'REATCIRCLE The shortest distance on the globe.
'RID on chart can be set to ON or OFF.
ON = the grid is always visible on the chart display.
OFF= the grid is turned off and will not show on the chart display.
(EADING The direction of which the vessel is pointing.
,#$ Liquid Crystal Display
,OGSPEEDCALIBRATION The unit is preset to receive 19000 pulses per nautical
mile from the log transducer (paddle wheel). However, the figure might have
to be changed to compensate for various transducers and actual waterflow pass-
ing the transducer. The correct pulse rate is calculated by:
19000 x indicated speed (eg. 4 kn)
= 15.200 pulses/nm
actual speed (GPS) (eg. 5 kn)
-EASUREMENTUNITS
nm = nautical mile, 1 nm is 1,852 metres
kn = knots, nautical mile per hour
km = kilometer, 1 km is 1,000 metres
kh = kilometer per hour
mi = statute mile, 1 mile is 1,609 metres
mh = mile per hour
-OTION - can be set to TRUE or RELATIVE.
TRUE
- the ship will move across the chart.
RELATIVE - the ship is locked to the center of the screen and the chart will
move.
.-%! National Marine Electronics Association. The NMEA is an organiza-
tion of manufacturers of marine electronics equipment. They have adopted the
NMEA 0183 as a standard for communications between various types of ma-
rine electronic equipment.
/RIENTATION can be set to NORTH UP, HEAD UP, or NAV UP, and the rotation
resolution preset to 15° can be set to adjust the chart for each 5, 10, 15, 20 and
#%-+))'LOSSARYOFTERMS !PPENDIX!
105
To Next Page
Loading...
Need help?
General
