GME MT400 Epirb Manually activated 406/121 mhz beacon.Includes quick release bracket.Rugged,lighweight easy to mount compact design. The GME MT400 406 MHz EPIRB is the culmination of three years of extensive R & D by GME engineers. The end result is a radical new design concept that is not only a significant improvement on existing beacon performance, but dramatically slashes the cost of 406 MHz EPIRB ownership. Advantages of a 406 MHZ EPIRB over the older analogue EPIRBs include world wide coverage, position location accuracy to within 5 kms and a more stable transmitted signal resulting in faster response time. Most importantly, the addition of a unique digitally coded message provides Search and Rescue authorities with vital information including the country of beacon registration and identification of the vessel in distress thus greatly reducing the incidence of false alerts and unneccesary deployment of valuable rescue resources. An auxiliary 121.5Mhz homing transmitter is included in the MT400 to enable suitable equipped Search and Rescue forces to home on the distress beacon.