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Course
Line
\
Waypoint
Waypoint
Bearlng To
Waypoinl
(BRG)
Present
Position
Range
To
,,/
Waypoinl
(RNG)
Presenl
Position
*- Over
Ground
(SOG
on
COG
line)
I
I
L
Advanced
lVavigation Guide
The Star
Pilot 6
is designed to
be the easiest
to use GPS
systern
available
today.
The
previous
sections
of the
operation
manual
have
detailed
the basics
of installation
and operation
of the Star
Pilot 6.
To utilize the
system to
its optimum. the
firllowrng
section on
navigation
should be
studicd. By becoming
ntore
familiar
with these
navigational
and GPS terms
and concepts,
you will increase
your
own navigational
skills.
GPS
Modes
The Star
Pilot 6 operates
in an automatic
GPS
Mode.
When
three
satellites
are available.
2D fixes
firr latitudc and
longitude are
given.
If tbur satellites
are available. 3D
fixes
for latitude. lorrgitude
and
altitude are
qiven.
Navigational
Terms
LATITUDE/LONGITUDE
(LATiLON)
Latitude is the distance
measured in degrees
North and South
of the cquator.
Longitude
is the
clrstance
rneasured in degrees
West
and
East of
thc
prirne
meridian at
Grccnwich.
England.
SPEED OVER
(;ROUND
(SO(;)
This
is
the trLrc
speed calculated
from the time and distance
ove
r
the
grouncl y'ou have travelled. SOG
c'loes
not
consider
watcr sne-cd or clcstination
for
rts
calculations.
COURSE
OVER
(;ROUND
(C(X;)
This is the true course
over
the
ground
on
which
you
are
currentlv
hcailing.
CROSS
TRACK FIRROR
(Xl'Fl)
This is tlrc distancc
ol'your boat,
either
lefi or right.
frorl the clesirccl track
(start
point
to clestination).
RAN(;E
(RNG)
Distancc
l'ront
presctrl positiort
to the
sclected
way'point.
BEARING
(BR(;)
Angle l'ronr
True
(rnagncticl
North to thc
wavpoint
al
prescnt ptrsitiori.
ESTIMATF.D'[IME
of ARRIVAI-
(F.T,\)
This is
an
estimate
basecl on the current
tirne
ancl
1'our
TIME TO GO tTTGl
ot'when
you
will get
to the
selected
waypoint.
TIME TO GO
(TT(;)
This is
calculatcd
I'rom
the clrrrent
distance to
-eo
(DTG)
to
your
destination ancl
your
VELOCITY
MADE GOOD
(VMG)
of how long
it
will
takc
you
to
get
to the
sclectcd
rvitrpoint.
VELOCITY
MADE
GOOD
(VMG)
This is
the
portion
of
your
boat's
speed that
is
parallel
to
yourdesired
track
(start
point
to
destination).
VMG
is especially useful
fbr sailin-e boats
where
closing
speed on the desired
waypoint is displayed regardless of'course or
bearing changes
(tacking)
made
enroute.
-t
Distance
Made
Good
-
(DMG)
\-
Course
Made Good
(cMG)
Bearing
To
aypoint
(BRG)
Speed
Speed Of
Advance
(SOA
on
BRG
line)
Cross
Track
Error
(xrE)
w
Course
-z
Llne
Start
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