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What are the 4 sea areas of GMDSS?
SEA AREAS. The GMDSS operates over 4 sea areas of coverage from shore to ship. The 4 sea areas are classified as: A1, A2, A3 and A4.
What are the GMDSS equipment required for each sea areas?
Generally, all GMDSS ships must carry a 406 MHz EPIRB, a VHF radio capable of transmitting and receiving DSC and radiotelephony, a NAVTEX receiver, a SART, and two-way VHF portable radios.
What is sea area A1 A2 A3 A4?
There are 4 international sea areas in the GMDSS: sea area A1: within range of shore-based VHF DSC coast station (40 nautical miles) sea area A2: within range of shore-based MF DSC coast station (40 to 150 nautical miles) sea area A4: the remaining areas, covering the polar regions.
What are the sea areas coverage under GMDSS what equipments to be used in each areas of coverage?
GMDSS and its Uses
| AREA | RANGE | EQUIPMENT |
|---|---|---|
| A1 | 20 to 50 M | VHF DSC |
| A2 | 50 to 400 M | VHF + MF |
| A3 | 70° N to 70° S | VHF + MF + One INMARSAT |
| A4 | Above 70° N or S | HF + MF + VHF |
What are the 7 elements of GMDSS?
Components of GMDSS
- Emergency position-indicating radio beacon (EPIRB)
- NAVTEX.
- Satellite.
- High frequency.
- Search and rescue locating device.
- Digital selective calling.
- Power supply requirements.
- GMDSS radio equipment required for U.S. coastal voyages.
What equipment is in Sea Area 3?
Sea Area A3: Here a complete VHF radio and either a MF/HF radio or INMARSAT station is required. This area covers 70-degrees North Latitude and 70-degrees South Latitude.
What are the GMDSS equipments?
The main types of equipment used in GMDSS are:
- Emergency position-indicating radio beacon (EPIRB)
- NAVTEX.
- Satellite.
- High frequency.
- Search and rescue locating device.
- Digital selective calling.
- Power supply requirements.
- GMDSS radio equipment required for U.S. coastal voyages.
What is the GMDSS equipment on sea area A3?
How is Epirb activated?
Activating a float-free EPIRB Activate the EPIRB by pressing the ON switch or by placing it in water. Option 2: Water activation – This will happen automatically when the vessel capsizes.
What is Sea area?
Sea area A1 is that sea area which is within a circle of radius A nautical miles over which the radio propagation path lies substantially over water.
What is LRIT equipment?
The Long-Range Identification and Tracking (LRIT) system provides for the global identification and tracking of ships to enhance security of shipping and for the purposes of safety and marine environment protection.
How much does a EPIRB cost?
To buy, an EPIRB costs from about $200 (from Anaconda). EPIRBhire sells an ex-hire GME MT600G Boat EPIRB for $245. EPIRB registration is free. Prices vary though, so do your research and find the best EPIRB for you and your needs.
What kind of equipment does a GMDSS ship need?
Every GMDSS ship is required to carry the following minimum equipment (as defined by SOLAS Chapter IV, regulation 7): A 406 MHz EPIRB. Vessels trading exclusively in sea area A1 may fit a VHF DSC EPIRB in lieu of a 406 MHz EPIRB).
How does GMDSS work in time of emergency?
GMDSS equipment, on the other hand, provides straightforward operation in time of emergency simply by pressing the distress button on the VHF, MF/HF DSC or Inmarsat MES. If this cannot be done, a float-free EPIRB can transmit a distress alert. 1 2 Sea Area
How are the sea areas defined in GMDSS?
GMDSS defines four sea areas based upon the location and capability of onshore-based communication facilities. The definition of the Sea Areas for GMDSS is outlined below. Please refer to the illustrated layout of the European area indicating the sea areas and coastal stations for quick reference.
Is the SAR coordinator on a GMDSS vessel?
Since all GMDSS vessels carry standardized equipment for the Sea Area, and they are operating in the same frequencies, the compatibility between the SAR coordinator at a coastal station and a vessel is assured.