ICAO manual that provides guidance for implementing VHF Digital Link (VDL) Mode 2, covering system capabilities, protocols and technical specifications.
The manual explains the purpose and scope of VDL Mode 2, offering guidance for its implementation in air‑ground communication systems. It references the SARPs developed by the Aeronautical Mobile Communications Panel and aligns with Annex 10, Volumes III and V of the International Civil Aviation Organization standards.
The document is organized into two parts: Part I addresses implementation aspects such as definitions, system capabilities, physical‑layer protocols, link‑layer protocols and subnetwork management; Part II provides detailed technical specifications for ground and aircraft installations, including frequency stability, effective radiated power and emission standards.
The purpose of the manual is to provide guidance when implementing VDL Mode 2.
The Aeronautical Mobile Communications Panel (AMCP) developed the VDL SARPs.