International Telecommunication Union

The International Telecommunication Union (ITU) is the United Nations specialized agency that coordinates the international use of radio frequencies, including those used by satellites. Its mandate is to help countries use radio-frequency spectrum and associated satellite orbits efficiently and equitably while preventing harmful interference between radio services.

Mandate and legal framework

Satellite signals cross national borders, so countries need common rules for using frequencies and coordinating satellite networks. The ITU provides this framework through its Constitution and the Radio Regulations.

• Article 44 of the ITU Constitution describes radio frequencies and associated orbits, including the geostationary-satellite orbit, as limited natural resources that must be used rationally, efficiently and economically.
• Their use must permit equitable access for countries, taking account of developing countries’ special needs and the geographical situation of particular countries.
• The Radio Regulations, revised through World Radiocommunication Conferences, establish international frequency allocations and procedures for coordinating, notifying and recording satellite frequency assignments.

How satellite coordination works

The system coordinates the technical use of spectrum and orbits rather than granting ownership of outer space. Countries act through their national administrations when submitting satellite-network information to the ITU.

• Frequency allocation identifies the radio services that may use particular frequency bands; a frequency assignment authorizes a particular station to use a frequency under specified conditions.
• Where coordination is required, administrations exchange technical information and seek agreement with affected administrations to avoid harmful interference between satellite networks and other radio systems.
• The ITU Radiocommunication Bureau examines submitted assignments under the Radio Regulations and records qualifying assignments in the Master International Frequency Register, providing the basis for international recognition.
• Some satellite bands use planning arrangements intended to safeguard countries’ access; other assignments follow coordination and notification procedures rather than a predetermined national allotment.

Scope and limits of the ITU’s role

ITU coordination is essential for orderly satellite communications, but it does not replace national regulation or confer unrestricted rights over an orbital position.

• Its framework covers both geostationary and non-geostationary satellite systems, although the applicable procedures differ.
• An ITU filing or recording is not, by itself, a national operating licence or permission to provide services within another country.
• For India, international coordination complements domestic decisions on spectrum authorization, service licensing and security requirements; it does not determine those decisions.