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TEX30LCD TEX50LCD TEX100LCD TEX150LCD TEX300LCD

USERMANUALVOLUME1

Manufactured by R.V.R ELETTRONICA S.p.A. Italy

TEX30LCD TEX50LCD TEX100LCDTEX150LCDTEX300LCD-UserManualVersion1.0

©Copyright2012R.V.R.ElettronicaSpAViadelFonditore2/2c-40138-Bologna(Italia)Telephone: +390516010506Fax: +390516011104Email: [email protected]: www.rvr.it

AllrightsreservedPrintedandboundinItaly.Nopartofthismanualmaybereproduced,memorizedortransmittedinanyformorbyanymeans,electronicormechanic,includingphotocopying,recordingorbyanyinforma-tionstorageandretrievalsystem,withoutwrittenpermissionofthe

File Name: TEX30_50_100_150_300-LCD_ING_1.0.indb

Version: 1.0

Date: 29/11/2012

Revision History Date Version Reason Editor29/11/2012 1.0 FirstVersion J.H.Berti

TEX30/50/100/150/300LCDELETTRONICA

iUser Manual Rev. 1.0 - 29/11/12

Table of Contents 1. Preliminary Instructions 1 2. Warranty 1 3. First Aid 2 3.1 Treatmentofelectricalshocks 2 3.2 TreatmentofelectricalBurns 2 4. General Description 3 4.1 Unpacking 3 4.2 Features 3 4.3 FrontalPanelDescription 5 4.4 RearPanelDescription 6 4.5 ConnectorsDescription 7 4.6 TechnicalDescription 9 5. Quick guide for installation and use 10 5.1 Preparation 10 5.2 Firstpower-onandsetup 12 5.3 Operation 14 5.4 ManagementFirmware 16 5.5 OptionalFunction 22 6. IdentificationandAccesstotheModules 24 6.1 IdentificationoftheModules 24 7. Working Principles 27 7.1 TEX30/50/00/50/300LCDCommonParts 27 7.2 TEX30LCDDifferentParts 28 7.3 TEX50/100/50LCDDifferentParts 29 7.4 TEX300LCDDifferentParts 31

ii User ManualRev. 1.0 - 29/11/12

TEX30/50/100/150/300LCD ELETTRONICA

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1 / 32User Manual Rev. 1.0 - 29/11/12

1. Preliminary Instructions• General Warnings

This equipment should only be operated, installed andmaintainedby“trained”or“qualified”personnelwhoarefamiliarwithrisksinvolvedinworkingonelectricandelectroniccircuits.“Trained”meanspersonnelwhohavetechnicalknowledgeofequipmentoperationandwhoareresponsiblefortheirownsafetyandthatofotherunqualifiedpersonnelplacedundertheirsupervisionwhenworkingontheequipment. “Qualified” means personnel who are trained in andexperienced with equipment operation and who areresponsiblefortheirownsafetyandthatofotherunqualifiedpersonnelplacedundertheirsupervisionwhenworkingontheequipment.

WARNING: Residual voltage may be present inside theequipmentevenwhentheON/OFFswitchissettoOff.Before servicing the equipment, disconnect thepower cordor switchoff themainpowerpanel andmakesure thesafetyearthconnection isconnected. Someservice situationsmay require inspecting theequipmentwithlivecircuits.Onlytrainedandqualifiedpersonnelmayworkontheequipmentliveandshallbeassistedbyatrainedpersonwhoshallkeepreadytodisconnectpowersupplyatneed.

R.V.R. Elettronica S.p.A.shallnotbeliableforinjurytopersonsordamagetopropertyresultingfromimproperuseoroperationbytrained/untrainedandqualified/unqualifiedpersons.

WARNING:Theequipmentisnotwaterresistant.Anywaterenteringtheenclosuremightimpairproperoperation. Toprevent the riskof electrical shockorfire,donotexposethisequipmenttorain,drippingormoisture.

Pleaseobservelocalcodesandfirepreventionruleswheninstallingandoperatingthisequipment.

WARNING: This equipment contains exposedlivepartsinvolvinganelectricalshockhazard.Alwaysdisconnectpowersupplybeforeremovinganycoversorotherpartsoftheequipment.

Ventilationslitsandholesareprovidedtoensurereliableoperation and prevent overheating; do not obstruct orcovertheseslits.Donotobstructtheventilationslitsunderanycircumstances.Theproductmustnotbeincorporatedin a rack unless adequate ventilation is provided or themanufacturer’sinstructionsarefollowedclosely.

WARNING: This equipment can radiateradiofrequencyenergyand,ifnotinstalledincompliancewithmanual instructionsandapplicable regulations,maycauseinterferencewithradiocommunications.

WARNING: This equipment is fittedwith earthconnectionsbothinthepowercordandforthechassis.

Makesurebothareproperlyconnected.

Operationofthisequipmentinaresidentialareamaycauseradiointerference,inwhichcasetheusermayberequiredtotakeadequatemeasures.

Thespecificationsanddatacontainedhereinareprovidedforinformationonlyandaresubjecttochangeswithoutpriornotice.R.V.R. Elettronica S.p.A.disclaimsallwarranties,express or implied.While R.V.R. Elettronica S.p.A.attemptstoprovideaccurateinformation,itcannotacceptresponsibilityorliabilityforanyerrorsorinaccuraciesinthismanual,includingtheproductsandthesoftwaredescribedherein.R.V.R. Elettronica S.p.A.reservestherighttomakechangestoequipmentdesignand/orspecificationsandtothismanualatanytimewithoutpriornotice.

• Notice concerning product intended purpose and use limitations.

Thisproduct isaradiotransmittersuitableforfrequency-modulation audio radio broadcasting. Its operatingfrequenciesarenotharmonisedindesignatedusercountries.Be fo re opera t ing th i s equ ipmen t , use r mus tobtain a l icence to use radio spectrum from thecompetent authority in the designated user country.Operating frequency, transmitter power and othercharacteristicsof the transmissionsystemaresubject torestrictionsasspecifiedinthelicence.

2. WarrantyLaR.V.R. Elettronica S.p.A.warrantsthisproducttobefreefromdefectsinworkmanshipanditsproperoperationsubjecttothelimitationssetforthinthesuppliedTermsandConditions.PleasereadtheTermsandConditionscarefully,aspurchaseoftheproductoracceptanceoftheorderacknowledgementimply acceptance of the Terms and Condit ions.Forthelatestupdatedtermsandconditions,pleasevisitourwebsiteatWWW.RVR.IT.Thewebsitemaybemodified,removedorupdatedforanyreasonwhatsoeverwithoutpriornotice.Thewarrantywill becomenull andvoid in theevent theproduct enclosure is opened, the product is physicallydamaged,isrepairedbyunauthorisedpersonsorisusedforpurposesotherthanitsintendeduse,aswellasintheeventofimproperuse,unauthorisedchangesorneglect. Intheeventadefectisfound,followthisprocedure:

1 Contactthesellerordistributorwhosoldtheequipment;provideadescriptionoftheproblemormalfunctionfortheeventaquickfixisavailable.

Sellers and Distributors can provide the necessaryinformationtotroubleshootthemostfrequentlyencounteredproblems. Normally, Sellers and Distributors can offer afasterrepairservicethantheManufacturerwould.Pleasenote that Sellers can pinpoint problems due to wronginstallation.

2 IfyourSellercannothelpyou,contactR.V.R. Elettronica S.p.A.anddescribetheproblem;ifourstaffdeemsitappropriate,youwillreceiveanauthorisationtoreturntheequipmentalongwithsuitableinstructions;

3 Whenyouhave received theauthorisation, youmayreturntheunit.Packtheunitcarefullybeforeshipment;usetheoriginalpackagingwheneverpossibleandsealthepackageperfectly.Thecustomerbearsallrisksofloss(i.e.,R.V.R.shallnotbeliableforlossordamage)untilthepackagereachestheR.V.R.factory.Forthisreason,werecommendinsuringthegoodsfortheirfullvalue.ReturnsmustbesentonaC.I.F.basis(PREPAID)totheaddressstatedontheauthorisationasspecifiedbytheR.V.R.ServiceManager.

IMPORTANTThesymboloflightninginsideatriangleplacedontheproduct,evidencestheoperationsforwhichisnecessarygaveitfullattentiontoavoidriskofelectricshocks.

Thesymbolofexclamationmarkinsideatriangleplacedontheproduct,informstheuseraboutthepresenceofinstructionsinsidethemanualthataccompaniestheequipment,im-portantfortheefficacyandthemaintenance(repairs).

2 /32 User ManualRev. 1.0 - 29/11/12


Unitsreturnedwithoutareturnauthorisationmayberejectedandsentbacktothesender.

4 Be sure to include a detailed report mentioning allproblems you have found and copy of your originalinvoice(toshowwhenthewarrantyperiodbegan)withtheshipment.

Pleasesendspareandwarrantyreplacementpartsorderstotheaddressprovidedbelow.Makesuretospecifyequipmentmodelandserialnumber,aswellaspartdescriptionandquantity.

R.V.R.ElettronicaS.p.A.ViadelFonditore,2/2c40138BOLOGNAITALYTel.+390516010506

3. First AidAllpersonnelengagedinequipmentinstallation,operationandmaintenancemustbefamiliarwithfirstaidproceduresandroutines.

3.1 Electricshocktreatment

3.1.1 Ifthevictimisunconscious

Followthefirstaidproceduresoutlinedbelow.

• Laythevictimdownonhis/herbackonafirmsurface.

• theneckandtilt theheadbackwardstofree

theairwaysystem(Figure 1).

Figure 1

• Ifneeded,openthevictim’smouthandcheckforbreathing.

• Ifthereisnobreathing,startartificialrespirationwithoutdelay(Figure 2)asfollows:tilttheheadbackwards,pinchthenostrils,sealyourmoutharoundthevictim’smouthandgive four fastrescuebreaths.

Figure 2

• Check for heartbeat (Figure 3); if there isno heartbeat, begin chest compressionsimmediately(Figure 4)placingyourhandsinthecentreofthevictim’schest(Figure 5).

Figure 3 Figure 4 Figure 5

• Onerescuer:give2quickrescuebreathsaftereach15compressions.

• Tworescuers:onerescuebreathaftereach5compressions.

• Donotstopchestcompressionswhilegivingartificialbreathing.

• Callformedicalhelpassoonaspossible.

3.1.2 Ifthevictimisconscious• Covervictimwithablanket.

• Trytoreassurethevictim.

• Loosenthevictim’sclothingandhavehim/herliedown.

• Callformedicalhelpassoonaspossible.

3.2 Treatment of electric burns

3.2.1 Largeburnsandbrokenskin• Cover affected area with a clean cloth or

linen.

• Donotbreakanyblisters thathave formed;removeanyclothingorfabricthatisstucktotheskin;applyadequateointment.

• Administeradequatetreatmentforthetypeofaccident.

• Get the victim to a hospital as quickly aspossible.

• Elevatearmsandlegsifinjured.

Ifmedicalhelpisnotavailablewithinanhour,thevictimisconsciousandisnotretching,administerasolutionoftablesalt and baking soda (one teaspoon of table salt to halfteaspoonofbakingsodaevery250mlofwater).

Havethevictimslowlydrinkhalfaglassofsolutionforfourtimesduringaperiodof15minutes.

Stopatthefirstsignofretching.

Donotadministeralcoholicbeverages.

3.2.2 Minorburns• Applycold(noticecold)stripsofgauzeordress

woundwithcleancloth.

• Donotbreakanyblisters thathave formed;removeanyclothingorfabricthatisstucktotheskin;applyadequateointment.

• Ifneeded,havethevictimchangeintoclean,dryclothing.

• Administeradequatetreatmentforthetypeofaccident.

• Get the victim to a hospital as quickly aspossible.

• Elevatearmsandlegsifinjured.


3 / 32User Manual Rev. 1.0 - 29/11/12

4. General DescriptionTheTEX30/50/100/150/300LCD,manufacturedbyR.V.R. Elettronica SpA,areexcitersforFrequencyModulatedaudio broadcastinginafrequencymodulationabletotransmitinthebandbetween87.5and108MHz,instepof10KHz,withanRFoutputpoweradjustableuptoamaximumof30,50,100,150and300Wrespectivelyintoa50Ohmstandardload.

TheTEX30/50/100/150/300LCDaredesignedtobeingcontainedintoa19”rackboxof2HE.

4.1 Unpacking

Thepackagecontains:

1TEX30LCD,TEX50LCD,TEX100LCD,TEX150LCDorTEX300LCD

1UserManual

1Mainspowercables

ThefollowingaccessoriesarealsoavailablefromYourR.V.R.Dealer:

• Accessories,sparepartsandcables

4.2 Features

Theseexciterscontaina low-passfilter thatreducestheharmonicemissiontoprovidedforbyinternationalstandards(CCIR,FCCorETSI)andcanbeconnecteddirectlytotheantenna.

TwomajorfeaturesofTEX30/50/100/150/300LCDarecompactdesignanduser-friendliness.Designisbasedonamodularconcept: thedifferentfunctionsareperformedbymodulesthat,forthemostpart,areconnectedthroughmaleandfacilitatesmaintenanceandmodulereplacement.

TheRFpowersectionoftheTEX30LCDfeaturesaMOSFETmoduledeliveringupto30Woutputpower, theTEX50/100/150LCD featuresaMOSFETmoduledeliveringupto150Woutputpower,theTEX300LCDfeaturesaMOSFETmoduledeliveringupto300Woutputpower.

Operatingfrequencystabilityisensuredbyatemperature-compensatedreferenceoscillatorandismaintainedbyaPLL(PhaseLockedLoop)system.Theexciterswillgointofrequencylockwithin30secondsafterpower-on.

The TEX30/50/100/150/300LCDcanoperatethroughoutthefrequencybankwithnoneedforcalibrationorset-up.

