User's Manual

SCA 9350-30 Installation and Service Manual
 Copyright Powerwave Technologies, Inc., December 2001. All rights reserved
044-xxxxx Rev. x 3-1 December 2001
Section 3 Operating Instructions
3-1 Introduction
This section contains operating instructions for the single channel cellular amplifier system.
3-2 Location And Function Of Amplifier Indicators
The front panel LED is located to the right of the 20-pin Data connector and indicates the amplifier
status.
• Green means the amplifier is operating properly.
• Red indicates an alarm or off condition.
The nature of the alarm can only be determined through the software interface of the Base-
Transceiver System (BTS). Please consult the BTS manual for details on monitoring amplifier
status.
Figure 3-1 Front Panel Indicators
3-3 Initial Start-Up And Operating Procedures
To perform the initial start-up, proceed as follows:
1. Verify that all input and output cables are properly connected.
CAUTION
Before applying power, make sure that the input and output of the amplifier are
properly terminated at 50 ohms. Do not operate the amplifier without a load attached.
Refer to table 1-1 for input power requirements. Excessive input power may damage
the amplifier
NOTE
The output coaxial cable between the amplifier and the antenna must be 50 ohm
coaxial cable. Use of any other cable will distort the output.
2. Turn on supply that provides -48 Vdc to the amplifier system. Do not apply an RF signal to
the amplifier system
3. Verify that the LED is lit and the color Green.
4. Turn on external exciter/transceiver and apply RF input signals. Adjust the input power to
achieve the desired output power. Refer to the BTS manual for instructions on performing
this step.
Front Panel Status Indicator