Cisco Cisco 1 GHz GainMaker Amplifier 安装指南
Balancing the Forward Path
47
Balancing the Forward Path
Be sure to use the correct procedure for forward path balancing. Refer to To Select the
Forward Path Balancing Procedure (on page 47) for help in identifying the procedure
that best fits your system installation and amplifier type.
Forward Path Balancing Procedure (on page 47) for help in identifying the procedure
that best fits your system installation and amplifier type.
Before you begin, also make sure that the amplifier module is configured according
to the specifications in the design print, and that the amplifier has warmed up for
approximately one hour.
to the specifications in the design print, and that the amplifier has warmed up for
approximately one hour.
To Select the Forward Path Balancing Procedure
Refer to the following table to direct you to the proper starting point to balance your
amplifier using your preferred method.
amplifier using your preferred method.
If you have ...
and you use ...
go to ...
an amplifier configured with
AGC
AGC
manual setup mode for
balancing and operation
balancing and operation
an amplifier configured with
AGC
AGC
thermal setup mode for
balancing and operation
balancing and operation
a thermal amplifier (no
AGC)
AGC)
amplifier only compensation
mode for balancing and
operation
mode for balancing and
operation
a thermal amplifier (no
AGC)
AGC)
amplifier and coax
compensation mode for
balancing and operation
compensation mode for
balancing and operation
an amplifier configured with
AGC
AGC
a trim network for balancing
Forward Path Balancing Using
Trim Networks (on page 66)
Trim Networks (on page 66)
Forward Path Balancing for AGC Stations Using Manual Setup Mode
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.
according to the specifications in the design print, and that the amplifier has warmed
up for approximately one hour.
To Set the Manual Backoff Level
You must adjust the manual backoff level.
Complete the following steps to set the manual backoff level.