CHANGE POSITION
Use a chart to determine your position if you don't know it. The latitude!
longitude that
you
enter doesn't have to be
extremely accurate. Typically,
if you enter a position within one degree of your present position, the
UltraNav II should quickly find your actual Iatitude!Iongitude. To change
your
present position,
first
press
the key next to the "CHANGE LAT" label.
The screen shown below
appears. Use the down arrow key to
change the
"N" to "5", if necessary. Next,
simply
enter
your present lati-
tude
using
the numbered
keys.
Notice thatthe
position
entered
is in degrees, minutes, and
hundredths of a minute. (Not
seconds!) If you make a mis-
take, press the left or right ar-
row keys
to move to the num-
ber in the latitude that needs
changing.Afterthe
latitude has
been entered, press the key
next to the "ACCEPT' label.
LATITUDE N 36°08.862'
LONGITUDE hi 95°SO.484'
ALTITUDE 1696
LOCAL TitlE 10:17:23 PM
LOCAL DATE 1'03'1993
USE NUMERIC KEYS

UFD:''

&flW
Now
press
the key next
to the
"CHANGE LON" label. The black box will be next to the "E" on the
longitude. Again, use the up or down arrow keys to switch the "E" to "W"
or west longitude, if necessary. Now enter the longitude using the
numbered keys. Be certain to enter a zero "0" as the first number in the
longitude if it's lessthan 100
degrees! Afteryou've
enteredthe last number,
press
the
key next to the "ACCEPT" label.
CHANGE ALTITUDE
• To enter
your present altitude, press the key next to the "CHANGE ALT"
• label. The UltraNav II needs to know your
elevation above sea level. (Not
your height
above the ground.) Again, an approximation is usually
suffi-
cient. Use the numbered keys to enter
your altitude data. Press the
up
• arrow key if
your
altitude is below sea level. 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 enter the numbers
"35",
then
press the
up arrow key
to
change itto -35 feet. Press the
key
nexttothe "ACCEPT" label when
you're
done.
CHANGE TIME
To
change the local time
(the time at
your position), press the
key next to
the "CHANGE TIME" label. The screen shown at the
top
of the next
page
appears.
ASP
(Advanced Signal Processing)
The
ASP feature is a noise rejection system
built into
the UltraNav II that
constantly evaluates the effects of boat speed, water conditions, and
interference. This automatic feature gives you the best
display possible
under most conditions.
The ASP feature is an effective tool in combating noise. In sonar
terms,
cnoise is any undesired signal. It is caused by electrical and mechanical
sources such as bilge pumps, engine ignition systems and wiring, air
bubbles passing
over the face of the
transducer, even
vibration from the
engine. In all cases, noise cap produce unwanted marks on the display.
The ASP feature has two levels -
Normal and High. If
you have high noise
levels,
try using
the
"High" ASP
setting. However,
if
you
are having trouble
with noise, we suggest that
you
take
steps
to find the interference source
and fix it, rather than
continually using the unit with the
high
ASP setting.
However, there are times when
you may
want to turn the ASP feature off.
This allows you to view all incoming
echoes before they
are
processed by
the ASP feature.
To
change the ASP
level, press the MENU key five times.
Then
press the
key next to the "ADJUST LEVEL OF CHART ASP" label until the desired
level is obtained.
SYSTEM INFORMATION
The
System
Information menu
gives yoU
the date and revision number of
the software used in the Accura. To view this menu, press
the Menu key,
then press the key next to the ____________
"More" label until the fifth menu
page appears. Now press the
key next to the "SYSTEM IN-
FORMATION" label. A screen
similar to the one at right ap-
pears. To return to the sonar
screen, press the key next to
the
"Exit" label.
48 29
EAGLE

ELECTRONICS

COPYRIGHT 1992
CODE UERSIUN —— U2.5B
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