Purpose of the SAT MoU

The increasing usage of geostationary as well as non geostationary satellites will result in a more crowded frequency spectrum. This has a significant economic impact. In order to guarantee reliable satellite services and interference free operation, Administrations will take the responsibility for efficient frequency management.

Satellite spectrum monitoring is required to ensure efficient frequency management. For this purpose, a fully equipped monitoring earth station is available in Leeheim Space Radio Monitoring Station (Germany). It comprises 4 major antennas covering the frequency range 130 MHz – 26.5 GHz. The station is capable of monitoring geostationary as well as non geostationary satellites and also of localizing satellite interferers on earth.

Due to the highly specialized and costly nature of satellite monitoring facilities, an agreement on the access to these facilities and on the sharing of costs for national authorities using these facilities has been established. The agreement facilitates the following monitoring activities:

  • Investigation of interference to and from satellites
  • Detection of the illicit use of satellites
  • Monitoring the usage of spectrum and orbital resources


Up to now the signatories of the agreement are (in alphabetical order): France, Germany, Luxembourg, The Netherlands, Switzerland and the United Kingdom.

Updated: 15 February 2019, 14:09