Simrad GN33, Manual

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Appendix A-2 GN33 Glossary of terms
LOG speed calibration
– the unit is preset to receive 19000 pulses per nauti-
cal mile from the log transducer (paddle wheel). However the figure might
have to be changed to compensate for various transducers and actual water
flow passing the transducer. The correct pulse rate is calculated by:
19000 x indicated speed (e.g. 4kn) = 15.200 pulses/nm
actual speed (GPS) (e.g. 5kn)
Measurement units
– the user may select the displayed units to be one of the
following:
m
meters
ft feet
fm fathoms
nm
nautical mile, 1 nm is 1,852 meters
kn knots, nautical mile per hour
km kilometer, 1 km is 1,000 meters
kh kilometer per hour
mi statute mile, 1 mile is 1,609 meters
mh mile per hour
MENU
– the selection of main menus will be shown in the upper part of the
screen. Leaf through the menus by means of the cursor key and the [ENT]
key, or use the numerical keys to activate one of the menus.
Navigation simulator
- the chartplotter function features a built-in navigation
simulator which can be used for demonstration purpose or for practicing ‘live’
navigation in ‘off season’.
Navigation to cursor or waypoint, in route or in track is started as described in
chapter 6. The navigation simulator is started via the NMEA interface setup:
Press [MENU],[7],[2], [PAGE]; go to ‘OFF’ next to ‘External pos data:’ and
press the [-] key to toggle to: Dead reck.; move cursor to the right and enter a
speed value of e.g. 10 knots; press [ENT] twice.
The ship symbol will now ‘sail’ to the point of destination directly or via the
route you have selected and you can see how the alarms and automatic way-
point shift all work, as if you were sailing yourself. You can also simulate
making a track trailing the ship or plotting eventmarks, etc. as the ship is ‘sail-
ing’.
NMEA
– National Marine Electronics Association. The NMEA is an organi-
zation of manufacturers of marine electronics equipment. They have adopted
the NMEA0183 as a standard for communications between various types of
marine electronic equipment.
Port
side – left (red).