copyright © 2017 by btech;

Copyright © 2017 by BTECH; https://baofengtech.com

All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the publisher, except in the case of brief quotations embodied in critical reviews and certain other noncommercial uses permitted by copyright law. For permission requests, write to the publisher.

Contributions taken from: Miklor.com Resource Site, and Jim Unroe, KC9HI. Used by permission. All rights reserved.

THANK YOU FOR YOUR PURCHASE OF THE BTECH: UV-25X2, UV-25X4, or UV-50X2. THIS MULTI-BAND RADIO WILL DELIVER

INSTANT RELIABLE COMMUNICATION.

PLEASE READ THIS MANUAL CAREFULLY BEFORE USE

i

TableofContents

PartI.Gettingstarted 1

Chapter1.–GettingStarted 2UnpackingandInspecting 3UV-25X2:OverviewoftheFrontPanel 4UV-25X4:OverviewoftheFrontPanel 6UV-50X2:OverviewoftheFrontPanel 8UV-25X2&UV-25X4:OverviewoftheRearPorts 10UV-50X2:OverviewoftheRearPorts 12HandHeldMicKeysandDescription 14ColorDisplayandIconDescriptions 15AntennaBasics 17

GroundingPlane: 17AntennaRequirements 18

Chapter2.–BasicShortcutsandUse 19Pound# Key 19Star*Key 19

ii

UV-25X2/UV-25X4/UV-50X2

Turningtheuniton 20Turningtheunitoff 20Adjustingthevolume 20

Makingacall 21Channel selection 21

Frequency(VFO)mode 21Channel(MR)mode 22

MonitorBothVFO&MRModes 23

Chapter3.–MenuQuickReview 24QuickMenuSettings 24

Chapter4.–Programming 32FrequencyModevs.ChannelMode 32Ex:ProgrammingaChannelRepeaterOffsetwithCTCSSTone 33Ex.ProgrammingaSimplexChannelwithCTCSStone 34

Chapter5.–OtherSettings 35TogglefromHightoLowPower 35StoringanFMRadioStationandScanning 35KeypadLock-out 35PTTIDSetting 35

iii

DTMFRXSettings 36DTMFTXSettings 36RemoteStun 37RemoteKill 38RemoteRevive 38ReadMoreAboutRemoteCommands 39DTMFReceiveSettings,TransmitSetting(CallKey) 392TONEReceiveSettings,TransmitSetting(CallKey) 395ToneReceiveSettings,TransmitSetting(CallKey) 40

Scanningmodes 41Timeoperation 41Carrier operation 41Search operation 42

SKIPScanningChannels 42ScanningaFrequencyRange(VFOMode) 42Tone Scanning 43

ScanningforCTCSSandDCSTones/Codes 43Dual,Tri,andQuadWatch(TMR) 46

Chapter6. - Selectivecalling 48CTCSS 49

iv

UV-25X2/UV-25X4/UV-50X2

DCS 501000Hz,1450Hz,1750Hz,2100Hz Tone-burst 52

PartIII.How-toandsetupguides. 53

Chapter7. - Repeaters 54

Chapter8. - ApplicationSpecificSetup 57CommercialRadioSetup 57AmateurRadioSetup 58FRS,GMRS,MURS,PMR446 58

Chapter 9. - Customization 60Display 60SyncDisplayChannels 62

AppendixA. - Menudefinitions 64

AppendixB. - Technicalspecifications 74General 74

Receiver 75Transmit 75

VISITBAOFENGTECH.COMANDMIKLOR.COMFORDOWNLOADSANDHELP 1

PartI.Gettingstarted

Partonecoversthebasicsetupanduseofyourmobiletwo-waytransceiver.

CHAPTER1GETTINGSTARTEDCHAPTER2BASICUSE

CHAPTER3.–MENUQUICKREVIEWCHAPTER4.–PROGRAMMINGCHAPTER5.–OTHERSETTINGS

2 VISITBAOFENGTECH.COMANDMIKLOR.COMFORDOWNLOADSANDHELP

UV-25X2/UV-25X4/UV-50X2

Chapter1.–GettingStartedBEFORE PROCEEDING INSURE:

• Qualifiedtechniciansshallservicethisequipmentonly.Donotmodifytheradioforanyreason.

