E675JS0068Power Amplifier

1930-1990 MHz Installation & Service Manual G3L-1929- Multi-Carrier Power Amplifier  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A May 2003 Preliminary G3L-1929- Installation & Service Manual May 2003 © 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. Powerwave Technologies, Inc. Tel: (714) 466-1000 1801 E. St. Andrew Place (800) 473-1720 Santa Ana, CA 92705 Fax: (714) 466-5800 Web Site: www.powerwave.com  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A ii May 2003 G3L-1929- Installation and Service Manual Section 1. General Description 1-1 Introduction This manual contains information and procedures for the installation and operation of Powerwave Technologies, Inc.’s G3L-1929-120 Multi-Carrier Power Amplifier (MCPA). This manual is organ- ized into the following sections: 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 G3L-1929-120 Power Amplifier shown in figures 1-1 through 1-6, operates in the 60 MHz fre- quency band from 1930 MHz to 1990 MHz with channel spacing of 12.5 kHz. The amplifier provides a typical gain of 60 dB to produce a typical output of 60 Watts (47.8 dBm). The G3L-1929-120 am- plifier generates approximately 2300 BTUs of heat at full power. The amplifiers are modular in design, and ideally suited for use in GSM base stations. 1-3 Ordering Information Table 1-1 lists major system component numbers and descriptions for use in ordering booster amplifiers or components. Table 1-1 Major System Components Component Number Description G3L-1929-120 120-Watt Amplifier, +27 VDC 1-4 Functional and Physical Specifications Electrical, mechanical, and environmental specifications for the G3L-1929-75 amplifier are listed in tables 1-2, 1-3, and 1-4 respectively. 1-5 Equipment Changes Powerwave Technologies, Inc. reserves the right to make minor changes to the equipment, in- cluding but not limited to component substitution and circuitry changes. Changes that impact this manual may be incorporated in a later revision of the manual.  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 1-1 May 2003 G3L-1929- Installation and Service Manual Table 1-2 G3L-1929-75 Amplifier Electrical Specifications Frequency Range 1930 - 1990 MHz Channel Spacing 12.5 KHz Output Power: +50.8 dBm (120 Watts) Input Power -10.0 dBm max. RF Gain +60 dB ±1.0 dB @ +27Vdc, 25° C RF Gain Flatness over the operating frequency range ±0.1 dB over any 1.25 MHz (over the frequency range). Gain Flatness: ±0.5 dB (1930 MHz – 1990 MHz) Normal Operating Voltage +27 Vdc ±1V Nominal (±5%) 1Vpp ripple (100-120 Hz) max. Current Consumption: 27.5 Amps @ 27 Vdc, 25 °C, Prf = 60 Watts average 32 Amps @ 27 Vdc, 25 °C, Prf = 75 Watts maximum Abnormal Operating Voltage +21 Vdc to below +26 Vdc. Above +28 Vdc to +29 Vdc. RF Gain variation by Temp & Voltage + 1dB; 0 to 50°C Gain Variation Over Dynamic Range ±0.5 dB max./20 dB for 0 to -20 dB rated power output Intermodulation Distortion In-Band Spurious -65 dBc min. (Main signal power to Spurious @ (12.5 kHz) -55 dBc min @ +23 to +24 Vdc Input/Output VSWR. 1.5: 1 max @ 65° C Load Stability Infinite VSWR. all phases Output Isolation 20 dB min.  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 1-2 May 2003 G3L-1929-75 Installation and Service Manual Table 1-3 G3L-1929-120 Amplifier Mechanical Specifications Physical Dimension of MCPA (inches) Front panel: 13.98 W x 3.90 H x 0.118 D Body: 11.61 W x 3.75 H x 17.56 D Weight Approximately 28.6 pounds (13 killograms) Connector Type D-sub, Hybrid, Plug-in Type RF connector: PKZ 26-0020 series straight plug type (Phoenix Co.) refers to attached drawing. MCPA Front Panel Switch On/Off Switch and +27 Vdc Power Indicator Pin Outs A1 RF Input (Coaxial Contact) A2 +27 Vdc (Power Contact) A3 Ground (Power Contact) A4 RF Output (Coaxial Contact) 1 TX H 10 +27 V 2 TX L 11 COM SV 3 GND 12 AMP AO 4 RX H 13 AMP A1 5 RX L 14 AMP A2 6 GND 15 AMP A3 7 HERE LPA 16 NC 8 FF LPA 17 NC 21WA4 Connector Description 9 RESERVED Front Panel LED Display: LED type: SMD RUN Green (When MCPA is enabled) ALM Red (When any alarm occurred, LED is on) DC Green (When DC Power is ON, LED is on) Table 1-4 G3L-1929-120 Amplifier Environmental Specifications Operating Temperature -10 to + 60° C Storage Temperature -40 to + 85° C Relative Humidity 5 to 95% RH (non-condensing)  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 1-3 May 2003 G3L-1929- Installation and Service Manual Figure 1-1 Model G3L-1929-120 Amplifier Front Isometric View Figure 1-2 Model G3L-1929-120 Amplifier Rear Isometric View  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 1-4 May 2003 G3L-1929- Installation and Service Manual Figure 1-3 Model G3L-1929-120 Amplifier Top View Power ON/OFF Switch LED Indicator Figure 1-4 Model G3L-1929-120 Amplifier Front Panel  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 1-5 May 2003 G3L-1929- Installation and Service Manual l l 21WA4 Connector Figure 1-5 Model G3L-1929-120 Amplifier Rear Panel Figure 1-6 Model G3L-1929-120 Amplifier Side View  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 1-6 May 2003 G3L-1929- Installation and Service Manual Section 2. Installation 2-1 Introduction This section contains unpacking, inspection, installation instructions and…

