User guide
Canopy System User Guide Finding the Information You Need
pmp-0229 (Mar 2013)
27
If you want to know… then see… because…
how to calculate whether an
object will interfere with a signal
A reflected signal can arrive
at the
antenna of the
receiver later than the
non-reflected signal
arrives. These two or
more signals cause the
condition known as
multipath. Multipath may
increase or decrease the
signal level and so
overall attenuation may
be higher or lower than
that caused by the link
distance. This is
problematic at the margin
of the link budget, where
the standard operating
margin (fade margin)
may be compromised.
Noting Possible
Obstructions in the
Fresnel Zone
on Page 126
this topic is important to RF
planning.
how long a cable you can use
from the GPS antenna to the
CMM
Cables on Page 25 cables are accessory
components.
the dedicated user guide
that supports the CMM that
you are deploying.
the advisory applies to mounting
GPS antennas and CMMs.
how to react to a WatchDog
Event Log message
Messages that Flag
Abnormal Events on Page
505 and Messages that
Flag Normal Events on
Page 506
together, these two sections
document all significant Event
Log messages.
what beam angle the passive
reflector dish produces
Specifications and
Limitations on Page 74,
then downward to a table
for a part number that
includes “RF.”
the beam angle is a specification.
how to aim the passive reflector
dish
Installing a Reflector Dish
on Page 408
aiming is associated with
installation of wireless bridges.
how to set Differentiated
Services values so that traffic
with original ToS byte formatting
continues to be prioritized as it
was before DSCP fields.
High-priority Bandwidth on
Page 86
DSCP fields specify the level of
priority that the device is
requesting for the packet.