One solution
Alphatron Marine is a world-leading supplier of integrated bridge solutions and represents many dominant brands within the maritime industry. In addition, Alphatron Marine is a subsidiary of JRC, one of the most renowned manufacturers in the field of navigation and communication equipment. Together with Alphatron Marine's many years of experience as a branded autonomous system integrator, this is an ideal match within the deepsea market to provide the customer with one total solution.
We have a reputation for listening carefully to your needs and focus on developing reliable, quality products and solutions that exceed your requirements. Our intensive cooperation with specialized shipyards and shipowners forms the basis of our product line created by our Alphatron Marine R&D team. In order to stay up-to-date with the ever-changing maritime developments and regulations, we continuously and extensively invest in both product development and product management. This ensures that your seagoing vessels are prepared for future needs and the safety of your crew and cargo can be guaranteed.
Hand-on service
Our shipping department understands that minimizing delays in your business operations is of great importance. We are happy to help you make your operation a success throughout the entire life cycle of our products. With our worldwide network, we offer unparalleled service support 24/7, a stock of spare parts that are immediately available to you, personalized maintenance contracts, and fast turnaround times for our own equipment and that of leading manufacturers. We are your global partner for onboard and onshore service.
The Global Maritime Distress and Safety System (GMDSS) is a worldwide emergency and safety system for shipping at sea. According to the GMDSS, a ship that complies with these requirements must be able to contact a shore station, receive weather reports and maintain ship-to-ship communications, at any time and from any location. GMDSS is currently mandatory for commercial shipping, but for safety reasons, it is also strongly recommended for pleasure craft.
The GMDSS requirements depend on the sea area in which your vessel operates. If you operate up to approximately 20 to 30 nautical miles from the coast, this falls within Area A1, where a standard VHF installation with Digital Selective Calling (DSC) is sufficient (for example, JHS-800S). This allows you to contact the coastguard, establish and maintain contact with other vessels, and receive weather reports. Beyond Area A1, up to approximately 150–180 nautical miles from the coast, is Area A2, which is within the range of an MF coast station. Area A3 covers the sea area beyond A1 and A2 but within the coverage of a Recognized Mobile Satellite Service (for example, Inmarsat or approved geostationary/non-geostationary satellite systems such as Iridium), roughly corresponding to the area between 70° north latitude and 70° south latitude. This coverage is effectively worldwide, with the exception of areas near the North and South Poles. Area A4 refers to the remaining sea areas outside A1, A2 and A3. This essentially covers the polar regions (north and south of approximately 70°–75° latitude), where geostationary satellite coverage does not reach.
Below you will find a brief overview of the minimum equipment requirements for each sea area. Depending on the type of vessel and the operational conditions, additional requirements or exemptions may apply under SOLAS regulations.
Are you unsure which equipment is mandatory for your vessel? Our specialists will be happy to advise you on the appropriate configuration and compliance with the applicable regulations. Please feel free to contact us.
Applicable GMDSS equipment requirements for all ships to which Chapter IV of the SOLAS Convention applies:
GMDSS requirements | A1 | A2 | A3 | A4 |
VHF-radio equipment | ✓1 | ✓1 | ✓1 | ✓1 |
MF-radio equipment | ✓1,5 | ✓1,5 |
| |
MF/HF radio equipment |
|
| ✓1,4,5 | ✓1,5 |
RMSS-SES | ✓1,4 | |||
Float-free EPIRB | ✓ | ✓ | ✓ | ✓ |
RADAR SART or AIS-SART | ✓2 | ✓2 | ✓2 | ✓2 |
VHF Handheld (two-way) | ✓3 | ✓3 | ✓3 | ✓3 |
- 2 sets, including DSC and watch receiver
- Cargo ships between 300 and 500 GT: 1 set. Cargo ships of 500 GT and above and passenger ships: 2 sets.
- Cargo ships between 300 and 500 GT: 2 sets. Cargo ships of 500 GT and above and passenger ships: 3 sets.
- Ships in sea area A3 may choose between duplication with a complete MF/HF transceiver or an SES, where an RMSS is provided with a coverage area equal to or greater than that of the primary RMSS.
- A single MF/HF radio installation may be accepted as either the primary MF radio installation or as a duplicated MF/HF radio installation, as specified in the latest IMO circular relating to GMDSS requirements
The Safety Of Life At Sea (SOLAS) Convention falls under the International Maritime Organization (IMO). SOLAS is regarded as the most important international treaty concerning the safety of seagoing vessels. The main objective of the SOLAS Convention is to specify minimum standards for the construction, equipment, and operation of ships to ensure safety on board. Alphatron Marine has extensive expertise in international regulations concerning your navigation equipment. Do you have any questions? Please feel free to contact the nearest Alphatron Marine office, or use our SOLAS configurator to see which navigation equipment is minimally required on board.
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