What is the primary function of an NCS?

Correct Answer: Option A — To monitor and control communications through the Inmarsat satellite for which it is responsible.

The Network Coordination Station (NCS) acts as the central controller for a specific Inmarsat ocean region. Its primary function is to manage the satellite channel assignments, monitor terminal logins, and coordinate the flow of signaling traffic to ensure efficient and orderly communications for all registered mobile earth stations.