and regulate the part of the allocated electromagnetic spectrum (also: radio frequency spectrum) from 9 kHz to 275 GHz. Structure The current approved version of the ITU Radio Regulations (addition 2012) is structured as follows: Volume 1 – Articles * CHAPTER I – Terminology and technical characteristics **Section I – General terms (article 1.1-1.15) **Section II – Specific terms related to frequency management (article 1.16-1.18) **Section III – Radiocommunication services (article 1.19-1.60) **Section IV – Radio stations and systems (article 1.61-1.115) **Section V – Operationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Service
Mobile service is – in line to ITU Radio Regulations – a radiocommunication service between mobile and land stations, or between mobile stations (CV). Classification In accordance with ''ITU Radio Regulations'' (article 1) variations of this ''radiocommunication service'' are classified as follows: ;Mobile service: *Mobile-satellite service (article 1.25) *Land mobile service (article 1.26) **Land mobile-satellite service (article 1.27) *Maritime mobile service (article 1.28) **Maritime mobile-satellite service (article 1.29) ** Port operations service (article 1.30) ** Ship movement service (article 1.31) *Aeronautical mobile service (article 1.32) ** Aeronautical mobile (R)° service (article 1.33) ** Aeronautical mobile (OR)°° service (article 1.33) **Aeronautical mobile-satellite service (article 1.35) *** Aeronautical mobile-satellite (R)° service (article 1.36) *** Aeronautical mobile-satellite (OR)°° service (article 1.37) (R)° = abbreviation to route flights (rout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Mobile Service
Land mobile service (short: LMS) is – in line to ITU Radio Regulations – a mobile service between base stations and land mobile stations, or between land mobile stations. In accordance with ''ITU Radio Regulations'' (article 1) variations of this ''radiocommunication service'' are classified as follows: Mobile service (article 1.24) *Land mobile service (article 1.26) ** Land mobile-satellite service (article 1.27) Frequency allocation The allocation of radio frequencies is provided according to ''Article 5'' of the ITU Radio Regulations (edition 2012). In order to improve harmonisation in spectrum utilisation, the majority of service-allocations stipulated in this document were incorporated in national Tables of Frequency Allocations and Utilisations which is with-in the responsibility of the appropriate national administration. The allocation might be primary, secondary, exclusive, and shared. *primary allocation: is indicated by writing in capital letters *secondary alloc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