• UseonlyBTECHsuppliedorapprovedaccessories.• Turnoffyourradiopriortoenteringanyareawithexplosiveandflammablematerials.Do

NOTUSEyourtransceiveratagas/fuelstation• Forvehicleswithanairbag,donotmountyourradiointheareaoveranairbagorinthe

airbagdeploymentarea.• Donotexposetheradiotodirectsunlightoveralongtime,norplaceitclosetoaheating

source.• Iftheunitemitssmokeoranodor,youshouldimmediatelycutoffthepowersupply.Then

sendtheradiotothenearestservicecenterordealer• Donotoperatethemobiletransceiveronhighpowerunlessitisnecessary.Donottransmit

forlongperiodsoftime,asitmayoverheatthetransceiver.• Keeptheunitawayfromdusty,dampandwetenvironments• Usethecorrectpowersupply(~13.8V);donotuseincorrectorhighervoltage(e.g.24V)


Unpacking and Inspecting • Pleasecheckthepackagingofyourradioforanysignsofdamage.• Carefullyopenthebox,andconfirmyourreceivedtheitemslistedbelow.• Ifyoufindtheradioortheincludedaccessoriesaredamagedorlost,immediatelycontact

yourdealer.Whatʼs in the Box

UV-25X4 UV-50X2

**UV-25X2(NotPictured)

MobileRadio

Microphone

UV-25X4/UV-25X2*orUV-50X2***PowerCable(CigAdapterforUV-25X2,UV-25X4)**PowerCable(DirectConnectforUV-50X2)

MountingScrewsMountingBracket

andFuse


UV-25X2/UV-25X4/UV-50X2

UV-25X2:OverviewoftheFrontPanel


1. V/MModeSwitch(Channel/Frequency)

2. Monitorfunction3. Callkey4. FMradiofunctionkey5. Power,On/OffPress+VolumeKnob6. ExitMenu+A/B/C/Dsignalswitching

+alarmfunction7. Displayscreen8. MicrophoneConnector9. ConfirmKeyPress+MainSelector

(MenuKnob)

:wheninstandby,presstosendcallerID(ANI)intheselectedsignalingmode;whiletransmitting,presstosendactivatesignaling.

:presstoturnonthesquelch,repeattoturnoffthesquelch.

:presstoswitchbetweenchannelmodeandfrequencymode.

:presstochoosebetweenA,B,C,orDfrequencies---Orexitfunctionmode.

:presstoenterandexitFMradio

RJ45Connector:


UV-25X2/UV-25X4/UV-50X2



1. Power,On/OffPress+VolumeKnob2. V/MModeSwitch

(Channel/Frequency)3. ConfirmKeyPress+MainSelector

(MenuKnob)4. Monitorfunction5. FMradiofunctionkey6. Displayscreen7. Callkey8. ExitMenu+A/B/C/Dsignalswitching

+alarmfunction9. MicrophoneConnector

:wheninstandby,presstosendcaller

ID(ANI)intheselectedsignalingmode;whiletransmitting,presstosendactivatesignaling.





RJ45Connector:


UV-25X2/UV-25X4/UV-50X2



1. Power,On/OffPress+VolumeKnob2. V/MModeSwitch

(Channel/Frequency)3. ConfirmKeyPress+MainSelector

(MenuKnob)4. Monitorfunction5. FMradiofunctionkey6. Displayscreen7. Callkey8. ExitMenu+A/B/C/Dsignalswitching

+alarmfunction9. High/LowerPowerSwitch+Lock10. MicrophoneConnector11. DATA,ProgrammingJack:PC-04

ProgrammingCableJack

:wheninstandby,presstosendcallerID(ANI)intheselectedsignalingmode;whiletransmitting,presstosendactivatesignaling.





:presstotogglehigh/lowerpower;holdtokey-lock/orkey-unlock

RJ45Connector:


UV-25X2/UV-25X4/UV-50X2

UV-25X2&UV-25X4:OverviewoftheRearPorts


1. TRRSLineOut:IncludesPTT/Microphone/Audio-out/GND

2. DATA,ProgrammingJack:PC-04ProgrammingCableJack

3. CoolingFan4. SO-239RFAntennaConnector:

ConnectstoPL-259Antennas5. DCPowerInput(13.8V–7APeak)

TRRSLine-OutConnector:.

