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GatesAir.com
TECHNICAL MANUAL
TELEVISION BROADCAST TRANSMITTER
888-2743-001
Maxiva TMULXT Series
Revision E
March 8, 2015
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ManualRevisionHistory
ULXT8882743001
REV. DATE ECN Pages Affected / Description
A May2014 PreliminaryManual
B August2015 Generalupdateallsections.
C January2015 E64248 Generalupdateallsections.AddedGUIinfosection3.
D February2015 E64368 UpdatedSections2,5&7.
E March2015 E64394 Updatedcoolanttype.
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Publication Information
2014 GatesAir, Inc. Proprietary and Confidential.GatesAir considers this document and its contents to be proprietary and confidential. Except formaking a reasonable number of copies for your own internal use, you may not reproduce thispublication, or any part thereof, in any form, by any method, for any purpose, or in any language otherthan English without the written consent of GatesAir. All others uses are illegal.
This publication is designed to assist in the use of the product as it exists on the date of publication ofthis manual, and may not reflect the product at the current time or an unknown time in the future. Thispublication does not in any way warrant description accuracy or guarantee the use for the product towhich it refers.GatesAir reserves the right, without notice to make such changes in equipment, design, specifications,components, or documentation as progress may warrant to improve the performance of the product.GatesAir reserves the right, without notice to make such changes in equipment, design, specifications,components, or documentation as progress may warrant to improve the performance of the product.
Trademarks
Product names and other appropriate trademarks, e.g. Maxiva, Intraplex HD Link,
PowerSmart, Flexiva 3DX] are trademarks of GatesAir or its subsidiaries. Microsoftand Windows are registered trademarks of Microsoft Corporation. All other trademarks andtrade names are the property of their respective companies.
Global Contact Informationhttp://www.gatesair.com/company/contact-us.aspx
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TechnicalAssistance
TechnicalandtroubleshootingassistanceforGatesAirproductsisavailablefromthefieldservicedepartment
duringnormalbusinesshours8:00AMto5:00PMCST.
Telephone+12172228200,ULXT+12172217086,[email protected] .
Emergencyservice
is
available
24
hours
aday,
seven
days
aweek,
by
telephone
only.
Onlineassistance,includingtechnicalmanuals,softwaredownloads,andservicebulletins,isavailableatour
CustomerPortalhttp://support.gatesair.com .
ForGlobalTechnicalSupportInformationpleasevisit:
http://www.gatesair.com/services.aspx
Europe,MiddleEastandAfrica:
24/7TechnicalSupport+12172228200
Email [email protected]
Asia:
24/7TechnicalSupport+12172228200
Email [email protected]
Addresswrittencorrespondenceto GatesAir
FieldServiceDepartment
3200WismannLane
Quincy,IL62305,USA.
NOTE:Forallserviceandpartscorrespondence,pleaseprovidethesalesordernumber,aswellastheserial
numberforthetransmitterorpartinquestion.Recordthosenumbershere:
___________________________________/___________________________________
Pleaseprovide
these
numbers
for
any
written
request,
or
have
these
numbers
ready
in
the
event
you
choose
to
callregardinganyserviceorpartsrequests.Allwarrantyclaimsrequireaserialnumbertobeprovided.Forout
ofwarrantyproducts,thiswillhelpusidentifywhathardwareshipped.
ReplaceablePartsService
Theservicepartsdepartmentisavailablefrom8:00AMto5:00PMCSTMonday Friday,
and8:00AMto12:00PMCSTonSaturday.
UnpackingCarefullyunpacktheequipmentandperformavisualinspectiontodetermineifanydamagewasincurred
duringshipment.Retaintheshippingmaterialsuntilithasbeenverifiedthatallequipmenthasbeenreceived
undamaged.Locateandretainallpackingchecklists.Usethepackingchecklisttohelplocateandidentifyany
componentsorassemblieswhichwereremovedforshippingandmustbereinstalled.Alsoremoveanyshipping
supports,straps,andpackingmaterialspriortoinitialturnon.
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ReturnsAndExchanges
NoequipmentcanbereturnedunlesswrittenapprovalandareturnauthorizationisreceivedfromGatesAir.
Specialshippinginstructionsandcodingwillbeprovidedtoassureproperhandling.Completedetailsregarding
circumstancesandreasonsforreturnaretobeincludedintherequestforreturn.Customequipmentorspecial
orderequipmentisnotreturnable.Inthoseinstanceswherereturnorexchangeofequipmentisattherequest
ofthe
customer,
or
convenience
of
the
customer,
arestocking
fee
will
be
charged.
All
returns
will
be
sent
freight
prepaidandproperlyinsuredbythecustomer.WhencommunicatingwithGatesAir,specifytheGatesAirorder
numberorinvoicenumber.
SafetyThismanualisintendedasageneralguidefortrainedandqualifiedpersonnelwhoareawareofthedangers
inherentinhandlingpotentiallyhazardouselectrical/electroniccircuits.Itisnotintendedtobeacomplete
statementofallsafetyprecautionswhichshouldbeobservedbypersonnelinusingthisorotherelectronic
equipment.Theinstallation,operation,maintenanceandserviceofthisequipmentinvolvesriskstopersonnel
andequipment,andmustbeperformedonlybyqualifiedpersonnelexercisingduecare.GatesAirshallnotbe
responsibleforinjuryordamageresultingfromimproperproceduresorfromtheuseofimproperlytrainedor
inexperiencedpersonnelperformingsuchtasks.Duringinstallationandoperationofthisequipment,local
building/electricalcodes
and
fire
protection
standards
must
be
observed.
! WARNING:THE CURRENTS AND VOLTAGES IN THIS EQUIPMENT ARE DANGEROUS. PER-
SONNEL MUST AT ALL TIMES OBSERVE SAFETY WARNINGS, INSTRUCTIONS
AND REGULATIONS.
! WARNING:ALWAYSDISCONNECTPOWERBEFOREOPENINGCOVERS,DOORS,ENCLO
SURES,GATES,PANELS,ORSHIELDS.ALWAYSUSEGROUNDINGSTICKSAND
SHORTOUTHIGHVOLTAGEPOINTSBEFORESERVICING.NEVERMAKEINTER
NALADJUSTMENTS,
PERFORM
MAINTENANCE,
OR
SERVICE
WHEN
ALONE
OR
WHENFATIGUED.
! WARNING:DO NOT REMOVE, SHORT-CIRCUIT OR TAMPER WITH INTERLOCK SWITCHES
ON ACCESS COVERS, DOORS, ENCLOSURES, GATES, PANELS OR SHIELDS.
KEEP AWAY FROM LIVE CIRCUITS, KNOW YOUR EQUIPMENT AND DONT
TAKE CHANCES.
! WARNING:INCASEOFEMERGENCYENSURETHATPOWERHASBEENDISCONNECTED.IF
OILFILLED
OR
ELECTROLYTIC
CAPACITORS
ARE
UTILIZED
IN
YOUR
EQUIPMENT,
ANDIFALEAKORBULGEISAPPARENTONTHECAPACITORCASEWHENTHE
UNITISOPENEDFORSERVICEORMAINTENANCE,ALLOWTHEUNITTOCOOL
DOWNBEFOREATTEMPTINGTOREMOVETHEDEFECTIVECAPACITOR.DO
NOTATTEMPTTOSERVICEADEFECTIVECAPACITORWHILEITISHOTDUETO
THEPOSSIBILITYOFACASERUPTUREANDSUBSEQUENTINJURY.
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FirstAidforElectricalShock
Faultyswitches,frayedflexesanddefectiveappliancescanallbecausesofelectricalshock.Evenashockfroma
domesticcurrent thetypeusedinthehomeortheworkplace cancauseseriousinjuryorevenresultina
fatality.
Wateris
avery
efficient
conductor
of
electricity
and
presents
an
additional
risk.
Handling
otherwise
safe
electricalequipmentwithwethands,orwhenstandingonawetfloor,greatlyincreasestheriskofelectrical
shock.
TreatmentforElectricalShock
Beforedoinganythingelse,rememberthatthefirstpriorityispersonalsafety.Donottouchavictimiftheyare
stillincontactwiththeappliancethathascausedtheshock.Iftheyarestillincontactwiththeelectricalsource,
theywillbe'live'andyouriskelectrocutiontoyourself.
Turn
off
the
source
of
the
electricity,
if
possible,
to
break
contact
between
the
victim
and
the
electrical
supply.
Switchoffthesupplyatthemainsormeterpointifpossible,otherwiseremovetheplugorwrenchthecable
free.
Alternatively,youcanmovethesourceoftheshockawayfromyouandthevictim.Standonsomedry,
insulatingmaterialsuchasawoodenbox,plasticmatortelephonedirectory.Usingawoodenpoleorbroom,
pushthecasualty'slimbawayfromtheelectricalsourceorpushthesourceawayfromthem.
Ifitisnotpossibletobreakthecontactusingawoodenpoleorbroom,loopalengthofropearoundthe
casualty'sanklesorundertheirarms.Takegreatcarenottotouchthemwhileyouaredoingthis.Onceyouhave
loopedtheropearoundthem,usethistopullthemawayfromthesourceoftheelectricalcurrent.
Onceyouhavebrokenthecontactbetweenthevictimandthesourceoftheshock,conducttheprimarysurvey
response,airway,circulation,breathing andtreatanyurgentconditionfound.Callimmediatelyfor
emergencyservices.
Postasmuchinformationaspossibleatthetransmittersite.PosterssuchasFigure01onthenextpageshouldbe
prominentlydisplayednearthetransmitter.Emergencycontactphonenumbersanddirectionstothetransmitter
sitewithlandmarksintheareashouldbepostednearthetransmitterandtelephone.
References
Itisveryimportanttohaveasafetyplaninplaceandavailablepersonnelthataretrainedandcertifiedinfirstaid
andCPR.Pleaserefertothefollowingwebsitesformoreinformation:
AmericanRed
Cross
www.redcross.org
OccupationalSafetyandHealthAdministration(OSHA) www.osha.gov
ForcountriesotherthanUSA,contacthealthandsafetyagenciesinyourareaformoreinformation.
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Figure01 ElectricalShockFirstAidPoster(Example)
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Glossary
AIB AnalogInputBoard,Anoptionalcircuitcardforthemodulatorsectionofthelowpowerunit(LPU).It
providesthenecessaryinterfacetoallowthemodulatortoacceptanalogvideoandaudioinputsaccordingto
thePAL,NTSC,orSECAMstandards.Notavailableinallmodels.
ADC
Analog
to
Digital
Converter
ASI AsynchronousSerialInterface,AstreamingformatusedtocarrytheMPEGtransportstreamfromthe
networkoriginationpointtothetransmitterformodulationontotheRFcarrier(s).
ATSC AdvancedTelevisionSubcommittee,adigitaltelevisionstandardfeaturingasingle,vestigialsideband
carrierandan8VSBmodulationconstellation.ThetransportstreamformatmaybeeitherSMPTE310orASI.
