on each line shows the
unit of measure currently
in use. In the screen
shown below, the units of measure
are in feet for the depth, temperature
in degrees Fahrenheit,
and both
speed
and log
are in statute
miles perhour.
Press the key adjacent to the unit
that
you wish to change. For example,
press
the key next to the DEPTH label two times to switch from feet to
meters. This
moves the black
boxtwo times from the "Fr"
to the "M".
When
you have the units of measure set as desired, press
the key next to the
"EXIT" label.
CLEAR DISTANCE LOG
The UltraNav II
starts counting distance as soon as it is
turned on. To reset
the distance log
to
zero, pressthe
MENU
key
untilthe
"CLEAR DISTANCE
LOG" label
appears, then press the key adjacent to that label.
ADJUST CHART SURFACE
CLARITY
The
markings extending down-
ward from the zero line on the:
chartare called "surface clut-
ter." These markings are
caused by wave action, boat
wakes, temperature inversion,
and other
natural causes.
ADJUST
E TLEVELOF
CHART ASP
fl
HIGH
MINFORMATIQN AGEIE
The Surface
Clarity Control (SCC) reduces or eliminates surface
clutter
signals from the display. 5CC varies the sensitivity of the receiver,
decreasing it near
the surface and gradually increasing it as the depth
increases. The maximum
depth that
3CC will affect is 75% of the
selected
depth range. For example, on a 0-60 foot range with maximum SCC,
surface clutter will be reduced down to 45 feet.
There are thre levels of 8CC available on the
UltraNav II: low, medium,
and high.
When it's turned on for the first time, the SCC
level is low. To
change it, press the
MENU key
five
times, then
press
the key adjacent to
the "ADJUST CHART
SURFACE CLARITY" label until the black box is on
the desired 5CC
level.
Press the
key next to
the "EXIT" label when you're
finished.
Use the number
keys
to enter
the time. Press the up arrow
key to change the time from
AM to PM or the down arrow
key to
change from PM to AM.
Press the
key next to the "AC-
CEPT" label when you're f in-
ished.
LATITUDE N 36°O8.82'
LONGITUDE hi 950E0.484'
ALTITUDE 1696
LOCAL TIME O:17:23 PM
DATE 1/03/1993
.L9CAL
SUMERIKEYS 1
TO CHANGE VALUE
UP="AM"DN=P
CHANGE DATE ____
To enter
today's date, press aAccEPY
the key next to the "CHANGE
DATE" label. The screen shown below
appears. Enter
the date
using
the
numbered keys. When you're
finished, press the key
"ACCEPT" label.
The
numbers atthe
top of the screen should be correct. If
they
aren't,
press
the key next to the label that
you need to change. If every-
thing
is correct, press
the key
next to the "EXIT" label. The
unit will switch to the position
screen and start searching for
the satellites currently
in view.
It should find the satellites and
show a position in a few min-
utes.
COLD START
When the UltraNáv II is turned
LATITUDE N 36°O8.862'
LONGITUDE hi %°EU.484'
ALTITUDE 1696
LOCAL TIME 10:17:23 PM
DATE 1'03'1993
WUNERIc
KEYS I
5
TO CHANGE VALUE
on for the first time "out of the
box", it automatically sends a "cold start"
message to the GPS receiver. You also can send a cold start
message to
the receiver.
If the unit can't lock
on to the satellites using
the data you've given it, or if
it has
troublefinding
the
satellites, perhaps it is
using
the wrong data. This
can happen
if you've entered the
wrong data
by accident. For example,
given
it east
longitude instead of west. Or if
you've moved a
long
distance
with the unit turned off.
To send a cold start message to the receiver, press the GPS
key. Next,
press
the MENU key. Now
press the key next to thefl "CHANGE GPS
SE1TINGS" label.
Finally, press
the
key nextto the "GPS "COLD" START'
label. The unit will begin a cold start technique to find the available
satellites. It should lockonto them in
15 minutes or less. Remember, when
MENU -
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