User Manual

4 Configuring the Base Station
44
Configuring the Upconverter
The Upconverter includes 4 separate Upconverter modules. Three of the Upconverter
modules are used, each for a sector. The fourth Upconverter is a spare unit.
The Upconverter has five front panel push buttons for control, and an LCD display. The
Output Frequency and Gain of each Upconverter are sequentially displayed.
The Upconverter’s Gain is adjusted through the system test to support the required
output level to the antenna.
By viewing the sequential display on the LCD, verify that the frequency for all four
channels is 757.5 MHz.
; Note: The Upconverter Gain is preset in the Base Station rack for the overall required
downstream output level. Do not to change the Frequency and Gain settings unless a
significant change has occurred.
To change the Upconverter’s Gain using the Upconverter’s LCD:
1. Depress the e
L or Rf arrow navigation keys.
The LCD displays the modules’ Gain sequentially, as shown below:
2. When the LDC displays the screen with the variable to be changed, depress and
hold the central ENTER button for approximately one second, until a blinking cursor
is displayed.