RTCA DO-246
GNSS Based Precision Approach Local Area Augmentation System (LAAS) – Signal-in-Space Interface Control Document (ICD)
| Organization: | RTCA |
| Publication Date: | 16 December 2008 |
| Status: | inactive |
| Page Count: | 118 |
scope:
DO-246D includes the earlier document revisions and incorporates the standards for LAAS to support Cat. II and III precision approaches. DO-246C included changes to harmonize the document with DO-245A, LAAS MASPS. The three primary areas of change were:
1. Definition of additional data for supporting Cat. II/III precision approach operations [Additional data blocks 3 and 4 for Message Type 2].
2. Definition of LAAS uplinked Terminal Area Paths (TAP) data for supporting additional Terminal Area Procedures [Provisions for TAP data to be included in Message Type 4].
3. All references to pseudolites / Ground Based Ranging Sources were removed.
Document History