Powerwave Technologies 5JS0056 Multi Carrier RF Power Amplifier User Manual 273676

Powerwave Technologies Inc Multi Carrier RF Power Amplifier 273676

Manual 1

G3S-800-140-031 Installation & Service Manual  Copyright Powerwave Technologies, Inc., September 2001. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data. 044-05095 Rev. A 1-1 September 2001 Section 1 General Description 1-1 Introduction This manual contains information and procedures for installation, operation, and maintenance of Powerwave’s G3S-800-140-031 multicarrier RF power 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 G3S-800-140-031 (see figure 1-1) is a linear, feed-forward power amplifier that operates in the frequency band from 851 MHz to 869 MHz. The amplifier can simultaneously transmit multi-ple frequencies, with better than -60 dBc third order intermodulation distortion (IMD). It is de-signed for use in an amplifier system that is modular in design, and is ideally suited for use in base stations. The plug-in Model G3S-800-140-031 amplifier modules can each provide 140 watts of power and function completely 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 system'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. Inadver-tent operator damage from front panel manipulation is virtually impossible. The 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 four fans, two mounted on the front and two 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 table 1-2. 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.
G3S-800-140-031 Installation & Service Manual  Copyright Powerwave Technologies, Inc., September 2001. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data. 044-05095 Rev. A 1-2 September 2001 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 Number Description G3S-800-140-031 140 W 851-869 MHz MCPA Module 800-01075-003 Front fan assembly 800-00972-002 Rear fan assembly. Table 1-2 G3S-800-140 Multicarrier Cellular Amplifier Functional Specifications Frequency Range 851-869 MHz (18 MHz Bandwidth) Instantaneous Bandwidth 18 MHz Total Maximum Input Power -6.54 dBm Total Output Power 140 W (51.46 dBm) typical (1 Module) IMD and In-band Spurious, mean measurement, 30 kHz bandwidth@ +26 to +28Vdc, 25°C -60dBc or -16 dBm max @ up to 16 equal power CW tones with a combined maximum power of P0 with a max single carrier power of P0/16 with maximum crest factor of 7.5dB up to the maximum rated RF output power. Out of Band Spurious & Noise, measured in 30 KHz BW -60 dBc max @ +26 to +28 Vdc RF Gain 58 dB +0.5 dB Gain Flatness: ±0.5 dB @ 27 Vdc ±1 Vdc Gain Variation w/ Voltage and Frequency + 0.5 dB; 26 to 28 Vdc Gain Variation Over Temperature: ±0.5 dB Noise Figure 25 dB max Output Protection: Mismatch Protected Input Port Return Loss: 16 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, 70 amps max Operational +21 Vdc to 30 Vdc DC Circuit Breaker Rating 100 Amps Operating Temperature: 0º C to +50º C Storage Temperature: -40º C to +85º C Operating Humidity: 0 % to 80 % Relative Humidity (noncondensing) Storage Humidity: 0 % to 100 % 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. Heat Generation 5510 BTUS (1 Amplifier) Weight 50 lbs. Dimensions: 5.20” High, 17.00” Wide, 20.00” Deep Electrical Service Recommendations Circuit Breakers Capable of handling anticipated inrush current (nor-mally 25% over equipment maximum current draw), in a load center with a master switch.
G3S-800-140-031 Installation & Service Manual  Copyright Powerwave Technologies, Inc., September 2001. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data. 044-05095 Rev. A 1-3 September 2001 Figure 1-1 G3S-800-140-031

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