4 /32 User ManualRev. 1.0 - 29/11/12


AnLCDonthefrontpanelandapush-buttonboardprovideforuserinterfacingwiththemicroprocessorcontrolsystem,whichoffersthefollowingfeatures:

• Outputpowersetup.

• Operatingfrequencysetup.

• Poweroutputenable/disable.

• PowerGoodfeature(User-selectableoutputpoweralarmthreshold).

• Measurementanddisplayoftransmitteroperatingparameters.

• Communication with external devices such as programming or telemetrysystemsviaRS232serialinterfaceorI2C.

FourLEDsonthefrontpanelprovidethefollowingstatusindications:ON,LOCK,FOLDBACKandRFMUTE.

Theexcitershaveaninputfortheexternal24Vccsupply.Thisauxiliarysupplysource, that can be realized by the user with the help of rescue batteries, isautomaticallyusedincaseofACvoltageabsence.

Theexcitermanagementfirmware isbasedonamenusystem.Userhas fournavigationbuttonsavailabletobrowsesubmenus:ESC, , ,edENTER.

The rear panel features the mains input connectors, as well as audio inputconnectorsandRFoutputconnector,telemetryconnector,protectionfusesandtwoinputsforsignalsmodulatedontosubcarriersbysuitableexternalcoders,suchasRDS(RadioDataSystem)signalscommonlyusedinEurope.


5 / 32User Manual Rev. 1.0 - 29/11/12

4.3 Frontal Panel Description

[1] AIRFLOW Airflowfortheforcedventilation.[2] ON GreenLED,litwhentheexciterisworking.[3] LOCK Greenled,litwhenthePLLislockedontheworkingfrequency.[4] FOLDBACK YellowLED,litwhenthefoldbackfunctionisoperating(automatic

reductionofthedeliveredRFpower).[5] R.F.MUTE YellowLED,litwhentheexciter’spoweroutputisinhibitedbyan

externalinterlockcommand.[6] CONTRAST Displaycontrastadjustingtrimmer(onthetopoftheequipment).[7] ESC Pushbuttontoexitfromamenu.[8] Pushbuttontomoveinthemenusystemandtomodifythe

parameters.[9] Pushbuttontomoveinthemenusystemandtomodifythe

parameters.[10]ENTER Pushbuttontoconfirmaparameterandtoenterinamenu.[11] DISPLAY Liquidcrystalsdisplay.[12]POWER ON/OFFswitch.

� /32 User ManualRev. 1.0 - 29/11/12


4.4 Rear Panel Description

[1] PLUG VDEplugformainssupply.[2] VENTOLA Fanfortheforcedventilationoftheexciter.[3] R.F.OUTPUT RFoutputconnector,N-type,50Ω.[4] 24VDCIN- External24Vdcsupplyinput.Negative(black).Onlyfor

TEX30/50/100/150LCD.[5] 24VDCIN- External24Vdcsupplyinput.Positive(red).OnlyforTEX30/

50/100/150LCD.[6] INTERLOCKOUT ConnettoreBNCdiinterlockinuscita:quandol’eccitatore

entrainmodalitàstand-by,ilconduttorecentrale,normalmenteflottante,vienepostoamassa

[7] FWDEXT.AGC TrimmerforthecontrolofthedeliveredpowerinfunctionoftheFWDfoldinput.

[8] RFLEXT.AGC TrimmerforthecontrolofthedeliveredpowerinfunctionoftheRFLfoldinput.

[9] REMOTE DB15connectorfortelemetryofthemachine.[10]GSMANT ReservedforFutureUses-SMAconnectorforGSM

Antenna.[11]PHASEADJ Pilottonephaseadjustmenttrimmer.[12]MODE/MPXIMP Dip-switchtosettheoperationmode(STEREOorMONO)

andtheMPXinputimpedance,50Ωor10kΩ.[13]SCA/RDS BNCconnector,SCA/RDSunbalancedinput.[14]MPX BNCconnector,MPXunbalancedinput.[15]MPXADJ AdjustmenttrimmerforMPXinput.[16]SCA/RDSADJ AdjustmenttrimmerforSCA/RDSinput.[17]RIGHTADJ AdjustmenttrimmerfortheRightchannelinput.[18]RIGHT XLRconnector,balancedRightchannelinput.[19]FUSEBLOCK Fusecarrier.Useascrewdrivertoaccessthefuse.[20]R.F.TEST RFtestoutput,approx.13dBmwrttheRFoutputpower

level.Notsuitableforspectralanalysis.[21]MODEM DB9connectorconnectedtoGSMmodem(onlywith

telemetryoption).[22]I2CBUS Normallynotused,orusedforcustomizedfunctions(only

withtelemetryoption).[23]RS232 DB9connectorfordirectserialcommunicationormodem

(onlywithtelemetryoption).[24]SERVICE DB9connectorforinterconnectionwithotherdevices

andforfactoryparametersprogramming(onlyforfactoryprogramming).

[25]EXTREF10MHz Fineregulationtrimmerforfrequencytransmission.Optionally,SyncsignalinputBNCconnectorforexternaldevices.

[26]PREEMPHASIS Dip-switchtosetthepreenphasysat50or75μs.ThepreenphasyssettingisrelevantonlyfortheLeftandRightinputsinstereomodeandforthemonoinputinmonomode,


7 / 32User Manual Rev. 1.0 - 29/11/12

whileMPXinputisunaffectedbythissetting.[27]19kHzPILOTOUT BNCoutputforthe19kHzpilottone.Thiscanbeusedfor

externaldevices(e.g.RDScoders)synchronization.[28]SCA2 BNCconnector,SCA2unbalancedinput.[29]SCA2ADJ AdjustmenttrimmerforSCA2input.[30]LEFT-MONOADJ AdjustmenttrimmerforLeft-Monochannelinput.[31]LEFT-MONO XLRconnector,balancedLeft-Monochannelinput.[32]IMPEDANCE Dip-switchtosetthebalancedinputimpedance,600Ωor

10kΩ.

