- •Maritime Communications
- •Imo smcp 2001
- •Universal Shipborne Automatic Identification System (ais) Transponder 1
- •Digital Selective Calling 3
- •1. (Part 1) maritime communications – introduction
- •1. 1 General
- •1. 2 Technical Information From: http://www.Goals.Com/ClassRm/SailSci/seacom.Htm: Communication at Sea
- •Inmarsat system
- •External communications - Intership Frequencies
- •General
- •1.3 Voice Radiocommunications
- •1.3.1 General
- •False Distress Transmissions
- •1.3.2 Communications Priorities
- •1.4 Operating Procedures – Using imo Standard Phrases (smcp 2001)
- •1.4.1 General
- •1.4.2 Smcp Message Markers
- •1.4.3 Message Checks
- •1.4.4 Some Useful Words and Phrases in Conducting vhf Communications
- •1.4.5 Phonetic Alphabet
- •1.4.6 Numbers
- •1.4.7 Dtg (date, time, utc)
- •1.4.8 Position
- •Longitude zero - three - one degrees two – zero minutes west
- •1.4.9 Courses, distances, speed
- •1.4.11 Standard organizational phrases:
- •1.5 Linguistic structure of marine radiotelephone conversations
- •1.5.1 Introduction
- •2. Exchange of messages
- •1.5.2 Exchange
- •2. (Part 2) conduct of maritime radiotelephone conversations
- •2.1 Introduction
- •1. Initial call
- •5. Switch over procedure
- •9. End procedure
- •This is
- •2.4 Other phrases in conducting exchanges
- •I read you 5 (excellent)
- •Readability 4
- •2.5 Other examples of vhf exchanges:
- •This is
- •2.7 Transcripts of real vhf communications
- •Marlin: I’m just now on Delta Bravo 17*. Over.
- •Ep: Marlin. This is Elbe Pilot. Good evening to you.
- •Communication event No. 4
- •Ep: Marlin. This is Elbe Pilot. Good evening to you.
- •Sea dog: Next port of call will be Hull. Hull. April 14 daybreak. Over.
- •3. (Part 3) distress, urgency and safety procedures
- •1. The distress signal mayday spoken three times,
- •2. The words this is,
- •3. The name and call sign of the vessel in distress spoken three times.
- •19 Persons on board
- •Repetition of a Distress Message
- •I am proceeding to your assistance
- •19 Persons on board
- •In smcp 2001 distress communications (spoken or written, those conducted via vhf, mf, hf or gmdss, etc.), are dealt with in:
- •Part a (External Communications) – chapters dealing with distress communications: a1/1 Distress traffic
- •1 Standard Distress Message
- •3.5.2 (Smcp cont’d)
- •3.5.3 Smcp (cont’d)
- •1 Standard distress message
- •I am on fire after explosion
- •3.5.4 (Smcp cont’d)
- •4. (Part 4) search and rescue communications
- •It is a good practice to log all radio transmissions to and from your station. Also, writing down messages before you send them ensures that all information gets transmitted correctly.
- •Vhf communications in sar operations
- •5. (Part 5) routine communications
- •Universal Shipborne Automatic Identification System (ais) Transponder What is a Universal ais?
- •How Does it Work?
- •Ais Frequencies
- •Imo Carriage Requirement
- •Uscg Response Policy
- •Distress Relays
- •Imo Flowcharts
- •Dsc Forum
- •Dsc Operational Procedures for Ships Contents
- •Introduction - Where these procedures came from
- •Distress Transmission of dsc distress alert
- •Actions on receipt of a distress alert
- •Distress traffic
- •Transmission of a dsc distress relay alert
- •Acknowledgment of a dsc distress relay alert received from a coast station
- •Acknowledgment of a dsc distress relay alert received from another ship
- •Cancellation of an inadvertent distress alert (distress call)
- •Urgency Transmission of urgency messages
- •Announcement:
- •Transmission of the urgency message:
- •Reception of an urgency message
- •Safety Transmission of safety messages
- •Transmission of the safety message:
- •Reception of a safety message
- •Public correspondence dsc channels for public correspondence
- •Transmission of a dsc call for public correspondence to a coast station or another ship
- •Repeating a call
- •Acknowledgment of a received call and preparation for reception of the traffic
- •Reception of acknowledgment and further actions
- •Testing the equipment used for distress and safety
- •Special conditions and procedures for dsc communication on hf General
- •Distress
- •Urgency
- •Public correspondence on hf
- •The First Digit of an mmsi
- •Maritime Identification Digits (mid)
- •Ship Station Identities
- •Group Ship Station Call Identities
- •Coast Station Identities
- •Group Coast Station Call Identities
- •Iamsar Manual: (extract from: http://rofficer.Narod.Ru/docs/iamsar_c.Htm )
- •2.27 Sar Operations Messages
- •International maritime organization
- •1 Introduction
- •2 Distress relays
- •3 All coast stations call
- •4 Authorization
- •5 Flow diagrams
- •Ship Reporting Systems
- •7. 1 Marep/posrep