Thedataratebeforeforwarderrorcorrectionis19.392658Mbit/s.Thetransmitteddataratewitherror
correctionis32.28Mbit/s.
BackPorch Theportionoftheanalogvideohorizontallinewaveformfollowingthesyncpulsebutbeforethe
startofactivevideo.Onlyusedinmodelsthatarecapableofanalogmodulation.
BandIII
The
VHF
radio
frequency
band
from
168
MHz
to
242
MHz.
BandIV TheUHFradiofrequencybandfrom470MHzto860MHz.
BPF BandPassFilter.Mayalsobecalledamaskfilterorcriticalmaskfiler.Ahighpowerfiltercenteredabout
thedesiredchannelbandwidthandlocatedatthetransmitteroutputporttoeliminateoutofband
intermodulationproductsarisingfromthepoweramplificationprocess.
BTSC BroadcastTelevisionSystemsCommittee
CAN ControllerAreaNetwork(CANorCANbus)isaserialcommunicationsstandarddesignedtoallowmicro
controllersanddevicestocommunicatewitheachother.
COFDM
CodedOrthogonal
Frequency
Division
Multiplex.
A
transmission
technique
in
which
the
information
contentofacompleteensemble(multiplex)isdividedandmodulatedontoamultitudeofcloselyneighboring
RFcarrierswithinachannelbandwidth(frequencyblock).Thedivisionoftheinformationpayloadamonga
largenumberofRFcarriersensuresthateachindividualRFcarrierhasaverylowdatarate(symbolrate).The
longsymbolperiodoftheindividualRFcarriersallowsthereceivertowaituntilalldelayedsignalreflections
havearrivedandbeenaddedtothedirectsignal(...duringaguardintervaltobediscarded).Thispermits
recoveryastablesignalindifficultreceptionconditions,especiallyduringmobilereception.
CPLD Complexprogrammablelogicdevice.
CRC CyclicRedundancyChecksumisaprocedureforerrordetectionindigitalsignals.Beforedistributiontothe
transmitter,aCRCiscomputedforthetransportstreamsignal.ThisCRCissentinthetransportstream.Upon
receptionatthetransmittersite,anotherCRCiscomputedfromthereceivedtransportstreamandcompared
tothetransmittedvalue.IftheCRCsareidentical,noerrorhasoccurredduringthedistributiontothe
transmittersite.
DABModeDigitalAudioBroadcastisaAdigitalradio/multimediastandardfortransmittingmultipleprograms
withina1.5MHzRFfrequencyblock.TheoriginalDABstandardhasbeenextendedbytwodifferent
enhancementstotheencodinglayer:DABPlusandDMB.AllthreestandardsusetheoriginalDABmodulation
formatinthetransmitter(changesareupstreamintheencoder).FourdifferentDABmodesexist.VAXmodel
transmittersuseDABmodeI.
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DAC DigitalAnalogConverterreferstoacircuitthatconvertsdigitalvaluesinsidetheprocessingstagesofthe
LPUmodulatorintoanalogRFwaveformsforamplificationandtransmissionbythetransmitter.
dBm Decibelsaboveamilliwattreferstoalogarithmicsignalpowermeasurementscalereferencedto1mW.0
dBmisequivalentto1mW.10dBm=10mW,20dBm=100mW,30dBm=1000mW.
DMB DigitalMultimediaBroadcastingisamodificationofthebasicDABsystemaccordingtoETSIstandard(TS
102427andTS102428)usingMPEG4(H.264)andBSAC/HEAACV2compressiontopermitsendingof
multimediainformation(radio,TV,anddatacasting)tomobiledevicessuchasmobilephones.Originally
developedinSouthKorea.
DNS TheDomainNameSystem(DNS)isanamingsystemforcomputersconnectedtotheInternetora
network.IttranslatesuserdomainnamestotheassignednumericalIPaddresses.
DUCDigitalUpconverterisacircuitintheLPUmodulatorsectionthatconvertsthedigitalmodulatedbaseband
signaltothe140MHzdigitalintermediate frequency.
DynamicDelay Referstoaprocessingfunctionprovidedinthemodulatorsectiontocompensatefordifferent
delaysoftheprogramdatastreaminthedatadistributionnetworkbetweenthenetworkoriginationpointand
varioustransmitter
sites.
A
time
stamp
contained
in
the
transport
stream
serves
as
areference.
The
present
timeisdeliveredbyaGPSreceiveratthetransmitter(1ppssignal,risingslope).Comparingthesetwosources,
thedynamicdelayfunctionisabletosynchronizetheprograminputtoalltransmittersoveraonesecond
correctionrange.
Ensemble Thecompleteinformationpayloadbeingreceivedandprocessedbythetransmitter,typicallywhen
transmittingaccordingtotheDABstandard.Ingeneral,theensembleincludesaudioprograms,dataservices,
andpossiblyvideocontent.
ETI EnsembleTransportInterfacereferstothetransportstreamformatforDAB/DMBbroadcasting(2.048
Mbit/s,G.703)usedtosendprogrammaterialfromtheensembleprovidertoallDABtransmittersinanetwork.
TheETIformathastwovarieties:ETINAandETINI.
ETI(NA)
Ensemble
Transport
Interface,
Network
Adapted
Layer,
is
aprotocol
suited
for
transmitting
the
ETI
signalviatelecomnetworks.IthasaframestructurethatcomplieswithG.704specificationsandcontainserror
protectioninformation(ReedSolomonCode).Thebitclockfrequencyis2.048MBit/s.
ETI(NI) EnsembleTransportInterface,NetworkIndependentLayer,isaprotocolissuitedfortransmissionwith
connectionsthathavealowerrorrateandaconstantsignaldelay.Itdoesnotcontainanyerrorprotection
information.Thebitclockfrequencyis2.048MBit/s.
EIB ETIInputBoardisanoptionalcircuitcardforthemodulatorsectionofthelowpowerunit(LPU).It
providesthenecessaryinterfacetoallowthemodulatortoacceptETItransportstreamsaccordingtotheDAB
digitaltransmissionstandard.
ESD Electrostaticdischargeisthetransferofstaticelectricitywhentwoobjectscomeintocontact.
Ethernet PhysicalinterfacebywhichadevicemaybeconnectedtoaLANand/ortheInternettoprovideweb
basedsupervision.ItgenerallyemploysanRJ45connector.
EVM ErrorVectorMagnitudeisameasureusedtoquantifytheperformanceofthequalitythedigitalbeing
transmitted.Asignalsentbyanidealtransmitterwouldhaveallconstellationpointspreciselyattheideal
locations.However,variousimperfectionsinthesignalpathcausetheactualconstellationpointstodeviate
fromtheideallocationsbyfiniteerrorvectors.GenerallyassociatedwiththeATSCmodulationstandard.
Analogoustothemodulationerrorration(MER)usedfortheDVB,DABandothermodulation
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FEFFutureExtension Frames
FFTFastFourier Transform
FPGA FieldProgrammableGateArray,isanintegratedcircuitdesignedtobeconfiguredbythecustomeror
designeraftermanufacturing.FPGAsperformmanyoftheintensivedigitalprocessingstepsusedtosynthesize
thetransmittedRFsignalintheLPUmodulatorsection.
GPSS GlobalPositioningSatelliteSystemissatellitebasednavigationsystemcommonlyusedfordetermining
positionandnavigating.Inasinglefrequencynetworkcontext,itdeliversanextremelyprecisetimereference
(UTC...universaltimecoordinated)thatisusedtosynchronizealltransmitters.
GUI GraphicalUserInterfaceisatypeofuserinterfacethatallowsuserstointeractwithelectronicdevicesvia
imagesratherthantextcommands.Inthisapplication,theuserinterfaceprovidedbyatouchscreenindual
drivesystemsorthewebbasedremoteinterfaceservedovertheEthernetinterface.
HierarchicalModeAtransmissiontechniquewherebythetransmitteddatapayloadisdividedintoalower
dataratehighpriority(HP)streamandahigherdataratelowpriority(LP)stream.Thosereceiverswithdifficult
receptionconditionsdecodeonlythemorerobustHPdatastream,whilereceiverswithgoodreception
conditionsreceive
both
data
streams.
Hotpluggable Termtodenotethatthedeviceinquestioncanberemovedwhiletransmitterisoperating
withoutsufferingdamageorcausingdamagetootherdevices.
HPF HighPowerFilteralsoreferredtoasmaskfilterorcriticalfilter.
HTML HyperTextMarkupLanguageisthepredominantmarkuplanguageforwebpages.HTMListhebasic
buildingblockofwebpages.
IP InternetProtocol
IPAddressInternetProtocolAddressisanumericallabelassignedtoeachdevice(e.g.,computer,printer)
participatingin
acomputer
network
that
uses
the
Internet
Protocol
(IP)
for
communication.
An
IP
address
servestwoprincipalfunctions:hostornetworkinterfaceidentificationandlocationaddressing.
ISP InSystemProgrammingreferstoaGatesAirutilityusedtoupdatetransmittersoftware.
LCD LiquidCrystalDisplayisathin,flatelectronicvisualdisplaythatusesthelightmodulatingpropertiesof
liquidcrystalstodisplaytextandimages.Oftenusedtorefertothebluedisplayscreenonthefrontpanelof
LPU(lowpowerunit).
LPF LowPassFilter.Typicallyinstalledclosetothetransmitteroutputport.Itisusedtoattenuateoutofband
emissionsatthesignalharmonicfrequenciesarisingfromthehighpoweramplificationprocess.Itmayalsobe
referredtoasaharmonicfilter.
LPU
LowPower
Unit.
Device
that
contains
modulator
(exciter)
and
amplifier
sections.
There
are
several
differentversionsofLPU.
LVDS LowVoltageDifferentialSignalling
MaskFilter Filterdesignedtopassaspecifiedfrequencyband.
MCM MasterControlModuleisacircuitboardintheTCU(transmittercontrolunit).TCUsareusedinsome
versionsofGatesAirtransmitters. LatermodeltransmittersusetheMSC2asatransmittercontroldevice.
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MER ModulationErrorRatioisameasureusedtoquantifythequalityofthedigitalbeingtransmitted.Asignal
sentbyanidealtransmitterwouldhaveallconstellationpointspreciselyattheideallocations.Howevervarious
imperfectionsinthesignalpathcausetheactualconstellationpointstodeviatefromtheideallocationsby
finiteerrorvectors.Themodulationerrorratioquantifiestheratioofthedesiredsignaltotheundesirederror
vectors.MERistypicallyassociatedwithCOFDMmodulationformatssuchasDVBorDAB.
MFS MegaFrameSync
MIB ManagementInformationBase
MIP MegaframeInitializationPacket
NICAM NearInstantaneousCompandedAudioMultiplex;earlyformoflossycompressionfordigitalaudio.