ProgrammingCable:PC-04Cableavailableat:www.baofengtech.com/accessoriesProgrammingsoftwareavailableat:www.baofengtech.com/download


UV-25X2/UV-25X4/UV-50X2

UV-50X2:OverviewoftheRearPorts


1. SO-239RFAntennaConnector:ConnectstoPL-259Antennas

2. DCPowerInput(13.8V–20APeak)3. TRRSLineOut:Includes

PTT/Microphone/Audio-out/GND4. CoolingFan

TRRSLine-OutConnector:.

ProgrammingCable:PC-04Cableavailableat:www.baofengtech.com/accessoriesProgrammingsoftwareavailableat:www.baofengtech.com/download


UV-25X2/UV-25X4/UV-50X2

Hand Held Mic Keys and Description1 “MENU”:Functionkey

VFO/MRToggle(LongPress)2 “UP”:Higherfrequency3 “DOWN”:Lowerfrequency4 “EXIT”:ExittheABchannelswitch,alarm

functionAlarmActivate(LongPress)

5 “*/SCAN”:Scanningfunction6 “#/LOCK”:High/LowPowerToggle

KeyboardLock(LongPress)7 “0”:Number08 “1”:Number19 “2”:Number210 “3”:Number311 “4”:Number412 “5”:Number513 “6”:Number614 “7”:Number715 “8”:Number716 “9”:Number9


ColorDisplayandIconDescriptionsTheTopLineontheLCDwillshowthecurrentselectedchannel’ssettingsataglimpse:

Icon Description Icon Description Icon

Description

ChannelallowedtoTXandRX

DCSEnabled(TX,RXorBoth)

PositiveOffset(Freq.Mode)

ChannelallowedtoRXOnly

TransmitPower:Low

NegativeOffset(Freq.Mode)

ChannelallowedtoTXOnly

TransmitPower:High

OffsetEnabled(Chan.Mode)

ChanneldisabledtoTXorRX

2ToneCallingEnabled

ChannelsettoNarrowband

KeypadisLocked

5ToneCallingEnabled ChannelsettoWideband

CTCSSEnabled(TX,RXorBoth)

DTMFCallingEnabled ChannelReverseEnabled

BatteryStrength(WeakBatteryIndicator)


UV-25X2/UV-25X4/UV-50X2


Antenna Basics YourMobileRadioKitdoesnotincludeanAntenna.ItisVERYImportanttoNOTtransmitwithoutaantennaordummyloadattachedtothemobileradio.Doingso,willcauseharmtotheinternalcomponentsofyourradio.Youwillwanttochooseasuitableantennaforthebandsyouplanontransmittingandreceivingon.Ifyouplanontransmittingon145MHzyouwillwanttoensureyouhavepickedanantennathatstatesitiscapableofworkingwith145MHz.Ifanantennaisnotproperlytunedforthefrequencyyoutransmiton–itcancausedamagewiththereflectedpowergoingbackintotheradio.PickanantennawithSWRoflessthan1.5:1tosafelytransmit.

GroundingPlane:Antennasrequireanappropriategroundingplanetoproperlywork:

Magnetically Mounted Antennas: Theseantennasmustbegroundedtoametalsurface,suchasavehiclebody.Magneticbaseantennasdonotproperlyoperateunlesstheyarefullymagneticallygroundedfirst.


UV-25X2/UV-25X4/UV-50X2

NMO or PL-259 Base Antennas:

Theseantennaswillnormallyrequireabaseormobilehardwarekit.Thesekitsaregroundedeitherthrough:drillorclampinsertsonvehicles,magneticallymounted,oravailableasstationarybasehardwarekits.Someantennasmayincludeabasestationgroundingplanekit.

AntennaRequirementsAntennaSWRRating:1.5:1orless(ontheradiofrequenciesinuse.)AntennaImpedance:50ohm(use50ohmratedcoaxandcoaxconnectors)AntennaGrounding:EnsuretheantennaismountedwithagroundingplaneVisuallyInspectCoax/ConnectorsforanySlitsorDamage–moistureshouldnotbeallowedtopenetratefittingsoryourcoaxTomaximizethelifeofyourradio,itisimportanttounderstandantennabasicsbeforetransmittingonyourradio,transmittingwithoutanantenna,orwithhighSWR(StandingWaveRation)–canvoidwarrantysupport.AnActiveSWRMeterisagreattooltohavewhenselectinganantennaforyourneeds.YoucanmonitorandconfirmthatyourSWRiswithinsafelevelswhensettingupyourradioforthefirsttime(periodicallycheckingSWRandyourantennaset-upisadvised)


Chapter2.–BasicShortcutsandUsePound#KeyKeypadLock

Toenableordisablethekeypadlock,pressandholdthe keyforabouttwoseconds.Aquicktoggleofthe#willalternatepowerlevelsfromHighpowertoLowpowerThekeypadlockwilllockboththemainradiobuttonsitselfandalsothehandheldkeypad.ThePTT/MONI/andPowerButtonswillnotbelockedwhenenabled.

