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Linglis OOW Oral prep study, HIGH RISK questions > GMDSS > Flashcards

GMDSS Flashcards

1
Q

What are the MF frequencies for:
1. DSC alerting/ RT distress
2. Routine ship to shore DSC calling
3. Shore to Ship routine DSC calling
4. Ship to Ship Routine DSC calling
5. R/T Ship to Ship (Securite)

A
  1. 2187.5/2182 (R/T)
  2. 2189.5
  3. 2177
  4. 2177
  5. 2048
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2
Q

What are the HF DSC frequencies for Distress Alerting, DSC and R/T

A

4MHz
6MHz
8414.5 KHz (preferred DSC)
8291 KHz (preferred R/T)
12 MHz
16 MHz

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3
Q

In what publication do we find HF stations for Alerting/calling/announcements?

A

BPG ‘A’checklist
IAMSAR Vol 3
ALRS Vol 5
ALRS vol 1

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4
Q

What is the primary VHF inter ship routine channel/communications between Ships and Aircraft

A

Ch 06

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5
Q

What is the ship-ship safety of navigation channel

A

Ch 13

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6
Q

Satellite Special access code 32

A

what shall we do?
Medical Advice

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7
Q

Satellite Special access code 38

A

Evacuate
Medical Assistance

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8
Q

Satellite Special access code 39

A

999 Coastguard
Maritime assistance (example, oil spill)

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9
Q

Satellite Special access code 41

A

Rain and sun
Weather obvs

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10
Q

Satellite Special access code 42

A

It might hurt you!
Navigational warning

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11
Q

Satellite Special access code 43

A

Where are we?
AMVER or ships positions reports

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12
Q

MMSI codes:
0
00
4
7
970
111

A

0 Group call
00 coast station
Inmarsat C
Inmarsat FBB
AIS sart
SAR aircraft

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13
Q

MSI frequencies
518kHz
490kHz
4209.5kHz
1.5/1.6GHz

A

Navtex international (english)
Navtex local language
Navtex tropical
Inmarsat and EGC Safety Net

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14
Q

Frequencies for:
EPIRB Alerting
EPIRB Homing
SART

A

406 MHz (All sea areas)
121.5 MHz
9-10 GHz (x band 3cm)

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15
Q

Maximum power output for:
VHF
MF
HF

A

25 W
400 W
1500 W (1.5Kw)
Always use the minimum power necessary for RELIABLE communications

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16
Q

Why do we not call between ships on duplex?

A

Ship stations cannot hear duplex transmissions

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17
Q

How long do we wait between routine calls on VHF?

A

Call-2 mins-call-2mins-call-3mins

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18
Q

The four inter-ship routine VHF channels

A

06 Primary
08 Secondary
72
77

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19
Q

On board communication VHF channels

A

15/17

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20
Q

Who does GMDSS apply to

A

> 300 GT, on an international voyage
<300GT, carrying 12 or more passengers

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21
Q

Sea area operation requirements

A
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22
Q

Daily tests

A

Test DSC internally without radiating signal

Check battery voltage, top up electrolyte if needed

Check printers have adequate supply of paper

Log checked by Master

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23
Q

Weekly tests

A

Run emergency power supply if other than battery (generator)
test of DSC equipment by test call to a CS (VHF/MF/HF)
Test of Handheld Emergency GMDSS VHF units

24
Q

Monthly tests

A

TEST EPIRB and SART
Check EPIRB and SART for security and damage

Performance verification test of Sat C

Inspect battery system, boxes, framework, connections, SG check
Comparison on and off load
Inspect antennas for damage

