Powerwave Technologies G3S-800-180-29 Supplement

869-894 MHz

044-05112 Rev. A April 2002

Multi-Carrier Power Amplifier

869 – 894 MHz

G3S-800-180-29

Installation & Service Manual

180 Watts Average Power (210 W Max.)

-60 dBc Intermodulation Distortion

G3S-800-180-029 Installation & Service Manual

044-05112 Rev. A ii April 2002

April 2002

Powerwave Technologies, Inc. Tel: (714) 466-1000

1801 East St. Andrew Place (888) 797-9283

Santa Ana, CA 92705 Fax: (714) 466-5800

Web Site: www.powerwave.com

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.

G3S-800-180-029 Installation & Service Manual

044-05112 Rev. A iii April 2002

Table Of Contents

Par. Section 1 Page

No. General Description No.

1-1 Introduction..........................................................................................................................................................1-1

1-2 General Description..........................................................................................................................................1-1

1-3 Functional And Physical Specifications....................................................................................................... 1-1

1-4 Equipment Changes............................................................................................................................................1-1

1-5 Ordering Information.......................................................................................................................................... 1-2

Section 2

Installation

2-1 Introduction..........................................................................................................................................................2-1

2-2 Electrical Service Recommendations............................................................................................................ 2-1

2-3 Air Conditioning..................................................................................................................................................2-2

2-4 Unpacking and Inspection................................................................................................................................ 2-2

2-5 Installation Instructions....................................................................................................................................2-3

2-6 Amplifier Module Connectors.......................................................................................................................... 2-4

2-6.1 Amplifier Module Status, Alarm, Control, and Power Connector............................................................ 2-4

2-6.2 Amplifier Module RF Connector......................................................................................................................2-5

Section 3

Operating Instructions

3-1 Introduction..........................................................................................................................................................3-1

3-2 Location and Function of Amplifier Module Controls and Indicators..................................................... 3-1

3-2.1 Voltage Indicators and On/Off /Reset Switch...............................................................................................3-1

3-2.1.1 On Off Switch.......................................................................................................................................................3-1

3-2.1.2 RF On Switch....................................................................................................................................................... 3-1

3-2.1.3 +27VDC Indicator................................................................................................................................................3-2

3-2.1.4 +15VDC Indicator................................................................................................................................................3-2

3-2.1.5 +5VDC Indicator..................................................................................................................................................3-2

3-2.1.6 -5VDC Indicator................................................................................................................................................... 3-2

3-2.2 Alarm Indicators.................................................................................................................................................3-2

3-3 Initial Start-Up and Operating Procedures...................................................................................................3-4

Section 4

Principles of Operation

4-1 Introduction..........................................................................................................................................................4-1

4-2 RF Input Signal ....................................................................................................................................................4-1

4-3 RF Output Load..................................................................................................................................................... 4-1

4-4 G3S-800-180-029 Amplifier Module................................................................................................................4-1

4-4.1 Main Amplifier....................................................................................................................................................4-2

4-4.2 Error Amplifier.....................................................................................................................................................4-2

4-4.3 Amplifier Monitoring.........................................................................................................................................4-2

4-4.4 Amplifier Module Cooling ................................................................................................................................4-3

4-5 Power Distribution............................................................................................................................................. 4-3

4-6 Intermodulation................................................................................................................................................... 4-3

4-7 Alarms...................................................................................................................................................................4-3

G3S-800-180-029 Installation & Service Manual

044-05112 Rev. A iv April 2002

Section 5

Maintenance

5-1 Introduction..........................................................................................................................................................5-1

5-2 Periodic Maintenance....................................................................................................................................... 5-1

5-3 Test Equipment Required For Test..................................................................................................................5-1

5-4 Clean Air Inlets/Outlets.....................................................................................................................................5-2

5-5 Performance Test ............................................................................................................................................... 5-2

5-5.1 Amplifier System Performance Test...............................................................................................................5-2

5-5.1.1 Amplifier IMD Test..............................................................................................................................................5.3

5-5.1.2 Gain Test...............................................................................................................................................................5-3

5-5.1.3 Harmonic Test.....................................................................................................................................................5-3

5-5.1.4 Spurious Emissions Test...................................................................................................................................5-4

5-5.1.5 Input Return Loss................................................................................................................................................ 5-4

5-6 Field Replacement Parts and Modules.......................................................................................................... 5-5

5-6.1 G3S-800-180-029 Power Amplifier Module...................................................................................................5-5

5-6.2 Cooling Fans ........................................................................................................................................................ 5-6

Section 6

Troubleshooting

6-1 Introduction.......................................................................................................................................................... 6-1

6-2 Troubleshooting.................................................................................................................................................. 6-1

6-2.1 DC Voltage Indicators Not Illuminated..........................................................................................................6-1

6-2.2 OVER PWR Illuminated or Blinking................................................................................................................6-1

6-2.3 HIGH TEMP Illuminated ....................................................................................................................................6-2

6-2.4 VSWR Illuminated..............................................................................................................................................6-2

6-2.5 DC FAIL Illuminated............................................................................................................................................ 6-3

6-2.6 FAN FAIL Illuminated.........................................................................................................................................6-3

6-2.7 LOOP FAIL Illuminated....................................................................................................................................... 6-3

6-2.8 LOW PWR Illuminated.......................................................................................................................................6-3

6-2.9 LPA DISABLE Illumunated................................................................................................................................ 6-3

6-3 Return for Service Procedures ........................................................................................................................6-4

6-3.1 Obtaining an RMA ..............................................................................................................................................6-4

6-3.2 Repackaging for Shipment............................................................................................................................... 6-4

List of Illustrations

Figure

No.

