EPIRB (emergency beacons), MOB (Man Over Board)

When it comes to safety at sea, you can never be too prepared. EPIRBs and MOBs are essential tools for location and rescue in emergency situations. An EPIRB (Emergency Position Indicating Radio Beacon) is an emergency transmitter that, once activated, sends a distress signal via satellite to the relevant authorities. A MOB (Man Over Board) device is smaller and lighter, often integrated into a life jacket, which signals a person falling overboard via AIS (Automatic Identification System).

The main difference between an EPIRB and a MOB device is the signal range. The EPIRB communicates via satellite, providing global coverage, while the MOB communicates via AIS, which has a limited range (approximately 5-10 nautical miles). However, the MOB is more precise in its location and allows nearby vessels to respond quickly.

Which one should you choose? It depends on your type of sailing. For offshore sailing, an EPIRB is indispensable. For coastal sailing, a MOB device may be sufficient, especially when combined with an onboard man overboard alarm system.

Nautica Basile's Advice

• Regular Checks: Regularly check the battery charge and expiration date.


• Registration: Register your EPIRB with the appropriate authorities with your vessel's details.


• Testing: Perform periodic tests (following the manufacturer's instructions) to ensure the device is functioning correctly.


• Placement: Install the EPIRB in an easily accessible location in case of an emergency.


• Integration: Consider integrating a MOB system with your chartplotter for immediate visualization of the man overboard's position.

FAQ

What is the difference between an EPIRB and a PLB?

An EPIRB (Emergency Position Indicating Radio Beacon) is specifically designed for maritime use and activates automatically when it comes into contact with water. A PLB (Personal Locator Beacon) is a personal device that can be used in any emergency situation, both on land and at sea, and must be activated manually. Both transmit a distress signal via satellite.

How do I register my EPIRB?

EPIRB registration is mandatory and must be done with the relevant maritime authority in your country. Registration allows rescue authorities to identify the vessel and contact the owners in case of an emergency.

What does AIS mean in a MOB device?

AIS (Automatic Identification System) is an automatic identification system used by ships to transmit their position and other information to other vessels and coastal stations. A MOB with integrated AIS transmits an AIS signal in the event of a fall overboard, allowing nearby vessels to quickly locate the person in distress. It's useful to pair it with a waterproof handheld VHF radio.

How much does an EPIRB cost?

The cost of an EPIRB varies depending on the features and functionality. Basic models start from a few hundred euros, while more advanced models with integrated GPS and other features can cost several thousand euros. Also consider purchasing a quality marine knife.

What is the difference between an EPIRB and a PLB?

An EPIRB (Emergency Position Indicating Radio Beacon) is specifically designed for maritime use and activates automatically when it comes into contact with water. A PLB (Personal Locator Beacon) is a personal device that can be used in any emergency situation, both on land and at sea, and must be activated manually. Both transmit a distress signal via satellite.

How do I register my EPIRB?

EPIRB registration is mandatory and must be done with the relevant maritime authority in your country. Registration allows rescue authorities to identify the vessel and contact the owners in case of an emergency.

What does AIS mean in a MOB device?

AIS (Automatic Identification System) is an automatic identification system used by ships to transmit their position and other information to other vessels and coastal stations. A MOB with integrated AIS transmits an AIS signal in the event of a fall overboard, allowing nearby vessels to quickly locate the person in distress. It's useful to pair it with a waterproof handheld VHF radio.

How much does an EPIRB cost?

The cost of an EPIRB varies depending on the features and functionality. Basic models start from a few hundred euros, while more advanced models with integrated GPS and other features can cost several thousand euros. Also consider purchasing a quality marine knife.