What is the frequency range for Medium Frequency?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 300-3,000 kHz
The Medium Frequency (MF) band is internationally defined by the ITU Radio Regulations as the range between 300 kHz and 3,000 kHz. This spectrum is vital for GMDSS operations, specifically for MF-DSC alerting and radiotelephony, providing reliable medium-range communications beyond the line-of-sight limitations of VHF systems.
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