1-1 G3S-800-180-029 Front and Side View...........................................................................................................1-3

2-1 G3S-800-180-029 Rear View.............................................................................................................................2-4

2-2 DC and Logic Connector.................................................................................................................................... 2-4

2-3 Amplifier RF Connector.....................................................................................................................................2-5

3-1 G3S-800-180-029 Amplifier Module RF Control Indicators........................................................................3-1

4-1 G3S-800-180-029 Power Amplifier Module Functional Block Diagram ................................................. 4-2

5-1 Amplifier System Test Setup Diagram........................................................................................................... 5-3

5-2 Amplifier Spring Clip Location........................................................................................................................5-5

G3S-800-180-029 Installation & Service Manual

044-05112 Rev. A vApril 2002

List Of Tables

Table

No.

1-1 Major Amplifier Components...........................................................................................................................1-2

1-2 G3S-800-180-029 MCPA Functional Specifications....................................................................................1-2

2-1 Sample of DC Cable Ratings.............................................................................................................................2-1

2-2 Averaged DC Current Load............................................................................................................................... 2-2

2-3 Averaged Heat Loading..................................................................................................................................... 2-3

2-4 Amplifier Module DC and Logic Connector Definition............................................................................... 2-5

2-5 Amplifier RF Connector Definition.................................................................................................................. 2-4

3-2 Amplifier Module Alarm Indicators Definition............................................................................................3-3

5-1 Periodic Maintenance....................................................................................................................................... 5-1

5-2 Test Equipment Required..................................................................................................................................5-2

5-3 MCPA Test Data Sheet...................................................................................................................................... 5-5

G3S-800-180-029 Installation & Service Manual

All specifications are subject to change without notice. Contact the factory for complete performance data.

044-05112 Rev. A 1-1 April 2002

Section 1 General Description

1-1 Introduction

This manual contains information and procedures for installation, operation, and maintenance of

Powerwave’s G3S-800-180-029 multicarrier cellular 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-800-180-029 (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 simultaneously transmit

multiple 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

AMPS/TDMA/CDMA/CDPD/W-CDMA base stations. The plug-in Model G3S-800-180-029 ampli-

fier modules can each provide 180 watts of power nominally (210 W max.) and function com-

pletely independently of each other. The amplifier modules are designed for parallel operation to

produce high peak power output and system redundancy for remote applications, when installed

in multi-module amplifier subracks manufactured by Powerwave. All solid-state, the system is de-

signed to provide trouble-free operation with minimum maintenance. The system's modular con-

struction 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.

The amplifier module has a status connector that allows the host system to monitor the amplifier

module’s status. The front panel of each amplifier module has unit level status/fault indicators 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-800-180-029 Installation & Service Manual

All specifications are subject to change without notice. Contact the factory for complete performance data.

044-05112 Rev. A 1-2 April 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 Number Description

G3S-800-180-029 180 W 869-894 MHz MCPA Module

800-01075-003 Front fan assembly

800-00972-002 Rear fan assembly.

Table 1-2 G3S-800-180-029 Multicarrier Cellular Amplifier Functional Specifications

Frequency Range 869-894 MHz (25 MHz Bandwidth)

Instantaneous Bandwidth 25 MHz

Total Typical / Maximum Input Power -5.44 / -5.0 dBm

Total Output Power 180 W (52.55 dBm) Nominal, 210 W (53.22 dBm) Max.

(1 Module)

IMD and In-band Spurious, mean

measurement, 30 KHz bandwidth@

+26 to +28Vdc, 25°C

-60 dBc or -16 dBm max @ up to 16 equal power CW

tones with a combined maximum power of P0with a

max single carrier power of P0/16.

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 28 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, 62 amps typical (70 amps max)

Operational +21.7 Vdc to 30 Vdc (Po derated outside

normal operating range)

DC Circuit Breaker Rating 100 Amps

Operating Temperature: 0 ºC to +40 ºC

Storage Temperature: -40 ºC to +85 ºC

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 4852 BTUs @ 26 VDC, Po = 180 W (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-800-180-029 Installation & Service Manual

All specifications are subject to change without notice. Contact the factory for complete performance data.

