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What is the fundamental concept of the GMDSS?

• GMDSS utilizes automated systems and satellite technology to improve emergency communications for the world’s shipping industry.
• It is intended to automate and improve existing digital selective calling procedures and techniques
• It is intended to provide more effective but lower cost commercial communications
• It is intended to provide compulsory vessels with a collision avoidance system when they are operating in waters that are also occupied by non-compulsory vessels.

The primary purpose of the GMDSS is ?

• Allow more effective control of SAR situations by vessels.
• Automate and improve emergency communications for the world's shipping industry.
• Provide additional shipboard systems for more effective company communications.
• Effective and inexpensive communications.

What is the basic concept of GMDSS?

• Shoreside authorities will rely on reports from nearby vessels to become aware of Distress alerts.
• Shoreside authorities and vessels can assist in a coordinated SAR operation only after the correct chain of DSC relays takes place.
• SAR authorities ashore can be alerted to a Distress situation & shipping in the vicinity can be requested to participate in SAR operations.
• SAR authorities ashore wait to have EPIRB Distress alerts confirmed by satellite follow-on communications.

GMDSS is primarily a system based on:

• Ship-to-ship Distress communications using MF or HF radiotelephony.
• VHF digital selective calling from ship to shore.
• Distress, Urgency and Safety communications carried out by the use of narrow-band direct printing telegraphy.
• The linking of search and rescue authorities ashore with shipping in the immediate vicinity of a ship in Distress or in need of assistance.

What is the responsibility of compulsory GMDSS vessels?

• Every vessel must be able to perform communications functions essential for its own safety and the safety of other vessels.
• Vessels must transmit a DSC distress relay upon receipt of a DSC distress alert.
• Only the vessels closest to a Distress incident must render assistance.
• Vessels must immediately acknowledge all DSC distress alerts.

GMDSS is required for which of the following?

• All vessels capable of international voyages.
• SOLAS Convention ships of 300 gross tonnage or more.
• Vessels operating outside of the range of VHF coast radio stations.
• Coastal vessels of less than 300 gross tons.

Which GMDSS system utilizes terrestrial radio techniques?

• F-77
• Inmarsat-C
• GPS
• VHF-MF-HF-DSC

What equipment utilizes satellite communications?

• Inmarsat-C
• VHF-MF-HF
• NAVTEX
• SART

What equipment is used in or near the survival craft?

• NAVTEX
• EPIRB
• Fathometer
• COSPAS-SARSAT

What equipment is programmed to initiate transmission of Distress alerts and calls to individual stations?

• NAVTEX
• GPS
• DSC Controller
• DSC Scanning Watch Receiver