2. Precautions
l
IMPORTANT
—
Radios
must
be
configured
to
use
the
proper
hop
table
version
to
comply
with
local
laws
and
to
avoid
interference
with
other
RF
installations
such
as
cellular
services.
Available
hop
table
versions
are
listed
in
the
Device
Configuration
Utility
Settings
Editor
for
the
RF451/RF452.
Hop
table
versions
include
North
America
(default),
Australia,
New
Zealand,
Taiwan,
Brazil,
International,
and
Notch
(custom).
See
for
more
information.
l
READ
AND
UNDERSTAND
the
section
at
the
front
of
this
manual.
l
This
equipment
generates,
uses,
and
can
radiate
radio
frequency
energy
and,
if
not
installed
and
used
in
accordance
with
the
instructions,
may
cause
harmful
interference
to
radio
communications.
See
for
more
information.
l
Line-of-sight
obstructions
and
RF
interference
will
affect
the
transmission
distance.
See
and
for
a
discussion
of
antenna
gain
and
other
factors
affecting
distance.
RF451/RF452 Spread Spectrum Radio
2