Call for Tenders No.: 20-220205-A Subject: AUGUR - Provision of a GPS RAIM Availability Prediction Service, including NOTAMs
AIM SG/1-IP/4 27/04/2014 International Civil Aviation Organization MIDANPIRG AIM Sub-Group First Meeting (AIM SG/1) (Cairo, Egyp
![The Ground-Based Augmentation System (GBAS) is a safety-critical system that augments the GPS Standard Positioning Service (SPS) and provides enhanced levels of service The Ground-Based Augmentation System (GBAS) is a safety-critical system that augments the GPS Standard Positioning Service (SPS) and provides enhanced levels of service](https://www.eurocontrol.fr/Newsletter/2002/November/GBAS/Image15.gif)