WS-PRO LT weather station
3
For
example,
if
the
height
of
the
tree
T
is
8
feet
and
the
height
of
the
shed
H
is
7
feet,
install
the
weather
station
at
least
80
ft
away
from
the
tree
(e.g.,
10T
=
10x8
=80
ft)
and
70
ft
away
from
the
shed
(e.g.,
10H
=10x7
=
70
ft).
Do
not
place
the
weather
station
near
a
sprinkler
where
it
is
likely
to
be
sprayed
by
water,
as
this
will
change
the
rain
reported
by
weather
station.
Note:
If
your
weather
station
will
be
inside
a
fence
to
discourage
vandalism,
the
fence
top
must
be
lower
than
the
wind
sensors
even
if
the
fence
is
chain
‐
link.
2.3
Grounding
Outdoor
cables
may
be
subject
to
induced
currents
due
to
lightning
or
other
environmental
factors.
Therefore,
proper
grounding
is
imperative
to
avoid
damage
to
the
weather
station
and/or
the
Host
computer.
Please
see
Appendix
A
for
grounding
recommendations.
2.4
Wireless Communication Weather Station
1.4.1
Transmissions
Ranges
Wireless
communication
weather
stations
are
available
for
installations
within
several
ranges.
Typical
transmission
ranges
are
listed
below:
•
Up
to
½
mile
(0.8
km
)
for
the
weather
station
916MHz
and
weather
station
922MHz
•
Up
to
1/4
mile
(0.4
km)
for
the
weather
station
2.40GHz
of
the
central
control
computer.
•
Up
to
7
miles
if
an
optional
higher
gain
antenna
is
installed
on
both
the
weather
station
and
the
RFXXX
Base
Station
1.4.2
Line
‐
of
‐
Sight
This
range
assumes
no
obstructions
are
in
the
line
‐
of
‐
sight.
Line
‐
of
‐
sight
is
defined
as
a
straight
path
between
a
transmitting
and
receiving
antenna
that
is
unobstructed
by
intermediate
topography
or
obstructions.
A
clear
line
‐
of
‐
sight
is
required
to
achieve
the
optimum
transmission
range.
The
affect
of
obstructions
on
the
transmission
range
can
vary.
Therefore,
if
obstructions
lie
within
the
line
‐
of
‐
sight,
you
should
test
your
radio
transmissions
before
permanently
installing
your
weather
station.