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G3L-1929- Installation and Service Manual Figure 1-1 Model G3L-1929-120 Amplifier Front Isometric View Figure 1-2 Model G3L-1929-120 Amplifier Rear Isometric View  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 1-4 May 2003 G3L-1929- Installation and Service Manual Figure 1-3 Model G3L-1929-120 Amplifier Top View Power ON/OFF Switch LED Indicator Figure 1-4 Model G3L-1929-120 Amplifier Front Panel  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 1-5 May 2003 G3L-1929- Installation and Service Manual l l 21WA4 Connector Figure 1-5 Model G3L-1929-120 Amplifier Rear Panel Figure 1-6 Model G3L-1929-120 Amplifier Side View  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 1-6 May 2003

G3L-1929- Installation and Service Manual Figure 1-3 Model G3L-1929-120 Amplifier Top View Power ON/OFF Switch LED Indicator Figure 1-4 Model G3L-1929-120 Amplifier Front Panel  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 1-5 May 2003

G3L-1929- Installation and Service Manual Section 4. Principles of Operation 4-1 Introduction This section contains a functional description of the G3L-1929-120 Multi-Carrier Power Amplifier (MCPA). 4-2 RF Input Signal The maximum input power for all carrier frequencies to the amplifier should not exceed the limits specified in the appendix A specifications. 4-3 RF Output Load The load impedance should be as good as possible (VSWR of 1.5:1 or better) in the working band for good power transfer to the load. If the amplifier is operated into a filter, it will maintain its distortion characteristics outside the signal band even if the VSWR is infinite, provided the re- flected power does not exceed one watt. A parasitic signal of less than one-watt incident on the output will not cause distortion at a higher level than the normal forward distortion (i.e. –65 dBc). 4-4 Multi-Carrier Power Amplifier (MCPA) Functional Description The MCPA is a linear, feed-forward multi-carrier power amplifier that operates in the 60 MHz fre- quency band from 1930 MHz to 1990 MHz (refer to table 1-4 for amplifier specifications). The amplifier provides a gain of 60 dB to provide a typical output of 70 watts (48.8 dBm). Refer to fig- ure 4-1 for the amplifier functional block diagram. Each amplifier is a self-contained module and is functionally independent of any other MCPA in a system. The amplifiers are designed for paral- lel operation to achieve high peak power output. Each MCPA has an alarm board that monitors the amplifier performance. If a failure or fault occurs in an MCPA, it is transmitted to a subrack system via the D-subminiature 21WA4 connector at the rear of the module. The subrack reports all alarms to the host system. Continuously comparing active paths with passive references, and correcting for small variations through RF feedback controls maintain constant gain. All gain variations, for example those due to temperature, are reduced to the passive reference variations. The amplifier consists of the fol- lowing major functions: • Preamplifier • Main amplifier • Error amplifier • Alarm monitoring and control • First and second loop control circuits • Pilot tone generator  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 4-1 May 2003 G3L-1929- Installation and Service Manual Figure 4-1 Multi-Carrier Power Amplifier Functional Block Diagram 4-4.1 Preamplifier The carrier is applied to the input port of the amplifier. This signal is fed to the preamplifier stage where it is amplified using two stages of class A mode amplifiers. 