NIT NetworkInformationTable
PA PowerAmplifierisanelectroniccircuitthatacceptsalowlevelRFsignalandoutputsanamplifiedreplica.
PB PowerAmplifierBlockreferstoahighpoweramplifierstage.MayrefertotheLPUpoweramplifiersection
orone
or
more
high
power
amplification
stages
external
to
the
LPU.
PBs
are
typically
numbered
from
1n
with
PB1beingthehighestintherack.
PC PersonalComputer
PCBPrintedCircuitBoardinthetransmitter.
PCM ProcessorControlModuleisacircuitcardinthetransmittercontrolunit(TCU).TheMCMcardprovides
mostofthecorecontrolfunctions,whereasthePCMcardcontrolstheuserremote&GUIinterface.Later
modeltransmittersusetheMSC2insteadoftheTCU.
PFRU PreciseFrequencyReferenceUnitisacircuitsubassemblyinsidetheLPUmodulatorsectionresponsible
forsupplyingthevarioushighstabilityoscillatorsignalsrequiredtosynthesizetheRFwaveformthatwillbe
transmitted.
PLL PhaseLockedLoop
PRBS PseudoRandomBinarySequenceisanendlessseriesofrandomnumberstypicallyusedfortransmitter
testpurposes,oftenwhenavalidtransportstreamdoesnotexist.
PS PowerSupplyisadevicethatsuppliesDCelectricalenergytooneormoreelectricloads,typicallyviathe
rectificationofanACmainselectricalinput.
RF RadioFrequencyreferstoanelectricaloscillationatthefrequencyofradiowavesintherangeof3kHzto
300GHz.Inthisapplication,typicallyasignalinthe168MHzto242MHzfrequencyrangeoftheVAX
transmitter.
RS485 TIA/EIAstandardforserialmultipointcommunicationslines,alsoknownasEIA485andTIA/EIA485,is
astandarddefiningtheelectricalcharacteristicsofdriversandreceiversforuseinbalanceddigitalmultipoint
systems.ThestandardispublishedbytheTelecommunications IndustryAssociation/ElectronicIndustries
Alliance(TIA/EIA).
RTACTM RealTimeAdaptiveCorrectionisasignalprocessingtechniqueappliedinthemodulatorsignal
generationstagewhichseekstocorrectdistortionsproducedinthehighpoweramplificationandfiltering
stagesbymeansofpredistortion.
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RUIsanabbreviationforrackunit.Onerackunitequals1.75"(44.45mm).Therackunitisusedtodescribethe
heightofcomponentsthatwillbeplacedinracks.
SFN SingleFrequencyNetworkisatypeoftransmissionnetworkinwhichalltransmittersaresynchronizedin
frequencyandphase(symbol).Thistransmissiontechniqueoffershighfrequencyeconomy,asasingle
frequencycanbeusedinalargegeographicarea.
SMA SMAconnector consistsofa0.250x36thread.Themaleisequippedwitha.312inch(7.925mm)hex
nut.
SMPTE310AtransportstreamformatsometimesemployedwiththeATSCdigitaltelevisionstandard.Refers
tothesetofcooperatingstandardsthatlabelindividualframesofvideoorfilmwithatimecodedefinedbythe
SocietyofMotionPictureandTelevisionEngineers.
StaticDelay Adelayfunctionprovidedbytheexciteroveramanuallysettablerangeof0to1000msto
compensatefordifferencesinsignalprocessingdelaysorlocalpropagationconditionsforindividual
transmittersinasinglefrequencynetwork.
Sync(Syncpulse) Termusedinanalogbroadcasting thatreferstothehorizontalsynchronizationpulseinthe
videowaveform
which,
when
transmitted,
creates
the
highest
level
of
peak
envelope
power
in
the
transmitter.
TCO TotalCostofOperation
TII TransmitterIdentificationInformationisadatafieldtransmittedduringthenullintheDABRFframe
containingtransmitteridentificationinformationforusebythereceiver.Eachtransmitterinasinglefrequency
networkhasitsownuniqueTIIidentifier.
TimeStamps Datafieldsinthetransmissionprotocol(e.g.intheETIsignal)containingtiminginformationfor
thepurposesofsignalmonitoringandsynchronization.
TS TransportStreamreferstoastandardformatfortransmissionandstorageofaudio,video,anddatafor
broadcastsystemssuchasDVBandATSC.Thetransportstreamspecifiesacontainerformatencapsulating
packetizedelementary
streams,
with
error
correction
and
stream
synchronization
features
for
maintaining
transmissionintegritywhenthesignalisdegraded.Dependingonthedigitaltransmissionstandard,the
transportstreammaybeintheSMPTE310,ASI,orETIformat.
TPO TransmitterPowerOutputreferstothetransmitterforwardoutputpowerlevel.
TSP TransportStreamPacket
UDC UpDownConverterreferstoacircuitintheLPUmodulatorsectionthatconvertsan140MHz
intermediate frequencysignaltothefinaldesiredVHFRFchannelfrequency(upconversion)orviceversa(down
conversion)
UPS UninterruptablePowerSupplyisabatterybasedsystemdesignedtoprovidepowerduringanACmains
failureevent.
VGA VideoGraphicsArrayisavideodisplaystandardusedbythepersonalcomputerindustrybasedona640
x480pixelresolution.ThestandardusedbytheTCUtouchscreenindualdrivesystems.
VHFVeryHighFrequencyistheradiofrequencyrangeof30MHzto300MHz.Inthisapplication,the168MHz
to242MHzfrequencybandcoveredbyaVAXtransmitter.
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WEBAsystemofInternetserversthatsupportHTMLformatteddocuments.Adeviceorinterfacethatuses
HTMLformatteddocumentstransmittedaccordingtotheIPprotocol,typicallyoverLAN/WAN/Internetservers,
butalsolocallyvia1:1communications.
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1
8882743
001 WARNING:
Disconnect
primary
power
prior
to
servicing. Copyright2014,GatesAir,Inc
Maxiva ULX-T Series
March 8, 2015
Section-1 Introduction 1
1.1 Purposeof
This
Manual
ThistechnicalmanualcontainstheinformationpertainingtotheMaxivaULXTSeries,solidstate,liquidcooledUHFTVtransmitter.Thevarioussectionsofthistechnicalmanualcontainthefollowinginformation.
Section1,Introduction,providesgeneralmanuallayout,photos,equipmentdescription,blockdiagramandgeneralspecifications.
Section2,Installation,providesphysicalandelectricalinstallationproceduresforthetransmitter,cooling,RFsystems,andbasicremotecontrolconnections.
Section3,Operation,providesoperationalandnavigationinformationforthegraphicaluserinterface(GUI)aswellasidentificationandfunctionsofcontrolsandindicators.
Section4,MaintenanceandAlignments,providespreventativeandcorrectivemaintenanceinformationandfieldalignmentprocedures.
Section5,Maintenance,providesproceduresonsetupandcalibrationofthetransmitter Section6,Troubleshooting, Informationonlocatingfaultymoduleswithinthetransmitter Section7,PartsList,providesapartslistfortheoveralltransmitteraswellasindividualmodules.
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Section-1 Introduction
March 8, 2015
12
Copyright2014,
GatesAir,
Inc. WARNING:
Disconnect
primary
power
prior
to
servicing. 888
2743
001
1.2 GeneralDescription
ThissectioncontainsageneraldescriptionoftheMaxivaULXTSeriestelevisiontransmittersincludingcontrolsystem,PB(powerblocks),blockdiagramsandsystemspecifications.
Notes:
1.xx=Specificmodulationloadedinexciter:DV=DVBT/H,T2=DVBT2,IS=ISDBT/H,CM=CMMB,andCT=CTTB
2.ModelsULXT2throughULXT10featureinternalpumpmodule(6RU).
3.ULXT12throughULX30requireoneexternalpumpmodule.
4.ULXT40throughULX60requiretwoexternalpumpmodules.
5.SingleIPAmoduleisstandard.DualIPAisoptional
6.Singleexciterisstandard.Dualexciterkitisoptional.Excitersare1RUtall.
7.1RU
=44.45
mm
(1.75
inches)
in
height.
8.LCDcontrolpanelisstandard.GUI(panelPC)controlpanelisoptional.
9.Averagepowerlevelsprovidedmayvarywithfrequencyandconfiguration.
10.Specificationsaresubjecttochangewithoutnotice.
11.SinglePB(powerblock)xmtrsuseone20kWheatexchanger,twoandthreePBxmtrsuseone50
kWheatexchanger,four sixPBxmtrsusetwo50kWheatexchangers,eightPBxmtrsusethree50
kWheatexchangers.
Table11 MaxivaULXTPowerLevels
Model No. ofRacks
(RUperrack)
PumpModule
Type(numberof
dualpump
modules)
PreFilter
OFDMOutput
Power(W)
PreFilterATSC
OutputPower
(W)
No.ofPBs,
(PBheights
combinedRU)
ULXT2xx 1(37)
Internal(1 )
1,200 1,8001(7 )
ULXT4xx 1(37) 2,400 3,600
ULXT6xx 1(37) 3,600 5,400
1(12)ULXT8xx 1(37) 4,600 7,200
ULXT10xx 1(37) 5,500 9,000
ULXT12xx 1(37)
External(1 )
7,000 10,600
2(24)ULXT16xx 1(37) 9,000 14,200
ULXT20xx 1(37) 10,800 17,700
ULXT24xx 2(37)
External(2 )
13,400 21,1003(36)
ULXT30xx 2(37) 16,100 26,300
ULXT40xx 2(37) 21,400 35,100 4(48)
ULXT50xx 3(37)
External(3 )
26,500 43,400 5(60)
ULXT60xx 3(37) 31,800 52,100 6(72)
ULXT80xx 4(37) 42,300 69,700 8(96)
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Figure 1-1 ULXT Cabinet 2 PB
.
Figure 1-2 ULXT 1 PB (integrated pump module)
Front Rear
Front Rear
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1.2.1 SystemBlockDiagrams
Figure13containsasimplifiedblockdiagramshowingRfsignalflowinadualdrive,twopowerblock(PB)MaxivaULXTtransmitter.ThediagramdescribesRFpowerflowfromexciterthroughtransmitter,filtersandtoantenna.ThedrivechaincontainstwoexcitersandIPAs.
Figure 1-3 Maxiva ULXT Dual Drive System
Figure 1-4 Maxiva ULXT Single Drive System
PAModules
Splitter Combiner LPF
PB2
PA
ModulesSplitter Combiner
Exciter A
Exciter B
IPA A
IPA B
Load
LPF
BPFPB1
Combiner
Load
IPA A
IPA B
Load
Splitter
Splitter
Cabinet
PA
ModulesSplitter Co mb in er L PF
PB2
PA
ModulesSplitter Combiner
Exciter A IPA A
Load
LPF
BPFPB1
Combiner
Load
IPA A
Load
Splitter
Cabinet
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1.2.2 TransmitterACPower
ThreephaseACmainsmustbesuppliedtothecabinetsviacustomersuppliedACmainsbreakerorfusepanel.Thetransmittercanaccept208240VAC(DeltaorWYE)or380415VAC(WYE).Forinstallationinformationincludingbreakerandwiresizesseedrawing8399363312(withintegratedpump,singlepowerblock),8399363324(twopowerblocks),8399363334(threepowerblocks),8399363344(fourpowerblocks),8399363354(fivepowerblocks),8399363364(sixpowerblocks).
