Earth station

An earth station (in short: ErdFuSt; English earth station ) is, according to the definition of the International Telecommunication Union, a radio station that is either on the earth's surface or within most of the earth's atmosphere and that is intended to

• with one or more space stations or
• handle radio communications with one or more radio stations of the same type via one or more reflective satellites or other space bodies.

classification

According to VO radio (Article 1), this radio station is classified as follows:
Earth station (Article 1.63)

• Mobile earth station (Article 1.68); Satellite cellular service (Article 1.25)
• Fixed earth station (Article 1.70); fixed satellite service (Article 1.21) or satellite mobile service
  • Land satellite mobile earth station (Article 1.74); land mobile satellite service (Article 1.27)
• Fixed earth station (Article 1.72); fixed radio service via satellite
• Coastal earth station (Article 1.76); fixed radio service via satellite / cellular service via satellite
• Marine radio station (Article 1.78); Cellular service via satellite
• Ground earth station (Article 1.82); fixed satellite service / aeronautical mobile satellite service (Article 1.35)
• Aircraft radio station (Article 1.84); mobile aeronautical radio service via satellite

Selection of earth stations :

• 

  Earth station 1.63 , Goonhilly, England

• 

  Mobile earth station 1.68

• 

  Fixed earth station 1.70, here: antenna for feed connection (uplink)

• 

  Land radio service mobile earth station via satellite 1.74

• 

  Fixed land radio station 1.72, here: Raisting , Germany

• 

  Coastal earth station 1.76 Inmarsat, here: antenna PB5, France

• 

  Ship earth station 1.78 Inmarsat at the stern of a yacht

• 

  Ground earth station (1.82 left), aircraft earth station ( 1.84 right)

Usually have earth stations via parabolic antennas for the reception of radio waves or the (radio) broadcast radio waves via satellite feeder links (engl. Feeder left ) in defined radio frequency ranges that the particular radio service are assigned, and in which the earth station at least one radio frequency by the responsible frequency management has been assigned. These antennas have large antenna gains, are freely movable in the azimuth angle and elevation angle , are precisely aligned with a geostationary satellite , but can also follow the orbit of satellites orbiting the earth .

Known earth stations

Germany:

• Fuchsstadt earth station in Lower Franconia
• Groß Berkel earth station in Lower Saxony
• Earth station Neu Golm , Bad Saarow, Brandenburg
• Earth radio station Raisting am Ammersee, Bavaria
• Usingen earth station , Hochtaunus, Hesse
• Wannsee earth station , Berlin

Austria:

• Aflenz earth station , Aflenz Land

Switzerland:

• The earth stations operated by Swisscom in Leuk , Zurich , Basel and Geneva were given up or (Leuk) sold in 2001.

Related topics

• Radio telescopes are similar to the parabolic mirrors of the earth station, but serve as pure receivers ( also transmitters in the case of radar astronomy ) for observing various objects in space.
• Satellite stations are used for the geodetic observation of artificial earth satellites.

Individual evidence

1. ^ VO Funk , 2012 edition, Article 1.63
2. ↑ Swisscom is withdrawing from satellite communication