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Questions and Answers

What does RX stand for?

  • Medical Prescription
  • Rescue
  • Receiver (correct)
  • Radio Telex

The initial report required from a ship entering a ship reporting system should generally be limited to all of the following EXCEPT:

  • Call sign (correct)
  • Ship's name
  • IMO identification number
  • MMSI number

How should you respond upon receipt of a DSC Distress alert?

  • Read the display screen and/or printout, silence the alarm, always call the Master to confirm the alert is real.
  • Silence the alarm, read the display screen and/or printout and listen for any follow-on transmissions. (correct)
  • Listen for any follow-on voice/TELEX transmission on the appropriate DSC frequency.
  • Silence the alarm, read the display screen and/or printout, only call the Master if the alert is within 500 nautical miles.

What is the term used for the backup electrical energy supply for radio installations on ships during distress communication?

<p>Ship's emergency diesel generator (C)</p> Signup and view all the answers

According to SOLAS IV, which sea area provides continuous DSC alerting available from at least one VHF coastal station?

<p>Sea Area A1 (D)</p> Signup and view all the answers

Which international body must a Ship Reporting System adhere to its measures adopted?

<p>IMO (C)</p> Signup and view all the answers

In radiowave propagation, what is the term that defines the distance between the tops of two waves?

<p>Wavelength (C)</p> Signup and view all the answers

Who serves as the control station after using DSC to set up Routine RT communications between a ship and a coast station?

<p>The coast station (A)</p> Signup and view all the answers

What is the maximum distance a SART can be indicated by a series of dots on a radar screen?

<p>5 nautical miles (A)</p> Signup and view all the answers

What is the effect of temperature on the specific gravity of a lead acid battery?

<p>Higher temperature results in a lower specific gravity reading. (B)</p> Signup and view all the answers

After sending a false Distress alert on MF, which action should you take to cancel it?

<p>Make a voice announcement to cancel the alert on 2182.0 kHz (D)</p> Signup and view all the answers

What must a GMDSS-equipped vessel carry if operating within Ocean Area A1 and outside of NAVTEX coverage?

<p>Equipment capable of maintaining a continuous DSC watch on 2187.5 kHz (B)</p> Signup and view all the answers

What should be done if a vessel must be abandoned due to distress?

<p>Place the SART and EPIRB in the 'on' position and secure them to the survival craft. (A), Program the SART and EPIRB to transmit the vessel's location and situation. (C)</p> Signup and view all the answers

Which Radio Regulation Article refers to a radiocommunication service providing links between artificial satellites?

<p>Inter-satellite service (D)</p> Signup and view all the answers

Where can the functional requirements for GMDSS compliant vessels be found?

<p>In Schedule 3 of Marine Order 29 (Safety of Navigation and Radio equipment) 2016 (B)</p> Signup and view all the answers

Which statement about radio log archival by the station licensee is false?

<p>Retain for two years if there are no distress entries. (C)</p> Signup and view all the answers

Which statement is NOT true regarding the SART?

<p>Operates in conjunction with a vessel's S-Band radar. (A)</p> Signup and view all the answers

What information does Message 1 in the DSC distress call include?

<p>Single character indicating the type of communication preferred (B)</p> Signup and view all the answers

When operating in coastal waters (sea area A1), what must a GMDSS equipped vessel maintain?

<p>A continuous DSC watch on VHF Channel 16 (D)</p> Signup and view all the answers

What radar band does 9 GHz frequency belong to?

<p>X-band (B)</p> Signup and view all the answers

According to SOLAS IV, what does an area excluding sea area A1 indicate?

<p>Sea Area A3 (A), Sea Area A4 (B)</p> Signup and view all the answers

What is the fundamental principle for imposing radio silence?

<p>To mitigate the risk of interference on a frequency used for emergency communications. (D)</p> Signup and view all the answers

Which reference should the GMDSS Radio Operator consult for proper equipment operation?

<p>Manufacturer's operational manual (D)</p> Signup and view all the answers

Under what circumstance should a distress alert NOT be transmitted by a station on behalf of another vessel in distress?

<p>When the Master of the mobile unit in distress decides otherwise. (B)</p> Signup and view all the answers

What is the proper term for a coast radio station that primarily handles chargeable ship-to-shore message traffic of a routine nature?

<p>Public Correspondence Station (C)</p> Signup and view all the answers

Which of the following is NOT a provision for maintenance that a ship operating in area A-1 must have?

<p>Shore maintenance (A)</p> Signup and view all the answers

When considering medical evacuations, what should be weighed for the benefits to both the person needing assistance and the rescued personnel?

<p>Against the inherent dangers of such operations. (C)</p> Signup and view all the answers

Which code signifies 'I need a Doctor, I have radiation casualties' as per the International Code of Signals, Chapter 3?