- •Mandatory ship reporting system in the straits of malacca and singapore
- •Vesterrenden - Western Channel
- •Vessel Traffic Service (vts)
- •7.3 Polrep
- •8. Global Maritime Distress and Safety System (gmdss)
- •Vtmis Glossary of Terms & Abbreviations
- •Video Courses:
MAYDAY
MAYDAY MAYDAY
THIS IS
SEAGULL SEAGULL, SEAGULL
MAYDAY
SEAGULL
HR1225, SEAGULL HR1225, SEAGULL HR1225
POSITION*:
LATITUDE 5-2 DEGREES 1-1 MINUTES NORTH, LONGITUDE 1-2-8 DEGREES
4-0 MINUTES WEST
SHIP
ON FIRE**
REQUIRE
IMMEDIATE ASSISTANCE
ABANDONING
SHIP TO LIFE RAFTS
OVER
1
2
3
4
5
6
7
8
919 Persons on board
* POSITION:
BEARING: 180 DEGREES FROM PRICE ISLAND, MILBANK SOUND,
DISTANCE: 5 NAUTICAL MILES
** NATURE OF DISTRESS, WHAT IS WRONG, REASON OF DISTRESS:
FIRE IN THE ENGINE ROOM / HOLD NO. / ACCOMMODATION / TANK
ENGINE ROOM ON FIRE
EXPLOSION IN TANK NO. … / ENGINE ROOM / BOILER ROOM
I HAVE STRUCK A FLOATING MINE
I HAVE A DANGEROUS / HEAVY LEAK / I HAVE SPRUNG A LEAK IN/ON
… … DUE TO FLOODING / SHIFTING OF CARGO
I AM / WENT AGROUND IN POS. …
I AM MAKING WATER
DANGEROUS LIST TO PORT / STARBOARD SIDE OF … DEGREES
I AM IN DANGER OF CAPSIZING
I AM SINKING IN POS. … / AFTER GROUNDING / COLLISION /
FLOODING / EXPLOSION
COLISION WITH … / I HAVE COLLIDED WITH …; SINKING
I AM NOT UNDER COMMAND IN POS. ..
I AM ADRIFT / DRIFTING NEAR POS. …
I AM / WAS UNDER ATTACK OF PIRATES
I AM ABANDONING VESSEL AFTER COLLISION / FIRE / EXPLOSION
Repetition of a Distress Message
The distress message shall be repeated at intervals by the vessel in distress until an answer is received or until it is no longer feasible to continue, The intervals between repetitions of the distress message shall be sufficiently long to allow time for stations, which have received the message, to reply.
When a vessel in distress receives no answer to its distress call sent on the distress frequency of 156,800 MHz(Channel 16), the distress call and message should be repeated on any other available frequency on which attention might be attracted.
Any station that is not in a position to render assistance but has heard a distress message that has not been immediately acknowledged, after acknowledging receipt, the station shall take all possible steps to attract the attention of other stations that are in a position to render assistance.
In addition, all necessary steps shall be taken to notify the Coast Guard or appropriate search and rescue authorities of the situation.
Action by Station in Distress
When a vessel is threatened by grave and imminent danger, and requires immediate assistance, the person in command should direct appropriate action as follows:
1. transmit the distress call,
2. transmit the distress message,
3. listen for acknowledgement of receipt,
4. exchange further distress traffic as applicable,
5. turn on automatic emergency equipment (Emergency Position Indicating Radio Beacon - EPIRB)
Action by Stations Other than the Station in Distress
A station becoming aware that a ship station is in distress should transmit the distress message when:
1. the station in distress is not in a position to transmit the message, or
2. the person in command of the station that intervenes believes that further help is necessary.
When a distress message is received and it is known that the vessel in distress is not in the immediate vicinity, sufficient time should be allowed before the distress message is acknowleged. This will permit stations nearer to the station in distress to reply.
3.2.2. Acknowledgement of Receipt of a Distress Message (+Assistance Message)
The acknowledgement of receipt of a distress message shall be given in the following form:
1. the distress signal MAYDAY,
2. the call sign of the station in distress (three times),
3. the words THIS IS,
4. the call sign of the station acknowledging receipt (three times),
5. RECEIVED MAYDAY,
6. MY POSITION IS...,
7. PROCEEDING TO RENDER ASSISTANCE,
8. estimated time of arrival,
9. OVER.
Acknowledgement of Receipt of a Distress Message (Example):
MAYDAY
SEAGULL
HR1225, SEAGULL HR1225, SEAGULL HR1225
THIS IS
HAPPY PRINCE
BS432, HAPPY PRINCE BS432, HAPPY PRINCE BS432
MAYDAY
RECEIVED
OVER
3.2.3. Assistance Information Message
MAYDAY
SEAGULL
HR1225, SEAGULL HR1225, SEAGULL HR1225
THIS IS
HAPPY
PRINCE BS4321 POSITION:
LATITUDE: 5-0 DEGREES 2-2 MINUTES NORTH; LONGITUDE: 0-3-9 DEGREES
1-5 MINUTES WEST
I
AM PROCEEDING TO YOUR ASSISTANCE SPEED:
2-1 KNOTS ETA:
1-8 –3 0 UTC
OVER
OR:
WE ARE 2 TO 3 MILES AWAY FROM YOU
I AM COMING TO YOUR ASSISTANCE
I AM PROCEEDING TO YOUR CO-ORDINATES
WE SHOULD ARRIVE WITHIN A HALF HOUR
More usually, the Acknowledgement and Assistance messages will be merged into one if the ship acknowledging the Initial Distress Message is able to render assistance: