Glossary
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I
IMO
International Maritime Organization
N
NMEA
National Marine Electronics Association, specification for
communication between marine electronic devices
P
PTT
Push To Talk
PWR
Power
R
RMC
NMEA sentence, version of essential gps position, velocity, time
data.
U
UTC
Coordinated Universal Time. The International Atomic Time (TAI)
with leap seconds added at irregular intervals to compensate for
the Earth’s slowing rotation. Leap seconds are used to allow UTC
to closely track UT1, which is mean solar time at the Royal
Observatory, Greenwich.
V
VHF
Very High Frequency
Z
ZDA
NMEA sentence, date and time.