E675JS0063Amplifier, MCA9129-90-A

MCA9129-90-A Installation & Service Manual
Copyright Powerwave Technologies, Inc., July 2001. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data. 044-05060 Rev. AC1-1July 2001November 2002 Section 1 General Description 1-1 Introduction This manual contains information and procedures for installation, operation, and maintenance of Powerwave’s MCA9129-90 MCA9129-90-A multicarrier cellular amplifier. The manual is organ- ized 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 6Troubleshooting 1-2 General Description The MCA9129-90MCA9129-90-A (see figure 1-1) is a linear, feed-forward power amplifier that operates in the 25 MHz frequency band from 869 MHz to 894 MHz. The amplifier can simultane- ously transmit multiple frequencies, with better than -65 dBc third order intermodulation distortion (IMD) at 100 watts output, or –60 dBc IMD at 120 watts output. It is designed for use in an ampli- fier system that is modular in design, and is ideally suited for use in AMPS/TDMA/CDMA base stations. When used in a subrack employing four MCA9129-90 MCA9129-90-A amplifiers, the system offers up to 360 watts output at –65dBc IMD performance level (430 watts output at –60dBc IMD). The plug-in Model MCA9129- 90MCA9129-90-A amplifier modules can each provide 120 watts of power and function com- pletely independently of each other. The amplifier modules are designed for parallel operation to produce high peak power output and backup redundancy for remote applications. All solid-state, the system is designed to provide trouble-free operation with minimum maintenance. The sys- tem's modular construction and unique and highly effective LED-based operational status and fault indicators help minimize downtime. The turn-on and turn-off sequences of voltages are fully automatic, as is overload protection and recycling. Inadvertent operator damage from front panel manipulation is virtually impossible. Each amplifier module has a status connector that allows the host system to monitor the amplifier module performance. The front panel of each amplifier module has unit level status/fault indica- tors and an RF on/off/reset switch. Primary power for the amplifier is +27 Vdc. Cooling for each plug-in amplifier module is provided by three fans, two mounted on the front and one on the rear of the module. The fans draw outside air through the front of the module and exhaust hot air out through the rear of the module. 1-3 Functional and Physical Specifications Functional and physical specifications for the amplifier are listed in tables 1-2 and 1-3. 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. To that end, we ask that you, our customer, share with us any information acquired in field situations that would enhance this manual. MCA9129-90-A Installation & Service Manual
Copyright Powerwave Technologies, Inc., July 2001. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data. 044-05060 Rev. AC1-2July 2001November 2002 1-5 Ordering Information Table 1-1 following gives the part numbers and descriptions to be used when ordering either an entire amplifier or replacement fans. Table 1-1 Major Amplifier Components Model NumberDescription MCA9129- 90MCA9129-90- A 100 W 869-894 MHz MCPA Module. 800-01024- 001800-01779- 001 Front fan assembly, large. 800-01025- 001800-01779- 002 Front Rear fan assembly, small 800-00781-002Rear fan assembly. NOTE A quality transmit filter or duplexer must be installed after this amplifier to ensure FCC Type Acceptance of the amplifier. The filter/duplexer should be rated for at least 500 Watts average power and 5000 Watts instaneous power (minimum) when four amplifiers per subrack are installed. Table 1-2 MCA9129-90 MCA9129-90-A Multicarrier Cellular Amplifier Functional Specifications, 100 Watts Frequency Range869-894 MHz (25 MHz Bandwidth) Total Maximum Input Power-12 dBm Total Output Power100 W typical (1 Module) BTUs @ 100 W3813 Intermodulation Distortion and In-Band Spurious: -65 dBc (Min) @ +24 +26 to +28 Vdc @ 100 Watts (-55 dBc (Min) @ +23 to + 24 Vdc) RF Gain at 880 MHz62 dB Gain Flatness:
0.7 dB @ 27 Vdc
1 Vdc Gain Variation Over Temperature:
0.3 dB from 23 to 30 Vdc Output Protection:Mismatch Protected Input Port Return Loss:-14 dB (Min) Harmonics:Better than -50 dBc Out of Band Spurious:Better than -60 dBc Duty Cycle:Continuous DC Input Power: +27 Vdc
1 Vdc, 45 36 Amps Max @ 100 Watts Operational +21 Vdc to 30 Vdc Operating Temperature:0 ºC. to +50 ºC. Storage Temperature:-40 ºC. to +85 ºC. Operating Humidity:5 % - 95 % Relative Humidity (Noncondensing) Storage Humidity:5 % - 95 % Relative Humidity (Noncondensing) DC Input, Summary Alarm, and RF Input / Output Connectors: 21-Pin D-Subminiature Combo Connector plus single- pin D-Sub connector for additional DC capability. Weight45 pounds Dimensions:15.72” (9U) High, 5.50” Wide, 17.1116.75” Deep MCA9129-90-A Installation & Service Manual
Copyright Powerwave Technologies, Inc., July 2001. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data. 044-05060 Rev. AC1-3July 2001November 2002 MCA9129-90-A Installation & Service Manual
Copyright Powerwave Technologies, Inc., July 2001. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data. 044-05060 Rev. AC1-4July 2001November 2002 NOTE A quality transmit filter or duplexer must be installed after this amplifier to ensure…

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MCA9129-90-A Installation & Service Manual
Copyright Powerwave Technologies, Inc., July 2001. All rights reserved 044-05060 Rev. C4-1July 2001November 2002 Section 4 Principles of Operation 4-1 Introduction This section contains a functional description of the Multicarrier Cellular Amplifier. 4-2 RF Input Signal The maximum input power for all carrier frequencies should not exceed the limits specified in ta- ble 1-2. For proper amplifier loop balance, the out of band components of the input signals should not exceed -40 dBc. The input VSWR should be 2:1 maximum (or better). 4-3 RF Output Load The load impedance should be as good as possible (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 reflected 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 System Functional Description The MCA9129-90MCA9129-90-A amplifier is a linear, feed-forward power amplifier that operates in the 25 MHz frequency band from 869 MHz to 894 MHz. A typical four-module system is shown in figure 4-1. The power output specification is listed in table 1-2. Each amplifier is a self- contained plug-in module and is functionally independent of the other amplifier modules. The amplifier modules are designed for parallel operation to achieve high peak power output, and for redundancy in unmanned remote locations. Each amplifier in the system can simultaneously transmit multiple carrier frequencies, at an average total power output of 90 watts (1 amplifier module in a subrack unit) to 360 watts (4 amplifier modules), with -65 dBc third order intermodula- tion distortion (IMD). Each amplifier in the system has been FCC tested to simultaneously transmit multiple carrier frequencies, at an average total power output of 108 watts (1 amplifier module in a subrack unit) to 430 watts (4 amplifier modules), with -60 dBc third order intermodulation distortion (IMD). Refer to the MCR4109-1 subrack installation and service manual (044-05061) for com- plete system level power and IMD specifications. The output from each amplifier is an amplified composite signal of approximately 100 watts at –65dBc IMD (120 watts at –60dBc IMD) before combiner losses. All phase and gain corrections are performed on the signal(s) in the individual amplifier modules. In a four -module system, the amplifier outputs are fed to a power combiner and combined to form a composite RF output of up to 360 watts at –65dBc IMD (430 watts at –60dBc IMD). Each amplifier module has an alarm and display board that monitors the amplifier performance. If a failure or fault occurs in an amplifier module, it is displayed on the individual amplifier front panel. MCA9129-90-A Installation & Service Manual