Caution
THREE PHASE 440-480VAC AC MAINS CAN ALSO BE USED BUT ONLY WITH
AN EXTERNAL TRANSFORMER WHICH CAN BE ORDERED SEPARATELY
FROM GATESAIR.
1.2.3 CoolingSystem
TheULXTtransmitterusesa50/50glycol/water,closedloop,coolingsystemtomovetheheatawayfromthetransmitter.RefertoAppendixBCoolingSystemHelpforadditionalcoolantinformation.AsimplifiedblockdiagramoftheliquidcoolingsystemisshowninFigure15.Thecoolingsystemincludes:
a. Coolingsystem
pump
module(s)
b. Heatexchanger(s)
c. SystemAirpurgerlocatedatthehighestpointinthecoolingsystem.
d. Coolantstrainerlocatedinthepumpmodule.
e. Supplyandreturnlinehose,valvesandfittings.
f. CoolingMonitorBoard
g. ExternalInterfaceBoard
h. TransmitterPAmodule,splitter,combinerandrejectloadcoldplates
Thecoolingsystemcomponentscombinetoproduceanefficientclosedloop,pressurizedsystem.Priortooperationthecoolingsystemmustbeproperlypreparedforoperationandbledtoremovetrappedair.InstructionsforcoolingsystempreparationcanbefoundinAppendixAofthismanual,intheHE2PumpModulemanual8882625002
(externalpumps),
Integrated
Pump
Module
manual
888
2853
001
(internal
pumps),
and
in
the
Heat
Exchanger
Manual8882852001.
Theheatexchangerandpumpmoduleoperatesoneither208240VAC,50/60Hzor380415VAC50/60Hz.Theoperatingvoltagesandfrequenciesmustbeprovidedattimeoforder.
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Figure 1-5 Simplified Liquid Cooling System Block Diagram
1.2.4 ExternalPumpModule/HeatExchanger
Theexternalpumpmoduleandheatexchangerareseparatemodularunits.Thepumpmoduleisselfcontainedinonerackandincludescontrolpanel,invertercontrollers,anexpansiontank,airpurger/vent,pressuregauges,pressurereliefvalve,strainer,anddualpumpsoperatinginmain/standbymode.Thepumpmoduleisdesignedforindooroperation.Thepumpmoduleandcontrolpanelshouldbelocatednearthetransmitterifpossible.Theheatexchangerassemblyisdesignedforoutdoormounting.
LowerpowerULXTtransmittershavepumpmodulesintegratedintothetransmittercabinet.Thesetransmittersstillrequireaheatexchangerunit.
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Figure 1-6 HEII External Pump Module
Figure 1-7 Heat Exchanger-Horizontal Air Flow
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Figure 1-8 Heat Exchanger-Vertical Air Flow
NoteThe heat exchanger shown in Figure 1-7is configured for horizontal air f low. The two fans pull airthrough the cooling coil/fins (not visible in the photos) and exhaust it parallel with the ground.Figure 1-8shows a unit configured for vertical air f low. Air flows upward in the vertical air flow unit. HE heatexchangers can be mounted for either horizontal or vertical air flow depending on how the legs areattached to the heat exchanger.
1.2.4.0.1 HeatExchangerFanControl
Multicabinettransmitterswilltypicallyhaveoneheatexchangerandcontrolpanel/pumpmoduleperPAcabinet.Thefansarecontrolledelectronicallyandenabledwheneverthepumpmoduleisconnectedtothetransmitterwithpowerapplied.Fanspeedsarecontrolledbythepumpmoduleinvertercontrolsandwillincreaseautomaticallyas
coolanttemperature
increases.
Cooling
fans
do
not
activate
until
the
coolant
temperature
rises
above
30
o
C.
1.2.4.0.2 PumpOperation/ControlLogic
Pumpoperationiscontrolledwithtwoinvertercontrollers(oneperpump).Therearetwomodesofpumpoperation,"LOCAL"and"REMOTE".ThepumpmodulecommunicateswiththetransmitterviatheexternalinterfaceboardlocatedinthetransmitterPB1.Whenthepumpmoduleissetto "LOCAL"astatussignalissenttothetransmitterexternalinterfaceboardreportingthemodeselection.
Iftransmitterissettoautomaticpumpswitchmode,lossofflowcausesactivationofthestandbypump.MinimumflowratesvarydependingonthenumberofPAmodulesandaregiveninSection2.13.1onpage214.
Note
Four pump switches in less than five minutes will cause both pumps to shut down and require operatorintervention to restart.
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1.3 ULXTSpecifications
Figure 1-9 ULXT Transmitter Specifications
NoteSee the M2X Exciter manual 888-2888-001 for modulation specific information.
SpeciicationsSpeciications and designs are subject to change without notice.
General
Frequency Range . . . . . . . . . . . . . . . 470 to 862 MHz, in 1 Hz steps
Transmission Standards . . . . . . . . . ATSC, DVB-T, DVB-T2, ISDB-Tb,
CTTB (DTMB)Channel Bandwidth . . . . . . . . . . . . . 6, 7 or 8 MHz (system ependent)
Rated Power Output. . . . . . . . . . . . . See chart below
Output Power Reduction Range . . 0 to -10 dB
RF Load Impedance . . . . . . . . . . . . . 50 ohms
VSWR . . . . . . . . . . . . . . . . . . . . . . . . . . Protected against open or short
circuit, all phase angles. Capable
o operation into ininite VSWR
with user-adjustable old back
threshold. Factory pre-set to
2.8% o nominal nameplate
power (VSWR = 1.4:1)
RF Output Connector . . . . . . . . . . . . 1-5/8, 3-1/8 or 4-1/16 EIA
(dependent upon power level)
Transmitter Dimensions . . . . . . . . . . Call Harris Broadcast
Transmitter Weight . . . . . . . . . . . . . . Call Harris Broadcast
AC MainsAC Line Voltage . . . . . . . . . . . . . . . . . 3 phase: 380 to 415 V, or 208 to
240 V, 50/60 Hz - speciy whenordering
AC Line Variation . . . . . . . . . . . . . . . . 15%, between 208 to 230 V or
380 to 400 V
Power Factor . . . . . . . . . . . . . . . . . . . >0.95
Environmental
Altitude . . . . . . . . . . . . . . . . . . . . . . . . Up to 3,000 m (9,843 f)
elevation above mean sea level
Ambient Temperature . . . . . . . . . . . 0 to 45 C (32 to 113 F) at
sea level (upper limit derated
2 C (3.6 F) per 300 m (984 f)
elevation AMSL)
Humidity . . . . . . . . . . . . . . . . . . . . . . . 95%, non-condensing
Cooling Method . . . . . . . . . . . . . . . . . Liquid-cooled, using 50/50 mix
o ethylene or propylene glycol
and water
Acoustic Noise . . . . . . . . . . . . . . . . . .
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Maxiva ULXT Series
March 8, 2015
Section-2 Installation 2
2.1 IntroductionThissectionprovidesinformationneededforinstallationandinitialturnonofaMaxivaULXT transmitter.DuetothemodularnatureoftheMaxiva,allmodelshavesimilarinstallationandtestingprocedures.
2.2 Documentation
Hardcopydocumentationmaynotbesupplied,intheseinstancesthereferenceddocumentscanbedownloadedfromtheGatesAirCustomerPortal.Accesstheportalviawww.gatesair.comandselecttheCUSTOMERLOGINtab.
Thetopleveldocumentpackagenumberforeachtransmittermodelis9882743001.
Thetransmitterdocumentpackageincludes:
1. 8882743001Thistechnicalmanual
2. 9399363300DrawingPackage,ULXTTransmitterSystemLevel.
3. 9399363301DrawingPackage,ULXTCabinetLevel(Schematics)MustbedownloadedfromGatesAirCustomerPortal
Thepumpmoduledocumentationshippedwiththetransmitterwilldependontransmittermodel.Thefollowingareavailable:
1. 8882625002TM,HE2PumpModule
2. 8882853001TM,IntegratedPumpModule
Excitertechnicalmanualsshipwiththetransmitter.Theexcitertechnicalmanualvarieswithmodulationtype:
1. 8882888001TM,M2XHardware
2.3 InstallationSequence
Stepsininstallationsectionsarenumbered,aseachstepiscompleted,thestepnumbercanbecircledtoindicatecompletion.Thisprovidesaquickcheckattheendoftheproceduretoinsurethatnostepwasskipped.
NoteIn case of discrepancy between connections listed in schematics versus information given in this manual,the wiring information in the schematics should be considered the most reliable. All connections listed inthis section should be verified with the schematics before initial turn on.
Whenperformingtheinstallation,afterthetransmittercabinet(s)areinplace,plantorunthetransmitteroutputtransmissionlinesfirst,thentheliquidcoolingsystemplumbinglines,andfinallytheelectricalconduitruns.Ifair
handling
duct
work
is
to
be
installed,
plan
all
of
the
RF,
plumbing
and
conduit
runs
to
leave
room
for
the
duct
work.
Thereasonforthisinstallationorderisthatrigidcoaxrunsmustbeinstalledwithminimumelbows.IftheRFrunsencounterobstaclessuchasliquidcoolantlines,conduit,andductworkmoreelbowswillberequired.TheRFlinesshouldhaveaminimumnumberofelbowsforbestperformance.
Heavydutyhosecanbeusedinsteadofrigidcopperline,hoseiseasiertoinstallandcanbeinstalledlast,aslongaslargeradiusturnsareusedandsharphosebendsareavoided.Hosemustbesupportedmorefrequentlythanrigidcopper.Goodsupportisrequiredtoavoidsagging,becauseitcantrapliquidwhenthesystemisdrained,stressthehoseatthesupportpoints,andifthesaggingissevere,causeflowrestrictionduetohosecollapseatthesupportpoints.Conduit(cable)traysofferthebestsupportforthecoolanthoseruns.
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2.4 OperatingEnvironment
Theselectionofaproperinstallationlocationisessentialforequipmentlongevityandreliability. Donotinstallthetransmitterinplaceswhereitmaybeexposedtomechanicalshocks,excessivevibration,dust,water,saltyair,oracidicgas.
Ambienttemperatureandrelativehumidityshouldalwaysrangebetweenthefollowinglimitsatthecabinet
installation
location: Ambienttemperature: 0to+45oC.Derate2degreesCper300mAMSL. Relativehumidity: 0to95%noncondensing
NoteFailure to follow these installation instructions may void the warranty.
