Operational Description

FCC ID: OQ3MAP800-70S

Operational Description

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FCC ID: OQ3MAP800-70S Appendix A A1

Operations Guide MULTI—CHANNEL CDMA POWER AMPLIFIER MAP800—70S 869—894 MHz 70—110 WATTS AVERAGE POWER Paradigm Wireless Systems, Inc. Tel: 949—260—1840 1672 McGaw Avenue Fax: 949—260—0883 Irvine, CA 92614 www.mepa.com

FCC ID: OQ3MAP800-70S A3

FCC ID: OQ3MAP800-70S A4

TABLE OF CONTENTS Section 1 Page Overview Introduction B j p aa on _a t N — General Description Functional and Physical Specifications Section 2 Installation 2.1 Introduction « co co co o 2.2 Electrical Service Recommendations 2.3 Unpacking and Inspection 24 Installation Instructions 2.5 Amplifier Module Power, Alarm, Control, and RF Connector Section 3 Operating Instructions 3.1 Introduction 10 Initial Start—Up and Operating Procedures 10 Section 4 Principles of Operation 4.1 Introduction 10 4.2 RF Input Signal 10 4.3 RF Output Load 10 4.4 Amplifier Functional Description 10 4.5 Amplifier Module Cooling 10 4.6 Power Distribution 10

TABLE OF CONTENTS (Continued) Section 5 Page Maintenance 5.1 Field Replacement of the Module 11 Section 6 Troubleshooting 6.1 Introduction 12 6.2 Troubleshooting 12 6.3 Return for Service Procedures 13 6.3.1 Obtaining an RMA 13 6.3.2 Repackaging for Shipment 13 LIST OF ILLUSTRATIONS Page MAP800—70S Amplifier Showing Front , Side, and Rear Views 5 MAP800—708S Amplifier Showing Subrack and Module 6 Power, Alarm, Control, and RF Connector 7 LIST OF TABLES Table Page MAP800—70S Multi—channel Power Amplifier Functional 7 Specifications Amplifler Module Power, Alarm, Control, and RF Connector 9 Definition Troubleshooting 12

SECTION 1 OVERVIEW 1.1 INTRODUCTION This manual contains information and procedures for installation, operation, and maintenance of Paradigm‘s MAP800—708 multi—carrier RF power amplifier for CDMA. 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 MAP800—708S (see figures 1—1 and 1—2) is a linear, multi—carrier power amplifier that operates in the cellular frequency band from 869 MHz to 894 MHz. It is designed as a self—contained module with EMI containment for use in cellular base stations. The MAP800—708S accepts single and multi—channel CDMA signals as input. The MAP800—708 does not use a pilot signal, and is line ir across the full band. Since it does not use feed—forward circuitry, the MAF 300— 708 should be a comparatively much more reliable amplifier. Each amplifier module has a power, alarm, and cor .rol connector that allows the host system to monitor the system status. Primary power for the amplifier is +27 Vdo. 1.3 FUNCTIONAL AND PHYSICAL SPECIFICATIONS Functional and physical specifications are listed in table 1—1.

Figure 1—1

Figure 1—2

Table 1—1. MAP800—70$ Multi—Channel Power Ampiifier Functional Specifications MAP800—708 Technical Specifications Multicarrier Amplifier Parameter Specification Frequency Range 869 MHz to 894 MHz RF Output Power at Combiner |60 Waits max / (LPA + combiner) output port 120 Watts max / (LPA + combiner) 70W module alone RF Output Power at LPA unit 170 Watts max / LPA unit (4 carriers) 90 Watts max/LPA unit (2 carriers) 110 Watts max/LPA (single carrier) Gain (LPA without combiner) Gain (LPA unit with combiner) 63 +/— 0.5 dB @ from 869 MHz to 894 MHz, 27V +/— 1V, at 25° C+/— 3° C with max RF power) EX) 2WAY COMBINER 65+/—0.5dB with 2 LPAs 62+/—0.5dB with 1 LPA Gain Flatness over any 2MHz [+/—0.2 dB Bandwidth Gain variation: 0° C~60° C |63+/— 1.0dB Out Power: 30~54.8dBm, DC: 21~28V IMD /Spurious: 31 dBe / 30KHz BW @ 750 KHz offset. with max HP ESG CDMA |47 dBc / 30KHz BW @ 1980 KHz offset. 4 carriers, amd Max RF power O° C ~60° C, DC: 24~ 28V Receiver Band Noise Level at —35 dBm maximum / 30 KHz BW 824~849 MHz @ 300 Watts max power IMd /Spurious at $96~900 MHz —23 dBm maximum / 30 KBz BW @ 300 Watts max power Input CDMA carrier condition |HP ESG 9ch forward source: 1 pilot, I paging, I sync, 6 traffics. Max 4 carriers with HP ESG source (model: E4433B). No. of input CDMA carrier MAX 4 CARRIERS at rated power Reverse Power Protection Reverse power does not deteriorate the LPA IMD performance Input / Output VSWR 1.5 : 1 maximum Load Stability VSWR & : 1, all phases with forward output power up to MAX watts. Normal DC Voliage 24V to 28V, @ 27V DC Operating DC Voltage 21V to 30V

