What are the lowest frequencies used in...

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Question 1 of 20t1a6JKuWl2oIKBgpE8x7

What are the lowest frequencies used in radio communication today?

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t1a6JKuWl2oIKBgpE8x7

What are the lowest frequencies used in radio communication today?

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🔍 Key Concepts

• Radio frequency bands used in marine communications (VLF, LF, MF, HF, VHF) • Difference between frequency in kHz and types of modulation (SSB, FM) • Typical frequency ranges used for maritime SSB voice vs. very low frequency systems

💭 Think About

• First, separate the choices that are specific frequency ranges from those that are types of modulation. What is the question actually asking for? • Think about where very low frequency (VLF) and low frequency (LF) sit on the radio spectrum compared to common marine HF and VHF channels. • Consider whether modern marine communication systems normally operate below 30 kHz, and if so, what they are mainly used for.

✅ Before You Answer

• Check the numerical order of frequencies given (1 kHz, 5 kHz, 15 kHz, HF/VHF voice) and which are truly the lowest on the spectrum. • Verify whether SSB voice is a modulation method covering a band of frequencies, rather than a specific frequency value. • Confirm if kHz values below 30 kHz are realistic and currently used in certain specialized long‑range maritime or navigation systems.

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Question 1 of 20

What are the lowest frequencies used in radio communication today?

SSB voice

Double-sideband FM voice

15 kHz

1 kHz to 5 kHz

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Question 1 / 20t1a6JKuWl2oIKBgpE8x7

Question 1 of 20t1a6JKuWl2oIKBgpE8x7

What are the lowest frequencies used in radio communication today?

Back

Question 1 of 20

t1a6JKuWl2oIKBgpE8x7

What are the lowest frequencies used in radio communication today?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

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