Powerwave Technologies 5JS0027 Single Channel Amplifier User Manual 8
Powerwave Technologies Inc Single Channel Amplifier 8
8
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| Document ID | 1305 |
| Application ID | pFfgPHYlBfr70ahdeGcQIg== |
| Document Description | 8 |
| Short Term Confidential | No |
| Permanent Confidential | No |
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| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 45.85kB (573113 bits) |
| Date Submitted | 1998-05-08 00:00:00 |
| Date Available | 1998-09-25 00:00:00 |
| Creation Date | 2001-07-17 13:56:56 |
| Producing Software | Acrobat Distiller 4.0 for Windows |
| Document Lastmod | 2001-07-17 13:56:58 |
| Document Title | 8 |
A A/
BUWERWAYE
YECHN3,DGIES
INSTALLATION & SERVICE
MANUAL
SP89301-100 AMPLIFIER SYSTEM
SPA9301-50 AMPLIFIER
SINGLE CHANNEL GSM
AMPLIFIER SYSTEM
1930-1990 MHz
50 WATTS AVERAGE POWER
31 March 1998
I’mwrwm c Technologict Inc. Tel: 714-757-0530
2026 .\Ic(;:m Avenue Fm: 714-757-0941
Irvine. CA 92614 Web Site: wnnvqumncnm
2—‘l
2—2
2-3
2—5
2-6
wont»
wmA
TABLE OF CONTENTS
Section 1
General Description
Introduction ......
General Description
Functional and Physical Spemfications v .. fl , . .
Equipment Changes H . .. . .............
Ordenng Information .. .....
Section 2
Installation
introduction ,,,,, 2—1
Electrical Service Recommendations ............. 2-1
Unpacking and Inspection .
Installation Instructions
Amplifier Module Power Connector H. ..v .. .. v
Mainframe Status Alarm and Control Connector JI .. ... t. ,2-4
Section 3
Operating Instructions
Introduction . 3-1
Location and Function of Amplifier Module Controls and Indicators” 3—1
Initial Start- Up and Operating Procedures. ,. 3—3
Section 4
Principles of Operation
Introduction .v v . .. t ..... 4-1
RF Input Signal t . .. t M. 4—1
RF Output Load .. ,. .. v . 4-1
System Functional Description 4-1
SPAQSOW- 50 Amplifier Module . 4-1
Main Amplifier . . . , v 44
Amplifier Monitoring H . 44
Amplifier Module Cooling v . _ 4-1
Power Distribution . t 4—2
Alarms . . 4-2
”Hum-t: RU \ ll
Par
5-1
5—2
5—3
5-4
5-5
576
5-6 1
5-6 2
rogue;
Lam—x
twain}:
TABLE OF CONTENTS (Continued)
Section 5
Maintenance
lntroduction
Perrodlc Maintenance
Cleamng Air Inlets/Outlets .
Test Equipment Required For Test. ..
Performance Test. vvvvv
Fleld Replaceable Parts and Modules
SPAQSOW— 50 Power Ampllfier Module
Cooling Fans .........
Appendix A
Performance Test
Introductron. . . ..... v ... ... ..... A-1
Specrficatron Vanables ,. . H ... .. fl tA-1
Referenced Documents . .. v , v . ..... A-‘t
Test Equrpment
Test" .......
VSWR ..
Test Configuration
Test Procedure
Gem and Current
Test Configuratrcn . or
Test Procedure .. .. . .. .....
Spurious Emrsslons ._ .. ... t ,A-6
Test Configuration v . . . . .. H .v . .. ., tA-B
Callbration , v .v .t v. . .. ..
Measurement , v v. . . A46
VSWR Alarm ,. v . . ., ... . , .. A-7
Test Configuration A-7
Test Procedure .. H . . . . .. .v t A-7
Galn Alarm v . , ... ... . A»?
Test Configuration .v . .A—7
Test Procedure v. . A-7
Temperature Alarm .. A-a
Test Conftguratron . v A-a
Test Procedure . A43
Overonve Alarm A-B
Test Conflguratron t v v . A—B
Test Procedure v . t H A—S
Calibratron — Equipment Setup . A-9
Loadstrings Calroratron v . . . A-9
Peak Power Meter — HPBQQTA . . v .. A—9
Operatron of Dlgrtal Slgnal Generator ESG DZOOOA v . . . .. A-9
Rn \ lii
Test Data Sheet ....
Figure
1-1
2-1
2-2
2—3
3-1
4-1
Table
dufuu
4; Wm:
TABLE OF CONTENTS (Continued)
Appendix 8
DS SPA9301-50
LIST OF ILLUSTRATIONS
5P59301-100 System W|th Two SPA930‘l-50 Modules. v
Male D-Sub Connector (on Rear of Amplifier Module)
SPSQ30’I»50 Ampllfler Module Front Panel .....
