Call for Expression of Interest for High Accuracy Service (HAS) Full Service Testing

The European Union Agency for the Space Programme is launching a call for expression of interest to invite external stakeholders to participate in a new testing campaign of the High Accuracy Service (HAS) Signal in Space (SiS) broadcasting. This campaign prepares the HAS Full Service operational phase.

Please note that Corrigendum no. 1 and Clarification Note no. 1 were published on 22/09/2026.

Please note that Clarification Note no. 2 was published on 05/10/2026.

Please note that Corrigendum no. 2 and Clarification Note no. 3 were published on 14/10/2026. 

Please note that Corrigendum no. 3 and Clarification Note no. 4 were published on 30/10/2026.