d. LED Blink Codes
The
tracker
reports
its
status
through
the
use
of
a
single
LED
as
follows:
Action
Meaning
Rapid
blinking
Channel
is
in
use
Single
flash
Received
valid
GPS
fix
Double
flash
Received
invalid
GPS
fix.
GPS
may
not
be
ready
Lit
solid
Transmitting
or
in
configuration
mode
Note
‐
If
the
LED
is
blinking
rapidly
when
the
channel
is
not
in
use,
the
receive
sensitivity
is
probably
set
too
high.
Adjust
the
RX
trimpot
until
the
LED
stops
blinking.
It
should
start
blinking
again
when
the
radio
ʹ
s
squelch
opens.
e. Configuration Program
The
OpenTracker
is
configured
through
a
Microsoft
Windows
program
available
in
the
download
section
of
the
website.
Use
a
standard
null
‐
modem
cable
to
connect
the
device
to
the
PC.
The
PC
does
not
supply
power
to
the
tracker,
so
it
must
be
powered
externally.
Connect
the
tracker
and
start
the
configuration
program.
The
first
window
displayed
allows
you
to
select
the
COM
port
that
the
tracker
is
connected
to.
Overwriting
an
Invalid
Configuration
The
‘Erase
device
and
load
new
firmware’
option
will
load
a
new
firmware
image,
using
the
default
configuration
settings,
without
attempting
to
read
the
existing
configuration
first.
This
is
particularly
useful
if
the
tracker
has
an
invalid
or
missing
configuration.
Turbo
Mode
By
default,
the
configuration
program
will
attempt
to
connect
at
115,200
baud.
If
you
have
trouble
connecting,
use
the
‘Disable
Turbo’
option
to
force
the
program
to
connect
at
19,200
baud.
OpenTracker Manual - Version 1.05 – 6/25/06
page
8
of
23