4.5 Connectors Description

4.5.1 RS232Type:FemaleDB9

1 NC2 SDA3 SCL4 NC5 GND6 NC7 NC8 NC9 NC

4.5.2 Service(for programming of factory parameters)Type:FemaleDB9

1 NC2 TX_D3 RX_D4 Internallyconnectedwith65 GND6 Internallyconnectedwith47 Internallyconnectedwith88 Internallyconnectedwith79 NC

4.5.3 I2CBusType:MaleDB9

1 NC2 TX_D3 RX_D4 Internallyconnectedwith65 GND6 Internallyconnectedwith47 Internallyconnectedwith88 Internallyconnectedwith79 NC

� /32 User ManualRev. 1.0 - 29/11/12


4.5.4 Left(MONO)/RightType:FemaleXLR

1 GND2 Positive3 Negative

4.5.5 RemoteType:FemaleDB15

Pin Name Type Meaning 1 Interlock IN BypassespowerifclosedatGND2 ExtAGCFWD IN Ext.signal,1-12V,forpower

limitation(AGC)3 GND Ground4 SDAIIC I/O IICcommunicationserialdata5 VPATlm ANLOUT PApowersupplyvoltage3,9VF.S.6 FWDTlm ANLOUT Forwardpower3,9VF.S.7 PowerGood DIGOUT Opencollector,enabledwhenpower exceedsthesetthreshold8 GND Ground9 GND Ground10 ExtAGCRFL IN Ext.signal.,1-12V,forpower

limitation(AGC)11 SCLIIC I/O IICcommunicationclock12 IPATlm ANLOUT PApowersupplycurrent3,9VF.S.13 RFLTlm ANLOUT Reflectedpower3,9VF.S.14 Oncmd DIGIN Onegroundedpulse(500ms) enablespowersupply15 OFFcmd DIGIN Onegroundedpulse(500ms) disablespowersupply


� / 32User Manual Rev. 1.0 - 29/11/12

4.6 TechnicalDescription

Parameters TEX30LCD TEX50LCD TEX100LCD TEX150LCD TEX300LCDGENERALS

Rated output power 30W 50W 100W 150W 300WFrequency rangeOperational ModeModulation typePrimary Power 80 ÷ 260 Vac or 24 Vdc 80 ÷ 260 Vac

AC Power Consumption 130 VA / 70W 200 VA /100W 330 VA / 212 W 440 VA / 260 W 560 VA / 520 WPhisical Dimensions (W x H x D)

Weight 7 kg 8,5 kg 8,5 kg 8,5 kg 9,5 kgEnvironmental Working Conditions

CoolingFrequency programmability

Frequency stabilityPre-emphasis mode

Spurious & harmonic suppressionAsynchronous AM S/N ratio ≥ 65 dB (typical 70) ≥ 60 dB (typical 65)Synchronous AM S/N ratio ≥ 50 dB (typical 60) ≥ 50 dB (typical 55)

MONO OPERATIONS/N FM Ratio

Frequency ResponseTotal Harmonic DistortionIntermodulation distortion

MPX OPERATIONComposite S/N FM Ratio

Frequency ResponseTotal Harmonic DistortionIntermodulation distortion

INTERNAL STEREO CODER OPERATION

Stereo S/N FM RatioFrequency Response

Total Harmonic DistortionIntermodulation distortion

Stereo separationAUDIO INPUT CONNECTORS

Left / RightMPX unbalanced/RDS

SCA/RDS OTHER CONNECTORS

RF OutputRF MonitorPilot output

Interlock InputSTANDARD COMPLIANCE

Safety

EMC

Radio

FCC -CCIR - OIRT - JPN

0/50 (CCIR) μS, 75 (FCC) μS<75 dBc (80 typical)

Mono, Stereo, MultiplexF3E

483 x 88 x 394 mm

115 / 230 ±15% or 28 Vdc

≥ 60 dB (typical 68)

EN 301 489-1 V1.4.1 (2002-08) EN 301 489-11 V1.2.1 (2002-11)EN 302 018-2 V1.2.1 (2005-06)

-10 ÷ +50 °C / 95% relative Humidity non condensingForced, with internal fan

From software, with 10 kHz steps±1 ppm

EN 60215:1989EN60215/A1:1992-07 EN60215/A2:1994-09

≥ 50 dB (typical 58)

> 80 dB RMS (typical 85 dB)< ± 0.5 dB 30Hz ÷ 15kHz (typical ± 0.2 dB)< 0.1 % 30 Hz ÷ 15 kHz (typical 0.07 %)

< 0.02 % with 1 kHz and 1,3 kHz tones

> 80 dB RMS (typical 85 dB)± 0.2 dB 30Hz ÷ 53kHz / ± 0.5 dB 53kHz ÷ 100 kHz

BNC unbalanced; Impedance: 10 k or 50 ohm; Level: -13 to +13 dBu2 x BNC unbalanced; Impedance: 10 k; Level: -8 to +13 dBu

N (50 ohm)

< 0.1% 30Hz ÷ 53kHz< 0.05% with 1 kHz and 1,3 kHz tones

> 75 dB RMS (typical 78dB)± 0.5 dB 30 Hz ÷ 15 kHz< 0.05% 30 Hz ÷ 15 kHz

≤ 0.03% with 1 kHz and 1,3 kHz tones

BNC (- 30dBr referred to RF output )BNC (1Vpp)

BNC

> 50 dB 30 Hz ÷ 15 kHz (typical 55 dB)

XLR balanced; Impedance: 10 k or 600 ohm; Level: -13 to +13 dBu

10 /32 User ManualRev. 1.0 - 29/11/12


5. Quick guide for installation and useThis section provides a step-by-step description of equipment installation andconfigurationprocedure.Follow theseprocedures closely upon first power-onandeachtimeanychangeismadetogeneralconfiguration,suchaswhenanewtransmissionstationisaddedortheequipmentisreplaced.

Oncethedesiredconfigurationhasbeensetup,nomoresettingsarerequiredfor normal operation; at each power-up (even after an accidental shutdown),the equipment defaults to the parameters set during the initial configurationprocedure.

The topics covered in this sectionarediscussedat greater length in thenextsections,withdetaileddescriptionsofall hardwareandfirmware featuresandcapabilities.Pleaseseetherelevantsectionsforadditionaldetails.

IMPORTANT:When configuring and testing the transmitter in which the equipment is integrated, be sure to have the Final Test Table supplied with the equipment ready at hand throughout the whole procedure; the Final Test Table lists all operating parameters as set and tested at the factory.

5.1 Prepation

5.1.1 Preliminarychecks

Unpacktheexciterandimmediatelyinspectitfortransportdamage.Ensurethatallconnectorsareinperfectcondition.

Themainfusecanbeaccessedfromtheoutsideontherearpanel.Extractthefusecarrierwithascrewdrivertocheckitsintegrityorforreplacement,ifnecessary.Thefusetobeusedisthistype:

Fusibile principale

TEX30LCD @ 90÷260 Vac (1x) 3.15A tipo 5x20

TEX50/100/150LCD @ 230 Vac/115 Vac (1x) 6.3A tipo 5x20

TEX300LCD @ 230 Vac/115 Vac (1x) 8A tipo 5x20

Table 5.1: Fuses

Provideforthefollowing(applicabletooperatingtestsandputtingintoservice):

√ Single-phase230VACor115VAC(-15% /+10%)mainspowersupply forTEX50/100/150LCD,or80÷260VACfull-rangemainspowersupplyforTEX30/300LCD,withadequateearthconnection.


11 / 32User Manual Rev. 1.0 - 29/11/12

√ Foroperatingtestsonly:dummyloadwith50Ohmimpedanceandadequatecapacity(30WforTEX30LCD,50WforTEX50LCD,100WforTEX100LCD,150WforTEX150LCD or 300WforTEX300LCD asaminimum).