System Power Supply Connectlons ...... .. . . ,
Front and Rear Panels .....
SPAQBOW 50 Mam Amp Palette Block Dlagrarn v..
Arnpllfler System Test Setup Dragram v ...............
LIST OF TABLES
Major System Components
SPSQBO’l- 100 Single- -Channel Amplmer System Functlonal Specrficatlons ...
Amplmer Module D- Sub Connector Definrtlon .....
SPA9301 50 Interface Connectors Indlcators and Power Swrtch
Penodlc Malntenance
rm \ n
SECTION 1
GENERAL DESCRIPTION
1—1. INTRODUCTION.
This manual contains information and procedures for installation, operation, and maintenance of
the SPSQSOMOO‘ a GSM1900 Single channel amplifier system The manual is organized into five
sections as follows:
Section 1 General Description
Section 2 lnstallation
Section 3 Operating Instructions
Section 4 Principles of Operation
Section 5 Maintenance
1-2. GENERAL DESCRIPTION
The SP59301-l00 amplifier system is a single channel GSM power amplifier that operates from
1930 MHZ to 1990 MHz The amplifier system is modular in design. and is ideally suited for use in
GSM base stations The amplifier system is available in a minirack with two plug—In amplifier
modules 3 power supply, and low-loss cable extensions (figure 1-1) The plug»in amplifier
modules each provtde 50 watts of power and function completely independently of each other
The amplifier modules are designed for indiVidual sector operation, proViding sector continuous
operation Via fail—safe bypassing All solid-state the system is designed to prowde trouble—free
operation With minimum maintenance The systems modular construction plus its unique and
highly effecttve LED-based operational status and fault indicators help minimize downtime. The
all fail-safe design prowdes protection in the event of an RF overpower Il’lpUL an over-temperature
condition or loss of DC power In the P A mode each amplifier module provrdes a gain increase
of 6 dB per sector Inadvertent operator damage from front panel manipulation is Virtually
impossible
The front panel of each amplifier module has the system RF input and output connectors that
interface With the host system The front panel of each amplifier module also has unit level fault
indicators and a power onloff swnch Primary power for the amplifier system is +27 Vdc Cooling
for each plug-in amplifier module is proyio’ed by two fans mounted on the top and bottom of the
minirack (figure lAl) The fans draw outside air through the bottom of each module and exhaust
hot air through the top of the minirack
1-3. FUNCTlONAL AND PHYSICAL SPECIFICATIONS
Functtonal and phystcal specifications for the amplifier system are listed in table 14
1A. EQUIPMENT CHANGES
PowenNave Technologies. Inc reserves the right to make minor changes to the equipment without
notice including but not necessarily limited to component substitution and circuitry changes
Such changes may or may not be incorporated in this manual although it is our intention to keep
each manual as up—to—date as possmle To that end we ask that you, our customer share With
us information acquired in field Situations wnich might be of assistance to another user If you
share lI With us we‘ll pass it around
int-slit: 1m \ l—l
1-5. ORDERING INFORMATION
Tame 1—1 followmg gives the component numbers and descnpnons to be used when ordenng
ewther an entwre system or mdivwdua‘ components that Comprlse the system.
Table 14 Manor System Components
COMPON ENT
NUMBER DESCRIPTION
SP59301-1OO Mwmrack
[holds two amphfiers‘ one 24 V power supply)
SPA9301-50 {SO-Watt Amp‘ifier
‘ 1m \ 1-2
.w®_:vo_>_ oméomm/xaw 95h 53> Emym>w ooT—ommwam ,_‘._‘ 939m
3; 55:
$2; “5: wsmfl
1-3
”44 NH: Ru \
Table 1-2. SPSanl-loo Single Channel Amplifier System Functional Specifications
Parameter (System)
Specification
Frequency 1930—1990 MHZ
Temperature Range
Ambient Temperature -10 °C - +60 °C
Mounting Base Temp -10 “C — +80 °C
DC Power Supply
23.5—275 V, 22 Amps Max
(11 Amps Max per Module)
VSWR
< 1.3:1 Input/Output Connector
Dimensions
See figure 1
Parameter (Module)
Specification
Output Power Range
Operauonal Power Range 0—+ 48 dBm
Input Power Range
Pm @ CW —7—+42 dBm
Gain@Tamb=25 “C 6.0 +O,5/-02dB
P0 = +47 dBm @ P0 = +47dBrT‘l, Vcc = 27 5V
(Nole ll
Efficiency 17 % mln
@ P0 = +47 dBm, vCC = 27.5v
Junction Temperature +145 °C max @ P0 = + 49 dBm
Harmonics
2nd Harmonic < -40 dBc
3rd or Higher Harmonic < — 50 dBc
Spurious Emissions
Within DCS Tx Band < -38 dBm
Within DCS Rx Band < -29 dBm
Outside Rx & Tx bands < +9 dBm
Ncle i
nil-nan: Rm \
As measure: a\ far end cl oulam cab'es nest system menace
1-4
SECTION 2
INSTALLATION
2-1, INTRODUCTION
This section contains installation recommendations as well as unpacking, inspection, and
installation instructions for the SPSBBOMOO Amplifier System Carefully read all material in this
section prior to equipment unpacking or installation Also read and reView the operating
procedures in Section 3 priorto installing the equipment
2-2. ELECTRICAL SERVICE RECOMMENDATIONS
All electrical service should be installed in accordance With any applicable government or local
regulations (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 sen/ice entrance Straight. short ground runs are
recommended The electrical sewice must be well grounded.
