31Dec2003 (UTC -8)
[quote author=Jonathan_Ferguson link=board=14;threadid=9446;start=msg82458#msg8245 8 date=1072863152]
Is this the same as an E.P.I.R.B.?
[/quote]
Somehow, but not quite. The EPIRB I believe is mandatory for sea-going vehicles, while the PLB is not. The EPIRB can also be twice bigger than a PLB. Signals by an EPIRB are monitored by the Coast Guard, while PLB is by noaa.org in Maryland state.
Quite informative FAQ I found:
http://www.equipped.com/faq_plb/default.asp