√ Connectioncablekitincluding:

• Mainspowercable

• CoaxialcablewithBNCconnectorsforinterlocksignalconnection

• RF cable for output to load / antenna (50 Ohm coaxial cable with N-typeconnector)

• Audiocablesbetweentransmitterandaudiosources.

5.1.2 Connections

ConnecttheRFoutputofthetransmittertotheantennacableoradummyloadcapableofdissipatingamplifieroutputpower.Tobeginwith,setexcitertominimumoutputpowerandswitchitoff.

ConnectthetransmitterINTERLOCKINinputtothematchingINTERLOCKOUToutputfittedonR.V.R.Elettronicaequipment toactashybridcouplers. Ifyourequipmentisadifferentbrand,identifyanequivalentoutput.

Figure 5.2: connections with amplifier

WARNING:Electricshockhazard!NeverhandletheRFoutputconnectorwhentheequipmentispoweredonandnoloadisconnected.Injuryordeathmay result.

EnsurethatthePOWERswitchonthefrontpanelofTEX30/50/100/150/300LCDissetto“OFF”.

12 /32 User ManualRev. 1.0 - 29/11/12


Theexciterhastwoswitches:oneisembeddedinVDEsocketformainspowercordandinterruptsallmainspowersupplyofthemachine,whilethesecondisonthefrontpanelandactsbyinhibitingtheswitchingpowersupplyofthemachine.

ConnectthemainspowercabletotheMAINSconnectorontherearpanel.

Note: the mains must be equipped with adequate earth connection properly connected to the equipment. This is a pre-requisite for ensuring operator safety and correct operation.

ConnecttheaudioandRDS/SCAsignalsfromuser’ssourcestothetransmitterinputconnectors.

5.2 Firstpower-onandsetup

Seguireleistruzioniriportatediseguitonelcasodiprimaaccensioneodopoavereffettuatouncambiamentoallaconfigurazionedell’eccitatorenelqualequestocomponenteèintegrato.

Note:Standard factory settings are RF output power off (Pwr OFF) and regulated output power set to upper limit (unless otherwise specified by customer).

5.2.1 Power-on

When you have performed all of the connections described in the previousparagraph, power on the exciter using the suitable power switch on the frontpanel.

5.2.2 Powercheck

EnsurethattheONLEDturnson.Equipmentnameshouldappearbrieflyonthedisplay,followedbyforwardpowerandmodulationreadings.IftheRFoutputisdisabled,thosereadingswillbezero.

WhenthePLLlockstooperatingfrequency,theLOCKLEDwillturnon.

5.2.3 HowtoenabletheRFoutput

Checkoutputpowerlevelandsetittomaximumlevel(unlessithasalreadybeenset) from thePowerSetupmenu thatyouwillhaveaccessedbypressing thefollowingsequenceofkey:ESC(opensDefaultMenu)⇒ENTER(holddownfor2seconds)⇒SET⇒usekeystosetbartoupperlimit(figure5.2-menu2).

CheckthestateofthePwroutputpowerbytheFncmenu.IfitissettoOFF,pressENTERtobringtheselectiontoON.


13 / 32User Manual Rev. 1.0 - 29/11/12

5.2.4 Controllodellivellodipotenzadiuscita

Note:The exciter incorporates Automatic Gain Control (AGC) and output power is modulated based on the power level set by the user and actual operating conditions, such as temperature, reflected power and other parameters. Please read section 5.3 for more details of RF power modulation.

AccessthePowerSetupMenupressingthefollowingkeysintheorder:

ESC(opensDefaultMenu)⇒ENTER (holddownfor2seconds)

Usethekeys and intheSETmenutosetexciteroutputpower;thesettingbaratthesideofSETprovidesagraphicindicationofpowersetting;pleaseconsiderthattheforwardpowerreadoutprovidedonthedisplay(FWD:xxxxW)reflectsactualoutputpowerreading,whichmaybelowerthanregulatedpowersupplywhenAutomaticGainControlisrunninginpowersupplylimitationmode(pleasereadsection5.3aboutRFpowersupplymodulationformoredetails).

Note: Output power may be set using the PwrOFF control. In this condition, the output power readout (Fwd) on the display will read 0 (zero); the SET bar will reflect any adjustments you make using the keys and provides a graphic indication of how much power supply will be delivered the moment you return to PwrOn state.

5.2.5 ChangingthePower Goodalarmthreshold

ChangeForwardPowerGoodalarmsettingPgDfromtheFncmenuasdesired(factorysettingis50%).

5.2.6 SettingequipmentI2Caddress

Change the IIC address in theMIX (Miscellaneous) menu as desired (factorysettingis01).

5.2.7 Adjustmentsandcalibration

The only manual adjustments are the level adjustments and the audio modeadjustment.

Therearpanelholdsthetrimmersforallexciterinputs.Trimmeridentificationisprintedontherearpanel.Inputsensitivitycanbesetwithinthelimitssetoutinthetablesbelowthroughthetrimmers:

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Inputsensitivity:

Input Figure6.2 Trimmer Sensitivity NotesSCA1/RDS [13] [16] -8÷+13dBu

SCA2 [28] [29] -8÷+13dBu

Inputlevelfor7,5kHzoveralldeviation(-20dB)

MPX [14] [15] -13÷+13dBuLeft/Mono [31] [30] -13÷+13dBu

Right [18] [17] -13÷+13dBu

Inputlevelfor75kHzoveralldeviation(0dB)

When setting input sensitivity, please consider that the default menu reportsinstantaneousmodulationlevelandanindicatorprovidesa75kHzreading.Toensurecorrectadjustment,applyasignalwith thesame levelasuser’saudiobroadcastmaximumlevelandthenadjustusingthetrimmeruntilinstantaneousdeviationmatchesthe75kHzreading.

Tosetsubcarrierinputlevels,youmayusethesameprocedureandoption“x10”availableintheFncmenu.Withthisoption,modulationlevelismultipliedbyafactorof10,whichmeansthatdefaultmenubarmeterreflectsa7.5kHzdeviation.

Aspecialmenuwithseparate indicationsofLeftandRightchannel levelsandrelatingindicatorsofnominallevelsformaximumdeviation(75kHz)isprovided.

• Preemphasis:

ON

1 2 3 4 50ms

ON

1 2 3 4 75ms

• LandR(XLRtype)inputimpedance:

Switch1:RXLRinputimpedance,ON=600W,OFF=10kW

Switch2:LXLRinputimpedance,ON=600W,OFF=10kW

• MPXinputoperationmode/impedance:

Switch1:ModeofoperationON=Mono,OFF=Stereo

Switch2:MPXinputimpedance,ON=50W,OFF=10kW

5.3 Operation NOTE:Forbetterclarity,onlythetypicalscreensofTEX300LCDarereported

below.TEX30/50/100/150LCDscreens lookthesameexcept that fullscalevaluesaredifferent.

1) PowerontheexciterandensurethattheONlightturnson.Equipmentnameshould appear briefly on the display, quickly followed bymodulation andforwardpowerreadings(Menu1),providedthattheexciterisdeliveringoutputpower.