Copyright Powerwave Technologies, Inc., July 2001. All rights reserved 044-05060 Rev. C4-2July 2001November 2002 Amplifier SubrackAmplifier Subrack MCA9129-90-A RS-485 Alarm Interface VVA C o m b i n e r True RMS Gain Adjust Splitter Micro Processor (DC, RF Relay, Alarms) ISO ISO ISO ISO ISO Sample Alarm Alarm Alarm Alarm Ctrl 4x +27VDC 4x Ground RF Input RF Output Form-C Alarms MCA9129-90-A MCA9129-90-A MCA9129-90-A Amplifier SubrackAmplifier Subrack MCA9129-90 RS-485 Alarm Interface VVA C o m b i n e r True RMS Gain Adjust Splitter Micro Processor (DC, RF Relay, Alarms) ISO ISO ISO ISO ISO Sample Alarm Alarm Alarm Alarm Ctrl 4x +27VDC 4x Ground RF Input RF Output Form-C Alarms MCA9129-90 MCA9129-90 MCA9129-90 Figure 4-1 MCA9129-90MCA9129-90-A Four Module Amplifier System 4-5 MCA9129-90MCA9129-90-A Amplifier Module The amplifier module, figure 4-2, has an average output of 120 watts power (1200 watts peak power) with intermodulation products suppressed to better than -65 dBc below carrier levels at 100 watts output, -60 dBc at 120 watts output. The amplifier provides an amplified output signal with constant gain and phase by adding approximately 30 dB of distortion cancellation on the out- put signal. Constant gain and phase is maintained by continuously comparing active paths with passive references, and correcting for small variations through the RF feedback controls. All gain MCA9129-90-A Installation & Service Manual
Copyright Powerwave Technologies, Inc., July 2001. All rights reserved 044-05060 Rev. C4-3July 2001November 2002 and phase variations, for example those due to temperature, are reduced to the passive reference variations. The amplifier module is comprised of: Preamplifiers Main amplifier Error amplifier Two feed-forward loops with phase-shift and gain controls DC/DC power regulator Alarm monitoring, control and display panel The main amplifier employs class AB amplification for maximum efficiency. The error amplifier and feed forward loops are employed to correct signal nonlinearities introduced by the class AB main amplifier. The error amplifier operates in class AB mode. The RF input signals are ampli- fied by a preamp and coupled to an attenuator and phase shifter in the first feed-forward loop. The main signal is phase shifted by 180 degrees and amplified in the premain amplifier. The out- put from the premain amplifier is fed to the class AB main amplifier. The output from the main amplifier is typically 120 140 watts. The signal is output to several couplers and a delay linefilter. 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 sampled output from the main amplifier. The output from the error amplifier is then coupled back and added to the output from the m…

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MCA9129-90-A Installation & Service Manual
Copyright Powerwave Technologies, Inc., July 2001. All rights reserved 044-05060 Rev. C3-7July 2001November 2002 3-4 Initial Start-Up And Operating Procedures The only operating controls on each amplifier module are the rocker-style power switch and the RESET switch. WARNING Always turn the amplifier off when disconnecting and reconnecting RF interface ca- bles. Failure to do so may cause damage to the amplifier and/or personal injury. 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 prop- erly terminated at 50 ohms. Do not operate the amplifier without a load attached. Re- fer to tables 1-1and 1-2 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 co- axial cable. Use of any other cable, will distort the output. 2. Verify that the amplifier’s front panel power rocker switch is in the OFF position. 3. Turn on the power supply that provides +27 Vdc to the amplifier system. Do not apply an RF signal to the amplifier system. 4. Set the amplifier’s front panel power rocker switch to the ON position. 5. Visually check the indicators on each amplifier module, and verify that the following indicators are as follows: A. LPA D ISAB. Indicator (red) should turn off after 2.5 seconds. Status indicator should il- luminate green immidiately upon startup. B. The +27VDC, +15VDC, +5VDC and -5VDC indicators (green) on all amplifier modules should be on. The VSWR, Over Power, High Temp and Fan Fail LEDs should be off. 6. Follow the power setting procedure set forth in the amplifier subrack or system integration manual. Turn on external exciter/transceiver and apply RF input signals.