SECTION 2 INSTALLATION 2.1 INTRODUCTION The Mode} MAP800—708 Multi—channel Power Amplifier is used in base stations offering wireless CDMA service. Please review this manual carefully before operating the ampiifier. 2.2 ELECTRICAL SERVICE RECOMMENDATIONS Paradigm Wireless recommends that proper AC line conditioning and surge suppression be provided on the primary AC input to the +27 VDC power source. All electrical service should be instailed in accordance with the National Electrical Code, any applicable state or local codes, and good engineering practice. Special consideration should be given to lightning protection of all systems in view of the vulnerability of most transmitter sites to lightning. Lightning arrestors are recommended in the service entrance. Straight, short ground runs are recommended. The electrical service must be well grounded. Each amplifier system should have its own circuit breaker, so a failure in one does not shut off the whole installation. Circuit breakers should be thermal type, capable of handling the anticipated intush current, in a load center with a master switch. 2.3 UNPACKING AND INSPECTION This equipment has been operated, tested and calibrated at the factory. Carefully open the container(s) and remove the amplifier module(s). Retain all packing material that can be reassembled in the event that the unit must be returned to the factory. Visually inspect the amplifier module for damage that may have occurred during shipment. If the equipment is damaged, a claim should befiled with the carrier once the extent of any damage is assessed. If possible, inspect the equipment in the presence of the delivery person. If the equipment is damaged due to shipping, the carrier is yourfirst avenue of recourse. If the equipment is damaged and must be returned to the factory, write or phone for a return authorization. Paradigm may not accept returns without a return merchandise authorization. We are unable to and will not guarantee the performance of the freight carrier. 2.4 INSTALLATION INSTRUCTIONS The MAP800—708 amplifier module is designed for installation in a subrack that permits access to the subrack for connection of DC power, RF, and monitor cables. Forced air cooling is provided by fans integrated into the subrack. To install the amplifier proceed as follows: 1. Install subrack in equipment rack or cabinet and secure in place. 2. Connect antenna cable(s) to appropriate sector output at back of subrack. 3. Connect the transceiver output(s) or combiner output to input(s) of subrack. 4. Connect alarm and control cables to subrack. WARNING Turn off external primary DC power before connecting DC power cables. 5. Connect positive primary power and negative primary power to the subrack. Tighten the

SECTION 3 OPERATING INSTRUCTIONS 3.1 INTRODUCTION This section contains operating instructions for the MAP800—705 Multi—carrier RF Power Amplifier. 3.2 INITIAL START—UP AND OPERATING PROCEDURES To perform the initial start—up, proceed as follows: 1. Check to ensure that all input and output cables are properly connected. CAUTION Before applying power, make sure that the input and output of the amplifier are properly terminated into 50 ohms. Do not operate the amplifier without a proper load ({antenna + coax, or dummy load) attached. Refer to table 1—1 for input power requirements. Excessive input power may damage the amplifier, and cause an over power condition. NOTE The output coaxial cable between the amplifier and the antenna must be 50 ohm coaxial cable. Use of cable of other impedance may void the warranty, and will distort the output signal. 2. Place power on/oft switch on the amplifier front panel in the "off" (down) position 3. Turn on supply that provides +27 Vde to the amplifier system. 4. Place power on/off switch on the amplifier front panel in the "on" (up) position. 5. Turn on external transceiver/signal source and apply RF input signals. 6. Perform normal tests to verify base station RF output SECTION 4 PRINCIPLES OF OPERATION 4.1 INTRODUCTION This section contains a functional description of the MAP800—70$ Multi—channel Power Ampilifier. 4.2. RF INPUT SIGNAL The maximum input power should not exceed the limits specified in table 1—1.

2. Loosen the two thumbscrews (top and bottom of the faceplate) that secure the amplifier module to the subrack. 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. SECTION 6 TROUBLESHOOTING 6.1 INTRODUCTION This section contains a brief list of problems which users have encountered and a few suggested actions that may correct the problem. If the suggested corrective action does not eliminate the problem, please contact your Paradigm field representative or the factory for furtherinstructions. NOTE Check your sales order and equipment warranty before attempting to service or repair 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. 6.2 TROUBLESHOOTING Refer to table 6—1 for troubleshooting suggestions. Table 6—1. Troubleshooting. SYMPTOM SUGGESTED ACTION MAP300—708 Inoperative 1. Check for proper power supply voltage. 2. Verify all RF connections. 3. Verify that unit does not have a major fault (red LED on front panel). Power cycle the amplifier. RF Appears in Wrong Sector 1. The subrack may have multiple inputs and outputs for different sectors. Check that the correct input and output are used in the rack

6.3 RETURN FOR SERVICE PROCEDURES When returning products to Paradigm, the following procedures will ensure optimum response. 6.3.1 Obtaining a RMA A Return Material Authorization (RMA) number must be obtained prior to returning equipment to the factory for service. Please contact our Customer Service Department at (949) 260—1840 to obtain this number. Failure to obtain this RMA number may result in delays in receiving repair service or the shipment being refused at Paradigm. 6.3.2 Packaging for Shipment To ensure safe shipment of the amplifier, it is recommended that the original shipping container designed for the amplifier be used. The original packaging material is reusable. If it is not available, contact Paradigm‘s Customer Service Department for packing materials and information.

FCC ID: OQ3MAP800-70S Notes: A15

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FCC ID: OQ3MAP800-70S Notes: A19


Document Created: 2001-06-11 14:19:14
Document Modified: 2001-06-11 14:19:14
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