044-05112 Rev. A 1-3 April 2002

Figure 1-1 G3S-800-180-029

G3S-800-180-029 Installation & Service Manual

044-05112 Rev. A 2-1 April 2002

Section 2 Installation

2-1 Introduction

This section contains installation recommendations, unpacking, inspection, and installation in-

structions for the Multicarrier Cellular Amplifier. Carefully read all material in this section prior to

equipment unpacking or installation. Also read and review the operating procedures in Section 3

prior to installing the equipment. It is important that the licensee perform these tasks correctly and

in good faith. If applicable, carefully review the Federal Communications Commission (FCC) rules

as they apply to your installation. DON'T TAKE CHANCES WITH YOUR LICENSE.

2-2 Electrical Service Recommendations

Powerwave Technologies 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

installed 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 elec-

trical 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 capable of handling the anticipated inrush current, in

a load center with a master switch. Powerwave recommends that a 100 amp circuit breaker be

installed in the power distribution unit for each amplifier. DC wire smaller than 2 AWG 90°C cop-

per DC should not be installed. Each amplifier should have its own DC cable pair. See table 2-1.

CAUTION

This table and the foregoing are provided as guidelines. Follow the appropriate NEC

standards in your area and the cable manufacturer’s recommendation for proper cable

selection.

Table 2-1 Sample of DC Cable Ratings

AWG Copper Aluminum

or 3 Cond. In Raceway Single Conductor In Free Air 3 Cond. In Raceway Single Conductor In Free Air

MCM 90°C 110°C90°C 110°C 125°C 200°C90°C 110°C90°C 110°C 125°C 200°C

14 25 30 30 40 40 45 -- -- -- -- -- --

12 30 35 40 50 50 55 25 25 30 40 40 45

10 40 45 55 65 70 75 30 35 45 50 55 60

8 55 60 75 85 90 100 40 45 55 65 70 80

6 70 80 100 120 125 135 55 60 80 95 100 105

4 95 105 135 160 170 180 75 80 105 125 135 140

2 125 135 185 210 225 240 100 105 140 165 175 185

1 145 160 215 245 265 280 110 125 165 190 205 220

0 165 190 250 285 305 325 130 150 190 220 240 255

Based on ambient temperature of 30°C (86°F) 100% Load Factor

Source: Industrial Electric Wire & Cable Inc., Technical Guide Vol. 4M 11/99, Table III Suggested Ampacities - All Types

of Insulations; Based on National Electric Code

G3S-800-180-029 Installation & Service Manual

044-05112 Rev. A 2-2 April 2002

According to the laws of probability used to formulate Erlang tables, rarely are all channels trans-

mitting at the same time. We can use Erlang tables to predict typical maximum current usage.

Table 2-2 describes the current load for a 3 sector (70%), 2 sector (80%) and omni (90%) site.

Based on this table, an 800 amp power plant may suffice.

Battery backup or UPS systems should be installed in remote sites or in sites which experience

brownout conditions or generator switchovers. Adding this equipment should eliminate the need

for site visits by technicians after brownouts or power outages. Battery backup systems also pro-

vide excellent DC filtering as a side benefit.

Table 2-2 Averaged DC Current Load (Amperes)

(typical, based on % of output power)

Amplifier

Power No. Of

Amplifiers 3 Sector (70%)

Averaged Current 2 Sector (80%)

Averaged Current 1 Sector (90%)

Averaged Current 100%

Typical

180 9 484 554

180 6 323 334 370

180 3 161 167 176 185

180 1 54 56 59 62

2-3 Air Conditioning

Each G3S-800-180-029 amplifier generates 4852 BTUs of heat at full power. A fully populated

MCR30829-1-3 subrack operating at full power will generate 14,556 BTUs of heat. A full three-

sector site employing three fully populated MCR30829-1-3 subracks will generate 52,510 BTUs of

heat at full power (500W per subrack, 70A, 27VDC). A five-ton air conditioner is needed to cool

this Powerwave equipment. A full three-sector site probably needs at least a five-ton air condi-

tioner to cool all of the site's equipment, based on heat load averaging as described in table 2-2.

In keeping with section 2-3, table 2-3 describes the heat load for a 3 sector (70%), 2 sector (80%)

and omni (90%) site. Perform a site survey to determine actual air conditioning needs.

Table 2-3 Averaged Heat Loading (British Thermal Units/hr)

(typical, based on % of output power)

Amplifier

Power No. Of

Amplifiers 3 Sector (70%)

Averaged BTU's 2 Sector (80%)

Averaged BTU's 1 Sector (90%)

Averaged BTU's 100%

Typical

180 9 38,973 43,666

180 6 25,982 26,735 29,111

180 3 12,991 13,368 13,961 14,555

180 1 4,330 4,456 4,654 4852

2-4 Unpacking And Inspection

This equipment has been operated, tested and calibrated at the factory. Only in the event of se-

vere shocks or other mistreatment should any substantial readjustment be required. 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.

CAUTION

Exercise care in handling equipment during inspection to prevent damage caused by

rough or careless handling.

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