Marine GPS System User Manual

5-2
ERASE TRACK/MARK
MARK ERASE
TRACK ERASE
MARK USED
TRACK USED
: Cursor : Go ESC: Esc
15/100 PT
1200/2000 PT
NO YESNO
NO YES
Figure 5-3 Erase track/mark menu
3. Operate the Cursor Pad to select TRACK
ERASE.
4. Press s to select YES. You are asked if
you are sure you want to erase all track.
Are you sure?
ENT: YES
ESC: NO
5. Press the ENT key.
6. Press the MENU key.
5.4 Changing Track Plotting
Interval
In drawing the track, first the ship's position
(fed from the GPS plotter) is stored into this
unit's memory at an interval of time, distance
or automatic recording. (The default setting
is l0 minutes.) A shorter interval provides bet-
ter reconstruction of the track, but the storage
time of the track is reduced. When the track
memory becomes full, the oldest track is
erased to make room for the latest.
1. Press the MENU key.
2. Press the [2] key to select TRACK/
MARK SETUP.
3. Operate the Cursor Pad to select PLOT
INTVL.
4. Operate the Cursor Pad to select interval
desired; AUTO, TIME or DIST on the
PLOT INTVL line.
TIME: Plots ship's track at desired time
interval, from 0 to 99 min 59 sec.
DIST: Plots ship's track only when the
boat is moving, thus no track is saved to
the memory when your boat is dead in
water.
AUTO: Changes with chart scale auto-
matically.
5. For time or distance, enter interval de-
sired.
6. Press the MENU key to close the menu.
5.5 Smoothing Track
Even when the vessel is sailing a straight line
the track shown on the display looks crooked.
This is due to signal variation. To smooth out
this irregularity, change the smoothing factor.
1. Press the MENU key.
2. Press the [0] key.
3. Press the [2] key.
PLTR SETUP
NAVAID
SCALE
SMOOTHING
SPD AVERAG
BEARING
MAG CALIB
EVNT METHOD
POSITION
DISP
Chain: Sec
LOP CALIB
OWN LC DE ALL
SCALE RANGE
00 (00~15)
00 min
TRUE MAG
AUTO MAN
06.3°W 00.0°E
EVENT MARK
L/L LOP
LC DE
7970: 11-26
+000.0 µs
+000.0 µs
: Cursor ESC: Esc
: E/W, +/-
Figure 5-4 Plotter setup menu
4. Operate the Cursor Pad to select Smooth-
ing.
5. Enter smoothing with numeric keys.
6. Press the ENT and MENU keys to regis-
ter selections.