Cisco Cisco 1 GHz GainMaker Amplifier Installation Guide

 

 

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If the output level is less than the design level, replace the forward input pad 
with a lower value pad. 

4  Repeat steps 2 and 3 until the output level is correct. 

Note: On the High Gain Dual, the type of plug-in signal director installed directly 
affects the signal level measured at the Aux RF output test points. This is because 
the Aux RF output test points are located after the signal director in the forward RF 
signal path. The test points now reflect the actual output of the port. 
It is important to determine if the Aux output level specified on the design print is 
the level before or after the signal director. 

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If it is the level after the signal director (port output level), the test point 
should match the print design level. 

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If it is the level before the signal director, the test point level should be “x” dB 
lower than the print design level, where “x” is the insertion loss of the signal 
director feeding the particular Aux port being balanced. 

5  Proceed to Balancing the Reverse Path (on page 68). 

 

Before you begin, make sure that 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. 

Note: If it is necessary to balance a thermal station using amplifier and coax 
compensation mode immediately after module installation (with little or no warm-up 
period), the output level should be set 1 dB lower than specified by the design print. 
This reduction in output level will be offset by an increase in internal amplifier gain 
as the thermal circuit in the amplifier warms up.