Star*KeyAshortmomentarypressofthekeyenablesthereversefunction(reversestheTX/RXsettingsaccordingtoOffsetsettings)WhenlisteningtobroadcastFMamomentarypresswillstartthescanning.ScanninginbroadcastFMwillstopassoonasanactivestationisfoundToenablescanning,pressandholdthe keyforabouttwoseconds


UV-25X2/UV-25X4/UV-50X2

TurningtheunitonToturntheuniton,simplypushandholdthevolumeknobuntilitturnson.IfyourradiopowersoncorrectlythereshouldbeanaudibletoneafteraboutonesecondandthedisplaywillshowamessageorflashtheLCDdependingonsettings

TurningtheunitoffToturntheunitoff,simplypushandholdthevolumeknobuntilitturnsoff.Theunitisnowoff.

AdjustingthevolumeToturnupthevolume,turnthevolumeknobclock-wise.Toturnthevolumedown,turnthevolume/powerknobcounter-clock-wise.

Byusingthemonitorfunction(MONIbutton),youcanmoreeasilyadjustyourvolumebyadjustingittotheun-squelchedstatic.


MakingacallPressandholdthePTTbuttononthesideofthehandheldmictotransmit.Whiletransmitting,speakapproximately3-5cm(1-2inches)fromthemicrophone.WhenyoureleasethePTTyourtransceiverwillgobacktoitsreceivemode.

ChannelselectionTherearetwomodesofoperation:Frequency(VFO)mode,andChannelorMemory(MR)mode.Foreverydayuse,Channel(MR)modeisgoingtobeawholelotmorepracticalthanFrequency(VFO)mode.However,Frequency(VFO)modeisveryhandyforexperimentationoutinthefield.Frequency(VFO)modeisalsousedforprogrammingchannelsintomemory.FordetailsonhowtoprogramyourtransceiverseeChapter4,Programming.Ultimatelywhichmodeyouendupusingwilldependentirelyonyourusecase.

Frequency(VFO)mode

InFrequency(VFO)modeyoucannavigateupanddownthebandbyusingthe and keys(orrotatingtheselectorknob).Eachpress(orrotationclick)willincrementordecrementyourfrequencyaccordingtothefrequencystepyou'vesetyourtransceiverto(MenuItem1:Step)


UV-25X2/UV-25X4/UV-50X2

Youcanalsoinputfrequenciesdirectlyonyournumerickeypadwithkilohertzaccuracy.However,theradiowillfloortothenearestfrequencythatcorrespondstoyourfrequencystep,inotherwords,whenyouinputfrequencieswithgreaterthan1kHzresolution(suchas145.6875MHzintheexamplebelow),alwaysroundyourinputup.

Justbecauseyoucanprograminachanneldoesnotmeanyou'reautomaticallyauthorizedtousethatfrequency.Transmittingonfrequenciesyou'renotauthorizedtooperateonisillegal,andinmostjurisdictionsaseriousoffence.Ifyougetcaughttransmittingwithoutalicenseyoucanandwillgetfined,andinworstcasesenttojail.However,itislegalinmostjurisdictionstolisten.Contactyourlocalregulatorybodyforfurtherinformationonwhatlaws,rulesandregulationsapplytoyourarea.

Channel(MR)mode

TheuseofChannel(MR)modeisdependentonactuallyhavingprogrammedinsomechannelstouse.TofindoutmoreonhowtoprogramchannelsseeChapter4,Programming.


Onceyouhavechannelsprogrammedandready,youcanusethe and keystonavigatebetweenchannels(orRotatetheSelectorKnob)

IfyouhavechannelsprogrammedwithTransmitpowersettoLow,youcanusethe keytomomentarilyswitchovertohighpowerifyou'rehavingtroublegettingthrough.

