What is the frequency range for Super High Frequency?

Official USCG Answer & Rule Citation

Correct Answer: Option D — 3-30 GHz

Super High Frequency (SHF) is defined by the ITU as the radio frequency range between 3 GHz and 30 GHz. This band is critical for modern maritime satellite communications, including high-speed data links and VSAT systems, which operate well above the lower frequency bands used for traditional terrestrial radio.

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