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Powerwave Technologies G3L-929-135 Installation And Service Manual

Multi-carrier power amplifier
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G3L-929-135 Multi-Carrier
Power Amplifier
Installation and
Service Manual
044-05xxx Rev A
January 2006

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Summary of Contents for Powerwave Technologies G3L-929-135

  • Page 1 G3L-929-135 Multi-Carrier Power Amplifier Installation and Service Manual 044-05xxx Rev A January 2006...
  • Page 2 © 2006 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.
  • Page 3 Warnings, Cautions, and Notes Warnings, cautions, and notes are found throughout this manual. The associated icons in warnings and cautions are used to quickly identify a potential condition that could result in the consequences described below if precautions are not taken. Notes clarify and provide additional information to assist the user. WARNING This warning symbol means danger.
  • Page 4 Revision Record Revision Record Revision Letter Date of Entry Reason for Change January, 2006 Original version of product 044-05xxx Rev A...

  • Page 5: Table Of Contents

    Table of Contents Chapter Number Title Page Chapter 1 General Description Introduction ..........................1-1 General Description ........................1-1 Functional and Physical Specifications ..................1-4 Ordering Information........................1-5 General Safety ................Error! Bookmark not defined. 1-5.1 Electronic Modules ...............Error! Bookmark not defined. Chapter 2 Installation Introduction...
  • Page 6 Figure Number Figure Title Page Figure 1-1. Model G3L-929-135 Amplifier – Front and Rear Isometric View ..........1-1 Figure 1-2. Model G3L-929-135 Amplifier Side View ................1-2 Figure 1-3. Model G3L-929-135 Amplifier Bottom View ................1-2 Figure 1-4. Model G3L-929-135 Amplifier Front Panel................1-3 Figure 2-1.

  • Page 7: Chapter 1 General Description

    Glossary of Terms 1-2 General Description The G3L-929-135 Power Amplifier, shown in Figure 1-1through Figure 1-4, operates in the 5 MHz frequency band from 935 MHz to 940 MHz with an instantaneous bandwidth of not more than 5 MHz. The instantaneous bandwidth is the maximum frequency band in which any two or more signals can occupy .The amplifier’s instantaneous bandwidth is set automatically and does not require any manual setup.

  • Page 8: Figure 1-2. Model G3L-929-135 Amplifier Side View

    (0.99 cm) (43.33 cm) 12.09 in. 13.96 in. (30.70 cm) (35.45 cm) 19.58 in. (49.73 cm) Figure 1-2. Model G3L-929-135 Amplifier Side View 1.90 in. 3.86 in. (4.82 cm) (9.80 cm) Figure 1-3. Model G3L-929-135 Amplifier Bottom View 044-05xxx Rev A...

  • Page 9: Figure 1-4. Model G3L-929-135 Amplifier Front Panel

    ESET Combo Connector – Power. Alarms, and RF I/O RS-232 Port Figure 1-4. Model G3L-929-135 Amplifier Front Panel 044-05xxx Rev A...

  • Page 10: Table 1-1. G3L-929-135 Amplifier Specifications

    Specifications Electrical, mechanical, and environmental specifications for the G3L-929-135 amplifier are listed in Table 1-1. Table 1-1. G3L-929-135 Amplifier Specifications Frequency Range 935-940 MHz; Maximum Instantaneous Bandwidth 5 MHz bandwidth (lowest to highest transmitted frequency) Carrier Types GSM (GSM 11.21) EDGE (TS 25.141)

  • Page 11: Ordering Information

    1-4 Ordering Information Table 1-2 lists major system component numbers and descriptions for use in ordering. Table 1-2. Major System Components Model Number Description G3L-929-135 135-Watt Amplifier, +27 Vdc *Amplifier sub-racks sold and described separately 044-05xxx Rev A...
  • Page 12 (Page intentionally left blank) 044-05xxx Rev A...

  • Page 13: Chapter 2 Installation

    • Powerwave may not accept returns without a return authorization. 2-3 Air Conditioning Each G3L-929-135 amplifier generates 1981 BTU/hour of heat at full 135-Watt power. A 1-ton air conditioner offsets 12,000 BTUs per hour of heat. Each sub-rack, exclusive of amplifiers, generates...