MonitorBothVFO&MRModesYoucantogglefromVFOandMR(MemoryRecall)modebyeitherpressingtheV/Mbuttononthefrontofyourradio,oryoucantogglemodesfromtheHandheldMicbyalongpressofthe‘Menu’button.TheVFO/MRmodewillonlytoggleonthecurrentselectedA/B/C/Dline–whiletheotherchannellineswillremainonchannelormemorymodeastheywereselected.Thisallowsyoutomonitorchannelandfrequencymodesimultaneously


UV-25X2/UV-25X4/UV-50X2

Chapter3.–MenuQuickReviewQuickMenuSettings(FullDefinitionsinAppendixA)

TosettheMenuoptionsfromtheMobilebodyusetheMPresstheselectorknobontheradiobody(ortheMenuKeyonthemicrophone)toselectandconfirmthechanges,whilerotatingtheselectorknob(orusingthemicrophonearrowkeys)

willchangeyoursettings.

0. [EnterMenu]+[0]:TMR–Thismodeselectswhatdisplaysaremonitoredinthebackgroundbesidestheprimaryselectedchannel.Youcanmixandmatchbetweenallorpartialchannelstoallowdual,tri,orquadwatch

1. [EnterMenu]+[1]:STEP–setthefrequencyincrementsstepinVFOmode:2.5kHz,5kHz,6.25kHz,10kHz,12.5kHz,25kHzselectable.

2. [EnterMenu]+[2]:SQL–Setsthereceiversquelchlevel:0isOFF,1isthelowestsettingthrough9whichisthehighestsetting.

3. [EnterMenu]+[3]:TXP–SetsthetransmitpowersettingfromHIGHtoLOW.4. [EnterMenu]+[4]:AUTOLK–Keypadauto-locksetting.Thisactivatesthekeypadauto-lock

feature,whichlockthekeypadafter8secondsofnouse;pressingthe#keyfor2seconds


willreleasetheautolock.5. [EnterMenu]+[5]:TOT-transmissiontime-outtimer.Setsthemaximumtransmittime

from15to600seconds(15secondsteps).6. [EnterMenu]+[6]:APO–AutoPowerOffpowersofftheradioafterapredeterminedtime

withnoreceiveractivity.(30>300minutes)7. [EnterMenu]+[7]:WN-WIDEorNARROWbandwidthsettings(12.5/25khz).8. [EnterMenu]+[8]:ABR–UnusedSetting9. [EnterMenu]+[9]:BEEP-turnskeybeepsOFForON.10. [EnterMenu]+[1]+[0]:R-DCS-DCSreceive/squelchsettings.OptionsincludetheD023N-

D754NpositivesequenceandtheD023I-D754Ireversedsequence.11. [EnterMenu]+[1]+[1]:R-CTCS-CTCSSreceive/squelchsettings.Selectablefrom67.0HZ-

254.1HZ.youcanusethekeypadtoquicklyenterinthedesiredsetting12. [EnterMenu]+[1]+[2]:T-DCS-DCStransmitsettings.OptionsincludetheD023N-D754N

positivesequenceandtheD023I-D754Ireversedsequence.13. [EnterMenu]+[1]+[3]:T-CTCSCTCSStransmitsettings.Selectablefrom67.0HZ-254.1HZ.

youcanusethekeypadtoquicklyenterinthedesiredsetting14. [EnterMenu]+[1]+[4]:DTMFST–DTMFtransmittonesettings.

OFF:Notonesheardthroughthespeakerwhentransmitting.KEY:OnlymanuallykeyedDTMFcodesareheard.ANI:OnlyautomaticallykeyedDTMFcodesareheard.BOTH:AllDTMFcodesareheard.

15. [EnterMenu]+[1]+[5]:BCL-busychannellock-out.Ifyouhavethisturnedonthe


UV-25X2/UV-25X4/UV-50X2

transmitterwillnottransmitifachannelisreceivingatthetime16. [EnterMenu]+[1]+[6]:SC-ADD-scansettings.OFF:Thisremovesthechannelfromthe

scanlist.ON:Thisaddsthechanneltoscanninglist.17. [EnterMenu]+[1]+[7]:SC-REV–Scanningsettings.TO:timeoutscan,afterthestopping

onanactivesignal,scanningwillresumeafterafewseconds.CO:ScanningwillstoponacarrierchannelandwillresumeafterthecarrierchannelstopsreceivingSE:Scanningwillstoponceanactivecarrierchannelisfound.

