HF Aeronautical Communications

Aircraft on HF

Aircraft utilize HF communications when VHF (Line of Sight) communications is not sufficient. The primary usage of HF is for Trans-oceanic flights. Trans-oceanic flights communicate with ground stations via HF for position reports and other purposes. Another utilization of HF communications is for HFDL or High Frequency DataLink. Finally Military Aircraft (MILCRAFT) utilize HF for operational and training.

• Aeronautical Enroute and Aeronautical Fixed Stations regulations
• Aeronautical HF Radio Map
• HFDL
• MWARA frequencies - Aircraft use these stations to communicate over water when out of VHF radio range.
• MWARA Frequency map on HFunderground
• Aircraft on trans-oceanic flights can receive updated weather conditions via VOLMET (meteorological information for aircraft in flight) networks. See here for frequencies.

Regional and Domestic Air Route Areas (RDARA-via Utility Planet)

• 2-3 Mhz
• 3-4 Mhz
• 4-5 Mhz
• 5-6 Mhz
• 6-8 Mhz
• 8-9 Mhz
• 9-11 Mhz
• 11-12 Mhz
• 12-15 Mhz
• 15-21 Mhz
• 21-30 Mhz
  • Note: Other services are mixed in with these lists
  • Note: The HFDL frequncies listed here are out of date. See the HFDL article above for more.