Cisco Cisco 1 GHz GainStar Amplifier Installation Guide
Balancing and Setup
28
Preparing for Forward Path Balancing
Before You Begin
Before you begin balancing, it is important to review and understand the following
information. This information will show you which balancing process is appropriate
for your GainStar Line Extender.
Before balancing, make sure that you have configured the GainStar Line Extender
module according to the specifications in your design print and that the GainStar
Line Extender has warmed up for approximately one hour. The table below shows
the items needed for balancing.
information. This information will show you which balancing process is appropriate
for your GainStar Line Extender.
Before balancing, make sure that you have configured the GainStar Line Extender
module according to the specifications in your design print and that the GainStar
Line Extender has warmed up for approximately one hour. The table below shows
the items needed for balancing.
You need a ...
To ...
copy of the design print
determine expected input and output signal
levels.
levels.
torque wrench with 1/2-inch socket
open and close the system amplifier housing.
spectrum analyzer or signal analysis
meter capable of working with
frequencies up to the highest design
frequency
meter capable of working with
frequencies up to the highest design
frequency
determine absolute and relative signal levels.
test point probe (part number 1010409)
access the test points.
75 ohm coaxial cable with F-connectors
on each end
on each end
connect the test point probe to the test
equipment.
equipment.