I can't find any difference between a 'PLB' and an 'EPIRB' other than battery life. Both use the 406Mhz signal and have optional positioning broadcast capability.
So I guess there is a 406Mhz beacon calling itself an EPIRB? I was lead to believe that the old 121's were called EPIRB's and that the 406's were called PLB's.
Therefore, I thought that people were comparing apples to oranges when looking for differences between EPIRB's and PLB's.
GARY
