The International Amateur Radio Union (IARU) is a federation of national associations of certified radio amateurs, representing over 150 countries and separate territories around the world.

The three IARU Regions are organised to broadly mirror the structure of the International Telecommunications Union (ITU) and its related regional telecommunications organisations. The Regions comprise:
- IARU Region 1: Europe, Africa, the Middle East and Northern Asia
- IARU Region 2: The Americas
- IARU Region 3: Asia-Pacific

The IARU represents the interests of the Amateur Radio Service worldwide to relevant international organisations, promoting the interests of amateur radio and seeking to protect and enhance its spectrum privileges.

Amateur Satellite Frequency Coordination Request

(IARU-R1) January 2003

Throughout its 100-year history, amateur radio has maintained a proud and effective tradition of self-regulation. An amateur license does not convey the exclusive right to use any particular frequency. It is generally recognized, however, that some types of amateur operation, including satellites, require frequency coordination to promote the efficient use of spectrum and minimize mutual interference.

In most countries, frequency coordination of terrestrial amateur operations, e.g., repeater stations, is done through their national member societies of the International Amateur Radio Union (IARU). In turn, each IARU Region (which correspond to the three global regions of ITU) maintains a series of band plans, within which their national frequency coordinators function.

Amateur radio satellites present a special case, because satellite operation is inherently global in nature, requiring an effective global system of frequency coordination. An uncoordinated satellite is capable of causing harmful interference to stations around the world, and being interfered with by them.

Frequency coordination of amateur radio satellite operations is the responsibility of the IARU Satellite Adviser, a senior official appointed by IARU’s Administrative Council, its top policymaking body. He is assisted by an advisory panel selected from among qualified experts nominated by national amateur radio satellite (AMSAT) organizations of all three Regions.

Laws governing the licensing and operation of amateur radio satellites, and their associated earth stations, are administered by national telecommunications administrations, pursuant to the ITU Radio Regulations. The IARU Administrative Council has approved a paper, Amateur radio Satellites , prepared jointly by IARU and AMSAT, which outlines the requirements of the ITU Radio Regulations and good amateur practice. Frequency coordination of amateur radio satellites is done according to these requirements.

Requests for frequency coordination should be made as far in advance of launch as possible, and in any event before the final selection of operating frequencies. Such requests should be addressed to the IARU Satellite Advisor, who will consult with your country’s national AMSAT organization (if there is one), and the advisory panel. Satellite-building organisations are encouraged to contact their national AMSAT organization directly for assistance, even before submitting their requests. Names and addresses of AMSAT organisations may be found on the AMSAT-North America Web site.