Powerwave Technologies 5JS0064 User Manual

869-894 MHz

Installation & Service

Manual

Model SCA 9321-30C

Single-Channel Cellular Amplifier

044-xxxxx Rev.A February 2003

 Copyright Powerwave Technologies, Inc., February 2003. All rights reserved

SCA 9321-30C Installation & Service Manual

© 2003 Powerwave Technologies Incorporated. All rights reserved.
Powerwave Technologies, and the Powerwave logo are registered trademarks
Powerwave Technologies, Inc. reserves the right to make changes to the documentation and

equipment, including but not limited to component substitution and circuitry changes. Changes
that impact this manual may subsequently be incorporated in a later revision of this manual.

February 2003

Powerwave Technologies, Inc. Tel: [phone]
1801 East St. Andrew Place [phone]
Santa Ana, CA 92705 Fax: [phone]

Web Site: www.powerwave.com

 Copyright Powerwave Technologies, Inc., February 2003. All rights reserved

044-xxxxx Rev. A ii February 2003

SCA 9321-30C Installation & Service Manual

Table Of Contents

Par. Section 1 Page
No. General Description No.

1-1 Introduction............................................................................................................................. 1-1

1-2 General Description................................................................................................................. 1-1

1-3 Functional and Physical Specifications ....................................................................................1-1

1-4 Equipment Changes................................................................................................................. 1-1

Section 2

Installation

2-1 Introduction............................................................................................................................. 2-1

2-2 Electrical Service Recommendations ....................................................................................... 2-1

2-3 Unpacking and Inspection ....................................................................................................... 2-1

2-4 Installation Instructions...........................................................................................................2-2

2-5 Amplifier Module Connectors.................................................................................................. 2-2

2-5.1 Data I/O Connector ................................................................................................................. 2-3

2-5.2 Amplifier RF Connectors......................................................................................................... 2-4

2-5.3 DC Power Connector...............................................................................................................2-4

Section 3

Operating Instructions

3-1 Introduction............................................................................................................................. 3-1

3-2 Location and Function of Amplifier Indicators......................................................................... 3-1

3-3 Initial Start-Up and Operating Procedures ............................................................................... 3-1

Section 4

Principles of Operation

4-1 Introduction............................................................................................................................. 4-1

4-2 RF Input Signal.......................................................................................................................4-1

4-3 RF Output Load....................................................................................................................... 4-1

4-4 SCA 9321-30C Amplifier........................................................................................................ 4-1

4-4.1 Driver Amplifier...................................................................................................................... 4-2

4-4.2 Main Amplifier ....................................................................................................................... 4-2

4-4.3 Power Distribution................................................................................................................... 4-2

4-4.4 Multifunction Board................................................................................................................ 4-2

Section 5

Maintenance

5-1 Periodic Maintenance.............................................................................................................. 5-1

044-xxxxx Rev. A February 2003

 Copyright Powerwave Technologies, Inc., February 2003. All rights reserved

iii

SCA 9321-30C Installation & Service Manual

Section 6

Troubleshooting

6-1 Introduction............................................................................................................................. 6-1

6-2 Trouble shooting...................................................................................................................... 6-1

6-3 Return for Service Procedures.................................................................................................. 6-1

6-3.1 Obtaining an RMA.................................................................................................................. 6-1

6-3.2 Repackaging for Shipment....................................................................................................... 6-1

List Of Illustrations

Figure Page
No. No.

1-1 SCA 9321-30C Amplifier........................................................................................................ 1-3

2-1 SCA 9321-30C Front Panel View............................................................................................2-2

2-2 Data I/O Connector ................................................................................................................. 2-3

2-3 DC Power Connector............................................................................................................... 2-4

3-1 Front Panel Indicators ............................................................................................................. 3-1

4-1 SCA 9321-30C Amplifier Block Diagram................................................................................ 4-1

List Of Tables

Table Page
No. No.

1-1 SCA 9321-30C Single-Channel Cellular Amplifier Functional Specifications.......................... 1-2

2-1 Data I/O Connector Pin Definition........................................................................................... 2-3

2-2 Amplifier RF Connector Definition ......................................................................................... 2-4

2-3 DC Power Connector Definition ............................................................................................. 2-4

6-1 Troubleshooting....................................................................................................................... 6-1

044-xxxxx Rev. A February 2003

 Copyright Powerwave Technologies, Inc., February 2003. All rights reserved

iv

SCA 9321-30C Installation & Service Manual

Section 1 General Description

1-1 Introduction

This manual contains information and procedures for installation, operation, and maintenance of
Powerwave’s SCA 9321-30C (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 9321-30C (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 capable 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 circuitry 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, in­cluding 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.

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SCA 9321-30C Installation & Service Manual

Table 1-1 SCA 9321-30C Single-Channel Cellular Amplifier Functional Specifications

Frequency Range 869-894 MHz
Nominal Input Power -0.2 dBm
Total Output Power 30 W (44.8 dBm) maximum
RF Gain at 882 MHz 45 +/- 0.5 dB
Gain Variation Over All Condi-

tions:
Output Protection: Mismatch Protected
Input Port Return Loss: -14 dB (Min)
Out of Band Spurious: -50 dBc (max)
Spectral Mask Frequency Removed From Carrier GSM EDGE

Duty Cycle: Continuous
DC Input Power: -48 VDC; 2.9 amps typical; 4.2 amps max.

Heat Dissipation 375 BTUs typical
Operating Temperature: 0 ºC. to +60 ºC.
Storage Temperature: -40 ºC. to +75 ºC.
Operating Humidity: 5 % - 95 % Relative Humidity (Noncondensing)
Storage Humidity: 5 % - 95 % Relative Humidity (Noncondensing)
RF Input / Output Connector SMA Female (Input) / Type N Female (Output)
DC Power Connector 3-Pin D-Subminiature (20 A Contacts)
Data I/O Connector 20-Pin SCSI
Dimensions: 2.55” High, 9.48” Wide, 11.85” Deep

±2.0 dB

200 kHz -31 dBc -31 dBc
250 kHz -34 dBc -34 dBc
400 kHz -61 dBc -57 dBc
600 kHz -71 dBc -71 dBc
1200 kHz -74 dBc -74 dBc
1800 kHz -76 dBc -76 dBc
6000 kHz -81 dBc -81 dBc

-36 to –60 VDC, 140 watts typical; 200 watts max.

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