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 approximately 14.5 dB of gain in the 1930 to 1990 MHz frequency band (refer to table 1-2 for amplifier specifications). The main amplifier employs class AB amplifi- cation for maximum efficiency. The error amplifier and feed forward loops are used to correct sig- nal non-linearity’s introduced by the class AB main amplifier. The error amplifier operates in class A mode. The RF signal from the preamp is coupled to an attenuator and phase shifter in the first feed-forward loop where it is phase shifted by 180 degrees and amplified in the premain ampli- fier. The output from the premain amplifier is fed to the class AB main amplifier. The signal output from the main amplifier is sampled using a coupler, and the sample signal is combined with the main input signal and input to the second feed-forward loop. The error signal is attenuated, phase shifted 180 degrees, then fed to the error amplifier where it is amplified to a level identical to the sample output from the main amplifier. The output from the error amplifier is then coupled back and added to the output from the main amplifier. The control loops continuously make adjustments to cancel out any distortion in the final output signals.  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 4-2 May 2003 G3L-1929- Installation and Service Manual 4-4.3 Alarm Monitoring and Control The alarm logic controls the +5 Vdc bias voltage that shuts down the amplifier. During routine op- eration, all normal variations are automatically compensated for by the feed-forward loop control. However, when large variations occur beyond the adjustment range of the loop control, a loop fault occurs. When this happens, an alarm indicator is illuminated on the front panel of the subrack. The fault is transmitted back to an external summary module via the external alarm in- terface connection on the front panel of the subrack. 4-4.4 First and Second Loop Control Circuits The primary function of the first loop is to provide 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 devel- oped in the main amplifier. The input signal is amplified by a preamplifier and fed to a coupler and delay line. The signal from the coupler is fed to the attenuator and phase shifter in the first loop. The first loop control section phase shifts the main input signals by 180 degrees and constantly monitors the output for correct phase and gain. The second loop control section obtains a sample of the distortion added to the output signals by the main amplifiers. The signal is phase shifted 180 degrees, then fed to the error amplifier where it is amplified to the same power level as the input sample. The signal is then coupled to the error signal of the main amplifier output. The final output is monitored by the second loop and adjusted to ensure that the signal distortion and intermodulation distortion (IMD) on the final output is can- celled out. 4-4.5 Pilot Tone Generator The basic idea of injecting a pilot tone is that if the pilot signal is suppressed, then the distortion from the main amplifier is also suppressed. To accomplish this,…

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G3L-1929- Installation and Service Manual Section 5. Maintenance 5-1 Introduction This section contains periodic maintenance and performance test procedures for the G3L-1929- 120 Multi-Carrier Power Amplifier (MCPA). NOTE Check your sales order and equipment warranty before attempting to service or re- pair the unit. 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. 5-2 Periodic Maintenance Periodic maintenance requirements and the intervals at which the tasks should be performed are listed in table 5-1. Table 5-1 Periodic Maintenance Task Interval Action Inspection: Cables and Connectors 12 Months Inspect signal and power cables for frayed insulation. Check RF connectors to ensure that they are tight. Performance Tests 12 Months Perform annual test per paragraph 5-4. Clean Fans/Heat Sinks 3 Months Inspect for debris. Remove dust with a soft cloth/brush or vacuum cleaner. 5-3 Test Equipment Required For Test Test equipment required to test the amplifier is listed in table 5-2. Equivalent test equipment may be substituted for any item, keeping in mind that a thermistor type power meter is required. NOTE All RF test equipment required must be calibrated to 0.05 dB resolution. Any devia- tion from the nominal attenuation must be accounted for and factored into all output readings. Table 5-2 Test Equipment Required Nomenclature Manufacturer Model Signal Generator H.P. 8656B 20 dB Attenuator, 250 Watt Bird Tenuline 20 dB Attenuator, 20 Watt (2 each) Bird Tenuline Spectrum Analyzer H.P. 8560E Coax Directional Coupler H.P. 778D Power Meter / Sensor H.P. 437B / 8481A Arbitrary Waveform Generator Sony AWG2021 Network Analyzer H.P. 8753C  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 5-1 May 2003 G3L-1929- Installation and Service Manual 5-4 Performance Test Performance testing should be conducted every 12 months to ensure that the amplifier system meets the operational specifications listed in Table 5-3. Also verify system performance after any amplifier module is replaced in the field. The test equipment required to perform the testing is listed in table 5-2, and the test setup is shown in figure 5-1. NOTE The frequencies used in this test are typical for an amplifier with a 60 MHz band from 1930 MHz to 1990 MHz. Select evenly spaced F1, F2, F3, and F4 frequencies that cover the instantaneous bandwidth of your system. 