What is the best method to overcome the...

Question 1 / 2066636eec28f7522a1c51c02d

Question 1 of 2066636eec28f7522a1c51c02d

What is the best method to overcome the effects of shadowing when attempting to place an INMARSAT-B call

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Question 1 of 20

66636eec28f7522a1c51c02d

What is the best method to overcome the effects of shadowing when attempting to place an INMARSAT-B call

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🔍 Key Concepts

• INMARSAT-B antenna line-of-sight requirements for geostationary satellites • What shadowing means on a ship (masts, funnels, deck cargo blocking the antenna) • How a vessel’s heading and relative bearing to the satellite affect antenna blockage

💭 Think About

• Think about whether electronic settings or filters can remove a physical blockage between the antenna and the satellite. • Ask yourself: if the funnel or mast is blocking the antenna, what simple action could change that relative position? • Consider which option you could use quickly and safely at sea, without needing new hardware or shore-based changes.

✅ Before You Answer

• Verify which options deal with physical line-of-sight rather than electronic signal processing. • Check which choice you can apply immediately from the bridge without modifying equipment. • Confirm which method would change the relative geometry between antenna, obstruction, and satellite.

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Question 1 of 20

What is the best method to overcome the effects of shadowing when attempting to place an INMARSAT-B call

Turning on compensators will work in all but extreme cases of shadowing.

Select a CES that serves the INMARSAT satellite that will handle the call.

Installing a shadow correction filter will compensate in fringe areas.

A small course change should work.

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Question 1 / 2066636eec28f7522a1c51c02d

Question 1 of 2066636eec28f7522a1c51c02d

What is the best method to overcome the effects of shadowing when attempting to place an INMARSAT-B call

Back

Question 1 of 20

66636eec28f7522a1c51c02d

What is the best method to overcome the effects of shadowing when attempting to place an INMARSAT-B call

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

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