ON1

2

ON1

2


15 / 32User Manual Rev. 1.0 - 29/11/12

Menu 1

1b)Tomodifypowerlevelsetting,holddowntheENTERbuttonuntilopeningthepowersetupmenu.

Theeditscreenwilllooklikethis:

Menu 2

NexttoSETindication,abarprovidesagraphicdisplayofpresetoutputpower.Thefilledportionofthebarisproportionaltosetpowerlevel.Example

100% potenza di uscita Barra piena

≅ 300W in uscita (mod.TEX300LCD)





25% potenza di uscita 1/4 della barra



≅ 37,5W in uscita (mod.TEX150LCD)




Thebottomlineprovidesinstantaneouspowerreading(300WforTEX300LCD shownhere),pressbutton toincreaselevel,press todecreaseit.Whenyouhaveachievedthedesiredlevel,pressENTERtoconfirmandexitthedefault menu.Pleasenotethatthesettingisstoredautomatically;inotherwords,ifyoupressESCordonotpressanykeysbeforethepresettimetimesout,thelatestpowerlevelsetwillberetained.

1� /32 User ManualRev. 1.0 - 29/11/12


NOTE:Thisfeaturepreventstheequipmentfromdeliveringmaximumpowerassoonasoutputisenabledfrommenu4,orintheeventtheequipmentisalreadysettoONwhenyouenergiseit.

2) Ensurethattheequipmentisnotinalocked-outstate.PressESCtocalluptheselectionscreen(menu3).HighlightFncandpressENTERtoconfirmandaccesstheselectedmenu(menu4).

IfPWRissettoOFF,i.e.poweroutputisdisabled,movecursortoPWR.PressENTERandlabelwillswitchtoON,i.e.poweroutputisenabled.

PressESC twicetogobacktothedefaultmenu(menu1).

3) Finetunepowersettingfrommenu2(seedescriptionofitem1b)untilachievingthedesiredvalue.

WARNING:Equipmentiscapableofdeliveringmorethanratedoutputpower(30/50/100/150/300WforTEX30/50/100/150/300LCD respectively);however,neverexceedthespecifiedpowerrating.

NOTE:Ifpowerissetto0WinthePowerSetupMenu,theINTERLOCKOUTcontactisactivatedandanyexternalappliancesconnectedtoitareimmediatelyinhibited.

Next, you can review all operating parameters of the equipment through themanagementfirmware.

Normally, the equipment can run unattended.Any alarm condition is handledautomaticallybythesafetysystemorissignalledbytheLEDindicatorsonthepanelorbydisplaymessages.

NOTE: Standard factory settings are output power set to upper limit (unlessotherwisespecifiedbycustomer)andOFF.

5.4 ManagementFirmware

TheequipmentfeaturesanLCDwithtwolinesby16charactersthatdisplaysasetofmenus.Thefigurebelowprovidesanoverviewofequipmentmenus.

Thesymbolslistedbelowappearintheleftportionofthedisplayasappropriate:

(Cursor)-Highlightsselected(i.e.accessible)menu.

(Filledarrow)-Editableparametermarker.Thissymbolappearsinmenusthattakeupmorethantwolinestoaidbrowsing.

(Threeemptyarrows)-Parameterisbeingedited.

(Empty arrow) - Current line marker; the parameter in this line cannot beedited.Thissymbolappearsinmenusthattakeupmorethantwolinestoaidbrowsing.


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Menu1

OperationMenu

PowerMenu

PowerAmplifierMenu

SettingsMenu

VersionsMenu

MiscellaneousMenu

Menu3

Menu2

Menu4

Menu5

Menu6

Menu7

Menu8

Menu9

SelectionMenu

PowerAdjustmentMenuPredefinedmenu

Menu10

ChannelsMenu

Figure 5.2

Whenthedisplayisoff,touchinganykeywillturnonbacklighting.

Whenthedisplayison,pressingtheESCbuttonfromthedefault menu(menu1)callsuptheselection screen(menu3),whichgivesaccesstoallothermenus:

Menù 3

If the temperaturealarm isenabledand thealarm threshold isexceeded, thefollowingscreenwillbedisplayed(onlyifyouareinthedefaultscreen):

State 1

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Assoonasoperatingconditionsarerestored,poweroutputisre-enabledwiththesamesettingsinusepriortothealarmcondition.

Under20kHz,nomodulationoccurs.Afterapresettimeofabout5minutes(noteditable),aNOAUDIOconditionisindicatedinthemainscreen,butpowerisnotinhibited.

State 2

Togainaccesstoasubmenu,selectmenuname(nameishighlightedbycursor)usingbuttonorandpresstheENTERbutton.

Toreturntothedefault menu(menu1),simplypressESCagain.

5.4.1 OperationMenu(Fnc)

Inthismenu,youcantoggleexciterpoweroutputOn/Off,setdeviation display mode and the threshold rate forForward (PgD) orReflected (PgR)PowerGood.

To edit an item, highlight the appropriate line using the and buttonsand then press and hold the ENTER button until the command is accepted.Thisway,PwrsettingistoggledbetweenOnandOffandModsettingistoggledbetween“x1”and“x10”.ToeditthePowerGoodrate,simplyselectitem“PgD”or“PgR”andedititsvalueusingtheUPandDOWNbuttons;finally,pressENTERtoconfirm.

Menu 4

Pwr Enables(ON)ordisables(OFF)exciterpoweroutput.


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Mod Modifiesmodulationdisplay(togglesbetween“x1”and“x10”).In“x10”mode,instantaneousdeviationindicationismultipliedbyafactorof10,andthebarmeteronthedefaultmenuwillreflect7.5kHzinsteadof75kHz.Thisdisplaymodeisconvenientwhenyouwishtodisplaylowdeviationlevels,suchasthosecausedbypilottoneorsubcarriers.

PgD ModifiesPowerGoodthresholdforforwardpower.ThePowerGoodrateisapercentofequipmentratedpower(30/50/100/150/300WforTEX30/50/100/150/300LCDrespectevely),notofforwardoutputpower.Thismeansthatthisthresholdsetat50%willgive15/25/50/75/150W,respectively,regardlessofsetpowerlevel.ThePowerGoodfeatureenablesoutputpowercontrolandreporting.WhenoutputpowerdropsbelowsetPowerGoodthreshold,theequipmentchangesthestateofpin[7]oftheDB15“Remote”connectorlocatedontherearpanel.

PgR ModifiesPowerGoodthresholdforreflectedpower.ThePowerGoodrateisapercentofequipmentratedpower(3/5/10/15/30WforTEX30/50/100/150/300LCDrespectevely),notofreflectedoutputpower.Thismeansthatthisthresholdsetat5%willgive0,15/0,25/0,50/0,75/1,5W,respectively,regardlessofsetpowerlevel.ThePowerGoodfeatureenablesoutputpowercontrolandalarmmanagement.

NOTE:ThisalarmdoesnottripanycontactsintheDB15“Remote”connectorandisonlyavailableinsystemsequippedwithtelemetry.