5-4.1 Amplifier Performance Test To perform these tests, proceed as follows: Connect test equipment as shown in figure 5-1. WARNING Do not apply any RF signals at this time. 5-4.1.1 Amplifier Spurious Emissions Test: With the RF input signal to the amplifier set to be as shown in Figure 5-1, use the spectrum ana- lyzer to measure the spurious emissions performance. Record test data in Table 5-3. Verify that it is within the specifications shown in table 1-2. Switch tested amplifier to OFF. 5-4.1.2 Gain Test: 1. Disconnect spectrum analyzer from test setup, and connect the network analyzer. 2. Set network analyzer as follows: A. Power output to -10 dBm max. B. Frequency start to 1930 MHz. C. Frequency stop to 1990 MHz. D. Normalize the network analyzer for gain and return loss. 3. Check the amplifier gain across the band from 1930 MHz to 1990 MHz. Gain should be as specified in table 1-1. Record test data in table 5-3. 5-4.1.3 Input Return Loss: Read and record the S 11 return loss measurement on network analyzer. Record test data in table 5-3.  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 5-2 May 2003 G3L-1929- Installation and Service Manual Figure 5-1 Amplifier Test Setup Diagram Table 5-3 G3L-1929-120 Amplifier Test Data Sheet DATE _________________________________ MODULE S/N _________________________ Test Conditions: Load and Source Impedance: 50 Ohms VSWR: < 1.5:1 Supply Voltage: +27 Vdc ±0.1 Vdc Test Specification Min Max Data RF Gain Vcc = 27 Vdc PO = See table 1-4 Freq. = 1930 – 1990 MHz 57.0 dB 58.0 dB Spurious Emissions Vcc = 27 Vdc PO = See table 1-4 1930 – 1990 MHz Band -65 dBc Gain Flatness Vcc = 27 Vdc PO = See table 1-4 1930 – 1990 MHz Band ±0.5 dB Input Return Loss Vcc = 27 Vdc PO = See table 1-4 1930 – 1990 MHz Band -14 dB PASS FAIL Tested by  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 5-3 May 2003 G3L-1929- Installation and Service Manual 5-5 Field Replacement of the Module The GL3-1929-120 multi-carrier power amplifier module can be replaced in the field on site by a qualified technician with experience maintaining RF power amplifiers and similar equipment: To replace a power amplifier module, proceed as follows: 1. Set On/Off switch on the front panel of the amplifier module to Off (down). 2. Loosen the two thumbscrews that secure amplifier module to the subrack. CAUTION When removing the amplifier from the subrack, it is very important to support the am- plifier such that the rear of the module does not suddenly drop when the guide rail disengages from the track. A drop such as this could damage the rear 21WA4 multipin connector. 3. With steady even pressure, use handle on front of amplifier to pull module out of subrack. 4. Install replacement in reverse order of steps 1 through 3 above.  Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A 5-4 May 2003

Page 1 of 78 Report No.: FC03-027A ADDENDUM TO FC03-027 FOR THE POWER AMPLIFIER, G3L-1929-120 FCC PART 24 AND PART 15 SUBPART B SECTION 15.109 CLASS A COMPLIANCE DATE OF ISSUE: SEPTEMBER 11, 2003 PREPARED FOR: Powerwave Technologies 1801 E. St. Andrew Place Santa Ana, CA 92705 PREPARED BY: Mary Ellen Clayton CKC Laboratories, Inc. 5473A Clouds Rest Mariposa, CA 95338 P.O. No.: 96165 W.O. No.: 80493 Date of test: June 3 - July 17, 2003 Report No.: FC03-027A This report contains a total of 78 pages and may be reproduced in full only. Partial reproduction may only be done with the written consent of CKC Laboratories, Inc. The results in this report apply only to the items tested, as identified herein. Page 2 of 78 Report No.: FC03-027A TABLE OF CONTENTS Administrative Information .............................................................................................3 Summary of Results .........................................................................................................4 Conditions for Compliance ..............................................................................................4 Approvals .........................................................................................................................4 Equipment Under Test (EUT) Description ......................................................................5 Equipment Under