Cisco Cisco 1 GHz GainStar Amplifier Installation Guide
Balancing the Reverse Path
Balancing the Reverse Path
Introduction
This section describes reverse RF Line Extender cascade balancing. Balancing refers
to the process of individually aligning reverse GainStar Line Extender station gain
and tilt characteristics to achieve reverse GainStar Line Extender cascades that have
optimum, repeatable transmission characteristics.
There are a variety of test equipment combinations that enable proper balancing of
There are a variety of test equipment combinations that enable proper balancing of
the reverse path. Regardless of the type of the equipment used, the balancing
process is fundamentally the same.
To Set Up the Reverse Input Level
Complete the following steps to test the reverse input level.
Important: You cannot balance the GainStar Line Extender without the proper
Important: You cannot balance the GainStar Line Extender without the proper
reverse input signals.
1 Connect the test equipment to the reverse input test point shown in the
1 Connect the test equipment to the reverse input test point shown in the
illustration below.
2 Measure the signal level. The recommended range is 5 dBmV/ch to 20
dBmV/ch.
3 Measure the input level, and compare it with the design level.
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