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PLB Or EPIRB: Which Is Best For Ocean Adventures?

April 5, 2026

Quick Answer

For ocean adventures, an EPIRB is the better choice due to its ability to send a distress signal directly to emergency responders, whereas a PLB requires relaying the signal through a satellite network.

Understanding the Technology

Both PLBs and EPIRBs use satellite technology to send distress signals to emergency responders. However, EPIRBs are more effective in emergency situations because they can send a signal directly to search and rescue (SAR) teams, bypassing the need for relay satellites. This can be crucial in situations where every minute counts.

Choosing the Right Device

When selecting a device, consider the following factors: battery life, signal strength, and compatibility with your vessel. EPIRBs typically have a longer battery life, often ranging from 24 to 48 hours, whereas PLBs usually last around 8-14 hours. It’s also essential to choose a device that is certified by the relevant authorities, such as the International Maritime Organization (IMO) or the Federal Communications Commission (FCC).

Operational Considerations

EPIRBs are typically activated manually, whereas PLBs can be activated automatically in extreme situations. However, EPIRBs often require a manual activation process, which should be clearly understood by the crew. Additionally, EPIRBs are usually more expensive than PLBs, but their added functionality and reliability make them a worthwhile investment for long-distance ocean adventures.

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