2.5 TransmitterCabinetPlacement
Thetransmittercabinetshouldbeplacedwhereitwillhaveapproximately1meterclearanceoneachsideandinthe
back.
The
front
of
the
transmitter
should
have
a
clearance
of
at
least
1.5
meters
to
allow
access
for
removal
and
installationofthePAmodules. Ensurealllocalbuildingandelectricalcodesarefollowed.
Thereareseveraldrawingsincludedinthedrawingpackagetohelpplanthecabinetplacement:
OutlineDrawing RFEquipmentLayout LiquidCoolingSystemLayout
Warning
ALWAYS WORK WITH TWO PEOPLE AS CABINETS ARE HEAVY AND CAN TIP
OVER.
STEP
1 Remove
the
bolts
or
straps
that
hold
the
transmitter
to
wooden
pallet
and
carefully
slidethecabinetoffthepallet.
STEP2 Removereardoorandsetasideinasafeplacefortherestoftheinstallationprocess.
MULTICABINETMODELS:
STEP3 Placecabinetsinpositionandcarefullyalign.SeeAppendixAofthismanual.
ALLMODELS:
STEP4 Uselevellingshimsundertransmittercabinetasrequiredtomakesurethetransmitterislevelandsolid(notrocking).
STEP5 Ifrequiredbycode,anchorthecabinetstothefloor. Thereareholesinthebottomofthecabinetforthispurpose.
STEP6 Installdriptray.Thealuminumdriptrayslidesunderthetransmitterjustbelowthereardooropening.Thedriptrayrestsonthefloorandiscenteredunderneaththerearof
theMaxiva
ULXT
transmitter.
It
should
be
checked
periodically
for
presence
of
coolant
whichmayhaveleakedfromthetransmitter.
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2.6 RFSystemInstallation
TheULXTRFoutputconnectorsize dependsonthemodel(poweroutput).EachpowerblockRFoutputhasa31/8"EIAunflangedconnection. AlltransmittermodelshaveaRFoutputimpedanceof50ohmsunbalanced.Incaseswheretherearemultiplepowerblockscombinersmaybemountedtothetopofthecabinet,thesizeofthetransmissionlinewillbedependantonthetotalRFpoweroutput.SeeSection1ofthismanualforlinesizeinformation.
Therearetwomajorfactorsinselectingthecorrecttransmissionlinefortheapplication,linelossandlinepowerhandlingcapability. Airdielectriclinestendtobemoreefficientbutrequirepressurization. Foamdielectriclinestendtobelessefficient(moreloss).
Whenconsideringthepowerhandlingcapabilityoftheline,considerpeakvoltagesnotjustthepowerofthetransmitter. Environmentalconditionssuchashighheatmaylowerthepowerratingsoftheline.
Allairdielectrictransmissionlinesshouldbepressurizedtomanufacturerrecommendations.
Consultmanufacturertodeterminebestproductforeachsystem.
RefertotheRFSystemLayoutdrawingsandinstallationnotes.Largecombiniingsystemsmayhaveadditionaldocumentationprovidedbythemanufacturer.
BeforebeginningRFSysteminstallationthefollowingdocumentsshouldbereadilyavailable:
AppendixAofthismanual;CuttingandSolderingTransmissionLine
RFSystemLayoutprovidedbymanufacturerorGatesAir
NoteBefore RF System is connected to the transmitter output, the RF system should be checked for low VSWRat the transmitter operational channel, the filter in the system should be swept and plotted with the correctmarkers for the modulation type. Filter insertion loss should measured and verified to meet GatesAirspecifications. This information will be used in the "proof of performance" to show the system complieswith the spectrum mask
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2.7 ULXTSystemDocumentation
InstallationprocedureswillrelyheavilyondocumentationthatshipswiththeequipmentandisavailableviainternetontheGatesAircustomerportal.
Table21
TechnicalManuals
DrawingNumber Description
8882743001 ULXTtechnicalmanual(seeAppendixBforcoolinginformation)
8882625002 PumpModuletechnicalmanual(external)
8882853001 PumpModuletechnicalmanual(integrated)
8882852001 HeatExchangertechnicalmanual.
Table22 SystemInstallationDrawings9399363300
DrawingNumber Description
8435617101 WIRINGDIAGRAM,XTLIQUIDCOOLED
8435617112 WIRINGDIAGRAM,2PAULXT
8435617113 WIRINGDIAGRAM,4PAULXT
8435617114 WIRINGDIAGRAM,6PAULXT
8435617115 WIRINGDIAGRAM,8PAULXT
8435617116 10PAWIRINGDIAGRAM
8300000100 DIVIDER,SECTION 100
8399363311 OUTLINEDRAWING,ULXTRANSMITTERSINGLEPWRBLK
SECTION 100
8435617369 OUTLINEDWG,ULXTCABCONFIG'S
8399363314 WIRDIAG,SYSTEM,ULXTTRANSMITTERSINGLEPWRBLK
8399363313 LAYOUT,TYPICALRFSYSTEM,ULXTTRANSMITTERSINGLEPWRBLK
8399363310 BLOCKDIAGRAM,RFFLOW,ULXTTRANSMITTERSINGLEPWRBLK
8399363312 ACPOWERFLOW,ULXTTRANSMITTERSINGLEPWRBLK
8399363315 INSTALLATIONDWG,ULXTTRANSMITTERSINGLERACKCABINETHEINTEGRATE
PUMPSYSTEM
SECTION 200
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8399363325 WIRDIAG,SYST,ULXTMULTIPLEPOWERBLOCKS
8399363320 BLOCKDIAGRAM,RFFLOWULXTTRANSMITTERMULTIPLEPOWERBLOCK
CONFIGURATION(ULXT10,20,30,40,50,60)
8399363321 ACPOWERFLOW,ULXTTRANSMITTERSYSTEM,EXTERNALPUMPMODULE
8399363324 WIRDIAG,SYSTEM,ULXTTRANSMITTER2PWRBLK
SECTION 300
8399363316 WIRINGDIAGRAM,INTEGRATEDPUMPMODULE,ULXTTRANSMITTER
8435607530 W.DIAG+OUTLINE,HE2PUMPMODULE
8435617432 LAYOUT,TYPICALPLUMBINGULXTTRANSMITTERWITHEXTERNALPUMP
8435617766 LAYOUT,TYPPLUMBNGMULTIRACKULXT
Table22 SystemInstallationDrawings9399363300
DrawingNumber Description
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2.8 CoolingSystemInstallation
Referringtothedocumentationabovefollowthesestepsinordertosuccessfullycompletetheliquidcoolingsysteminstallation:
Warning
DO NOT ALLOW THE WATER TO FLOW THROUGH THE TRANSMITTER, TEST AND
REJECT LOADS OR ANY LIQUID COOLED FILTERS UNTIL THE SYSTEM HAS BEEN
THOROUGHLY FLUSHED AND FILLED WITH 50/50 SOLUTION OF GLYCOL AND
DISTILLED OR DEIONIZED WATER..
Warning
THE SYSTEM COOLANT PLUMBING LENGTH MUST NOT EXCEED 40 METERS (131
FEET) TOTAL LENGTH INCLUDING SUPPLY AND RETURN LINES. VERTICALLY A
MAXIMUM DIFFERENCE OF 8 METERS (26 FEET) BETWEEN THE PUMP MODULE/
HEAT EXCHANGER AND THE THE TRANSMITTER IS ALLOWABLE. CONTACT
GATESAIR SERVICE FOR MORE INFORMATION.
NoteBefore starting the cooling system installation be sure the transmitter cabinets are placed in their finallocation and the RF System has been fully installed.
STEP1 ReferringtoSection2Installation/InitialTurnonofHeatExchangermanual,completetheriggingandplacementsections
STEP2 ReferringtoSection2Installation/InitialTurnonoftheHE2PumpModulemanual,completetheoperatingenvironmentandplacementsections.
STEP3 Plumbinginstallation. Usingdocumentationoutlinedabove,installtheliquidcoolingsystem.
STEP4 Atthistimedonotconnecttheliquidcooledtestorrejectloads. Useashortlengthof
hoseto
bypass
each
of
them
until
the
system
is
thoroughly
flushed.
STEP5 Bypassthetransmittercabinets.
STEP6 CompletetheelectricalinstallationACMainsandcontroltothepumpmoduleandheatexchanger.Thiswillberequiredbeforethesystemcanbecharged.
STEP7 Chargethesystemusingclean,pure,wateronly.Distilledwaterispreferredbutcitytapwatercanbeusedbutitmustbecleanpotablewater.DONOTUSEWELLWATERasitmaycontainmineralsthatcouldcauseproblems.ThisprocedurecanbefoundintheHE2PumpModuletechnicalmanualSection2.
STEP8 Systemsthatareexcessivelydirtyoruserigidcopperlinemayrequireuseofacleaningsolution.Useacupofnonsudsingcleaningsolutionmixedinto2gallonsofwaterinacleanbucket.Drainthesystemandthenchargethesystemwiththecleaningsolutionandcleanwater. Turnonthepumpandflushthesystemfor30minutesoneachpump.
STEP9 Drainthesystemcompletely.Rechargethesystemusingdistilledwateronly.Flushfor30
minutes
on
each
pump,
this
is
to
ensure
all
of
the
cleaning
solution
is
removed
from
thesystem.
STEP10 Whenthedistilledwaterflushiscompletedrainthesystemcompletelyandinspectthewaterasitdrains.Itshouldbecleanandfreeofdebris.Ifdrainedwaterisnotclean,asecond,andpossiblyathird,cleanwaterflushmaybenecessary.Drainthesystem.
STEP11 Connectallthetestandrejectloadsatthistime.Openthetransmitterbypassvalves.
STEP12 Fillthesystemwith50/50glycol/distilledordeionizedwatersolution(asmeasuredwithahydrometerorrefractometer).Afterfillingthesystemtoastaticpressureof10psi,opentheautomaticairventinthepumpmoduleandinthecoolingsystem
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plumbing,then runthesystemfor30minuteswhilemonitoringthecoolantlevel.Shouldthereturnpressurefallbelow5psiaddadditional50/50glycolanddistilled/deionizedwatersolutiontokeepthesystemattheproperpressure.
Finalcoolingsystemsetupwillbecompletedlaterintheinstallationofthetransmitter.FlowratesandpumpcontrolshouldbeconfirmedwithallPAmodules,filters,andtestloadsinstalled.
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Figure 2-1 AC Mains 3-Phase Wye (shown) Connections
Caution
BE CERTAIN THAT THE INSULATION ON EACH AC SUPPLY CABLE HAS
BEEN SUFFICIENTLY CUT BACK TO ALLOW FULL CONTACT BETWEEN THE
CONNECTOR BLOCK AND THE COPPER CABLE. FAILURE TO REMOVE THE
INSULATION MAY RESULT IN HEATING AND FAILURE OF THE
CONNECTION.
STEP6 Repeatthesestepsforeachpowerblock.
