Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz)...

The ITU Radiocommunication Sector (ITU-R) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU) and is responsible...

The World Radiocommunication Conference (WRC) is a conference organized by the ITU to review and, as necessary, revise the Radio Regulations, the international...

Fixed-satellite service (short: FSS | also: fixed-satellite radiocommunication service) is – according to article 1.21 of the International Telecommunication...

1932 (ITU-T E.141; withdrawn in 1993) General Radiocommunication Regulations and Additional Radiocommunication Regulations (Cairo, 1938) Radio Regulations...

Inter-satellite service, also known as inter-satellite radiocommunication service, as defined by Article 1.22 of the International Telecommunication Union's...

Telecommunication Union (ITU) that regulates on law of nations scale radiocommunication services and the utilisation of radio frequencies. It is the supplementation...

exploration-satellite radiocommunication service) is – according to Article 1.51 of the ITU Radio Regulations (RR) – defined as: A radiocommunication service between...

meteorological-satellite service (also: meteorological-satellite radiocommunication service) is – according to Article 1.52 of the ITU Radio Regulations...

A radio communication station is a set of equipment necessary to carry on communication via radio waves. Generally, it is a receiver or transmitter or...