Test .....................................................................................................5 Peripheral Devices ...........................................................................................................5 Measurement Uncertainty ................................................................................................5 Temperature and Humidity During Testing.....................................................................6 FCC 2.1033(c)(3) User’s Manual ....................................................................................6 FCC 2.1033(c)(4) Type of Emissions ..............................................................................6 FCC 2.1033(c)(5) Frequency Range................................................................................6 FCC 2.1033(c)(6) Operating Power.................................................................................6 FCC 2.1033(c)(7) Maximum Power Rating ....................................................................6 FCC 2.1033(c)(8) DC Voltages .......................................................................................6 FCC 2.1033(c)(9) Tune-Up Procedure ............................................................................6 FCC 2.1033(c)(10) Schematics and Circuitry Description..............................................6 FCC 2.1033(c)(11) Label and Placement ........................................................................6 FCC 2.1033(c)(12) Submittal Photos ..............................................................................6 FCC 2.1033(c)(13) Modulation Information ...................................................................6 FCC 2.1033(c)(14)/2.1046/24.232(a) - RF Power Output...............................................7 FCC 2.1033(c)(14)/2.1047(b) - Audio Frequency Response...........................................11 FCC 2.1033(c)(14)/2.1047(b) - Modulation Limiting Response.....................................11 FCC 2.1033(c)(14)/2.1049(i) - Occupied Bandwidth......................................................11 FCC 2.1033(c)(14)/2.1051/24.238(a) - Spurious Emissions at Antenna Terminal .........50 FCC 2.1033(c)(14)/2.1053/24.238(a) - Field Strength of Spurious Radiation ................68 FCC 2.1033(c)(14)/2.1055(a) - Frequency Stability........................................................74 FCC 2.1091 - MPE Calculations .....................................................................................75 FCC 15.109 – Radiated Emissions ..................................................................................76 Page 3 of 78 Report No.: FC03-027A ADMINISTRATIVE INFORMATION DATE OF TEST: June 3 - July 17, 2003 DATE OF RECEIPT: June 3, 2003 PURPOSE OF TEST: To demonstrate the compliance of the Power Amplifier, G3L-1929-120 with the requirements for FCC Part 24 and Part 15 Subpart B Sections 15.109 Class A devices. Addendum A is to revise the radiated spurious emissions data. TEST METHOD: FCC Part 24 and ANSI C63.4 (1992) FREQUENCY RANGE TESTED: 9 kHz – 20 GHz MANUFACTURER: Powerwave Technologies 1801 E. St. Andrew Place Santa Ana, CA 92705 REPRESENTATIVE: Jeffrey Dale TEST LOCATION: CKC Laboratories, Inc. 110 Olinda Place Brea, CA 92621 Page 4 of 78 Report No.: FC03-027A SUMMARY OF RESULTS As received, the Powerwave Technologies Power Amplifier, G3L-1929-120 was found to be fully compliant with the following standards and specifications: United States ! FCC Part 24 and Part 15 Subpart B Section 15.109 Class A using: ! ANSI C63.4 (1992) method CONDITIONS FOR COMPLIANCE Installed Steward 28A2029-0A0 on internal DC power cable. APPROVALS Steve Behm, Director of Engineering Services and Quality Assurance QUALITY ASSURANCE:TEST PERSONNEL: Joyce Walker, Quality Assurance Administrative Manager Eddie Wong, EMC Engineer Septimiu Apahidean, Lab Manager Page 5 of 78 Report No.: FC03-027A EQUIPMENT UNDER TEST (EUT) DESCRIPTION The EUT tested by CKC Laboratories was representative of a production unit. The following model was tested by CKC Laboratories on WO# 80493: G3L-1929-75-"Harley" Since the time of testing the manufacturer has chosen to use the following model name in its place. Any differences between the names does not affect their EMC characteristics and therefore complies to the level of testing equivalent to the tested model name shown on the data sheets: G3L-1929-120 EQUIPMENT UNDER TEST Power Amplifier Manuf: Powerwave Technologies Model: G3L-1929-120 Serial: 002 FCC ID: pending PERIPHERAL DEVICES The EUT was tested with the following peripheral dev…

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