Press the
key
adjacent to the "N/S
TOGGLE'
to switch the latitude from north to south.
Press
the
key adjacentto
the "W/E TOGGLE"
to switch the
longitude from west to east. If
the
position shown at the
top of the screen is
correct, press the
key adjacent to the "FIN-
ISHED" label. The Altitude screen appears
next. E
7TOGGLE
SONAR MENU- PAGE 7- FISH l.D. OFF SURFACE CLARITY CONTROL-SCCThe
markings extending
downwards from
the zero line can extend manyfeet
below
the surface. These
markings are called
surface clutter and are caused
by wave
action, boat wakes, temperature inver-
sion,
and more.
-J
Enter Altitude Screen The screen shown below is the Altitude entry
screen. The UltraNavGPS
needs to know your elevation above sea level. (Not your height
above the
ground.) Again, an approximation is usually sufficient. Use the numbered
keys to enter
your
altitude data. Press the
key adjacent to the
"FIN ISH ED"
label when
you're
done. A new label
appears: (+1- TOGGLE). Press the
key
adjacent to this label to switch the altitude
you entered from positive
to
negative. For
example, suppose you're
in Death Valley and the
spot you're
standing in is 35 feet below sea level. You would need to enterthe numbers
"35",
then
press the
key adjacentto
the +1- label to
change itto -35 feet. After
this step is completed,
the UItraNavGPS switches to the
Time/Date
entry
screen. This is the last initialization screen.
+ FT - Surface
Clarity Control, or SOC reduces or eliminates undesired signals
from the
display. SOC varies
the sensitivity of the
receiver, decreasing
it
near the surface and gradually increasing it as the range increases.
Typically, the
maximum depth
that SOC affects is 75% of the
range. For
example, on a 0-60 foot range with maximum SCO, surface clutter would
be reduced to approximately 45 feet.
There are three levels of SOC available when the
Fish 1.0. feature is off:
low, medium, and high. When the Fish ID. feature is
on,
the SOC is not
adjustable and this menu doesn't shown on the
display.
To adjust
the 5CC, make certain the
Fish l.D. feature is off, then press the ____________________
MENU
key
seven
times. Now
press
the
key adjacent to the
"SET CHART SU R ____________________
FACE CLARITY" label. Finally, press
the key adiacent to the desired SOC
level. The unit will return to the
chart,
using
the level of SOC you chose.
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USE NUMBERED
KEYS TO
INPUT APPROX
ALT I TUDES PUSH CLEAR
IF UNKNOWN.
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SCC IS Efl SELECT44 29
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