This Recommendation details the technical characteristics of an emergency position-indicating radio beacon. This beacon operates in the VHF band, in allocations exclusive to the maritime mobile service, and uses the digital selective calling (DSC) system as detailed in Recommendation ITU-R M.493. This radio beacon will be referred to by the acronym: VHF EPIRB.
ITU-R M.693-1-2012 Referenced Document
ITU-R M.493 Digital Selective-Calling System for Use in the Maritime Mobile Service
ITU-R M.628 Technical characteristics for search and rescue radar transponders
ITU-R M.693-1-2012 history
2012ITU-R M.693-1-2012 Technical characteristics of VHF emergency position-indicating radio beacons using digital selective calling