Specifications

PLO1TER
MENUS
(cont.)
STATION
DATA
Clear Plot
The Clear
Plot" label clears the solid
track line. The
plotter
will continue to
draw
your
track
after this
key
is
pressed,
however the
location of
your
present position
will be centered
on
the screen.
Select
Update
Hate
SelectRadius Size
This menu allows the
changing
of the
circle's radius on the
plotter
sc(een.
The
plot
radius is 1/4
nautical mile
when the UltraNav is turned
on for the
very
first time. The available
plot
radii
are:
1/4, 1/2/, 1,
2, 5, 10, 20, 50,
100,
and
200 nautical miles. This
lets
you
zoom in or
zoom out the
plotter's
display.
To select a
radius,
simply
press
the
key
adjacent
to the desired
radius size. The
screen will
clear,
re-
turning you
to
the
plotter
with the
new
radius.
The
plotter
shows
your
track
by drawing
a solid line
behind
your
present position.
When
the unit is turned on for the
very
first
time,
the
position
is
updated
once
every
ten seconds. You can
vary
this time
from 2 seconds to 20 minutes.
As each
dot is
placed
on the track
line,
one
is erased from the
end
after a certain
length
has been achieved.
This shortens the
plotted
line,
but still
shows the
history
of
your passage.
If
you
plot
a course
that's a
long
distance
away
and use a short
update
time,
the line
may
not reach from the
starting
location to the destination.
The UltraNav's Station
Data Screen
displays
all of the
technical data
for the stations
in the current GRI. To
view this
screen, press
the
MENU
key
two times.
The screen shown
below left
appears.
Now
press
the
key adjacent
to the "STATION
DATA SCREEN".
The
screen shown
below
right appears.
The TD's for the
master station
and all of the
secondaries in the chain
display
at the
top
of the
screen.
Stations that
are
currently
in use are shown in
reverse video.
In this
example,
the master and stations
Y and Z are
in use.
U
fl
X
V 2
R
R
R
The
letter on the far
right
side
of the screen is an abbreviation
for the
station status.
The status is as
follows:
S
-
SEARCH
Searching
for the station's
signal.
Do
not use
this TD for
navigation.
C
-
CYCLE ERROR
The receiver is
trying
to "lock on"
to
the
proper cycle.
Do not use this
TD for
navigation.
L
-
LOCKED
The receiver has
locked on to the station.
Use a TD
only
when the
"L" indicator
displays.
N
-
SNR The receiver
has a low
signal
to noise ratio for this
station.
Do not use this
TD for
navigation.
B
-
BLINK The station
transmits a
signal
called
"Blink" when it's
signal
is not usable. Do not use
this TD for
navigation.
1
4
a
SELECT
RADIUS
SIZE
UPDATE
4
SUt1I1AR?
SCREEN
a
w Swe
SELECT RADIUS
___
IN
_____
NAUT. MILES
____
RADIUS
______
IS
1'4NM
ii: 14958.69
X 31903.51
C
C
Z 60865.50
C
STATION
DATA
4
__
58
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