5.4.2 Powermenu(Pwr)

Thisscreenholdsallreadingsrelatedtoequipmentoutputpower:

Menu 5

Fwd Forwardpowerreading.

Rfl Reflectedpowerreading.

Note that thesearereadings, rather thansettings,andcannotbeedited(notetheemptytriangle).Tochangepowersetting,gotothedefault menuasoutlinedearlier.

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5.4.3 PowerAmplifier(P.A)Menu

Thisscreenismadeupof four linesthatcanbescrolledusingthe and buttonsandshowsthereadingsrelatingtofinalpowerstage:

Menu 6

Notethatthesearereadings,ratherthansettings,andcannotbeedited(notetheemptyarrow).

VPA Voltagesuppliedbyamplifiermodule.

IPA Currentdrawofamplifiermodule.

Eff Efficiencybasedonratioofforwardpowertoamplifiermodulepower,inpercent(FWDPWR/(VpaxIpa)%).

Tmp Equipmentinternaltemperaturereading.

5.4.4 SetupMenu(Set)

Thismenuletsyouviewandsetoperatingfrequency.

Menu 7

F1 Operatingfrequencysetup.SetanewfrequencyvalueandthenpresstheENTERbuttontoconfirmyourselection;theexciterunlocksfromcurrentfrequency(theLOCKLEDturnsoff)andwilllocktothenewoperatingfrequency(LOCKturnsbackonagain). IfyoupressESCorletthepresettimetimeout,thepreviousfrequencysettingisretained.


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5.4.5 MiscellaneousMenu(Mix)

ThismenuletsyousetequipmentaddressinanI2Cbusserialconnection:

Menu 8

IIC I2Caddresssetting.TheI2CnetworkaddressbecomessignificantwhentheexciterisconnectedinanRVRtransmissionsystemthatusesthisprotocol.Donotchangeitunlessstrictlyrequired.

5.4.6 VersionMenu(Vrs)

Thisscreenholdsequipmentversion/releaseinformation:

Menu 9

Notethatthesearereadings,ratherthansettings,andcannotbeedited(notetheemptyarrow).

Rel Firmwarereleaseinformation.

Dat Releasedate.

Tab Showstableloadedinthememory.

5.4.7 ChannelsMenu(L&R)

Rightandleftchannelinputlevelsaredisplayedashorizontalbarsasshowninthefigurebelow.

Thebarmeterreflectsthelevelcorrespondingtoa100%deviationforeachchannelandprovidesaconvenientreferencewhensettingaudiochannelinputlevels.

Menù 10

L LeftchannelVmeter.

R RightchannelVmeter..

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5.5 OptionalFunction

Arangeofoptionsisavailablefortheproducttoaddcertainfunctionsand/ormodifyexistingfunctions.Outlinedbelowarethefunctionsavailableatthemoment,whichmustbespecifiedonorder.

5.5.1 FSKOption

The FSK function generates periodic carrier frequency shifts to generate aMorsecodedstationIDcode.

NOTE:ThisfunctionistypicallyusedintheUSA.

Thefactorysettingforfrequencyshiftis+10KHzandcoderepetitionperiodis60minutes(pleasecontactR.V.R.Elettronicaifyouneeddifferentsettings),whereasstationidentifiedmaybeprogrammedbytheuserfollowingtheindicationsprovidedinsectionbelow.

When the FSK option is fitted, an FSK submenu is added to theselection menu.

Menu 11

PresstheENTERkeywhenFSKishighlightedintheselection menutoaccesstheFSKsubmenu:

Menu 12

FSK Enables/disablesFSKcodetransmission.

Cod ShowstheMorsecodesentnormally.

5.5.1.1 ChangingtheIDcode

UsermaychangetheFSKcodeusedasastationidentifieratanytime.

Thisprocedurerequires:

• 1RS232male-femalecable;

• Hyper Terminal interface (make sure it has been installed together withWindows®)orequivalentserialcommunicationsoftware.


23 / 32User Manual Rev. 1.0 - 29/11/12

Abriefdescriptionoftheprocedureisprovidedbelow:

• ConnectthePCserialportCOMtotheSERVICEconnectorontherearpanelofTEX30/50/100/150/300LCDusingastandardMaleDB9-FemaleDB9serialcable.

• Powerontheexciter;

• Launchtheserialcommunicationsoftware;

• Setcommunicationparametersasfollows:

BaudRate:19200

DataBit:8 Parity:None

StopBit:1 Flowcontrol:None;

• ActivateCaps-LockthroughthecommunicationsoftwareandsendstringCODEfollowedbythe6-characterstationIDcodefollowedbyEnter.

NOTE:To be treated as valid, the code must be made up of 6 alphanumericcharactersandmustcontainnoblankspaces;ifacknowledgedasvalid,codeisechoedbacktotheterminal,illegalcodesarenotechoed.

5.5.2 PowerUP/DOWNOption

ThePowerUP/DOWNoptionmodifiesthesignalreceivefunctionforthesignalspresentatthetelemetryconnector.

RFsectionon /offcontrolsignalsare treatedascontrolsignals forRFoutputpowerleveltoallowforUP/DOWNsetting.

TheUPorDOWNcommandisprovidedbyswitchingthecorrespondingsignalattheconnectortogroundforatleast500mS(pinfeaturesinternalpull-uptopowersupply).

ConfigurationofDB15Ftelemetryconnector(Remote):

Pin StandardFunction UP/DOWNPowerFunction14 Oncmd Upcmd

Enables the RF power supply Increases the RF power supply

15 Offcmd Downcmd

Disables the RF power supply Reduces the RF power supply

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6. IdentificationandAccesstotheModules

6.1 IdentificationoftheModules

TheTEX30/50/100/150/300LCD ismadeupofvariousmoduleslinkedtoeachotherthroughconnectorssoastomakemaintenanceandanyrequiredmodulereplacementeasier.

6.1.1 TEX30LCDUpperview

Thefigurebelowshowstheequipmentupperviewwiththevariouscomponentspointedout.

figure 8.1

[1] MainBoard&StereoCoderCard[2] PanelCard[3] TelemetryCard[4] ControlCard&PowerAmplifier[5] PowerSupply


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6.1.2 TEX50/100/150LCDUpperview


figure 8.2


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6.1.3 TEX300LCDUpperview


figure 8.3



27 / 32User Manual Rev. 1.0 - 29/11/12

7. Working Principles

7.1 TEX30/50/100/150/300LCD Common Parts

7.1.1 Panelboard

Thepanelboardcontainsthemicrocontroller(PIC18F452)thatimplementstheequipment control software, the display and the other components needed tointerfacewiththeuser.

Theboardisconnectedwiththeothermachinemodules,bothforpowersupplydistributionandforthecontrolandmeasures.

7.1.2 Mainboard

Themainboardcarriesoutthefollowingfunctions:

• AudioandSCAinputtreatment

• Generationofcarrierfrequency

• Modulation

• R.F.amplification(Driver)

Theboardalsofeaturesastereophoniccoder.

