APPENDICES Page
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Document id: 7000 108-011 A2
APPENDIX A.7 – GLOSSARY
AIS
Automatic Identification System
AUX
Auxiliary port – A communication port on the AIS
transponder, which can be used for RTCM input.
dB
Decibel
GNSS
Global Navigation Satellite System – A common
label for satellite navigation systems (such as GPS
and GLONASS).
GPS
Global Positioning System.
IEC
International Electro-technical Commission.
LED
Light Emitting Diode.
N/A
Not Applicable.
NMEA
National Marine Electronics Association.
RTCM
Radio Technical Commission for Maritime Services.
TDMA
Time Division Multiple Access – An access scheme
for multiple access to the same data link.
VDL
VHF
Data
Link
VHF
Very High Frequency – A set of frequencies in the
MHz region.
VTS
Vessel Traffic Service