Each amplifier system is supplied With its own AC and DC circuit breakers, so that a failure in one
does not shut off the whole sector Circuit breakers are thermal type. capable of handling an
inrush current of 125 amps. in a load center With a master sWitch
2»3. UNPACKING AND INSPECTION
This equipment has been operated. tested and calibrated at the factory Only to the event of
severe shocks or other mistreatment should any substantial readiustment be requtred. Check the
outsrde of each shipping container for instructions regarding unpacking. Carefully open the
containers and remove the rack and amplifier modules Retain all packing material that can be
reassembled in the event the 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.
Visually inspect the amplifier rack and modules for damage that may have occurred during
shipment Check for evidence of water damage bent or Warped chassis. loose screws or nuts, or
extraneous packing material in connectors or fans Inspect all connectors for bent connector pins
if the equipment is damaged a claim should be filed With the carrier once the extent of any
damage is assessed We cannot stress too strongly the importance of lMMEDlATE careful
inspection of the equipment and the subsequent IMMEDIATE filing of the necessary claims
against the carrier if necessary if possible. inspect the equipment in the presence of the delivery
person If the equipment is damaged. the carrier is your first area of recourse it the equipment is
damaged and must be returned to the factory, write or phone for a return authorization.
Powen/vave may not accept returns Without a return authorization Claims for loss or damage may
not be Withheld from any payment to Powerwave nor may any payment due be Withheld pending
the outcome thereof WE CANNOT GUARANTEE THE FREIGHT CARRIERS PERFORMANCE
2-4, INSTALLATION INSTRUCTIONS iSee figure 3—1i
The SPS9301—lOO contains two amplifier modules a power supply. and two RF cables The
system is deSigned for installation in a base station that permits access to the front of the amplifier
system minirack for connection of RF signals and has access to a 120 volt U S conventional AC
outlet itwo blade plus ground pirii capable of supplying 20 amps
iii$~lt§tllz ittx \ 2‘I
To install the amplifier system proceed as follows
AmmmebuNA
11
17
lnstall the plug-in amplifier modules (if not already in place) in the slots of the subrack
Verify that the POWER SWitch on the front of each module is in the down (OFF) position
At bottom of power supply verify that Jumper connectors are in place and secure
Assemble power supply in accordance With figure 14
See figure 23. attach each fan connector from power supply to each fan on the mlnlrack,
DO NOT connect 25-pln D-sub connectors to each amplifier at this tlme
Refer to figure 2-2 for the location of all input/output connectors
Connect each lnput cable to corresponding RF IN connector on front of amplifier module
Connect each output cable to corresponding RF OUT connector on front of amplifier module
Check your work before applyrng DC voltage to the amplifier Make cenain all connections
are tight and correct.
Plug power supply line cord into a l20 volt U S conventional AC outlet (two blade plus
ground pin} capable of supplying 20 amps,
Turn on power supply;
At bottom of power supply, measure primary DC input voltage at DC connectors DC input
voltage should be between +26.5 and 27 5 Vdc If the DC input voltage is above or below
the |Iml|$. call and consult Powerwave before you apply power to your amplifier
Turn off power supply
See figure 2-3 connect each +27 Vdc power cable from power supply to each amplifier
module
Secure minirack to floor With tour screws
Refer to section 3 for initial turn-on and checkout procedures
2-5. AMPLIFIER MODULE POWER CONNECTOR
Each amplifier in the subrack has a separate connector Power connections on the amplifier
connector are made through a 25-pin D-Sub male connector (figure 24) and are listed and
described in table 2-1
l 2 3 4 S 6 7 B 9 I) l E 3
O O O O O O O O O O O O O O O
O O O O O O O O O O O O
Figure 2-1 Male D-Sub Connector (on Rear of Amplifier Module)
1 Rm \ 2-2
Tab1e 2-1 Amplifier Module D-Sub Connector Definmon
PIN
NUMBER ‘ FUNCTION ‘ DESCRIPTION
1710 ‘ NC (No Connectlon) 1
11—13 1 Input Power 1 +2? Vdc
14-22 NC (No Connecnon) 1 7
23425 Input Power 1 27 Vdc Return
”Hamil Rm \ 2‘3
© GAIN/ BYPASS
© TEMP/VSVR
©
EFF
figure 2-2 595930150 Amplma Module From Panel
24
mcozomccoo 395m szoa Emwmxm .m\m wémi
5&8 8 a?
