GPS
Quality
–
Report
fix
type,
number
of
satellites
in
use,
and
dilution
of
precision
information
as
reported
by
the
GPS
receiver.
Temperature
–
Report
temperature
as
indicated
by
the
onboard
temperature
sensor
in
the
comment
field,
in
degrees
C.
Voltage
–
Report
input
voltage
in
the
comment
field.
The
maximum
value
is
15
volts,
and
the
minimum
is
the
dropout
voltage
of
the
regulator
–
typically
6.7
volts.
SmartBeaconing™
–
Originally
developed
for
the
HamHUD
by
Tony
Arnerich,
KD7TA,
and
Steve
Bragg,
KA9MVA,
the
SmartBeaconing™
algorithm
allows
the
tracker
to
operate
more
efficiently
by
changing
how
often
it
transmits
depending
on
its
speed
and
direction
of
travel.
When
stopped
or
moving
at
a
speed
below
the
low
speed
setting,
the
tracker
will
transmit
at
a
fixed
rate
determined
by
the
lower
rate
setting.
Above
the
specified
high
‐
speed
threshold,
the
higher
rate
setting
is
used.
Between
these
two
extremes,
the
interval
varies
between
the
low
and
high
rates
depending
on
the
speed.
A
turn
angle
can
also
be
specified
to
cause
the
tracker
to
transmit
when
turning.
Power
Control
–
When
selected,
the
tracker
will
assert
a
5
‐
volt
signal
on
JP1
before
each
transmission.
This
can
be
used
to
drive
a
relay
or
MOSFET
to
control
power
to
the
transmitter.
The
tracker
will
pause
for
the
specified
number
of
seconds
to
give
the
transmitter
time
to
power
up.
The
power
control
feature
is
especially
useful
for
solar
‐
powered
weather
or
telemetry
stations.
Do
not
exceed
25
mA
load
on
JP1.
Timeslot
–
The
timeslot
option
is
typically
used
to
coordinate
multiple
trackers,
especially
for
special
events
where
many
transmitters
will
be
sharing
the
same
channel
with
a
high
beacon
rate.
The
number
entered
selects
the
timeslot’s
offset,
in
seconds,
from
the
start
of
the
hour.
The
tracker
will
transmit
at
this
time,
and
every
transmit
interval
after
that.
The
timeslot
value
should
be
smaller
than
the
transmit
interval.
OpenTracker Manual - Version 1.05 – 6/25/06
page
12
of
23