  • Page 14: Electrical Load

    42 BTU per hour of heat. The G3L-929-135 amplifier is designed to operate within the extended low temperature and high temperature environments defined in Table 1-1. Table 2-1 describes the heat load (at 120 Watts typical) for a 3-sector (70%), 2-sector (80%), omni (90%), and typical (100%) site.

  • Page 15: Installation Instructions

    2-5 Installation Instructions Install the G3L-929-135 amplifier as follows: WARNING Turn off external primary DC power before connecting DC power cables. 2-5.1 Installing the Amplifier into a Sub-rack 1. Inspect the 21WA4 male combo connector (Figure 2-2) on the rear of each amplifier. Verify that all pins are straight, no pins are recessed, packing material is removed, and that the alignment shield is not bent.

  • Page 16: 2-5.2 Combo Connector

    2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Figure 2-2. Combo Connector (Male, on Rear of G3L-929-135 Amplifier Module) Table 2-3. G3L-929-135 Amplifier Combo Connector Signal List Pins/Signal Names RF Input (Coaxial Contact)

  • Page 17: Operating Instructions

    3-2 Controls and Indicators The controls and indicators for the G3L-929-135 Power Amplifier consist of the primary power RESET toggle switch, the LED STATUS indicator, and the RJ-11 PC Interface as shown in Figure 3-1.

  • Page 18: Pc Interface

    Table 3-1. Status Indicator Colors and Status Control/Indicator Description STATUS (Multi-colored LED Color MCPA Status LED Indicator) Green (solid) RF enabled, Reset/On/Off switch set to On (middle position). Operation normal. Green (blinking) Standby. Yellow (solid) Minor* alarm - APC function enabled. Yellow Blinking VSWR Warning.

  • Page 19: Principles Of Operation

    Chapter 4 Principles of Operation 4-1 Introduction This chapter contains functional descriptions of the G3L-929-135 Multi-Carrier Power Amplifier (MCPA). 4-2 RF Input Signal The maximum input power for all carrier frequencies to the MCPA should not exceed the limits specified in Table 1-1...

  • Page 20: 4-4.1 Preamplifier

    Figure 4-1. Functional Block Diagram 4-4.1 Preamplifier The RF carriers are applied to the input port of the MCPA, where they are fed to the preamplifier stage. The preamplifier provides two stages of class-A mode-amplification. The output of the preamplifier is then split into two paths, one to the main amplifier and one to the error amplifier. 4-4.2 Main and Error Amplifiers The main amplifier provides a balance of gain and power and employs class AB amplification for maximum efficiency.

  • Page 21: 4-4.4 First And Second Loop Control Circuits

    4-4.4 First and Second Loop Control Circuits The primary function of the first loop is to amplify the carrier signals and isolate an error signal for the second loop. The primary function of the second loop is to amplify the error signal to cancel out spurious products developed in the main amplifier.

  • Page 22: Amplifier Alarms

    4-7 Amplifier Alarms The amplifier alarms are listed and described in Table 4-1. The front panel LEDs are described in Chapter 3. Table 4-1. G3L-929-135 Alarm States Major Alarm - Minor Alarm - Causes MCPA RF section to be disabled...
  • Page 23 Records internal DC Loop converges. Tries to auto Loop fault event, system Loop convergence fail Major recover 10 times before Fail disable event, each permanent shut down. auto recovery event* Auto-recovery once the voltage Records internal DC fail Minor Internal Internal voltages failed or out is within the range.
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  • Page 25: Chapter 5 Maintenance

    5-1 Introduction This chapter contains periodic maintenance and performance test procedures for the G3L-929-135 Multi-Carrier Power Amplifier (MCPA). Note Do not break the seals on equipment under warranty or the warranty will be null and void. Do not return equipment for warranty or repair service until proper shipping instructions are received from the factory.

  • Page 26: Amplifier Performance Test

    Table 5-2. Test Equipment Required Nomenclature Manufacturer Model Signal Generator Agilent 8656B 20 dB Attenuator, 250 Watt Bird 20 dB Attenuator, 20 Watt (2 each) Bird Tenuline Spectrum Analyzer Agilent 8560E Coax Directional Coupler Agilent 778D Power Meter / Sensor Agilent 437B / 8481A Arbitrary Waveform Generator...