Page 1 of 46 Report No.: FC02-103 POWERWAVE TECHNOLOGIES TEST REPORT FOR THE AMPLIFIER, MCA9129-90-A FCC PART 22 & FCC PART 15 SUBPART B SECTION 15.109 CLASS B COMPLIANCE DATE OF ISSUE: DECEMBER 12, 2002 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.: 61271 W.O. No.: 79866 Date of test: November 20-21, 2002 Report No.: FC02-103 This report contains a total of 46 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 46 Report No.: FC02-103 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 Temperature and Humidity During Testing.....................................................................6 2.1033(c)(3) User’s Manual.............................................................................................6 2.1033(c)(4) Type of Emissions ......................................................................................6 2.1033(c)(5) Frequency Range ........................................................................................6 2.1033(c)(6) Operating Power .........................................................................................6 2.1033(c)(7) Maximum Power Rating .............................................................................6 2.1033(c)(8) DC Voltages................................................................................................6 2.1033(c)(9) Tune-Up Procedure.....................................................................................6 2.1033(c)(10) Schematics and Circuitry Description ......................................................6 2.1033(c)(11) Label and Placement .................................................................................6 2.1033(c)(12) Submittal Photos .......................................................................................6 2.1033(c)(13) Modulation Information............................................................................6 2.1033(c)(14)/2.1046/22.913 - RF Power Output............................................................7 2.1033(c)(14)/2.1047(b)/22.915- Audio Frequency Response ........................................8 2.1033(c)(14)/2.1047(b)/22.915 - Modulation Limiting Response .................................8 2.1033(c)(14)/2.1049(i)/22.917 - Occupied Bandwidth ..................................................9 2.1033(c)(14)/2.1051/22.917 - Spurious Emissions at Antenna Terminal ......................15 2.1033(c)(14)/2.1053/22.917 - Field Strength of Spurious Radiation .............................24 2.1033(c)(14)/2.1055 - Frequency Stability.....................................................................27 15.109 – Radiated Emissions ...........................................................................................28 Intermodulation Plots.......................................................................................................35 Output Plots .....................................................................................................................41 Page 3 of 46 Report No.: FC02-103 ADMINISTRATIVE INFORMATION DATE OF TEST: November 20-21, 2002 DATE OF RECEIPT: November 20, 2002 PURPOSE OF TEST: To demonstrate the compliance of the Amplifier, MCA9129-90-A with the requirements for FCC Part 22 & FCC Part 15 Subpart B Section 15.109 Class B devices. TEST METHOD: ANSI C63.4 (1992) & FCC Part 22 FREQUENCY RANGE TESTED: 15 MHz – 8.94 GHz MANUFACTURER: Powerwave Technologies 1801 E. St. Andrew Place Santa Ana, CA 92705 REPRESENTATIVE: Greg Butler TEST LOCATION: CKC Laboratories, Inc. 5473A Clouds Rest Mariposa, CA 95338 Page 4 of 46 Report No.: FC02-103 SUMMARY OF RESULTS As received, the Powerwave Technologies Amplifier, MCA9129-90-A was found to be fully compliant with the following standards and specifications: United States ! FCC Part 22 & FCC Part 15 Subpart B Section 15.109 Class B using: ! ANSI C63.4 (1992) method Canada RSS-131 using: ! FCC Part 22 & FCC Part 15 Subpart B Section 15.109 Class B using: ! ANSI C63.4 (1992) method See matrix below FCCCanada 1.1307 / 2.1093RSS 131 (3.6) / RSS 102 22.917 / 2.1049RSS 131 (5.1) N/ARSS 131 (5.1) 22.913 / 2.1046RSS 131 (5.2) Inter-modulation TestRSS 131 (5.3) 22.917RSS 131 (5.4) N/ARSS 131 (5.5) CONDITIONS FOR COMPLIANCE For compliance to FCC rules for AMPS modulation only, a band pass filter must be installed at the output of the amplifier. APPROVALS QUALITY ASSURANCE:TEST PERSONNEL: Steve Behm, Director of Engineering ServicesRandy Clark, EMC Engineer Joyce Walker, Quality Assurance Administrative Manager Chuck Kendall, Lab Manager Page 5 of 46 Report No.: FC02-103 EQUIPMENT UNDER TEST (EUT) DESCRIPTION The Amplifier, MCA9129-90-A tested by CKC Laboratories was a production unit. EQUIPMENT UNDER TEST Amplifier Manuf: Powerwave Technologies Model: MCA9129-90-A Serial: PD0000019E FCC ID: Pending PERIPHERAL DEVICES The EUT was tested with the fol…

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PHOTOGRAPH SHOWING RADIATED EMISSIONS PHOTOGRAPH SHOWING RADIATED EMISSIONS Radiated Emissions - Front View PHOTOGRAPH SHOWING RADIATED EMISSIONS Radiated Emissions - Back View