Quick Answer
The use of 406 MHz beacons is regulated by the International Telecommunication Union (ITU) and the Federal Communications Commission (FCC) in the United States, with specific requirements and guidelines outlined in the Cospas-Sarsat system and the FCC's Part 80 regulations.
Regulatory Framework
The Cospas-Sarsat system is a global satellite-based search and rescue system that uses 406 MHz beacons to locate people in distress. The system relies on a network of satellites and ground stations to detect and locate distress signals. In the United States, the FCC’s Part 80 regulations govern the use of emergency position-indicating radio beacons (EPIRBs) and personal locator beacons (PLBs), which operate on the 406 MHz frequency band.
Technical Requirements
To comply with Cospas-Sarsat and FCC regulations, 406 MHz beacons must meet specific technical requirements, including a minimum signal strength of -20 dBW at 1,000 km (621 miles) from the satellite. The beacons must also transmit a unique identifier, known as the “hex code,” which is used to identify the beacon and its owner. Additionally, the beacons must be able to transmit a distress signal for at least 24 hours on a single battery charge.
Registration and Deployment
To be effective, 406 MHz beacons must be registered with the National Oceanic and Atmospheric Administration (NOAA) before deployment. The registration process involves providing identifying information, such as the beacon’s hex code and owner contact information. Once registered, the beacon can be deployed in a vessel or on a person, and will be able to transmit a distress signal if activated. It’s also essential to ensure the beacon is properly maintained, tested, and updated to ensure it remains effective in case of an emergency.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.