  • Page 27: 5-4.2 Gain Test

    20 dB 27 Vdc Directional HP 437B 30 dB Coupler Attn RF Out G3L-929-135 PYTHON Multi- Channel Power Amplifier 250 W Gain = 63 dB High Pwr 20 dB RF In Output = 135 W = +51.3 dBm Attn Sensor...

  • Page 28: 5-4.3 Input Return Loss

    5. Check the amplifier gain across the band from 935 MHz to 940 MHz. Gain should be as specified in Table 1-1. Record test data in Table 5-3. 27 Vdc RF Out 250 W G3L-929-135 PYTHON Multi- Channel Power Amplifier 40 dB Network Gain = 63 dB...

  • Page 29: 5-4.4 Test Data Sheet

    5-4.4 Test Data Sheet Record the amplifier’s performance test data below. DATE MODULE S/N Test Conditions: Load and Source Impedance: 50 Ohms VSWR: < 1.5:1 Supply Voltage: +27 Vdc ±0.1 Vdc Table 5-3. Amplifier Performance Data Test Specification Data RF Gain Vcc = 27 Vdc PO = See Table 1-1 62.5 dB...
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  • Page 31: Appendix A Abbreviations And Acronyms

    Appendix A Abbreviations and Acronyms Below is a list of the abbreviations and acronyms used in the industry. Abbreviation/ Definition Acronym ACLR Adjacent Channel Leakage Power Ratio Adjacent Channel Power Analog-to-Digital Conversion {Analog-to-Digital Converter {Automatic Data Collection Amplitude Modulation AMPS Advanced Mobile Phone System ANSI American National Standards Institute...
  • Page 32 Abbreviation/ Definition Acronym deciBels Referenced to a carrier level Reference to one milliwatt Reference to one watt Deutsches Insitut für Normung eV DLNA Duplexer Low Noise Amplifier DPTT Digital Push To Talk DQPSK Differential Quadrature Phase Shift Keyed Digital Signal Processing Device Under Test Estimated Completion Date Electronic Counter Measure...
  • Page 33 Abbreviation/ Definition Acronym Global System for Mobile Communications High Pass Filter Hardware Hertz In Accordance With Integrated Circuit InterModulation Distortion Input Return Loss IS-54 Interim Standard 54 for TDMA IS-95 Interim Standard 95 for CDMA ISDN Integrated Services Digital Network Industrial, Scientific and Medical unlicensed frequency bands {International Organization for Standardization {ISOlator...
  • Page 34 Personal Handyphone System – Japan Product Life Cycle Phase Locked Loop {Phase Modulation {Preventive Maintenance Peak to Minimum Ratio Purchase Order Parts Per Million {PCS Single Channel {Product Serialization Code PSTN Public Switched Telephone Network Powerwave Technologies, Inc. 044-05xxx Rev A...
  • Page 35 Abbreviation/ Definition Acronym Push To Talk PWAV PowerWAVe Quality Assurance Quadrature Amplitude Modulation Resolution BandWidth Radio Frequency Radio Frequency Interference Request For Quotation RF Solutions RFSU RF Switching Unit Return Goods Order Relative Humidity Return Loss {Rack-Mounted Amplifier {Return Material Authorization Reliability Monitoring Plan (Procedure) Root Mean Square Root Sum Square...
  • Page 36 Abbreviation/ Definition Acronym Transceiver (Transmit / Receiver) Unit Transmit, Transmitter Use As Is UART Universal Asynchronous Receiver Transmitter Upper Control Limit UCLR Upper Control Limit for Range Upper Guardband Limit Underwriters Laboratories UMTS Universal Mobile Telecommunications System Unit Nominal Level Unit Reference Gain Upper Specification Limit Unit Under Test...
  • Page 37 NOTES...
  • Page 38 Tel: +852 2512 6123 Fax: +46 8 540 823 40 Fax: +852 2575 4860 ©Copyright January 2005, Powerwave Technologies, Inc. All Rights reserved. Powerwave, Powerwave Technologies, The Power in Wireless and the Powerwave logo are registered trademarks of Powerwave Technologies, Inc.

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