News Item

Changes for EGNOS users

The GEO satellites broadcasting EGNOS messages are about to be changed.

The geostationary earth orbit (GEO) satellite-based augmentation system (SBAS) over Europe provided by the European Geostationary Navigation Overlay Service (EGNOS) is about to be reconfigured - some GNSS receivers may themselves need to be reconfigured to accommodate the changes.

On 20 March at 1500 UTC, PRN 123 (31.5ºE - now in test) will become operational and, on 21 March at 1500 UTC, PRN 136 (5ºE) will cease to be operational and be declared as under test. PRN 120 (15.5ºW) will remain operational and PRN 126 (64ºE) will retain test status.

Users are advised to check equipment manuals or contact product manufacturers if necessary.

More details are available in Service Notice #15 at the link below and support is available at the EGNOS Helpdesk (

  • 14 March 2017
  • RIN

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