g sci: 538 E
5&8 8 RE
; 5:53 538 9
2-5
SECTION 3
OPERATING INSTRUCTIONS
3-1. INTRODUCTION.
Thrs sectton contains operattng lnstructlons for the SP59301—1OO Ampllfier System
3-2. LOCATION AND FUNCTION OF AMPLIFIER MODULE CONTROLS AND INDICATORS.
The ampllfler system conststs of a stand-alone rack-style mmlrack containing a single subrack
that houses two SPASSOl-SO amplmer modules A separate power supply lS supplled Wthh
mounts along one slde of the mmlrack to provtde power to each of the two mmlrack fans and to
each amplifier The Iocatron and functlon of the amplifier unterface connectors lndlcators, and
power swrtch are shown tn figure 3-1 and are descr|bed ln table 3-1
Table 34 SPA9301—50 Interface Connectors Indlcators, and Power Swrtch
RF OUT RF Output. Type N Coanal Connector
RF IN RF Input Type N 033me Connector
POWER ON / OFF Swttch Clrcutt Breaker Control of DC Power to Ampllfler
GAIN / BYPASS Indicator Red LED When My lndicates that ampltfler lS m
bypass mode
TEMP / VSWR lndlcator Yellow LED When llt, |nd|cates that
overtemperature condltron exlsts
DC / ON lndlcator Green LED When lit, lndicates that +27 Vdc |s
applied to the ampllfier module,
J2 25-F’m D-Sub Connector (+27 Vdc and Return)
mu, m}: lm .\ 371
chog
¥O®m ECO
Lowm
ezoLL
.fi‘\w, cgjmx;
Hc0,@
3—2
”umqflz 1m \
3»3. INITIAL START-UP AND OPERATING PROCEDURES
The only operat|ng control on each amplmer module lS the ON/OFF swttch To perform the inltlal
start-up proceed as follows
1 Double check to ensure that all mput and output cables are properly connected.
WARNING
Before applylng power‘ make sure that the input and output of
each amplifier are properly terminated at 50 ohms. Do not
operate the ampllfler wtthout a load attached Refer to table 1—2
for |nput power requ|rements Excesswe lnput power may
damage the amphfler
NOTE
The output coaxial cable between the amplifier and the antenna
must be SO-ohm coaxlal cable Use of any other cable wtll distort
the output
2. Venfy that front panel SWlIChES on both ampllfiers are in the OFF posmon,
3 Turn on supply that prowdes +27 Vdc to the ampllfler system Do not apply an RF
slgnal to the amplifier system at thlS ttme
4 Visually check each amptmer module as lI is turned on‘ and venfy that the DC ON
indlcator (green) comes on The TEMP NSWR and GAIN / BYPASS lndlcators
should be off
5 Apply RF lnput slgnals to ether or both amplmers
5 Allow the amplifiers to warm up for a mlnirnum of five (5) mmutes
humus: Rot \ 3'3
SECTION 4
PRINCIPLES OF OPERATION
4-1. INTRODUCTION
This section contains a functional description of the SP39301-100 linear amplifier system
4-2. RF INPUT SIGNAL
The maximum input power for all carrier frequenCies should not exceed the limits specified in table
142 The input VSWR should be 1 3 1 maximum (or better)
4-3, RF OUTPUT LOAD
The load impedance should be as good as possible (1 3 1 or better) in the Working band for good
power transfer to the load If the amplifier is operated into a filteri it Will maintain its distortion
characteristics outside the Signal band even if the VSWR is infinite.