<p>AN 2 (A)</p> Signup and view all the answers

What is the suitable antenna type for a ship's VHF radio?

<p>Whip antenna (C)</p> Signup and view all the answers

What is a requirement imposed for the survival craft of vessels over 500 gross tons?

<p>Four additional portable VHF radios are required. (D)</p> Signup and view all the answers

How does a SART signal appear on a RADAR screen?

<p>As an intermittent line with distinct patterns (C)</p> Signup and view all the answers

Which of the following statements about Routine DSC Alerts and the frequency 2187.5 KHz is correct?

<p>Routine DSC Alerts can be made at all times on 2187.5 KHz. (A)</p> Signup and view all the answers

What is the requirement for ship station MMSI numbers?

<p>All ship station MMSI must start with a single zero and include the MID. (A)</p> Signup and view all the answers

Which statement best describes amplitude modulation?

<p>The amplitude of the carrier is modified, maintaining only a single frequency. (C)</p> Signup and view all the answers

What is the most effective method to test the Inmarsat-C terminal?

<p>Compose and send a brief message to your own Inmarsat C terminal. (D)</p> Signup and view all the answers

Under which International convention was the Automatic Identification System (AIS) introduced?

<p>SOLAS (D)</p> Signup and view all the answers

Which of the following is an obligatory requirement for GMDSS?

<p>SOLAS Convention ships of 300 gross tonnage or more (B), All vessels capable of international voyage (C)</p> Signup and view all the answers

What emergency phase is declared when a ship or a person on board is in grave and imminent danger?

<p>Distress phase (A)</p> Signup and view all the answers

Which statement concerning homing signals in the GMDSS is FALSE?

<p>A GPS receiver can detect a homing signal. (A)</p> Signup and view all the answers

What is the VHF DSC channel used for both distress alerting and calling for public correspondence?

<p>Channel 70 (D)</p> Signup and view all the answers

What must be demonstrated during an annual GMDSS station inspection?

<p>All required documents and publications might have to be produced. (A)</p> Signup and view all the answers

How can a SART's effective range be maximized?

<p>The SART should be mounted horizontally for better signal matching. (A)</p> Signup and view all the answers

What type of weather-related information is typically received by the master through Inmarsat-C or NAVTEX?

<p>Weather advisory (B)</p> Signup and view all the answers

Which of the following tasks is a required function of GMDSS?

<p>Bridge-to-Bridge communications, reception of weather map facsimile broadcasts, SAR communications (D)</p> Signup and view all the answers

What NAVAREA covers Philippine waters in the international NAVTEX System?

<p>XI (D)</p> Signup and view all the answers

How is trading at GMDSS Sea Area A3 best described?

<p>An area reliant on satellite communication (B)</p> Signup and view all the answers

What is the correct term for required GMDSS operations involving emergency communications?

<p>Distress and safety communications (A)</p> Signup and view all the answers

Flashcards

Routine DSC Alerts on 2187.5 KHz?

Routine DSC alerts are not permitted on 2187.5 KHz between 1700 and 1900 UTC, or between 0900 and 1700 UTC. They are permitted at any time.

MMSI structure (Shipstation)

Shipstation MMIs start with a single zero and contain the MID (Maritime Identification Data).

Amplitude Modulation (AM)

AM radio transmits a signal where the amplitude of the carrier wave changes, while the frequency remains constant.

Testing Inmarsat-C Terminal

The best way to test an Inmarsat-C terminal is to compose and send a short message to your own terminal.

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AIS introduction convention

The Automatic Identification System (AIS) was introduced under the International Maritime Organization (IMO) convention.

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FALSE GMDSS homing signal statement

A homing signal CAN be detected by a GPS receiver and does NOT provide a bearing for rescue personnel to follow to the signal's source are FALSE. A homing signal provides a signal for rescue personnel to follow, and it's detectable by COSPAS-SARSAT satellites.

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VHF DSC distress channel

Channel 16 is used for both distress alerting and calling for public correspondence.

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Maximizing SART range

The SART's effective range is maximized by mounting it horizontally, to match the searching radar, and not throwing it immediately.

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Radiotelephone safety signal

The radiotelephone safety signal is "MAYDAY" repeated three times.

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No power output from microphone

A situation where a microphone produces no output.

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Failure to contact shore station (600 NM)

Inability to reach a shore station 600 nautical miles away during the day.

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Routine RT communications control

Who is in charge after setting up ship-to-coast radio communications using DSC.

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Vessel abandoned (distress)

Steps to take when a ship must be abandoned due to distress.

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Radio log retention (distress)

How long a station licensee must keep radio logs, especially when distress events occur.

