Related Manuals for Powerwave Technologies G3L-1929
Summary of Contents for Powerwave Technologies G3L-1929
- Page 1 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...
- Page 2 © 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.
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Page 3: Section 1. General Description
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. - Page 4 -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 May 2003...
- Page 5 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 May 2003...
- Page 6 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 May 2003...
- Page 7 G3L-1929- Installation and Service Manual Figure 1-3 Model G3L-1929-120 Amplifier Top View Power ON/OFF Indicator Switch Figure 1-4 Model G3L-1929-120 Amplifier Front Panel Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A May 2003...
- Page 8 G3L-1929- Installation and Service Manual 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 May 2003...
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Page 9: Section 2. Installation
Circuit breakers should be capable of handling the anticipated inrush cur- rent, in a load center with a master switch. 2-4 Air Conditioning Each G3L-1929-120 amplifier generates approximately 2300 BTUs of heat at full power. A 1-ton air conditioner sufficiently handles 12,000 BTUs of heat. 2-5 Unpacking and Inspection This equipment (as applicable) has been operated, tested and calibrated at the factory. -
Page 10: Installation Instructions
WE CANNOT GUARANTEE THE FREIGHT CARRIER'S PERFORMANCE 2-6 Installation Instructions Proceed with the installation of the G3L-1929-120 Amplifier as follows: ARNING Turn off external primary DC power before connecting DC power cables. -
Page 11: Amplifier Module Power, Alarm, Control, And Rf Connector
+20.5 Vdc ± 0.5V or +29 Vdc ± 0.5V. When this alarm oc- RS-485 curs the MCPA shuts down Loop Fail Alarm When an alarm occurs on the feed forward path. RS-485 EN/DISABLE Reserved RS-485 Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev A May 2003... -
Page 12: Section 3. Operating Instructions
This section contains a description of the G3L-1929-120 Multi-Carrier Power Amplifier (MCPA) controls and indicators and initial start-up and operating procedures. 3-2 Controls and Indicators The controls and indicators for the G3L-1929-120 Power Amplifier consist of the primary power On/Off/Reset switch and status indicator LED as shown in figure 3-1. Power... -
Page 13: Initial Start-Up And Operating Procedures
Place the power On/Off/Reset switch on the amplifier front panel to the On (middle) position. Allow the amplifiers to warm up for at least 20 minutes before taking power readings. Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A... -
Page 14: Section 4. Principles Of Operation
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. - Page 15 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...
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Page 16: Amplifier Module Cooling
Primary DC power for the amplifier is provided by the host system. The amplifier module has a DC/DC converter and voltage regulator that converts the +27 Vdc to +15 Vdc, +5 Vdc, and -5 Vdc for internal use. Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A May 2003... -
Page 17: Section 5. Maintenance
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). Check your sales order and equipment warranty before attempting to service or re- pair the unit. -
Page 18: Performance Test
1-1. Record test data in table 5-3. 5-4.1.3 Input Return Loss: Read and record the S 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 May 2003... - Page 19 1930 – 1990 MHz Band Input Return Vcc = 27 Vdc Loss PO = See table 1-4 -14 dB 1930 – 1990 MHz Band PASS FAIL Tested by Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A May 2003...
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Page 20: Field Replacement Of The Module
With steady even pressure, use handle on front of amplifier to pull module out of subrack. Install replacement in reverse order of steps 1 through 3 above. Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A... -
Page 21: Section 6. Troubleshooting
To ensure safe shipment of the amplifier, it is recommended that the original package designed for shipping the amplifier be reused. If it is not available, contact Powerwave’s Customer Service Department for packing materials. Copyright Powerwave Technologies, Inc., May 2003. All rights reserved 044-05138 Rev. A May 2003...
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