BAR" label.
Note:
Turning the zoom bar on also turns the zoom feature on.
DISPLAY
ZONE
BAR
When the
zone alarm is
on,
the
zone
bardoesn't
normallyshow
on the
screen. To
turn the zone
baron continuously, first
press
the MENU key until the 3rd
menu
page appears.
Now
press
the key next to the
"DISPLAY
ZONE BAR" label.
To turn the zone bar
off, press
the MENU key until the third _____________________________
menu
page
appears,
then press
the key adjacent to the "REMOVE ZONE BAR" label.
Note:
Turning the zone bar on also
turns the zone alarm on.
DIGITAL
SONAR
When the UltraNav Ills
turned on
forthe first
time,
the digital depth display
is located at the
top left corner of
the screen. This
display comes
from a
separate digital
sonar built into
the unit. It
displays only
the bottom
depth.
If it loses the bottom,
the last known depth will
flash
on the display. When
the digital finds
the bottom, it will automatically display the
valid bottom
depth again.
The
digital sonar can be
turned
off, however this also
turns all automatic
features
off
also, such as auto sensitivity, auto ranging, and Fish I.D.
To turn the digital sonar off, press
the Menu key three times. Now
press
the
key
adjacentto
the
'TURN DIGITAL SONAR OFF"
label, to turn it back
on again, repeat the same
steps.
TURN ALL SONAR OFF
To turn all
sonarfunctions off
and turn
the UltraNav II into a
OPS receiver
only, press the MENU key until the 'TURN ALL SONAR
OFF" label
appears. Press the key next to
that label. This turns the digital sonar and
the chart sonar off. Repeat
the
above
steps
to turn
the sonar on. The
label
at the bottom of
sonar menu page 3 now reads "TURN ALL
SONAR ON."
Pressing the
key
adjacent to
that label starts all sonar functions.
direction of the satellite from
your
position. For
example, if the azimuth of
a
satellite is 180 degrees,then it is due south. SNR is the
signal-to-noise
ratio. This tells
you
how
strong the satellite's signal is. The
higherthe SNR
number, the better.
The
satellites that are visible in the
sky
from
your position are shown in the
lower
right corner of the screen under
the "VISIBLE SATS" heading.
In
the lower left corner of the
screen are the DOPS displays.
These show
you
the
"Dilution Of Precision"
(DOP)
forthe horizontal (HOOP), geometric
(GDOP), position (PDOP),
time
(TDOP),
and vertical
(VDOP). The GDOP
is the combination value of HDOP, VDOP, and TDOP. The smaller the
GDOP's number
is,
the
better. The OPS receiver
selects satellites based
on GDOP, therefore it
always tries to use satellites that have good DOP
values. These
depend on the azimuth and
elevation of the
satellite, and
any ground based obstructions.
Remember, the smaller the number
- the better on all of the DOPs.
POSITION SCREEN
The position screen automatically appears after the UltraNav II is initial-
ized. The
position
display
shows
yourpresent
position,
course
overground
(COG), cross
track error
(XTE),
Your
present
position displays
near the
top of the screen in
latitude/longitude coordinates.
This is shown in minutes, and
thousandths of a minute. For
example, on this. page, the — —
present position
is 36
degrees, __________
8.856 minutes latitude and 95
degrees, 50.496 minutes Ion-
gitude. Belowthe
present
posi _____ ______
tion on the left side
is the Bear _____________
ing
to Waypoint (BRG) display.
This is expressed in degrees
true or magnetic, depending
on the
mode the UltraNav II is in. To
the right of the
Bearing is the Course
Over Ground
(COG) display.
menu page appears,
then
press the
key adjacent to the
"REMOVE
ZOOM the satellite above the horizon from
yoUr position. AZM
is the azimuth or
4.'
AUTO
5fl3FT
4.C
.oZ
U
H
I bearing (BRG), and local time.
h — — ' —a-——
N 36°O8856'
U 95°50.496'
.850 MI 287G M
PIIH1L tOl MI
26 51
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