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ETSI EN 301 842-1
- Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF air-ground Data Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 1: General description and physical layer
- standard by European Telecommunications Standards Institute, 01/01/2002
- Publisher: ETSI
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This EN will cover VHF aeronautical radio equipment operating at 25 kHz channel spacing in the aeronautical band 118-136.975MHz. It covers ground-based, fixed data communication, VHF Data Link (VDL) mode 4. Reference documents: EUROCAE WG51 vdl MODE 4 MOPS ICAO SARPS on VDL mode 4