Uniden UM425 Owner's Manual page 9

Introduction
Table 1 - Terms used in the manual
DSC
FIPS
WX
GPS
NMEA
MMSI
Station
Digital Selective Calling. A VHF radio standard for
communicating among boats and sending automated
distress calls.
Federal Information Processing Standard. A set of
location codes roughly equivalent to your county
codes.
Weather radio
Global Positioning System
National Marine Electronics Association. The
organization that governs standards for electronic
equipment used on boats. NMEA 0183 is the standard
for serial data communication used by GPS receivers.
Maritime Mobile Service Identity number. A unique,
nine-digit number that identifies you and your boat
when making DSC calls. It is also used by the Coast
Guard if you send an automated distress call.
Any DSC radio, whether it's operated on a boat, at a
marina, or by a shore station.
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