18. [EnterMenu]+[1]+[8]:OPTSIG–Turnontheoptionalsignaling.OFFthechannelormodewillnotuseoptionalsignalingDTMF:DTMFsignalingrequired.2TONE:2tonesignalingrequired.5TONE:5tonesignalingrequired.(PCprogrammingisrequiredtospecifytheDTMF,2Tone,and5Tonesettings)

19. [EnterMenu]+[1]+[9]:SPMUTE–Squelchsettingswhencombiningstandardandoptionaltones.QT:ThesquelchwillopenforjustaCTCSSorDCSReceivetone.AND:Thisrequiresboththeoptionaltonesettings(Menu20)andCTCSS/DCSsettingstobereceived.OR:IfaeithertheDCS/CTCSSoroptionalsignalingisreceivedthesquelchwillopen

20. [EnterMenu]+[2]+[0]:PTT-ID-PTT-IDtransmitsetting.OFF:noIDcodesentwhentransmitting.BOT:sendIDcodeatBeginningofTransmit.EOT:sendIDcodeatEndofTransmit.BOTH:sendIDcodeatbothbeginningandendoftransmit.(PTTIDcodeinformationcanonlybesetbythePCsoftware)

21. [EnterMenu]+[2]+[1]:PTT-LT-PTT-IDtransmitdelaysetting.(DelayTimerangeis0-30seconds.).ThisisthedelaytimebeforetransmittingthePTTID


22. [EnterMenu]+[2]+[2]:S-INFO-Signalinformationandautomaticdialingmemory.1-15groupsignalcode/decodememory.Thememorylistisprogrammedthroughsoftware.

23. [EnterMenu]+[2]+[3]:EMC-TP-alarmmodesettings.ALARM:turnsonthealarmsoundonthedeviceitself.ANI:SendstheAlarmandPTTIDthroughtheTransmitter.BOTH:combinesbothoftheoptionsabove.OFF:Disablesalarm

24. [EnterMenu]+[2]+[4]:EMC-CH-alarmchannelsetting.ThisisthechannelthatthealarmwilltransmitthePTTIDandAlarmsoundon

25. [EnterMenu]+[2]+[5]:SIG-BP–PagerRingatReceptionofMatching2Tone/5Tone/DTMF(on/off)

26. [EnterMenu]+[2]+[6]:CHNAME-channelnameedit.27. [EnterMenu]+[2]+[7]:CA-MDF-DisplayMode(DisplayA)-FREQ:displaysFrequency.

CH:displayschannelnumber.NAME:displaysassignedchannelname.28. [EnterMenu]+[2]+[8]:CB-MDF-DisplayMode(DisplayB)-FREQ:displaysFrequency.

CH:displayschannelnumber.NAME:displaysassignedchannelname.29. [EnterMenu]+[2]+[9]:CC-MDF-DisplayMode(DisplayC)-FREQ:displaysFrequency.

CH:displayschannelnumber.NAME:displaysassignedchannelname.30. [EnterMenu]+[3]+[0]:CD-MDF-DisplayMode(DisplayD)-FREQ:displaysFrequency.

CH:displayschannelnumber.NAME:displaysassignedchannelname.31. [EnterMenu]+[3]+[1]:LANGUA–LanguageDisplayMode(EnglishorChinese)32. [EnterMenu]+[3]+[2]:SYNC–Withthis2Channellinescanbesynchedtogether(A+B,

C+D,A+BandC+D)(useinconjunctionwithMenu27through30todisplaythechannel


UV-25X2/UV-25X4/UV-50X2

nameandfrequencysimultaneously)33. [EnterMenu]+[3]+[3]:MAINFC–MainLCDDisplayForeground,TextColor:Coloroptions

areBLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAY34. [EnterMenu]+[3]+[4]:MAINBCMainLCDDisplayBackgroundColor:Coloroptionsare

BLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAY35. [EnterMenu]+[3]+[5]:MENUFC-MenuLCDDisplayForeground,TextColor:Color

optionsareBLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAY.36. [EnterMenu]+[3]+[6]:MENUBC-MenuLCDDisplayBackgroundColor:Coloroptionsare

BLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAY37. [EnterMenu]+[3]+[7]:STA-FC–StatusBarLCDDisplayForeground,TextColor:Color

optionsareBLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAY38. [EnterMenu]+[3]+[8]:STA-BC-StatusBarLCDDisplayBackgroundColor:Coloroptions

areBLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAY39. [EnterMenu]+[3]+[9]:SIG-FC–SignalBarLCDDisplayForeground,TextColor:Color

optionsareBLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAY40. [EnterMenu]+[4]+[0]:SIG-BC-SignalBarLCDDisplayBackgroundColor:Coloroptions

areBLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAY41. [EnterMenu]+[4]+[1]:RX-FCReceiveActiveChannelForeground,TextColor:Color

optionsareBLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAY42. [EnterMenu]+[4]+[3]:TX-FC-TransmitActiveChannelForeground,TextColor:Color

optionsareBLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAY


43. [EnterMenu]+[4]+[3]:TransmitDisplay–StatusBarNumericalDisplayOptions(Power

LevelorMicLevel)44. [EnterMenu]+[4]+[4]:MEM-CH-savestheselectedchannel.45. [FKey}+[4]+[5]:DEL-CH-deletestheselectedchannel46. [EnterMenu]+[4]+[6]:SFT-D-Frequencydifferencedirectionsetting.OFF:nofrequency

difference.(+):Transmitoffsetamountwillbeapositiveoffset(higherthanthereceivefrequency).(-):Transmitoffsetwillbeanegativeoffset(amountwillbelowerthanthereceivefrequency).

47. [EnterMenu]+[4]+[7]:OFFSET-differencebetweenthetransmitandreceivefrequency.48. [EnterMenu]+[4]+[8]:ANI–DisplaystheradioIDcode.CodeonlycansetbyPC

software.49. [EnterMenu]+[4]+[9]:ANI-L-IDcodelength.Length=3,4,5.50. [EnterMenu]+[5]+[0]:REP-S–Toneburstrepeatersettings.PressingCALLwillsenda

predeterminedtone.Optionsare1000Hz,1450Hz,1750Hz,2100Hz.51. [EnterMenu]+[5]+[1]:REP-M-repeaterforwardingmodesetting.Usedinconjunction

withtworadiosconnectedasarepeater.OFF:turnedoff.CARRI:forwardsafteritreceivesacarriercall.CTDCS:forwardsafteritreceivescorrectCT/DCStoneTONE:forwardsafteritreceivesthecorrect2Toneor5Tone.DTMF:forwardsafteritreceivestheassignedDTMFcode.

52. [EnterMenu]+[5]+[2]:TMR-MR–TransmitDelayReturntime.Delaytimebefore


UV-25X2/UV-25X4/UV-50X2

returningtotheprimarychannelafterthesecondarysignalisclear.(PTTReturnTime)53. [EnterMenu]+[5]+[3]:STE-SquelchTailEliminationattheendofareceivedsignal.

RequiresbothtransmittingradiostohavetheoptionON.54. [EnterMenu]+[5]+[4]:RP-STE-RepeaterSquelchTailEliminationrequiresarepeater

withthisfunctionON.(ReversestheCT/DCSsettingsattheendofatransmissiontoquicklyturnofthesquelch)

55. [EnterMenu]+[5]+[5]:RPT-DL–RepeaterSquelchTailEliminatorDelaytime.(usewithMenu46)

56. [EnterMenu]+[5]+[6]:DTMF-G–AdjustthegainoftheDTMFtones.Selectablefrom0-60.0beingthequietestleveland60beingtheloudestmodulatedDTMFtones.

57. [EnterMenu]+[5]+[7]:M-GAIN–AdjustthegainthetheMicrophone.Selectablefrom0-127.0beingthequietestleveland127beingtheloudestmodulatedmicrophoneaudio.

58. [EnterMenu]+[5]+[8]:SKIPTX–QuadFrequencyOperation:Randomizetransmittingchannels-withanothercorrespondingmobileonthesame4channelstransmissionscanbespreadapartonthefourchannelsin2modes.[Off,Skip1(Randomizesinbetweenafterbothtransmittingandreceiving),Skip2(EachPTTPresswillsystematicallygotothenextchannel(PTT(A),PTT(B),PTT(C),PTT(D),PTT(A),et.)

59. [EnterMenu]+[5]+[9]:SC-MOD–AutomaticScanResumeMethod:Off(Scancancelswithkeypress,orreboot),PTT-SC(Scanningwillresumeaftertransmitting(orotherMenuOperations),MEM-SC(ScanMemoryduringRadioReboot:Ifscanningwasactivewhentheradiowaspowereddown,theradiowilresumescanningonrestart.


