Cisco Cisco 1 GHz GainMaker Amplifier Guía De Instalación

Low or Degraded Reverse RF Signal

The reverse RF signal can be measured at the amplifier module reverse input and

reverse output test points.

Low or Degraded Reverse RF Signal Troubleshooting Table

Before you begin troubleshooting for a low or degraded reverse RF signal, verify that the

amplifier is receiving the proper reverse RF input signals from the downstream

amplifiers at the amplifier reverse input test point.
Important! You cannot balance the amplifier without the proper reverse RF input

signals.
Make sure you have configured the amplifier module according to the specifications in

the design print, and that the amplifier has warmed up for approximately one hour.
Make sure you are using the proper total tilt reference when setting receive levels. Refer

to the reverse equalizer charts in Technical Information (on page 95) for more

information.

Important! If the amplifier cover was ever removed, make sure it was properly

reinstalled. Improperly reinstalling the amplifier module cover may result in RF signal

degradation.

Possible cause

Solution

Low or degraded reverse RF signal

at the reverse input test point.



Verify that the amplifier is receiving the proper

reverse RF input signals from the downstream

amplifiers.
Important! You cannot balance the amplifier

without the proper reverse RF input signals.

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