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DO-253D Change1 - Hard Copy

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  • DO-253D Change1 - Minimum Operational Performance Standards for GPS Local Area Augmentation System Airborne Equipment
  • This document is the complementary avionics standard to the International Civil Aviation Organization Annex 10 Volume I Ground Based Augmentation System standards and recommended practices (SARPs) for Ground based augment system Approach Service Types C (GAST C) and D (GAST D) as well as the differentially corrected positioning service (DCPS). Together, GAST C and GAST D support all categories of approach and landing operations with vertical and lateral guidance, as well as guided takeoff. DCPS supports horizontal positioning in local airport and terminal area environments. This change 1 of RTCA DO-253D primarily includes changes to the GBAS VHF Data Broadcast (VDB) receiver adjacent channel rejection requirements (Section 2.2.8) and the associated test procedures (Section 2.5), as well as the rationale for the VDB requirements (Appendix K) resulting from coordination of the frequency compatibility with the ICAO Navigation Systems Panel. This change 1 also includes a correction to the embedded synchronization and ambiguity resolution sequence test message (Table 2-26) contained in the VDB Training Sequence and Message Failure Rate Test (Section 2.5.2.2.5.4). RTCA DO-253D Change 1 supersedes RTCA DO-253D.
  • DO-253D Change1
  • Hard Copy
  • SC-159
  • 6/27/2019