SOLAS Regulations for Maritime Radio Communication

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Questions and Answers

What is the minimum number of people on board a ship that requires it to be fitted with a radio telegraph installation?

50 (correct)

100

200

What frequency was set for radio watch by SOLAS-48?

500 kHz

156.8 MHz

2182 kHz (correct)

490 kHz

What is the frequency used by satellite EPIRBs?

2182 kHz

500 kHz

406-406.1 MHz (correct)

156.8 MHz

What is the purpose of the frequency 156.650 MHz (VHF-CH 13)?

Messages on the safety of navigation between ships Signup and view all the answers

What is the distance within which ships could only count on the assistance of vessels?

100-150 miles Signup and view all the answers

What is the frequency used for radio-telex mode (NBDP)?

2 174.5 kHz Signup and view all the answers

What is the purpose of the frequency 518 kHz (Narrow Band Letter Printing)?

Information about the safety of navigation Signup and view all the answers

According to the Radio Regulations, what is prohibited if it causes harmful interference?

Any emission Signup and view all the answers

What type of search pattern is most effective when the position is accurately known and the search area is small?

Sector search (VS) Signup and view all the answers

What is the primary purpose of the Search and Rescue Transponder (SART)?

To help locate the position of the vessel in case it goes off track Signup and view all the answers

What is the minimum number of SARTs required to be carried on a passenger ship?

At least 02 Signup and view all the answers

What is the code used to request medical advice?

Code 32 Signup and view all the answers

What is the purpose of the WHO International Medical Guide for Ships?

To provide treatment of any ill or injured person on board Signup and view all the answers

What type of search pattern is used around mountains and in valleys?

Contour search (OS) Signup and view all the answers

What is the primary purpose of the CREEPING LINE SEARCH COORDINATED (CSC)?

To allow aircraft to do most of the searching Signup and view all the answers

What is the required information to be provided when requesting assistance regarding the patient?

Name, Rank, Sex, Date of Birth, and Nationality Signup and view all the answers

Study Notes

International Conference on Safety of Life at Sea (SOLAS)

SOLAS 1914: Ships with more than 50 people on board must be fitted with a radio telegraph installation
SOLAS-48: Set radio watch at a frequency of 2182 kHz
SOLAS-74: Made it obligatory for all ships at sea to maintain a continuous radio listening watch (Frequency: 156.8mHz or 2182kHz)

Global Maritime Distress and Safety System (GMDSS)

Introduced in 1988
Replaced Morse code with Narrow Band Direct Printing (NBDP)
DSC (Digital Selective Calling) mode revokes the need for continuous radio listening watch
International Telecommunication Union (ITU) approves frequencies used in GMDSS

Frequencies and Modes

VHF-CH16 (156.8 MHz): Radio-telephone mode for voice communication
VHF-CH70 (156.525 MHz): DSC mode
2 174.5 kHz: Radio-telex mode (NBDP)
156.8 MHz (VHF-CH16): Direct communication during search and rescue operations
518 kHz (Narrow Band Letter Printing): Information about safety of navigation (MSI)
490 kHz: National frequency
156.650 MHz (VHF-CH 13): Messages on safety of navigation between ships
406-406.1 MHz: Used exclusively by satellite EPIRBs
161.975 MHz (VHF-CH AIS 1) and 162.025 MHz (VHF-CH AIS 2): Search and Rescue transmitters (AIS-SART)
9 200-9 500 MHz: Used by SARTS (radar transponders)

Radio Regulations

Any emission is prohibited if it causes harmful interference

Ship Reporting Systems and Ship Reporting Requirements

General Principles
Guidelines for Reporting Incidents Involving Dangerous Goods
Guidelines for Reporting Incidents Involving Harmful Substances and/or Marine Pollutants

Mayday and Securité

MAYDAY: Grave and imminent danger
Securité: Regularly made by coast stations

International Aeronautical and Maritime Search and Rescue (IAMSAR)

Expanding Square Search: Most effective when location is known within relatively close limits
Sector search (VS): Most effective when position is accurately known and the search area is small
Track line search (TS): Vessel has disappeared without a trace along a known route
Parallel track search (PS): Search a large area when location is uncertain
Contour search (OS): Used around mountains and in valleys
Coordinated vessel-aircraft search pattern: Only if there is an OSC present to give direction

WHO International Medical Guide for Ships

Treatment of any ill or injured person on board

Information Required when Requesting Assistance

Vessel's Name, Call sign, and Flag
Position, Port of Departure, and Destination, ETA
Patient's Name, Rank, Sex, Date of Birth, and Nationality
Patient's Symptoms, Location of pain, associated symptoms
Other medical problems with special reference to Drug or other allergies, Chronic illness, and their treatment

5 Points To Radio Medical Advice

1. DO NOT PANIC
1. QUICK AND EFFICIENT ACTION
1. OBTAINING ADVISE THROUGH INMARSAT
1. OBTAINING ADVICE THROUGH R/T IN VHF, MF/HF
1. CONTENT OF MESSAGE

Search and Rescue Transponder (SART)

Helps in locating the position of the vessel in case it goes off track
Carriage requirement: Passenger ship- at least 02, Cargo ship 500 GT and above- at least 02, Cargo ship 300 GT and above- at least 01, 1 on each survival craft
Battery requirement: Operational life in standby condition

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Description

This quiz covers the International Conference on Safety of Life at Sea (SOLAS) regulations related to radio communication on ships, including frequency requirements and distance ranges.