Cisco Cisco 1 GHz GainStar Amplifier Installation Guide
Chapter 3 Balancing and Setup
the forward input pad with a higher value pad.
3 Measure the forward input test point level, and compare this level with the
design level. The test point attenuates input signals by 20 dB.
4 Are measured levels within the design limits?
a If yes, proceed to step 5.
b If no, or if no signals are present, find the problem before proceeding. You
b If no, or if no signals are present, find the problem before proceeding. You
cannot balance the GainStar Line Extender without the proper input signals.
5 Remove the test probe from the forward input test point, leaving other
equipment connectors in place.
To Determine the Output Tilt
Complete the following steps to determine the output tilt of the GainStar Line
Extender.
1 Connect the test point probe to the forward output test point.
1 Connect the test point probe to the forward output test point.
2 Consult the design print to find the proper output tilt.
3 Measure the output signal levels at the frequencies you used in
3 Measure the output signal levels at the frequencies you used in
To Verify the
Forward Input Level.
4 To determine the actual output tilt, calculate the difference (in dB) between the
levels of the lowest and highest specified frequencies.
5 Proceed to the next section,
To Set Up the Output Tilt.
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