25
Documents to be carried by GMDSS compliant vessels
Radio log book Ships license Certificates of radio operators AMLRS vol 1-6 ITU List of Ships Stations and Maritime Service Identity Assignments ITU list of Coast Stations and Special Service Stations Copy of the Post Office Act 1884
26
Distress MESSAGE Format
Mayday Identity (name, Call Sign, MMSI) Position Danger (nature) Assistance Number of Persons Information (any other information) Over Numbers are always said in the format TWO-FOUR, not Twenty Four
27
When may a station transmit a Distress Relay Alert
After receiving a distress alert that has not been acknowledged within 5 minutes When a vessel in distress is unable to make the alert themself When the controlling station or MRCC decides further assistance is required
28
Distress Alert Relay format (Call and Message)
Mayday relay x 3 All Stations/CS x 3 This is Name x 3 (own vessel) Call Sign MMSI Mayday x1 Name + Callsign +MMSI (vessel in danger) Position Danger (nature) Assistance required Number of persons Information (other) Over
29
How would a CS alert ships to a distress in their area? Far from their area?
DSC Mayday alert relay to: All ships Group of ships Geographical Area Specific Vessel Distress alert relay through satellite, EGC through Inmarsat C
30
In Acknowledging VHF/MF DSC distress Area A1-A2 you would:
Wait a short period to allow MRCC to do so
31
Acknowledging VHF/MF DCS Distress Area A3-A4 In the vicinity of the distress
Listen to message, Acknowledge Immediately by R/T and inform an MRCC
32
Acknowledging HF DSC?
do not do by any means whatsoever, set watch to R/T frequency, if no acknowledgement by MRCC or no subsequent communications, relay the distress alert by any means (HF or Satellite)
33
False DSC alert Procedure
1. Let Alert Finish 2. Stop it from repeating 3. Cancel alert by R/t giving your MMSI number 4. Inform an MRCC or CS by any means necessary
34
Where should we address MF/HF DSC distress alert relays, urgency, safety announcements?
Geographical area or specific group or individual station
35
DSC CALLS should be repeated when? And if not acknowledged a second time?
After 5 minutes After 15 Minutes
36
Direct/Space wave Ground wave Sky wave
VHF MF HF
37
What is contained in: ALRS Vol. 1
Coast Radio Stations (public correspondence)
38
What is contained in: ALRS Vol 5.
Global Maritime Distress and Safety System
39
What is contained in: ALRS Vol. 6
Pilot Services and Port Operations
40
ITU documents
Interco (international code of signals) List of ship stations List of special services and radio determination stations Manual for the Maritime Mobile Service and Mobile Satellite Service
41
Which Communications equipment uses printers
NAVTEX DSC SAT C
42
What are the NAVTEX permanently selected messages and RECOMMENDED messages to select
A. Navigational Warnings B. Meteorological Warnings D. SAR Information E. Meteorological Forecasts L. Additional Navigational Services
43
Letters on NAVTEX controller functions F D S P
Forward paper Dimmer Silence alarm Power
44
What is an NCS
network co-ordination station Responsible for overall frequency, line allocation and traffic management of a region for the Maritime Mobile Satellite Service (MMSS)
45
What is GMDSS? (This could also be considered to be the contents of ALRS Vol 5)
An internationally agreed upon set of standards and procedures, to allow for: Alerting (inc. Position) SAR co-ordination Locating (homing) Maritime Safety Information Broadcasts General Communications Bridge-Bridge Communications
46
What is NAVTEX?
A tech space receiver, that receives MSI through the MF radio band width.
47
What is DSC?
Digital Selective calling, an automatic means of sending alerts/announcements/calling
48
A fully charged Battery Should read how many volts per cell? Therefore, a 24 v battery should read:
24v battery has 12 cells 2.25v per cell 27 volts
49
Minimum Carriage Requirements (to meet with SOLAS)
VHF radio station capable of transmitting DSC on 70, and RT on 16,13, and 06 One SART if <500gt, Two SARTS if >500gt TWO Portable VHF transceivers if <500gt, THREE if >500gt NAVTEX when operating in NAVTEX areas Inmarsat C EGC receiver, when in areas not covered by NAVTEX and HF
50
Carriage requirements based on Areas of Operation:
A1- 20-30Nm VHF and DSC A2 - Approx 100nm MF, VHF DSC A3, Coverage of INMARSAT geostationary satellites VHF, MF, DSC and INMARSAT c A4, 70°N and 70° S VHF, MF, HF, DSC, INMARSAT c
51
What are the SES stations for Inmarsat C
Atlantic Ocean Region West Atlantic Ocean Region East Indian Ocean Pacific Ocean
52
Three ways of ensuring Availability of Ship Station Equipment:
At sea electronic Maintenance Shore based Maintenance Certificate Duplication of Equipment
53
Actions on encountering flares:
Take a bearing of flares Mayday relay Inform Master Proceed at best speed on instruction from Master Post additional Lookouts with Binoculars X band radar on and tuned for SART RB and medical crew ready Consult IAMSAR Vol 3, ships SMS and contingency guides Log events
54
What is an MMSI
A Maritime Mobile Service Identity Number
55
What is the ITU
International Telecommunications Union

Linglis OOW Oral prep study, HIGH RISK questions (39 decks)

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