www.navig8r.com.au
76
FREQUENTLY
ASKED
QUESTIONS
GPS
navigation
systems
require
a
clear
line
of
sight
to
work
effectively
and
will
not
work
indoors.
Function
may
also
be
impeded
in
heavily
wooded
areas
and
city
streets
between
high
rise
buildings
that
may
impede
line
of
sight
to
satellites.
In
conjunction
with
the
map
software
loaded
on
to
the
GPS
unit,
the
system
can
calculate
your
exact
location,
heading,
speed
and
correct
time
and
overlay
the
results
on
a
map
of
the
area.
The
software
in
the
system
can
also
calculate
the
best
route
to
other
locations
and
give
instructions
to
the
driver
on
the
best
route
giving
fair
warning
of
impending
turns.
These
warnings
can
be
given
visually
or
audibly
depending
on
the
model
of
the
system.
Different
models
can
have
a
wide
variety
of
functions
and
features.
Q:
How
accurate
are
GPS
systems?
A:
In
perfect
conditions,
GPS
navigation
systems
are
generally
accurate
to
3mtrs.
Several
factors
can
impede
the
accuracy
of
the
GPS
unit.
These
include
atmospheric
conditions,
signal
reflection
(or
multipath)
and
clock
errors.
Most
of
these
errors
are
small
and
are
usually
only
apparent
when
stationary.
Typically
a
personal
GPS
unit
is
accurate
to
within
15
meters.
The
GPS
system
is
only
as
accurate
as
the
mapping
software
in
the
unit.
If
the
map
data
is
incorrect
the
visual
representation
of
you
location
may
not
be
displayed
correctly.
Map
data
is
compiled
from
several
sources
and
may
not
be
100%
up
to
date.
Councils
and
regulatory
authorities
may
change
road
signs,
add
or
remove
traffic
lights
and
roundabouts
and
change
the
direction
of
traffic
along
roads
at
any
time
and
these
changes
may
not
have
been
made
at
the
time
the
mapping
software
was
complied.
Q:
Why
does
my
Navig8r
receiver
show
that
I
am
moving
when
I
am
standing
still?
A:
Occasionally,
GPS
satellites
may
broadcast
a
signal
error
called
Selective
Availability
(SA).
This
can
be
displayed
as
up
to
4KPH
of
movement
on
the
GPS
receiver.
Q:
The
GPS
unit
will
not
turn
on
after
charging.
What
can
I
do
to
get
it
working
again?
A:
In
most
cases
this
problem
is
easy
to
resolve.
Make
sure
that
the
GPS
is
charged
or
connected
to
a
power
supply.
Remove
the
Mount
Cover
form
the
rear
of
the
device
and
locate
the
reset
button.
Using
the
supplied
stylus,
press
the
reset
button.
The
GPS
unit
should
now
start
and
load
the
main
menu.
You
will
need
to
reset
any
settings
such
as
the
system
time
and
date
again.
If
the
above
does
not
work
and
the
system
will
not
start,
please
contact
the
reseller
or
tech
support