At the bottom of the screen are the Local Time and Cross Track Error
Displays. Please note that
you must recall a
waypoint to
use the
Bearing
and Cross Track Error
displays.
STEERING SCREEN
The steering screen shows a pictorial view of your boat and course
travelled. This is called a Course Deviation Indicator or CDI. It also
shows
Distance To Go (DTG), Speed
Over Ground (SOG), Bearing
to
Waypoint
(BRG), and Course Over Ground (COG).
Your
present position
is shown
by
the arrow. The arrow shows
the direction the boat is head-
ing relative to the waypoint. In
theory, if you steer the boat
with the arrow always pointing
towards
thewaypoint, then
you
• will arrive at the
waypoint. The
• solid line extending from the
arrow is your track or path
you've
taken. To travel directly
to a waypoint, try to keep the ________________________________
• arrow on the center line. The
depicted bya boxatthetop
of
the
CDI
display.
As
you approach
the
waypoint,
the arrow and the box will move
closertogether.
If
you
travel
pastthewaypoint,thewaypoint's
boxwill movetothebottom
ofthedisplay.
The numbers on the top left side of the screen are distance
markers,
showing the
remaining distance to the recalled
waypoint. If the numbers
have
a black box
surrounding them,
then the
distance markers is
showing
the distance PAST the waypoint. In other
words, if the numbers are
surrounded by a black
box then
you
have passed
the
waypoint
and need
to turn around.
The numbers immediately
below the CDI are the CDI range
in miles. This
gives you an idea of how far off course
you are. For
example, if the arrow
is halfway between the course line and the outside left line and the CDI
range
is 0.5 miles,
then
your
cross track error is to the left 0.25 miles. The
CDI
range
is the same as the CDI alarm setting. See the section on GPS
alarms to change the CDI range.
Using the digital displays at the bottom of the screen with the graphical
display
at the
top let you accurately steer the boat to a
waypoint.
MENU - PAGE 3
CHART CURSOR
The UltraNav II has a chart
cursor that allows you to pin-
point a
target's depth.
The cur-
sor is simply a horizontal line
that extends
across the
display
from left to
right. A
depth box at
the end of fhe line on the
right
side shows the line's depth. In
the
example below, the cursor
(line) is at 30.0 feet.
To
displaythe
chartcursor, pressthe
menu keythree
times. Now
pressthe
key adjacent to the
'TURN CHART CURSOR ON" label. A screen similar
to the one at the bottom
of this
page appears. Use the up or
down arrow keys
to move the
cursor up or down to the de-
sired
depth.
To turn the chart cursor off,
pressthe menu
keythreetimes.
Now
press the
key adjacent to
the 'TURN CHART CURSOR
OFF" label. The unit
returns to
the sonar screen.
DISPLAY ZOOM BAR
When the unit is in the zoom
mode, the zoom bar
doesn't normally show
on the screen. The zoom bar shows the section of water on the right
side
of the screen that the zoom
feature displays ontheleftside.
To turn the zoom bar on con-
tinuously, first press the MENU
key until the 3rd menu page
appears. Now press the key
next to the 'DISPLAY ZOOM
BAR" label.
To turn
the zoom bar
off, press
the MENU key until the third
AUTO H 34.3
473 FT
52 25
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