4-4. SYSTEM FUNCTIONAL DESCRIPTION
The amplifier system is comprised of a minirack and two fan assemblies, two SPA93Ul-50 plug-in
power amplifier modules input and output coaxial cables, and an ac-dc converter The SPA9301-
50 is a TDMA amplifier that operates in a GOMHZ bandWidth from 1930 MHz to 1990MHzt A
typical two—module system is shown in Figure 1-1 Power output speCifications are listed in table
l—2 Each amplifier is a self—contained pug-in module and is functionally independent of the other
amplifier module The rear panel of each amplifier as well as each fan in the mlnirack assembly
has a connector that interfaces With the minirack power converter which in turn. plugs into a
conventional (U S ) 120-volt ac outlet Each amplifier front panel has l/O connectors that interface
With the host RF signal source and system antenna
4-5t SPA9301~50 AMPLIFIER MODULE
The amplifier module figure 41 has an average power output of 50 watts It is comprised of“
An input splitter / digital sectioni
An output amplifier section
A swrtch driver section.
A DC circuit breaker. and
A 12 volt voltage regulator
The main amplifier employs class AB amplification for maximum efficiency
4»5.1 MAIN AMPLIFIER
The amplifier employs a Single parallel class AB amplifier which provrdes at least 6 dB of gain in
any 30 MHZ frequency band from 1930 MHz to 1990 MHZ The amplifier operates on +27 Vdc
With a bias voltage of +5 Vdc and is mounted directly on a heat sink The alarm logic controls the
+5 Vclc bias voltage which shuts down the amplifier on an input overpower condition
4»5,2. AMPLIFIER MONITORING
in routine operation input output. and reflected power is continuously monitored When large
variations occur the modules generate alarm outputs The alarms are displayed on the front panel
indicator
4—5.3. AMPLIFIER MODULE COOLING
Although each amplifier module contains vts own heat sink. it is cooled Wilh forced air Two fans
are used for forced air cooling and redundancy The fans are located on the top and bottom of the
minirack assembly They draw air in through the bottom of the amplifier and exhaust hot air out
the top of the module The fans are field replaceable
4.1
5285 x85 235 95. Ems. 8.5855 eé 2:9”.
5:5 583:
«mownmww‘v ummuw
mwsa
mama
r,
930m 5,5.
4-2
Rm \
044mm:
4-6. POWER DISTRIBUTION
anary DC power for the system IS provrded by a onevkrlowan power supply attached to the
mrmrack The power supply provides each amplifier module and both fans Wlth +27 Vdc.
4-7. ALARMS
A number of plug-m ampllfier and system parameters and alarms can be monitored locally or
remotely (optlonal).
ubmr}: [m \ 4'3
SECTION 5
MAINTENANCE
5-1. INTRODUCTION
This section contains periodic maintenance and performance test procedures for the
SPS93Gt-100 Amplifier System It also contains a list of test equipment reqUired to perform the
identified tasks
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 may be null and void Do not return
equipment forwarranty or repair sen/ice until proper
shipping instructions are received from the factory
5-2. PERIODIC MAINTENANCE
Periodic maintenance requirements are listed in Table 5—1, Table 5-t also lists the intervals at
which the tasks should be performed
WARNING
Wear proper eye protection to avoid eye inyury
when using compressed air
Table 5-1 Periodic Maintenance
TASK INTERVAL ACTION
Cleaning i
Air Vents 30 Days inspect and clean per paragraph 5-4
Inspection i
Cables and 12 Months Inspect signal and power cables for
Connectors frayed insulation. Check RF connectors
to be sure that they are tight
Performance Tests i 12 Months Perform annual test per paragraph 5-5
5-3. CLEANING AIR INLETS/OUTLETS
The air inlets and outlets should be cleaned every 30 days If the equipment is operated in a
severe dust enVironment they should be cleaned more often as necessary Turn off DC power
source before removmg tans lt dust and dirt are allowed to accumulate the cooling effimency
may be diminished Using ezther compressed air or a brush With soft bristles loosen and remove
accumulated dust and dirt from the air inlet panels
tiiiniaiiz: Ru \ 5-1
5-4. TEST EQUIPMENT REQUIRED FOR TEST
Test equipment required to test the SPSQaOt-tDO amplifier system is listed in appendix A
Equivalent test equtprnent may be substituted for any item. keeping in mind that a thermistor-type
power meter is reqUired,
NOTE
All RF test equipment must be calibrated to 0 05 dB
resolution Any deviation from the nominal attenuation must
be accounted ior and factored into all output readings
5-5. PERFORMANCE TEST
Performance testing should be conducted in accordance with appendix A every 12 months to
ensure that the amplifier system meets the operational specifications listed on data sheet
DS SPA9301-50 (appendix 8). Also verify system performance after any amplifier module is
replaced in the field
56. FIELD REPLACEABLE PARTS AND MODULES
The followmg pans and modules can be replaced in the field. Dl’l-SitE‘ by a qualified technician with
experience maintaining RF power amplifiers and Similar equipment.
1 SPAQBOi—SD Power Amplifier Module
2 Cooling Fans
5-6.1. SPA9301-50 POWER AMPLIFlER MODULE
To replace a power amplifier module. proceed as follows.
