What is the frequency range for High...

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What is the frequency range for High Frequency?

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Question 1 of 27070

Q

What is the frequency range for High Frequency?

🔍 Key Concepts

• Standard radio spectrum bands: MF (Medium Frequency), HF (High Frequency), VHF (Very High Frequency) • Typical use of the HF band in maritime communications (long-range, beyond line-of-sight) • Where kHz ends and MHz begins in the spectrum

💭 Think About

• Which of the options matches the commonly accepted ITU/communications definition of the HF band (not just a slice of it)? • Look at each choice: which ones are too low (more like MF) or too high (moving into VHF)? • Is the HF band defined in kHz, MHz, or does it span a range that crosses into MHz?

✅ Before You Answer

• Identify which band around 300–3,000 kHz is usually called Medium Frequency (MF), not HF • Recall that VHF (Very High Frequency) starts at 30 MHz, so an HF upper limit must be below 30 MHz • Check which option represents the entire HF band range, not just a small operational portion used by some marine radios