Transcript INMARSAT Ship Earth Station (SES)

INMARSAT-FLEET 77
In response to the ever increasing need for
computer-based, cost effective and secure
communications system at sea, Inmarsat has
developed advance computer solutions that deliver
content-rich data and communications solutions to
ships of all sizes: INMARSAT Fleet.
Fleet F77
Fleet F55
Fleet F33
System Description
The Fleet F77 system is based on digital
technology
Can supply digital communication via telephony,
fax, mobile ISDN and Mobile Packed Data
Service (MPDS)
Fleet 77 Inmarsat Mobile Number
Format:
T1 T2 X1 X2 X3 X4 X5 X6 X7
T1 T2 – (60 for Telex) (76 for Phone)
Eg.
602420510 (telex IMN)
762420510 (telephone IMN)
INMARSAT-C
System Operation
The Inmarsat-C system provides store and
forward messaging, distress alerting, EGC
broadcasting and data reporting, polling and
SCADA.
Lacks the ability of voice communication but
does provide a means of sending text messages
and data communication.
Inmarsat Mobile Number
Format:
4 MID XXX ZZ
Eg.
425705310
Sending a Distress call
If the ship is threatened by grave and imminent
danger, one can use Inmarsat-C SES to send a
distress alert. This alert is routed automatically
through a LES to an associated Rescue Coordination Centre (RCC).
Distress alert by remote distress button
If your terminal is fitted with a dedicated
distress button (or a combination of buttons),
you may send a distress alert simply by pressing
the button(s) and holding down for the required
number of seconds (typically five seconds).
Distress alert by terminal menus
Access the distress alert menu on your MES terminal.
Fill in the selections on the menu presented, entering
first your vessel’s position
Select the nature of the distress from the list provided.
Select an LES, preferably the one nearest to your vessel
within your ocean region.
Send the distress alert.
Wait for an acknowledgment from the LES. If no reply
within 5 minutes, repeat the procedure.
Store-and-forward Messaging Services
Telex
Fax
Messages to and from a computer
Ship-to-ship message service
E-mail
Data Reporting, Polling and SCADA
Data reporting allows SES to send short data reports
Typical ship report:
Sailing plan
Position report
Deviation report
Arrival Report
Departure report
INMARSAT-M/B
Introduction
Inmarsat B was introduced in 1994
High quality telephone, fax, telex and data
communications
Single and Multi-channel
Inmarsat M was introduced in 1992
Global telephone communication, fax and data
communication
Inmarsat Mobile Number
Format:
Inmarsat- B
3 MID XXX ZZ
Inmarsat- M
6 MID XXX ZZ
Eg.
325705310
(Inmarsat B)
625705310
(Inmarsat M)
Sending Distress Message by Telex
1. Press and hold down the Distress ‘push-button’
for at least 6 seconds
2. Wait for automatic connection to the RCC.
3. Type your distress message using the following format:
MAYDAY
Ship’s name and callsign
IMN and Ocean Region Satellite
POSITION
The NATURE OF DISTRESS
Type of ASSISTANCE REQUIRED
OTHER INFORMATION to help rescue units
4. Send the message to the RCC.
MAYDAY
MV BELLA CALLSIGN LBTX1
IMN 325705310 AOR-E
22.45N, 032.23W
ENGINE ROOM FIRE
NEED IMMEDIATE ASSISTANCE
19 CREW. 2 MISSING.
Sending Distress Message by Telephone
1. Lift the telephone handset and listen for the dialling tone.
2. Press and hold down the Distress ‘push-button’ for at least
6 seconds.
3. Press the # key to initiate call.
4. When the RCC operator answers, speak clearly and give the
following message:
MAYDAY
This is
Ship’s name and callsign
IMN and Ocean Region Satellite
POSITION
The NATURE OF DISTRESS
Type of ASSISTANCE REQUIRED
OTHER INFORMATION to help rescue units
Making a Telephone Call
Sending a fax
Making a Telex Call
Telex
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