Cisco GainMaker Optoelectronic Node 1GHz with 65 86 MHz Split Installation Guide
Forward Path Balancing for AGC Stations Using Thermal Setup Mode
Output levels are measured at the pilot frequency.
The standard single-pilot AGC makes amplifier output adjustments based on the
level of the pilot frequency carrier. Activate the pilot carrier with its final
unscrambled video source before beginning balance and alignment.
The following diagram shows the location of the AGC related switch, controls, and
AGC pad.
To Select the AGC Pad Value
1 Use the following formula to determine the correct AGC pad value for the High
Gain Dual and Balanced Triple.
AGC pad value = RF output level at pilot frequency (main output port) - 34
dB
2 After finding the correct AGC pad value, install it in the amplifier in the AGC
pad slot. The preceding AGC setup illustration also shows the location of the
AGC pad.
3 Proceed to To Align the AGC Module.
To Align the AGC Module
Complete the following steps to align the AGC module.
1 Make sure that switch S1 is set to position 1.
1 Make sure that switch S1 is set to position 1.
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