STEP7 Leave
panel
off
of
the
AC
Distribution
box
on
rear
of
one
power
block
so
the
AC
voltagescanbeverifiedbeforeproceedingwithRFturnonprocedure.
STEP8 BeforeInstallingPAandpowersupplymodules,turntheACMainsonatthebreakerpanelandverifythecorrectvoltagefromLinetoLine(Delta)orLinetoNeutral(WYE).
STEP9 TurnACMainsOFFandreinstalltheACDistributionpanelscoversonalpowerblocks.
NoteL-L(Delta) or L-N(Wye) voltage mus be in the range of 200-264 VAC and there must be less than a 15%imbalance between any one phase and the average of all three phases to allow the transmitter to operate
ACInputWiresfromBreaker
Pullthroughconduitfrom
topofthecabinet
GroundConnection
NeutralConnection
Line13Connections
(WyeOnly)
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2.10 SignalandGroundConnections
NoteControl and signal wires should never be run in the same conduit with any AC wiring. A separate conduitshould be used for control/signal cables.
Itmay
be
necessary
to
refer
to
the
technical
manual
for
input
levels
and
impedances
for
proper
operation
of
the
auxiliaryequipment.
TheInstallationdrawingpackage9399363300shouldbereadilyavailableforreference.
STEP1 Connectthevideo/audio(analog)ortransportstream(digital)andreferenceinputstothetheirproperlocationontheexciter(s).ThedigitalTSinputconnectorsaretypeBNC,female.TSinputconnectorimpedancesare75ohms.Belden8281orsimilarhighqualityshieldedvideocablecanbeusedtodeliverthissignaltothetransmitteroveradistanceofupto1000feet.
NoteFor some modulation types, the ASI stream, or a test signal, is required for the exciter to un-mute.
Figure 2-2 M2X Rear Panel (no option board installed)
STEP2 IftheexciterisutilizingtheGPSoption,placetheantennaandconnectthecablefromtheantennatotheexciterGPSinputontherearpanel.Fordualexcitersasecond
antennaor
asplitter
will
be
required.
STEP3 IftheexciterisutilizingtheEXTREFInput10MHzor1PPS,connectBNCcabletotheproperconnectorontherearoftheM2X.ThismayrequiresetupintheGUI,refertoSection3ofthismanualfordetailsonhowtoconnectandlogintothetransmitterEthernetport.
STEP4 ConstructanRFsamplecablefortheboththeprefilter(nonlinear,Ifnotprovidedbyfactory)andPostFilter(linear)RTACfromtheoutputofthemaskfiltertotheRTACSplitterpanelinsideoftransmittercabinet(cabinet1onmulticabinetsystems).Donotconnectthecableonthesplitterend,thiswillhavetobepaddedfortheproperlevelintotheexciteroncethetransmitterisrunningatfullpower.RFcableandconnectorsareprovidedintheinstallationkitthatcamewiththetransmitter.
STEP5 Constructandconnectthepumpcontrolcable(s).Thiswillbeinstalledfromtherearofpowerblock1J2coolinginterface.SeeFigure23.
NoteIf two transmitters are controlling one pump module, a cable from each transmitter to the pump module isrequired.
OptionBoardSlot
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Figure 2-3 External I/O Boards A & B with Daughter Card #1 (dual drive system, cables removed)
STEP6 Connectagroundstrapfromeachcabinetsgroundbussbartostationground.ThecabinetgroundbusbarisshowninFigure24.Arollofcopperstraptypicallyshipswiththetransmitter.Rollthisstrapoutandattachoneendtothecabinetgroundbussbarandtheotherendtostationground.Theconnectiontothestationgroundshouldbesoldered.Ifanyadditionalcopper
strapis
required,
it
should
be
at
least
5cm
wide
and
0.5mm
thick.
Figure 2-4 Cabinet Ground Bus Bar (cabinet sides removed)
ExternalI/O B
ExternalI/O A
DaughterBoard#1 A
DaughterBoard
#1 B
CopperCabinet
GroundBusBar
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2.11 SystemandIntercabinetConnections
Formulticabinettransmittermodels,theintercabinet connectionswillneedtobeinstallednext.SeeSystemWiringDiagramsforreference.
Figure 2-5 External Interface & PB Daughter Board Configurationss
NoteRefer to Wiring Diagrams 839-9363-314 (single PB systems) and 839-9363-323 (two PB systems) forinformation regarding ULXT component interconnections.
DB #1
Ext. Interface
PB #1
DB #1
Ext. Interface
A
B
Single PB Dual Drive Systems
DB #1
Ext. Interface
PB #1
DB #2
Ext. Interface
A
B
DB #1
Ext. Interface
PB #2
Two PB Systems
ADB #1
Ext. Interface
PB #1
A
Single PB Single Drive Systems
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2.12 InstallPS(PowerSupply)Modules
STEP1 RemoveACfromthetransmitter.
STEP2 PriortoinsertingPSmodulesremoveallpackingsurroundingtheconnectorsinsidethecabinetandonthePSmodules.VisuallyinspectthePSconnectorsinsidethecabinetandonthemodulebacktobesuretheyareundamagedandfreeofdebrisofanykind.
Figure 2-6 PA & IPA (driver) slot locations
STEP3 BesurethatallPAmodulesarefullyseatedandtightenthemoduleholddownscrewswitha#2phillipsscrewdriver.
Caution
IF MODULES DO NOT SEAT WITH MODERATE PRESSURE REMOVE THE
MODULE AND CHECK FOR INTERFERENCE. DO NOT FORCE MODULESINTO THE RACK AS THIS MAY CAUSE DAMAGE TO THE CONNECTORS ON
THE BACK OF THE MODULE OR IN THE RACK.
Warning
THE MAXIVA PA MODULES ARE DESIGNED TO HANDLE VERY HIGH TEMPERA-
TURES AND MAY BE EXTREMELY HOT, UP TO 32OC (90OF) ABOVE ROOM TEM-
PERATURE. DO NOT TOUCH THE MODULES WITH BARE HANDS AFTER THE
TRANSMITTER HAS BEEN RUNNING. SPECIAL GLOVES CAN BE PURCHASED,
PART #0990006483 OR GRAINGER ITEM #4JF36.
STEP4 InstallallPSmodules.PSmodulesareinterchangeableandcanbeplacedinanyPSslot.BecertainthePSmodulesarefullseated.
STEP5 Endofprocedure.
IPAA
IPAB(optional)
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PS1
PS2
PS3
PS4
PS5
PS6
PS7
PS8
PS9
PS10
PSIPA(optional)
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2.13 FinalCoolingSystemSetup
Readandunderstandtheentireinitialturnonprocedurebeforestarting.LCDmenusandGUIscreensaredescribedinSection3Operationofthismanual.
STEP1 TurnonACmainstothetransmittercabinet(s)butleaveACpowertotheexcitersOFF.AtthistimewedonotwanttoproduceRFPower,justturnthepumpon.
STEP2 Connect
acomputer
with
web
browser
to
the
WAN
connection
of
the
transmitter
externalinterfaceboardthatisinpowerblock1(powerblockwithLCD).See"3.8.1GUILogin"onpage327fordetailedconnectionandlogininformation.
STEP3 Verifyalldrain,ventandbypassvalvesareclosedandmakesurecoolantvalvesareopenbeforeproceeding.
STEP4 Verifythatthecoolingsystemstaticpressureis1015psigwithpumpsoff.
NoteAir may be introduced into the cooling system as each PA module is installed. The cooling system willlikely need to be recharged after modules are installed. The site glass should be checked for fluid level andfor air bubbles prior to turning on the transmitter RF. Low coolant level or bubbles in the sight glass indi-cate that the cooling system needs to be recharged.
2.13.1 SettingtheTransmitterFlowRate
ThecoolantflowrateisdeterminedbytheHE2pumpmodule(orinternalpumps)inverter/controllerfrequency.FlowratemustbesetwithallIPAandPAmodulesinstalledinallpowerblocks.
TherecommendedflowratevarieswiththenumberofPAmodulesandislistedbelow.RefertotheHE2pumpmodulemanual8882625002Section3 Operation(orinternalpumpmodulemanual8882853001Section3)forinstructionsonsettinguptheinverter/controllers toproducethedesiredtransmitterflowrate.Whensettingthelowerlimitsettinginthepumpmoduleinverter,ensurethesetpointisslightlyabovetheminimumflowrateinordertopreventfrequentfaultsandpumpswitches.
NoteIf the pump is unable to deliver the required flow rate, check for correct wiring of the 3 AC phases. Incor-rect wiring of the 3-phase sequence would allow the pumps to operate but with much degraded perfor-mance.
STEP1 NavigatetotheGUICoolingscreen.SetthepumpAuto/ManualtoManualmode.
Table23
TransmitterCoolant
Flow
QuantityofPA
Modules
MinimumCoolantFlow
RateTripPointGPM/LPM
RecommendedCoolant
FlowRateGPM/LPM
MaximumCoolantFlow
RateTripPointGPM/LPM
2 2.3/8.7 2.8/10.6 4.0/15.1
3 2.9/11.0 3.5/13.2 5.0/18.9
4 3.5/13.2 4.3/16.3 6.0/22.7
5 4.1/15.5 5.0/18.9 7.0/26.5
6 4.7/17.8 5.7/21.6 8.0/30.3
7 5.3/20.1 6.4/24.2 9.0/34.1
8 5.8/22.0 7.1/26.9 10.0/37.9
9 6.4/24.2 7.8/29.5 11.0/41.610 7/26.5 8.5/32.2 12.0/45.4
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STEP2 FromthefrontpaneloftheULXTturnthetransmitterON. Theactivepumpshouldstartrunning.
STEP3 RefertotheHE2pumpmodulemanualSection3.1.1and
2.13.2 ConfirmationofAutoPumpSwitching
Oncetheinverter/controllerLL(lowlevel)issettheoperationofthetransmitterflowsensorcanbeconfirmedbythefollowing:
STEP1 SetHE2pumpmoduletoRemote.
STEP2 UseSystempageGUItoselectAutopumpcontrolmode.Thisactivatesautomaticpumpswitching.
STEP3 Turntransmitteron.
STEP4 Reducetheflowratethroughthecabinetbyslowlyclosingthecabinetcoolantinletvalve.Whentheflowratethroughthecabinetfallsbelowthetrippointtheflowwarningshouldactivateandthesystemshouldswitchtotheotherpump.
STEP5 Gobacktothenominalflowraterecommendedforthecabinetbyslowlyopeningthecabinetinletvalve.Thewarningshouldgoaway.
2.13.3 HeatExchangerFanControl
Fanoperationiscontrolledbythefaninverter/controllers. Thecontrollersautomaticallychangethefanspeedbasedontemperaturesensedintheheatexchangersupplyline.Thefansturnatalowspeedwhenthecoolanttemperatureis>30degreesC.andpowerisappliedtothetransmitterandpumpmodule.Thefaninverter/controllershavebeenprogrammedatthefactorysonosetupisrequired.
