1. What equipment do I need on my aircraft to have HFDL capability?

    The following equipment is required:

    • Communications management unit (CMU), Management unit (MU) or Air Traffic Services Unit (ATSU) (Airbus)
    • 1 or 2 HF data capable radios (HFDR).
    • 2 HF analog or digital coupler
    • HF antenna
    • Radio tuning panel (RTP)
    • Flight management computer (FMC) or flight management system (FMS)

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