Private Pilot Licence · Practice

HF radio is preferred over VHF for long over-water or remote operations because HF:

• A.Uses far less transmitter power than VHF to achieve the same range
• B.Provides higher voice fidelity and clearer audio than VHF
• C.Uses ionospheric sky-wave propagation to reach thousands of km beyond the radio horizon
• D.Has lower background noise than VHF, especially at night