NoteIf fan activation is needed to check fan rotation but the transmitter is not available, the fan inverter/con-trollers must be set up for manual control to allow fan activation. This is accomplished by following theprocedure outlined in the HE2 pump module technical manual 888-2625-002 Section 3.
2.14 RFInitialTurnOn
Caution
THE TRANSMITTER SHOULD BE INITIALLY POWERED INTO THE TEST
LOAD.
STEP1 TurnonACmainsonatthewallbreakersforthetransmitter,exciterandcoolingsystem(pumpandheatexchanger).CheckAClinevoltagesPhasetoPhase(Delta)orPhasetoNeutral(Wye)toverifytheyarecorrect. ReinstalltheACDistributionboxlid.
STEP2 Set
the
transmitter
Remote
to
Disable
STEP3 ConnectcomputertofrontEthernetportoftheULXTandlogintoGUI.ForconnectionandlogininformationseeSection3.xofthismanual.
STEP4 SettheEthernetparametersinthetransmitterandtheexciter.
STEP5 Turndownthetransmitteroutputpowerlevelpriortoinitialstartup.HolddowntheLOWERbuttononthetransmitterfrontpanel.ThisassuresthatthetransmitterwillinitiallycomeonatalowRFoutputlevel.
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NoteTo set the power out to 0 W, press and hold the Power button under the LCD display then press the Lowerbutton to the right of the LCD, then release both buttons at the same time. This will set the Power ControlReference to 0. When raising power back up, press and hold the Raise button until the RF power is indi-cated on external meter. This may take a few seconds.
STEP
6 Press
the
transmitter
ON
button.
Press
and
hold
the
Raise
button
until
the
RF
power
on
theexternalwattmeterindicates25%ofTPO.
STEP7 VerifythatthecabinetreflectedpowerlevelsdisplayedontheOutputscreenarelow,4%)isindicativeofadefectivetransmissionlineconnection,testloadorotherproblem.Stopincreasingpowerandbegintroubleshootingifreflectedlevelsarehigh.
STEP9 Adjustcabinetphaseandgain(inmulticabinetsystems)toreducepowerintothecabinetcombinerrejectloads.IntercabinetphasingisaccomplishedviatheGUI(navigatetotheHome>Output>Phasescreen)toadjustthepreamplifiermodulephasingineachcabinetrelativetotheothercabinetstoreducepowertocommonrejectloads.PhaseandGainsetupprocedureisinSection5.Xofthismanual.
STEP10 Verify
that
the
transmitter
meter
readings
are
close
to
the
factory
test
data
meter
readings,especiallyallofthePAcurrentandvoltagereadings.
STEP11 IftheprefilterTPOrequiredisdifferentthanwhatthetransmitterwascalibratedatduringfactorytest,performtheSystemForwardPowerCalibrationprocedureinSection5.Xofthismanual.
STEP12 Letthetransmitterrunforanhour,checkalltheexternalcombiners,filtersandtransmissionlineforlocalizedheating.
STEP13 SetuptransmitternetworkparametersandIPaddresses.ThesearefactorysettoDHCPandallzero's. ThetransmitterIPaddresscanbesetbynavigatingtotheHome>System>SystemSetup>Networkscreen(seeFigure339onpage352).TheexciterIPaddresscanbeenteredbynavigatingtothe Home>System>System Setup>System Config>ExciterConfigscreen(seeFigure338onpage351).
STEP14 RefertotheExcitermanualandsetuptheRTAClevelforboththePreandPostfilter
sample.
Thismust
be
measured
at
the
exciter
RTAC
input
on
both
exciters.
(if
two
are
present).
STEP15 RefertotheExcitermanualandsetuptheRTACcorrectionbothexciters.Beforeproceedingwiththeinstallation,thetransmittershouldbemeetingtheemissionsmaskforthemodulationtypeandtheMERandSignalto noiseratioshouldbemeetingpublishedspecification.
STEP16 InthetransmitterGUISystemSetupscreen,settheVSWRFoldback(Range1.3to1.5:1),FwdPwrWarningandFaultthresholds.
STEP17 SetupParallelremotecontrol,seeSection2.15belowfordetailedconnectioninformation.
2.15 ExternalI/O
Board
TheSystemUserRemoteI/OJ3islocatedontherearofthepowerblock1ExternalInterfaceBoard.SeeFigure29below.Theconnectorisadsub25pinfemale,thematingconnectorisprovidedintheinstallationkitthatcamewiththetransmitter.
Theinterfacecontainscommandinputs,statusoutputsandmeteroutputs.Figure27showsasimplifiedschematicoftheCommandInputsandFigure28showsasimplifiedschematicoftheStatusOutputs.
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Figure 2-7 ULXT Command Inputs
Figure 2-8 ULXT Status Outputs
Figure 2-9 External I/O Board User Interface
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Table24 UserRemoteJ3PinAssignments
PlugPin Signal Explanation
Command
J31 TX
ON
Command Momentary
ground
turns
transmitter
RF
on;
requires
remote
to
be
enabled.
J32 TXOFFCommand
MomentarygroundturnstransmitterRFoff;RequiresRemotetobeenabled,
howeverthiscommandcanbeenabledregardlessoftheremoteEnable/
Disablestatusonfrontpaneloftransmitterbyswitchingexternalinterface
boardS15toon.
J33 POWERRAISE
Command
MomentarygroundraisestransmitterRFPower;RequiresRemotetobeenabled.
J34 POWERLOWER
Command
MomentarygroundlowerstransmitterRFPower;RequiresRemotetobeenabled.
J35 DRIVECHAINASELECT
Command
MomentarygroundswitchesDrivechaintoAside(DriveChainAisExciterAand
IPAA);RequiresRemotetobeenabled.
J36 DRIVECHAINBSELECT
Command
MomentarygroundswitchesDrivechaintoBside(DriveChainBisExciterBand
IPAB);RequiresRemotetobeenabled.
J37 RFMUTECommand ContinuousgroundrequiredfortransmittertoMute;commandcanbedisabled
byswitchingExternalInterfaceBoardS11toON.Shipsdisabledfromfactory.
J38 UPS/LOWPOWER
MODECommand
ContinuousgroundrequiredfortransmittertogotoLOWPOWERMODE;activeregardlessofRemoteenable/disablestate.LowpowermodecanbeusedtoreducethetransmitterRFpowerautomaticallytoaresetlevelwhenthispinisasserted.Forexampleitcanbeusedwhenswitchingtobackupgeneratorthatisunabletorunthetransmitteratfullpower.
J39EQUIPMENT
INTERLOCK
Command
Continuousgroundoropencircuitrequiredfortransmittertooperate;activeregardlessofRemoteenable/disablestate;Thisinputcanbeactivehigh(continuousopencircuit)withExternalInterfaceBoardswitchS17OFFor
active
low
(continuous
ground)
with
External
Interface
Board
switch
S1
7
ON.
Doesnot
fault
off
system,
transmitter
will
operate
as
soon
as
interlock
is
in
OK
state.
J324 INTERLOCKSOURCE
SafetyinterlockclosedcircuittoJ325willallowtransmittertooperate;opencircuittoJ325willfaultsystemoffandwillrequiremanualTXONcommandtoreturntooperation(J324toJ325mustbeclosed);activeregardlessofRemoteenable/disablestate.
J325 INTERLOCKRETURN GroundonExternalInterfaceBoard
UserRemote,Status,&Meter
J310 SYSTEMONStatus LowindicatesSystemisON;openindicatesSystemisOFF.
J3 11 DRIVECHAINB
Status
LowindicatesDriveChainBactive;openindicatesDriveChainAactive.
J3 12 SUMMARYFAULT
STATUS
Lowindicatestransmitterhasnofaults;openindicatestransmitterhasoneor
moreactivefaults.
J3 13 OUTPUTSUMMARY
Status
LowindicatestransmitterRFOutputnormal;openindicatestransmitterRFpowerhasdroppedbelowfaultthresholdsetinthetransmitteroutputGUIscreen(SeeSection3ofthismanual).
J314 POWERAMP
SUMMARYStatus
LowindicatestransmitterRFamplifiersarealloperatinginnormalcondition;openindicatesoneormoreamplifiersarefaulted.
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J31518 PROGFAULT14Status Thesestatusoutputsareprogrammablefromdropdownboxintransmitter
GUI,severalselectionsareavailable,seeSection3ofthismanual.
J3
19
FORWARDPOWER
Meter
DCVoltageproportionaltotheforwardRFpoweroutput;4VDC=100%(100%
ispower
transmitter
was
calibrated
to).
J320REFLECTEDPOWER
Meter
DCVoltageproportionaltothereflectedRF;4VDC=1.5:1(1.5:1isbasedonforwardpowertransmitterwascalibratedto).
J321 PAVOLTAGEMeter DCvoltageproportionaltothepowersupplyvoltagesetintransmitterSETUP
menu;4VDC=52VDC;PowerSupplysetrangeis44to52VDC
J322 PACURRENTMeterDCvoltageproportionaltothepowersupplytotalDCCurrentdrawnfromallpowersuppliesinthetransmitter;4VDC=100%;Scaledformodeloftransmitter(numberofpowersupplies)
J323 GROUND
Table24 UserRemoteJ3PinAssignments
PlugPin Signal Explanation
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MaxivatmULXT
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Section-3 Operation 3
3.1 IntroductionThissectioncontainsnormaldaytodayoperationalproceduresandinformationpertainingtothefunctionoftheMaxivatmULXTTransmitters.Theinformationcontainedinthissectionassumesthetransmitterhasbeeninstalledcorrectlyandisinproperworkingorder.SeeSection2ofthismanualforinstallationandinitialturnonsteps.Itisimportantthattheoperatorbeawareofnormaltransmitteroperationandperformanceandnoteanychangesorfaultindications.Changesinoperationmayindicateaneedformaintenanceorcorrectiveactionbeforeamoreseriousproblemdevelops.RefertotheFactoryTestData(FTD)whichincludesmeterreadings,measuredperformancedata,informationanddatameasuredwithexternalequipment,andadjustmentsspecificallyforeachtransmitters operatingfrequencyandpowerlevel.
3.2 Controls and Indicators
Thefollowingsectionidentifiesthelocationandfunctionofallfrontoftransmittercontrolsandindicatorsfor
operationof
the
ULXT
Transmitters.
Figure 3-1 Front Panel Controls and Indicators
NoteIP address shown in the LCD is the rear Ethernet port.
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3.2.1 Front Panel Controls and Indicators
Table describesthefunctionsofthefrontpanelcontrolbuttonsaswellaswhateachLEDrepresents.Moredetailedinformationcanbefoundlaterinthissection.
