The satellite radio comprises all radio applications that use satellites for technical communication. The applications use frequencies in the range between 1 GHz and 40 GHz. These frequencies are separated in bands, defined by the International Telecommunication Union (ITU), for different services, for example: military communication, research radio, satellite television (BSS) and satellite media services. Another application, for example, is the Digital Audio Broadcasting in the L-band. Transmitted by satellite it's called S-DAB, transmitted by terrestrial antennas so called T-DAB. To receive satellite television or audio broadcasts a parabolic antenna, colloquial dish aerial, is needed. A two-way communication which may be known from outside broadcasting vans ("OB van", "scanner", "mobile unit") needs powerful parabolic antennas, so called VSAT (Very Small Aperture Terminal). The diameters of VSATs are between 2 m (Ka-band) and 8 m (C-band).
|electric field strength||0–0.79 V/m (min-max value, measured)||-||Sat-Com C Sailor 6006 System (1626,5 - 1646,5 MHz) measured at 12 locations on a marine ship |
|electric field strength||0.2–0.33 mV/m (maximum)||-||in the 14 GHz uplink band |
|electric field strength||70 V/m–15 mV/m (maximum)||-||in the 6 GHz uplink band |
|power density||8 W/m² (maximum)||-||VSAT in main beam direction with frequency: 1.5 - 1.6 GHz |