NOTE
Power supply may remain on (active) With one module
fully operational while the followmg is performed
1 Turn off the power swnch on the front panel of the amplifier module.
2 Disconnect power cable from J2 at rear of amplifier module
3 Loosen two screws that secure amplifier module to subrack.
4 Use handle on front of module and With a steady even pressure pull module out of
chassis
5 Replace amplifier module in reverse sequence Make sure that power SWitch on front
of module is in the OFF position
5-6 2. COOLING FANS
To replace a cooling fan proceed as follows
1 Loosen four screws that secure fart to miniraok Disconnect fan power connector
from amplifier module
4 Install replacement fan in reverse order
it“,
5-2
APPENDIX A
PERFORMANCE TEST
1. INTRODUCTION
1.1
1.2
1.3
”41mm: RU \
Specification Variables
FL 2 1930 MHz
FC = 1960 MHZ
FH = 1990 MHZ
Referenced Documents
Data Sheet: DS SPA 930150 (see appendix 13)
Test Equipment
u. 11. us u
Isolamr. PCS
Preamp. 30W ouL OdBm in. 1900 MHz.
[solator PCS. 30W. Nlidisco MSCOIZO with llrgh power termination
Coupler. High Power. 3011131 HP778D. 50W
DCPS. 34»2()V1 15A. 11P0073A
Isolalor. 60 dB Dilum DSCOIZO “1111 high power terminulion
High Power Coupler. 10dB.N‘arda 3043131). 500W
High P0\\cr Attenuator. ZOdB. 250W
Cnupler, 11PS6205A
. (‘nuplcr 10dB
“Norah Filler wriublc. Trilnhic EVNI’ l(|()[)'3001)<5()~:\13
. Attenuator. 21) dB. X. SW
. Power Scnsor. HPS-lSlA
RF Power Motor. HP-137.
. Signal Gcncruwr. HPSMSA
.\'c1\mrk ,\nu1_\/ur. 111’X7531)
, Spectrum \nu|}/cr.11P 85611-1
Punk Prmcr \1clc1. 111’8‘1‘11 .\ “ilh S4S15,\ pmwr sensor
A4
2. TEST
2.1. VSWR
2.1.1. Test Configuration
us 5753 a
20 dB
“our
Hp A573
“Mgr?
Test Pruccdure
Determine Drive Required In get +4711Bm from PA
I i Configure the setup shmm JbOVC hy cnnnccling the input and output
lnadsmngx together (Tho I’v’\ .\[\‘dlli€ is rcmmcd).
Z] Ihc nulput lnudalrmg should he Ahead} calibrated so than we can no“
Accurxnci} rcud (h: pmwr coming mu uhhc Input Loudslring.
Sr Set up lhu \uuwrk hub/er pcr hchm
“but. SZL Lug Mug. SdB Du. Tiff—17.8 «(Bi Smnulhing inn
Slam WU” “Hi. Slop 2001) \IH/, Markers an FIN fC H'i
mer 5d imtiall) 10 —I SdBm. adj u>1 (or «40.0dBm into I’ \
("iiiihrcnc Imcrpni On. (hi kit \' 51) ohm. Cal: Rcspomc
mu.“ {m \ A-Z
tutu
Ret \
u-
6)
Po“ er range set to range il
Turn off RP
Set the Network Analyzer sweep type to CW at PC Ml-lz. RF output
power to -lSdBm.
increase the drive until the power meter reads 47-6.2:40 8 dBm. Note
and keep tlte drive letel from the Network Analyzer required to do
this.
Tum oft" RF and disconnect the Output Loadstring from the lnpttt
Loadstring.
Calibrate Network Analyzer
it
4)
Set the Network Analyzer back to Lin Freq Sweep.
Connect on N‘lm) short circuit to the output of the input directional
coupler.
Turn the thuork Analyzer RF power ON and perform an SZl
response calibration
Turn the Network Analyzer R17 OFF.
Measurement
6a
\I
St
o)
Connect the calibrttted input loadstring to the inpttt ol'the PA.
Connect the 50 ohm 150W attenuator to the output ofthe PA.
Turn on the PA Module and then tum the Netu ork Anal) zer RF ON.
Measure 511 with the response calibration performed tn previous
section.
Record the highest point in the hand as the input return loss ofthc PA
module.
Turn the Network \nul_\/.er RF OFF. Iurn ot't‘thc PA module,
Soup the Rl: conucetttub to the l’.\ Module so that the lnput
l ontlstrinu is connected to the output of the FA and the Output
Loudstttnt: S ttsctt tts Ll tet'ntinutton for the RI: input connector on the
l’.\.
turn the l’ \ on and the \et\\ork .\nul}/cr RF ()1\
Measure Sit u: til xtcp 4,
10) RCL‘UI'Li the illgilL‘xl pottu in the hind tts the Output Return Loss ot'the
l’.\.
