How are Iridium calls routed through the...

Question 1 / 27070B9wfuLEYRPtpU3HtiiEb

Question 1 of 27070B9wfuLEYRPtpU3HtiiEb

How are Iridium calls routed through the satellite system?

Question 1 of 27070

How are Iridium calls routed through the satellite system?

🔍 Key Concepts

• Iridium satellite constellation characteristics (orbit type and number of satellites) • Difference between bent‑pipe (store-and-forward) satellites vs. inter‑satellite links • What geostationary means and which systems use it (e.g., Inmarsat vs. Iridium)

💭 Think About

• Think about whether Iridium satellites stay fixed over one point on the equator, or move quickly across the sky in low Earth, near-polar orbits. • Consider whether Iridium is designed to delay calls until a satellite sees a ground station, or to move traffic rapidly across the constellation. • Ask yourself: does Iridium rely on another type of satellite (like geostationary ones) to complete its links, or is it a self-contained network?

✅ Before You Answer

• Verify whether Iridium uses low Earth, near-polar orbits rather than geostationary orbits. • Check if Iridium satellites have inter-satellite links that let them pass traffic among themselves. • Eliminate any option that depends on a store-and-forward delay or on geo-stationary satellites if that does not match Iridium’s known architecture.

Question 1 of 27070

How are Iridium calls routed through the satellite system?

The satellites store the calls and forwards them to ground stations when they are in view.

The satellites are in view of one another and traffic can swiftly be passed to a ground station.

The satellites are geo-stationary and route the traffic immediately to the ground stations.

The satellites in polar orbits pass traffic to geo-stationary satellites and then to ground stations.

Question 1 / 27070B9wfuLEYRPtpU3HtiiEb

Question 1 of 27070B9wfuLEYRPtpU3HtiiEb

How are Iridium calls routed through the satellite system?

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Question 1 of 27070

How are Iridium calls routed through the satellite system?