What is the average range of vessel-to-vessel...

Question 1 / 2707066636ef128f7522a1c522870

Question 1 of 2707066636ef128f7522a1c522870

What is the average range of vessel-to-vessel VHF-FM radio communications?

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Question 1 of 27070

Q

What is the average range of vessel-to-vessel VHF-FM radio communications?

🔍 Key Concepts

• Line-of-sight limitations of VHF-FM radio waves • Typical height of antennas on small vessels and how that affects range • Difference between vessel-to-vessel range and ship-to-shore (high antenna) range

💭 Think About

• Think about how far radios that depend on line-of-sight can usually reach when both antennas are relatively close to the water. • Compare what you know about small boat VHF ranges with the much longer ranges you might get from satellite or HF (high frequency) systems. • Ask yourself which of these distances is more realistic for two average recreational or small commercial vessels talking directly to each other.

✅ Before You Answer

• Confirm that VHF-FM marine radios are generally line-of-sight, not long-range skywave communications. • Remember the antenna height on typical vessels – they are not on very tall towers like shore stations. • Eliminate any distance ranges that seem more appropriate for satellite or HF radio, not simple VHF-FM.

Question 1 of 27070

Q

What is the average range of vessel-to-vessel VHF-FM radio communications?

A

15 to 20 miles

B

60 to 90 miles

C

90 to 120 miles

D

120 to 150 miles

Question 1 / 2707066636ef128f7522a1c522870

Question 1 of 2707066636ef128f7522a1c522870

What is the average range of vessel-to-vessel VHF-FM radio communications?

Back

Question 1 of 27070

Q

What is the average range of vessel-to-vessel VHF-FM radio communications?

🔍 Key Concepts

• Line-of-sight limitations of VHF-FM radio waves • Typical height of antennas on small vessels and how that affects range • Difference between vessel-to-vessel range and ship-to-shore (high antenna) range

💭 Think About

• Think about how far radios that depend on line-of-sight can usually reach when both antennas are relatively close to the water. • Compare what you know about small boat VHF ranges with the much longer ranges you might get from satellite or HF (high frequency) systems. • Ask yourself which of these distances is more realistic for two average recreational or small commercial vessels talking directly to each other.

✅ Before You Answer

• Confirm that VHF-FM marine radios are generally line-of-sight, not long-range skywave communications. • Remember the antenna height on typical vessels – they are not on very tall towers like shore stations. • Eliminate any distance ranges that seem more appropriate for satellite or HF radio, not simple VHF-FM.