Cisco Cisco 1 GHz GainMaker Amplifier インストールガイド
Chapter 3 Balancing and Setup
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 one of the following formulas to determine the correct AGC pad value.
1 Use one of the following formulas to determine the correct AGC pad value.
High Gain Dual, Low Gain Dual, and Balanced Triple: AGC pad value = RF
output level at pilot frequency (main output port) - 34 dB
Unbalanced Triple: AGC pad value = RF output level at pilot frequency (main
output port) - 26 dB
2 After finding the correct AGC pad value, install it in the amplifier in the AGC pad
slot. The AGC setup illustration above 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.
Complete the following steps to align the AGC module.
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