All BoatU.S. Foundation EPIRBs are the 406 Mhz model and uses the COSPAS/SARSAT system of polar orbiting satellites. The advantages of a 406 EPIRB are worldwide coverage, position location accuracy, a reliable transmitted signal, an encoded message that identifies the distressed vessel, and a faster response time. For long offshore trips, a 406 EPIRB is the fashion to go. A GPS enabled 406 EPIRB'due south accuracy is roughly inside 100 yards of the initial alert which is a vast improvement from the old 121.5 MHz EPIRBs.

Once registered and in the event of an activation, the unique encoded digital message is received by the satellites are and so transmitted back to ground-based search and rescue authorities. This betoken provides them with information to aid in the search: who you are, your boat blazon and size, where you are, and other important data, including emergency contact information. The encoded indicate also performs the of import function of circumventing false alarms, which was a frequent trouble with the older style 121.five EPIRB.

  • Boater in distress activates 406 EPIRB.
  • EPIRB'due south repeating SOS point is detected by earth-orbiting satellites.
  • Signal is forwarded to basis station for verification.
  • Basis station notifies cardinal command (MCC) to initiate search and rescue.
  • MCC notifies the Coast Guard or the Air Force Rescue Coordination Center (RCC) nearest to the boater's location.
  • The RCC calls BoatU.S. for vessel clarification prior to leaving base. RCC dispatches applicable search and rescue resources.

How epirbs work graphic

Beginning January 1, 2007, both 121.v and 243 MHz Emergency Position Indicating Radio Beacons (EPIRBs) are prohibited from utilize in both commercial and recreational watercraft. Boaters wishing to have an emergency rescue beacon aboard their vessel must have a digital 406 MHz model.

The January one, 2007, date to terminate using 121.5 MHz EPIRBs is in preparation for Feb ane, 2009, when satellite processing of distress signals from all 121.five/243 MHz beacons will cease. Post-obit this termination date, only the 406 MHz beacons will be detected by the International Cospas-Sarsat Satellite System which provides distress warning and location data for search and rescue operations effectually the world.

The regulation applies to all Class A, B, and Due south 121.v/243 MHz EPIRBs. It does non affect 121.5/243 MHz homo overboard devices which are designed to piece of work directly with a base alerting unit of measurement merely and not with the satellite system.

This alter, in big part, was brought nearly by the unreliability of the 121.5/243 MHz beacons in an emergency state of affairs. Data reveals that with a 121.5 MHz beacon, simply one warning out of every 50 is a genuine distress situation. This has a meaning event on expending the express resources of search and rescue personnel and platforms. With 406 MHz beacons, false alerts take been reduced significantly, and, when properly registered, can ordinarily exist resolved with a telephone telephone call to the buoy owner. Consequently, existent alerts can receive the attending they deserve.

Ocean Signal RescueMe GPS-enabled (aka GPIRB)

A GPS enabled EPIRB or GPIRB is a 406 Mhz beacon that provides provides instant positioning information when the unit is activated in conjunction with a GPS. The GPS is either an internal component of the EPIRB or connected to the EPIRB via an interface. These represent the electric current country-of-the-art in 406Mhz EPIRBs. The location of a transmitting 406 buoy with GPS can exist determined within approximately 100m (about 330 feet) of the first satellite laissez passer!

ACR ResQLink 406 MHz Personal Locator Beacon

Personal Locator Beacons, or PLBs are meaty emergency equipment that also relies on the 406Mhz satellite signal. Weighing about a pound, these units can besides have GPS accuracy. Battery life on these units is but required to transmit for 24 hours and they are not water activated. The compact design of these units makes them ideal for attaching to a person for outdoor activities. However, they are more complicated to apply and practise not offer the prophylactic features of our 406 EPIRBs. Nosotros currently offer PLBs for rent.