Table 3-1
3.2.2 ON/OFF Operation
ToturnthetransmitterONfromthefrontpanelpresstheGreenONbutton.Thefollowingshouldoccur:
GreenONbuttonLEDshouldilluminate Powersupplyinternalfansturnon Fansonreardoorofeachpowerblockshouldturnon Excitershouldunmute RFshouldrampupfrom0wattstoTPOToturnthetransmitterOFFfromthefrontpanelpresstheRedOFFbutton.Thefollowingshouldoccur:
Red
OFF
button
LED
should
illuminate Powersupplyfansturnoff Fansonreardoorofeachpowerblockshouldturnoff Excitershouldmute RFshouldrampdownfromTPOto0watts
Front Panel Control ButtonsButton Explanation
STATUS DisplaystheStatusMenuincludingtheEventLogandmeterreadings
POWER Displaysmodel,forward/reflectedpowerlevelsandsystemvoltageandcurrent
readings
SETUP DisplaysthesetupmenusontheLCD,includesconfigurationandcalibrationof
thetransmitter
UP/DOWN/LEFT/RIGHT
UsedforLCDmenunavigation.Theupanddownbuttonsareusedtomovethe
arrowcursor,whichindicatesthemenulinethatwillbeactivatedbypressingthe
blackenterbutton.Theleftbuttonisprimarilyusedasabackbuttontoreturnto
apreviousmenuselection
ENTER This
is
the
black
button
in
the
center
of
the
UP/DOWN/LEFT/RIGHT
buttons.
Used
toselect(highlight)orexpandLCDmenuitems
REMOTEENABLE AllowsremotecontroloftheULXT(IP,SNMPandParallelI/O);DisablesLocal
controlincludingfrontEthernetportandLCDcontrol/config
REMOTEDISABLE DisablesremotecontroloftheULXT(IP,SNMPandParallelI/O);EnablesLocal
ControlincludingfrontEthernetportandLCDcontrol/config
POWERRAISE RaisestheRFpoweroutput
POWERLOWER LowerstheRFpoweroutput
ON TurnsTransmitterRFON
OFF TurnsTransmitterRFOFF
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3.2.3 Power Raise/Lower Procedure
Toraiseorlowerpower,pressandholdtheRAISEorLOWERbuttonuntilthedesiredpowerlevelisreached.
NoteSmall time delay: When pressing the RAISE or LOWER buttons, a small delay occurs before the transmit-
ter power actually changes. The same is true when releasing the RAISE or LOWER button. The outputpower will continue to change momentarily upon release. This is normal. The control circuits are scan-ning all of the critical functions and parameters of the transmitter to protect it from an overload. This cre-ates the slight delay. When setting the power out to a very specific level, release the buttons before thedesired power level is reached. Then give short momentary presses to nudge the power to the exact leveldesired.
3.2.4 Remote Enable/Disable Buttons
PressingtheRemoteEnablebuttonallowsthetransmittertobecontrolledbyacustomerprovidedremotecontrolsystemfromoffsite.WhenusingtheGUIorSNMPviaRearEthernetport,nochangescanbemadeunlesstheRemoteisENABLED.
ThefrontpanelEthernetportandLCDmenusareconsideredaLocalportonthetransmitter,thereforetheRemote
must
be
Disabled
for
changes
to
made.
This
port
should
never
be
connected
to
a
network,
it
is
a
DHCP
server.
Caution
WHENEVER WORK IS BEING PERFORMED ON THE TRANSMITTER SYSTEM,
ALWAYS DISABLE THE REMOTE CONTROL SYSTEM BY PRESSING THE DISABLE
BUTTON. THIS WILL PREVENT ANOTHER OPERATOR FROM TURNING THE
TRANSMITTER ON WHILE WORK IS BEING PERFORMED ON IT.
CautionALWAYS CHECK TO VERIFY THE REMOTE ENABLED LIGHT IS ILLUMINATED
BEFORE LEAVING THE TRANSMITTER SITE. A REMOTE CONTROL SYSTEM
CANNOT GAIN CONTROL OF THE TRANSMITTER IF THE DISABLED LIGHT IS
ILLUMINATED. THIS IS AN IMPORTANT SAFETY FEATURE. IF NO REMOTE
CONTROL SYSTEM IS UTILIZED, THEN LEAVE THE TRANSMITTER IN THE
REMOTE DISABLE MODE.
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Table 3-2 Front Panel LEDs
StatusLEDs States Explanation
EXCITER Green=OK
Red=FaultRepresentsthestatusoftheOnairExciter
DRIVECHAIN
Green=OK
Amber/Yellow=Auto
Switched
Red=Fault
RepresentsthestatusofallIPAsinthetransmitterandAuto
Switchingrelay(s)
POWERAMP Green=OK
Red=Fault
RepresentsasummarystatusoftheallPAModulesinthe
transmitter
POWER
SUPPLY
Green=OK
Red=Fault
RepresentsasummarystatusofthePowerSuppliesinthe
transmitter
OUTPUT
Green=OK
Amber/Yellow
=
WarningRed=Fault
RepresentsthestatusoftheRFOutputsystem.Whenthe
transmitterisswitchedoff,theOUTPUTLEDisoff
Green:Thetransmitterisswitchedon,andtheRFoutputlevel
iswithin+/10%ofcalibratedpower
Yellow:The
transmitter
is
switched
on
and
an
Output
warning
exists;eitherVSWRorpowerisbelowwarningthreshold
Red:ThetransmitterhasanOutputFault(VSWR)orpoweris
belowfaultthreshold
SYSTEM
Green=OK
Amber/Yellow=Warning
Red=Fault
Representsasummarystatusofthetransmittersystemcontrol
andcooling.
Green:SystemNormal
Yellow:AControlorCoolingWarningexists
Red:AControlorCoolingFaultexists
MUTE Green=OK
Red
=
RF
Muted
Green:IndicatesthetransmitterisOFForthetransmitterisON
andunmuted.
Red:
Indicates
the
transmitter
is
switched
on,
but
the
RF
output
ispresentlymuted.
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MaxivatmULXT
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8882743
001 WARNING:
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primary
power
prior
to
servicing. Copyright2014,GatesAir,Inc
3.3 Internal Controls, Indicators and RF Sample ports
ThefollowingfiguresshowtheSystemInterface(inallpowerblocks)
Figure 3-2 10 PA Power Block
NoteIPA power supply is optional and may not be installed in all model transmitters.
Figure 3-3 Control (System) Interface Board
Thereare2pairsofcontrolswitchesand6LEDstatusindicatorsontheboard.
TXControlSwitchesandLED:AllowsthetransmittertobeturnedONorOFFinbothNormalmodeorBackupMode(MicroModulehasfailed)
DRIVESwitches:AllowsswitchingtotheoffairDriveChain.DrivechainconsistsofExciterandIPA.Whenthedriveisswitched,allIPAsinallpowerblocksswitchsimultaneously.InotherwordsifthedriveisswitchedtoB,ExciterBandallpowerblockswillbeonIPAB.Whenswitchingdrivechains,theexternalI/Oboard(topboardisAandbottomboardisB)willbeenabled/disabledaccordingtothedrivechainonair.
REMOTE:IlluminateswhenfrontpanelRemoteEnablebuttonispressed RFMUTE:IlluminateswhenanyRFMuteactionoccurs BACKUPMODE:IlluminatesREDwhenupperNORMAL/BACKUPswitchselectsBACKUPorwhenMicrofails
IPAA
IPAB
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PS1
PS2
PS3
PS4
PS5
PS6
PS7
PS8
PS9
PS10
PSIPA
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Section-3 Operation
March 8, 2015
36
Copyright2014,
GatesAir,
Inc. WARNING:
Disconnect
primary
power
prior
to
servicing. 888
2743
001
3.4 LCD Navigation Tutorial
Thenavigationbuttoniscomprisedof5separatebuttons,Left,Right,Up,Down,andthecenterBlackENTERbutton.Thesebuttonsallowtheusertonavigatethroughthemenuscreens,POWER,STATUSandSETUPbyscrollingupordown,andleftandrighttoselectdifferentpages.TheleftbuttonsometimesworksasaBackbuttontogobackonescreen(page).
LookingatFigure34leftscreen,thereisanarrowontheleftsidebyTXCONTROL.Thearrowindicatestherearemore
menus
or
information
that
can
be
viewed
under
TX
CONTROL
by
pressing
the
ENTER
button.
InthecaseofadiamondshapeontheleftsideofthescreenasinFigure34rightscreen,thisindicatesthereismoreinformationthatcanbeviewedbyusingtheUP/DOWNbutton.
Caution
THERE IS A DIPSWITCH SETTING ON THE CONTROL/DISPLAY BOARD THAT
LOCKS THE FRONT PANEL OUT WHEN REMOTE IS ENABLED. IF THE SWITCH
IS SET TO FRONT PANEL DISABLE, NO CHANGES TO SETUP CAN BE MADE
UNTIL THE REMOTE IS DISABLED. SEE SECTION 5 DIPSWITCH SETTINGS FOR
DETAILS.
Figure 3-4 LCD Screen Navigation
Inthe
SETUP
menu
can
be
used
to
configure,
control
and
calibrate
the
transmitter.
When
navigating
the
SETUP
screenthefollowingstepsmaybeusedasanexample.InthisexampletheDatewillbechanged.AfterpressingtheSETUPbutton,scrolldowntoSYSTEMSETUP(seeFigure34,right),pressENTERandthescreenshowninFigure35,leftwillbedisplayed.
Figure 3-5 Date Setup
TheDATEscreendisplaysthecurrentdate(month/day/year)information.PresstheENTERbuttonwhenthearrowisnexttotheselectionyouwishtochange,theselectionwillbehighlightedasshowninFigure35rightscreen.TochangetheMONTH,ensurearrowisnexttoMONTHandhighlightitbypressingENTER,usetheupordownbuttonstochangethedisplayedmonth,andthenpressENTER.PresstheAPPLYDATEbuttontoactivatethechange.UsetheUPorDOWNbuttonsuntilthearrowisnexttoDATE,presstheENTERbuttontohighlightDATE,usetheupdownarrowbuttonstochangethedate,andthenselectAPPLYDateandpressENTERtosavethechange.
InsomecasessuchasNUMEXCITERSsetup,anentrymustbechangedfrom1to2.TheLCDscreenshowsNUMEXCITERS:1asinFigure36,inthiscasewhentheNUMEXCITERSlineishighlightedbypressingENTERtheUP/
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MaxivatmULXT
March 8, 20153
8882743
001 WARNING:
Disconnect
primary
power
prior
to
servicing. Copyright2014,GatesAir,Inc
DOWNbuttonscanbeusedchangetheentryfrom1to2.WhenthedesirevalueisdisplayedsimplypresstheENTERbuttontosavethechange.
ThemenutreesforthePOWER,STATUSandSETUPmenusfollowthissection.OnlytheSETUPscreensallowtheusertomakechanges,POWERandSTATUSareusedonlytodisplaystatusvalues.Followingtheexamplesabovewillallowtheusertogetcomfortablew