What kind of signals do PLBs emit?

Personal Locator Beacons (PLBs) are specifically designed to emit satellite communication signals. When activated, these devices transmit a distress signal that is picked up by satellites in the Global Navigation Satellite System. This signal contains crucial information, such as the user's location and a unique identification code, allowing rescue services to quickly pinpoint the individual's whereabouts and respond accordingly.

The effectiveness of PLBs lies in their ability to connect directly to a network of satellites, which enhances their range and reliability compared to other types of distress signals. Unlike optical or acoustic signals that depend on line-of-sight or proximity to be effective, satellite communication signals can be transmitted over vast distances, even in remote areas where traditional communication methods may fail. This makes PLBs an essential tool for outdoor adventurers and individuals operating in isolated environments.