Page 6 of 77
SKIPPER Electronics AS
Edition: 2017-06-12
GDS102 Operation and Installation Manual
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Chapter: Terminology
Terminology
Units
Depth Meters (m), Feet (ft), Fathoms (ftm) or Braccias (br)
Picture speed min:sec / div
Speed Kilometer/hour (km), miles/hour(mi/h) or Knots (kn)
Temperature Degrees Celsius (
o
C)
Abbreviations
In addition, the following symbols are used on the runtime screens:
kHz KiloHertz. Frequency
TVG Time variable gain
DBT Depth below transducer
DBK Depth below keel
DBS Depth below surface
ALF Alert sentence complient to IEC62288 2014
ALR Alert sentence
TEMP
o
Text for TEMPerature
In menu / setup screens, the following abbreviations are used:
NMEA National Marine Electrinics Standard NMEA-0183
LCD Liquid-Crystal Display
IEC International Electrotechnical Commission
IMO International Maritime Organization
AC Alternating Current
DC Direct current
V Voltage
mA MilliAmpere
VGA Video Graphic Display
UTC Coordinated Universal Time
m Meter
EMC Electro Magnetic Compatibility
Draught/Draft Draught is the distance from surface to lowest part of hull (keel).
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