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SART operation

The SART's function, operation and the radar band it is on.

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Radar band for SART

The specific frequency band for SART operations.

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Radiotelephone sea area (DSC Alerting)

The sea area where continuous DSC alerting is available, excluding A1.

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Radio silence principle

The fundamental reason for radio silence in emergency situations.

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GMDSS Radio Operator Equipment Reference

Where a radio operator should look for guidance on operating specific equipment.

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RX

Abbreviation for Receiver

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Ship Reporting System initial report

Should include IMO identification number, MMSI number, and ship's name, but NOT the call sign.

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Action on DSC Distress alert

Silence the alarm, read the display, listen for further transmissions. Only call the Master if the alert is nearby (within 500 nautical miles).

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Sea Area A1 (radiotelephone coverage)

Continuous DSC alerting area covered by at least one VHF coastal station.

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Organization for a Ship Reporting System

Must adhere to measures adopted by the International Maritime Organization (IMO).

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Effect of temperature on lead-acid battery

Lower temperature results in a lower specific gravity reading.

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Ocean Area A1 equipment (outside NAVTEX coverage)

Equipment capable of maintaining continuous DSC watch on 2187.5 kHz, or Maritime Safety Information via Inmarsat, or HF SITOR NDBP

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Radiocommunication service between satellites

Inter-satellite service is the radiocommunication service providing links between artificial satellites.

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ALRS Volume, publications details

Contains details for Maritime Weather services, Safety Information broadcasts, Worldwide NAVTEX and SafetyNET information.

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Ship's Emergency Power

The electrical energy supply for radio communications in case of ship's main power failure.

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Wavelength in Radiowaves

The distance between two corresponding points on a radio wave.

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SART Radar Display

A series of dots on radar that indicates the distance of the distress beacon.

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False Distress Alert on MF

Cancellation of a false distress alert is to be made by voice announcement on the appropriate frequency.

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GMDSS Functional Requirements for Non-SOLAS Vessels

Specifications for vessels not under SOLAS are found in Marine Order 29, Schedule 3.

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DSC Distress Call Message 1

Indicates the type of communication preferred for exchanging distress traffic.

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Coastal Waters DSC Watch

Maintaining a continuous DSC watch on VHF Channel 70 in coastal waters (sea area A1).

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Distress alert transmission by proxy

A coast station should not transmit a distress alert on behalf of another vessel unless the distressed vessel itself cannot transmit the alert, or if the coast station determines additional help needed.

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Public Correspondence Station

A coast radio station primarily handling routine ship-to-shore messages.

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A-1 area maintenance

Required maintenance for ships in area A-1 does NOT include "At Sea Maintenance" but may include equipment duplication, onboard radio, and shore maintenance.

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Medical evacuation considerations

Weighing the benefits of medical evacuation for both the patient and rescuers, including potential dangers and risks.

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Radiation casualties code

The code for a distress call including radiation casualties is AN 2 in the International Code of Signals.

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VHF ship antenna

A whip antenna is a suitable antenna for a ship's VHF radio.

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Survival craft additional equipment

Vessels over 500 gross tons require additional survival craft equipment, such as the ability to communicate with all shore stations, and not necessarily more portable VHF radios.

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SART radar display

A SART signal appears on a radar screen as a specific signal or blip, but more detail about the appearance is not provided or requested in the input.

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GMDSS Obligatory Requirements

Specific rules for vessels operating internationally, often tied to size and international travel capabilities.

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Distress Phase

Emergency phase declared when a ship or person is in grave danger and needs immediate help.

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Annual GMDSS Station Inspection

Routine checks to ensure all GMDSS equipment and documentation are operational and up-to-date to maintain safety standards.

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Weather Advisory (Inmarsat-C/NAVTEX)

Forecasts of weather conditions, duration, and geographical areas affected, received by the ship's master.

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Required GMDSS Functions

Essential communication tasks, including ship-to-ship, ship-to-shore, and safety-related communications, crucial for maritime safety.

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NAVAREA for Philippines

The specific region in the international NAVTEX system that covers the Philippines.

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Sea Area A3

A defined area of the ocean in the GMDSS system.

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Study Notes

GOC Competence 1

  • SAR Standby Time: 96 hours
  • Sea Area A2 Watchkeeping Frequencies: 2182.0 kHz, 2187.5 kHz, 2174.5 kHz, 2738.0 kHz
  • Vessel Called, Identity Unknown: Wait two minutes, then reply: "Station calling JERINEB, repeat your call."
  • Ship Reporting System Adoption Criteria: To increase the safety and efficiency of marine environment and navigation; to ensure protection of the seafarer's right
  • SOLAS Chapter IV Regulation for Radio Incidents: Regulation 16

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