A-B
2.2‘
Gain and Current
2.2.1 Test Configuration
HF' 5753 s
50GB
“l PA “Mel”: ‘1
h—l 20dE
. l
2. 2 TcstProcedurc
Calibration
ll Zero and Calibrate th‘ pmwr metcr
Z) lhe Output Loudstring should ttlrcad} be calibrated and the offset
entcrcd in the Puwcr NIL-ton along mth the upcraung frequenc) PC
1“
Rcmmc the P.\ (mm the RI: path and mnncct the Input and Output
londatrings hatch~to~batck
4h Raul] tlk‘ \' \ xctup nr gw tn refer tu setup hclmx to set up thc N'cumrk
\ntll\ /cr
PI'L‘\CL <2]. Lug \[ut__n ZdB Dh. Raft» MBA Start 1900 \]H7_t Stop
Zl)1l[),\lll/,
Haulers tn I’lvt [11 H l. imtmthing S‘HL ;\\g 16
l’mxer about 73,5. Um: pmwr mctcr to find 40.6 dBm mu.
l’mwr Rtmgc Manual. Range 1 [tn protect preamp from m'crdrivc]
A—4
Interpolation On. Cal Kit N 50 ohm. Calibrate menu: Response
Use 20dB pad to the R Port for 1-47 dBm calibration
3) Set the output power nl‘the network analyzer to -20dBm at PC MHz
CW,
6} Appl) DC putt er to the preamp and let the equipment waml up.
/) After the equipment has \\ armed upr set the NA RF Drive to read 47—
6.4 : 40.6dBm at the Power Meter.
8) Change the S\\Cep type on the network analyzer from CW to linear
sneep.
9) Perform a response calibration. and save the calibration in a register in
the anal) Zer.
G ain Measu rement
l ) The PA module is installed in its housing and connected to the test
setup Check that there is air flow around the unit. Use all the screws
and sure“ down the cover.
2) Recall the gain calibration for a l’.-\ output power level of 47dBtn.
3) With RF oft: Turn on the PA.
Nomma/ Vcc
1) Adjust the DC power supply so that the toltage at the connector to the
unit is Z7VDl‘ nominal.
Z) (in to C“ mode on the NA and set output power to r-L7 dBm at 17C.
then go back to l.m Sweep.
at Nleasttrc and record the PA Mndnlc Mn.
ON tlfse «INlarker lfttnctionr». Marker S
in and Min gain. Avg.
ch. Max. \rlin)
Low ch3
It .»\d_tust the D(' potter supply so that the wltttgc at the connector to the
ttnit lS 37Va5VDC
It (in tu C\\' mode nu the NA and reset Output power to -47 dBm at PC,
then go hack [0 Lin Sueep
Ft Current tneasttremcntx ma} ht: done at this time mth (W at I"(\. H. &
l-ll. .
41 Measure and record the l’.\ \lntlule \la\ gain and ,\lin gain, \\g (>\
My: Vcc
1 1 r\ci}]Ll5l 1th DC putter xuppi} 50 that the tultage at the connector to the
unit is Z7ell5\'l)f,
Rut \ A-6
«at
2.3.
2) Go to CW mode on the NA and reset output power to +47 dBm at FC.
then go back to Lin Sweep.
3) Measure and record the PA Module Max gain and Min gain. Avg ON.
Spurious Emissions
2.3.1. Test Configuration
Starting with the setup (or gain. disconnect the Network Analyzer and add
the Spectrum Analyzer and the Digital GSM generator,
Connect the loadstring that was going to Port 2 to the Spectrum Analyzer.
Connect the preamp (and attached arm) that was going to Port 1 to the
digital signal generator.
Connect the variable notch filter to the input of the Spectrum Analyzer
2.3.2. Calibration
l 1 Set the PA to read e47dBm out \\ ith the calibrated output loadstring
and pcxyer meter. using ("W mode at FL.
t 1
Monitor the CW signal at the Spectrum Analyzer and make sure the
xariable tiller is dtusted so that it presents minimal attenuation to the
signal (the signal is not being tiltcred at this time).
3) Adjust the amplitude offset of the Spectrum Analyzer until it reads the
same talue for poner (A47dBm) as the poner meter reads.
2.3.3. Measurement
1) Set the spectrum analyzer settings as indicated bclo“:
VBW : lOOkHz
RBW : lOOkllz
Spain 2 (70:\le7.
