At mid-day, what would be the best choice in...

Question 1 / 20RPWpb60FXq3JHsLl8lCJ

Question 1 of 20RPWpb60FXq3JHsLl8lCJ

At mid-day, what would be the best choice in attempting to communicate with a shore station 15 miles distant?

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Question 1 of 20

RPWpb60FXq3JHsLl8lCJ

At mid-day, what would be the best choice in attempting to communicate with a shore station 15 miles distant?

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🔍 Key Concepts

• VHF (Very High Frequency) vs HF (High Frequency) radio bands and their typical uses • How time of day (mid-day vs night) affects radio wave propagation, especially for HF • The normal range and purpose of marine VHF (156–174 MHz) for ship-to-ship and ship-to-shore

💭 Think About

• Which radio bands listed are normally used for marine VHF communications with nearby shore stations? • How does skywave/ionospheric reflection affect HF frequencies (like 12 and 22 MHz) compared with higher VHF frequencies over a relatively short distance like 15 miles? • For a 15‑mile distance in daylight, do you primarily rely on line-of-sight or on long-distance skip propagation?

✅ Before You Answer

• Identify which option corresponds to the standard marine VHF band (Channel 16, working channels, etc.) • Check typical service range of marine VHF for a vessel to a shore station and compare it to 15 miles • Confirm which bands (in MHz) are more suitable for long-range HF skywave communication rather than short-range coastal communication

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Question 1 of 20

At mid-day, what would be the best choice in attempting to communicate with a shore station 15 miles distant?

16 MHz band

156 - 164 MHz band

12 MHz band

22 MHz band

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Question 1 / 20RPWpb60FXq3JHsLl8lCJ

Question 1 of 20RPWpb60FXq3JHsLl8lCJ

At mid-day, what would be the best choice in attempting to communicate with a shore station 15 miles distant?

Back

Question 1 of 20

RPWpb60FXq3JHsLl8lCJ

At mid-day, what would be the best choice in attempting to communicate with a shore station 15 miles distant?

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?

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