What is High-Frequency Data Link?
High-Frequency Data Link A long-range communication system enabling digital message exchange between aircraft and ground stations via high-frequency (HF) radio bands, often used for ATC datalink in oceanic and remote airspace (ICAO Doc 10037).
Source: ICAO Doc 9432, FAA PCG
How is “High-Frequency Data Link” Used in Practice?
Use the High-Frequency Data Link as primary datalink when VHF and SATCOM coverage is unavailable.
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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What is High-Frequency Data Link?
A long-range communication system enabling digital message exchange between aircraft and ground stations via high-frequency (HF) radio bands, often used for ATC datalink in oceanic and remote airspace (ICAO Doc 10037).
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