Scale 7 10 dB’ Div
Peak Hold
("enter Frequency : l-"C MHZ
it Configure the signal generator to provide a CW signal at frequency ot‘
l']. .\Illz and a ptmcr level of -lSdBnt.
w .\dtttst the \:trial)|e tiller to minimise the carrter poner on the
Spectrum .\naly/er
it Snitch the generator to (JNISK modulation ()f\
m \dtttst the output poucr lcycl ot'thc generator to prm ide a peak pmxer
le\ cl otvleBtn at the output otthe P.\ module.
{7} \leasttt'e the power in el ol any sptlltttllx tones that shon up in this
hand. and record them as spurious emissions tn tltc TX Band.
2.4.
7) Repeat steps 2 through 6 for carrier frequencies ofFC MHZ and FH
MHZ.
8) Change the center frequency ot'the spectrum analyzer to 1880 MHz.
9) Repeat steps 2 thru 7. and record the level of the measured spurious
tone as the spurious emissions in the RX band.
VSWR Alarm
2.4.1. Test Configuration
Use the same setup that is used to measure gain.
2.4.2. Test Procedure
With PA on at ‘47dBm at PC MHZ. disconnect output cable at the test
equipment end to simulate a VSWR fault.
Check that the }elluw VSWR LED comes on and verify that the RF
transfer rela) s are switching to 13} pass mode. The easiest way to see this is
in the dramatic reduction ut'Vec current In 1») pass made. even the bias
suppl} is shut off.
Reconnect the output cable and \erify that the only pener coming out is
the ch‘n e pouer.
To reset the it) pass mode. turn off RF and turn off Vee to the PA.
Gain Alarm
2.5.1. Test Configuration
1. se Spurious limissions setup u'ithuut Spectrum anultzer
1'se Digital Signal generator and Peak pouer sensor in place 01‘111’437
pO\\'Cl" SCHSOI’.
2.52. Test Procedure:
Calihratiun
l t 1'he output luudstring shnuld already be calibrated with the offset and
lrequeuc} entered into the power meter. which is zertted and
calibrated.
it Set the tl' vitttl generator to put out L111 uumetlultuetl signal at 17(‘ so that
the t43't uutput ptmer meter rcuds uhuut 471le
Jt Retnme the sensm'tbrthe111’437pmtermeter and replttee tt mth the
sensor l'ur the peak ptmer meter. Adiust the utl'set for this chunnel
until tt reads the slime us the 111’437 puuer meter did.
Measurement
1 t Remme the emer [ruin the PA module
2.6.
nu. Hwy?) Ru \
2) Set the Digital Generator to CW at FL MHz for +47dBm out. peak.
using 1 time slot.
3) To reduce the total gatn. short the input trace to ground on the third
transistor (farthest from the front plate) at the output ofthe input
power divider.
4) Note that the Red disable LED comes on and that Bypass transfer
takes place.
u.
Remove the short. To reset the Bypabs. turn off RF and then turn off
Vcc momentarily.
Temperature Alarm
2.6.1. Test Configuration
RF [0 the PA off. PA output loaded. Vcc on. Same configuration as gain
alarm.
2.6.2 Test Procedure
1) Turn on the PA “ith 47 dBm peak dt'itcn by the GMSK generamr
with l bit on.
2) .\ppl_\ 4 SV to pin 7. 3“ pm from left on the bottom
St Verify that the Yellow LED goes on and the Green LED goes Mt.
while the Vultagc is applied.
Overdive Alarm
2.7.1. Test Configuration
1 ) GMSK Generator
2) Calibrated Input Loadstring with Peak l’tm er Sensor
3 1 Output terminated uhh high power luad
2.7.2 Test Procedure
\\'ith Generator at Center Fret1.. DC at Vcc 27V. Increase Lll'l\C unttl uutt
wllllli ut'l‘ur until drive lC\ el reaches J4dBt11. Input peak drtve le\el should
he 41 5 tn 4: 5 dBm peak.
Veril} that 331m» operntmn comes on utth Overdriw Alarm.
\ ml} that the Red and ,\ellm\ l lsz are on and that the Green Llil) goes
nt‘t‘ utth (h et'dm e Alarm.
lo reset B}pili\' \lmlc. turn ttntt 011" 11nd lllL‘ll on ngull‘l.
A-S
9‘
CALIBRATION — EQUIPMENT SETUP
3.1. Loadstrings Calibration
Calibrate a network Analyzer for gain response in the rele\ ant t'req band.
L'se N cal kit and cables. Nth at Part 1. N(m) at Port 2
Insert Loadstring and note loss at Center Freq.
Program the power meter with the offset and frequency.
3.2. Peak Power Meter — HP8991A
Setup routine:
1)
2) (Enter I’H or FL as appropriate. This will change during
testing.)
3) Source Exif Data:
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