Quick Answer
Older PLB models may not meet current safety standards due to limited battery life, outdated satellite systems, and inadequate performance in high-interference environments.
EPIRB and PLB Regulations
The International Maritime Organization (IMO) and the International Civil Aviation Organization (ICAO) regulate Emergency Position-Indicating Radio Beacons (EPIRBs) and Personal Locator Beacons (PLBs). In 2019, the IMO updated its regulations to require EPIRBs to use the 406 MHz frequency band and have a minimum battery life of 48 hours. The US Federal Communications Commission (FCC) also regulates PLBs, requiring a minimum battery life of 24 hours and a maximum delay of 30 seconds for a signal to be transmitted.
PLB Performance Standards
Older PLBs may not meet current performance standards due to limitations in satellite systems and interference. The Global Positioning System (GPS) and the Global Navigation Satellite System (GLONASS) are the primary satellite systems used for PLB positioning. However, GLONASS has a higher level of interference in high-traffic areas, such as urban environments, which may affect PLB performance. Modern PLBs use advanced signal processing and filtering techniques to mitigate interference and improve accuracy.
Upgrading and Replacement
If you are using an older PLB model, it is essential to check its certification and compliance with current regulations and performance standards. If your PLB is no longer certified or has exceeded its lifespan, it is recommended to upgrade to a newer model that meets current safety standards. This includes checking the FCC’s database for certified PLBs and consulting with manufacturers or authorized dealers for guidance on upgrading or replacing your existing PLB.
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