7.1.2.1 Audioinputsection

Theaudioinputsectioncontainsthecircuitsthatperformthefollowingfunctions:

• Inputimpedanceselection

• 15kHzfilteringoftheleftandrightchannel

• StereophonicCoding

• Monochannelpreemphasis

• Mono,MPXandSCAchannelmixing

• Clipper(limitsthemodulatingsignallevelsothatthefrequencydeviationdoesnotexceed75kHz)

• Modulatingsignalmeasurement

7.1.2.2 PLL/VCOsection

Thisboardsectiongeneratesthemodulatedradiofrequencysignal.ItisbasedonaPLLschemethatusesanintegratedMB15E06type.

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7.1.2.3 Driversection

Beforepassingtothefinalpoweramplifier,theRFsignalispreamplifiedinthissectionbyanERA3transistor.Whentheexciterisplacedonstand-by,thedriverisby-passed.

7.1.3 Telemetryboard

Thisboardisdesignedtoinformtheuseroftheequipmentoperationstate.AllinputandoutputsignalsareavailableontheDB15connector.

Thesameboardalsofeaturesthe“INTERLOCK”BNCconnectorfordisablingthedevice.Bygroundingthecentralpin,theoutputpowerisreducedtozerountiltheconnectionisremoved.

WhenanR.V.R.amplifierisused,thisconnectorislinkedtothepoweramplifierREMOTEorINTERLOCKbymeansofaBNC-BNCconnection.Incaseofamplifierfaults, the central conductor is grounded thus forcing the machine to enter instand-bymode.

7.2 TEX30LCD Different Parts

7.2.1 PowerSupply

TheTEX30LCDpowersupplyunitisaswitching-typeunitwhose+28VmainoutputpowersthemachineÌsRFamplifier.Thepowersupplyalsofeaturesstabilizersforgeneratingcontinuous+5Vand+18Vvoltagesforsupplyingtheotherequipmentcircuits.Notethatthepowersupplyisa“directfrommains”type,orratherit iswithoutatransformer,anditcanbeconnectedtoanyvoltagebetween80and260Vwithoutanyadjustmentsormanualsettings.Thepowersupplyunitisalsoconnectedto24Vauxiliarycontinuousvoltageinputsusedtoautomaticallybufferthemainspowercutoff.

7.2.2 PowerAmplifier

Thefinalpowerstageisenclosedinatotallyshieldedmetalcontainerfastenedinthecentreofthedevice.

TheRFsignalcomingfromthe“main”cardreachesthepilot,isamplifiedandisthensenttothefinalstagethatseestoitsfinalamplificationsupto30W.

Theamplifier ismade in threestages.Thefirst ismadewithoneBFG35, thesecondwiththreeBFG35inparallel,andthelastwithoneBLF245.

In addition to theactualRFamplification, this circuit carries out the followingfunctions:


2� / 32User Manual Rev. 1.0 - 29/11/12

• Controlofthepowerlevelinoutput,dependingonthesetting

• Reductionof thepower suppliedwhen in presenceof high-level reflectedpower

• Measures of the forward and reflected power by means of directionalcouplers

• Measuresofthecurrentabsorbedbythepoweramplifier

• Measuresofthetemperature

• Low-passfilteringoftheRFsignalinoutput

ThisboardalsofeaturesanRFsamplingofapproximately-30dBRFwithrespecttotheoutput,whichisavailableonaBNCconnectorbelowthetransmitteroutputconnector.Thissampleisisusefulforverifyingthecharacteristicsofthecarrier,butnotforverifyingthoseoftheupperharmonics.

7.2.3 ControlBoard

ThemainfunctionofthisboardistocheckandcorrecttheMOSFETpolarizationvoltageoftheRFamplifiersection.

Italsoprovidesthemeasurementoftheabsorbedcurrentandcontainsacircuitforsignalingpowersupplyunitfaults.

Ifnoalarmsarepresent,thevoltageisadjustedonlydependingonthesetoutputpower, with a feedback mechanism based on the reading of the power reallydelivered(AGC).

Thevoltageisalsoaffectedbyotherfactors,suchas:

• Excessofreflectedpower.

• ExternalAGCsignals(Ext.AGCFWD,Ext.AGCRFL).

• Excessoftemperature.

• ExcessofabsorbedcurrentfromtheRFmodule.

7.3 TEX50/100/150LCD Different Parts

7.3.1 PowerSupply

TheTEX50/100/150LCDpowersupplyunitisaswitching-typeunitwhose+28VmainoutputpowersthemachineÌsRFamplifier.Thepowersupplyalsofeaturesstabilizersforgeneratingcontinuous+5V,-15V,+8V,+18Vand-18Vvoltagesforpoweringtheotherdevicecircuits.Thepowersupplyunitisalsoconnectedto24Vauxiliarycontinuousvoltageinputsusedtoautomaticallybufferthemainspowercutoff.

30 /32 User ManualRev. 1.0 - 29/11/12





Theamplifierismadeintwostages.ThefirstismadewithBLF244andthelastwithBLF147.








OnthiscardisanRFsampleapproximately-30dBcomparedwiththeoutputthatisavailableonaBNCconnectorunderneaththeoutputconnectorofthetransmitter.Thissampleisusefulforcheckingthecharacteristicsofthecarrier,butnotofthehigherorderharmonics.

7.3.3 ControlBoard



Ifnoalarmsarepresent,thevoltageisadjustedonlydependingonthesetoutputpower, with a feedback mechanism based on the reading of the power reallydelivered(AGC).







31 / 32User Manual Rev. 1.0 - 29/11/12

7.4 TEX300LCD Different Parts

7.4.1 PowerSupply

TheTEX300LCDpowersupplyunitisaswitching-typeunitwhose+50Vmainstabilizersforgeneratingcontinuous+5V,+18Vand-18Vvoltagesforsupplyingtheotherequipmentcircuits.Notethatthepowersupplyisa“directfrommains”type,orratheritiswithoutatransformer,anditcanbeconnectedtoanyvoltagebetween90and260Vwithoutanyadjustmentsormanualsettings.




Theamplifierismadeinthreestages.ThefirstismadewithBFG35,thesecondwithoneBLF175andthelastwithoneSD2942.








ThisboardalsofeaturesanRFsamplingofapproximately-60dBRFwithrespecttotheoutput,whichisavailableonaBNCconnectorbelowthetransmitteroutputconnector.Thissampleisisusefulforverifyingthecharacteristicsofthecarrier,butnotforverifyingthoseoftheupperharmonics.

7.4.3 ControlBoard



Ifnoalarmsarepresent,thevoltageisadjustedonlydependingonthesetoutput

32 /32 User ManualRev. 1.0 - 29/11/12


power, with a feedback mechanism based on the reading of the power reallydelivered(AGC).






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R.V.R Elettronica S.p.A.Via del Fonditore, 2 / 2cZona Industriale Roveri · 40138 Bologna · ItalyPhone: +39 051 6010506 · Fax: +39 051 6011104e-mail: [email protected] ·web: http://www.rvr.it

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