User's Manual

SCA 9350-30 Installation and Service Manual
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044-xxxxx Rev. x
1-1 December 2001
Section 1 General Description
1-1 Introduction
This manual contains information and procedures for installation, operation, and maintenance of
Powerwave’s SCA 9350-30 (Nortel Model No. NTQA37AA) single-channel cellular amplifier. The
manual is organized into six sections as follows:
Section 1. General Description
Section 2. Installation
Section 3. Operating Instructions
Section 4. Principles of Operation
Section 5. Maintenance
Section 6. Troubleshooting
1-2 General Description
The SCA 9350-30 (see figure 1-1) is a single-channel power amplifier that operates in the 25 MHz
frequency band from 869 MHz to 894 MHz. It is designed for use in an amplifier system that is
modular in design, and is ideally suited for use in GSM/EDGE base stations. The amplifier is ca-
pable of transmitting at 30 watts of power in either GMSK or EDGE modulation. All solid-state, the
amplifier is designed to provide trouble-free operation with minimum maintenance. The system's
modular construction and unique and highly effective operational status and fault monitoring cir-
cuitry help minimize downtime. The turn-on and turn-off sequences of voltages are fully automatic,
as is overload protection.
Each amplifier module has an I/O connector that allows the host system to monitor the amplifier
module performance. Primary power for the amplifier is –48 Vdc. The amplifier has an integrated
heat sink for cooling.
1-3 Functional And Physical Specifications
Functional and physical specifications for the amplifier are listed in table 1-1.
1-4 Equipment Changes
Powerwave Technologies, Inc. reserves the right to make minor changes to the equipment, in-
cluding but not necessarily limited to component substitution and circuitry changes. Changes that
impact this manual may subsequently be incorporated in a later revision of this manual.