(ScanningalsoresumesaftertransmittingorotherMenuOperations),PON-SC(PowerOnScan:Theradiowillstartscanninguponturningon-nomatterwhatstateitwasinwhenpoweringdown.AlsotheradiowillscanafterMenuoperationsorTransmitting)

60. [EnterMenu]+[6]+[0]:RESET–ResetallVFOsettingsorALLsettings(channelsdeletedandVFOsettingscleared)


UV-25X2/UV-25X4/UV-50X2

Chapter4.–ProgrammingFrequency Mode vs. Channel Mode SwitchbetweenModesbyUsingtheV/MFrontPanelButton

Thesetwomodeshavedifferentfunctionsandareoftenconfused.FrequencyMode(VFO)-Usedforatemporaryfrequencyassignment,suchasatestfrequencyorquickfieldprogrammingifpermitted.ChannelMode(MR)-Usedforselectingpreprogrammedchannels.

ALLPROGRAMMINGMUSTBEINITIALLYDONEINTHEFREQUENCYMODE(VFO)ONLY.FROMTHEREYOUHAVETHE

OPTIONOFASSIGNINGTHEENTEREDDATATOASPECIFICCHANNELFORACCESSINTHECHANNELMODE

CALLTONES,TX/RXTONES,SQUELCH,ANDPOWERSETTINGSAREADJUSTABLEONSAVEDCHANNELSINCHANNELMODE

PROGRAMMINGCHANNELSAREDIFFERENTFROMTHEVFOSETTINGS;THEOFFSETSETTINGSARENOTSTORED,

INSTEADYOUENTERATXFREQUENCYDIRECTLY(E.G.145.000RXWITHANOFFSETOF(+).600WOULDBEATXFREQUENCYOF145.600).


Ex: Programming a Channel Repeater Offset with CTCSS Tone

EXAMPLENewmemoryinChannel99:RX=145.000MHz

TX=145.600MHz(Thisisa(+.600)Offset)TXCTCSStone123.0

1. ChangefromMenutoMenubypressingthe[EXIT/AB]button.2. SetradiotoVFOModebypressing[V/M]

Channelnumberattherightwilldisappear.3. Menu45 [M] 99 [M] [EXIT] DeletesPriorDatainchannel(Ex.99)4. Menu13 [M] 123.0 [M] [EXIT] SelectsdesiredTXencodetone5. EnterRXfrequency(Ex.145000)6. Menu44 [M] 99 [M]Enterthedesiredchannel(Ex99)

Ø [EXIT] RXhasbeenadded7. EnterTXfrequency(Ex.145600)8. Menu44 [M] 99 Enterthesamechannel(Ex99)

Ø [EXIT] TXhasbeenadded9. [V/M]ReturntoMRMode.Channelnumberwillre-appear.


UV-25X2/UV-25X4/UV-50X2

Ex. Programming a Simplex Channel with CTCSS tone EXAMPLENewmemoryinChannel99:

RX=446.000MHzTXCTCSStone123.0

1. ChangefromMenutoMenubypressingthe[EXIT/AB]button.2. SetradiotoVFOModebypressing[V/M]

Channelnumberattherightwilldisappear.3. Menu45 [M] 99 [M] [EXIT] DeletePriorDatainchannel(Ex.99)4. Menu13 [M] 123.0 [M] [EXIT] SelectdesiredTXencodetone(Ex123

CTCSS)Ø Use[A/B]toselectUpperdisplay->EnterRXfrequency(Ex.446000)

5. Menu44 [M] 99 [M] Enterthedesiredchannel(Ex99)Ø [EXIT] Channelhasbeenadded

6. [V/M]ReturntoMRMode.Channelnumberwillre-appear.


Chapter5.–OtherSettingsTogglefromHightoLowPower

AquickpressoftheMicrophone‘#’willalternatepowerlevelsfromHighpowertoLowpower

StoringanFMRadioStationandScanningUsePCsoftwaretostoreFMradiochannelsnames,youcannametheFMchannelandinsteadofdisplaythefrequencyyourFMstationwilldisplaythename.(softwareFMoption(FMchannelsarenotstored,onlythechannelnamesare))Pressthemicrophone[*]KeytoscantheFMradio.

KeypadLock-out

Holdthemicrophone[#key]for2secondsatstandbytoturnon/offthekeypadlock-outfunction.(TheLockiconappears,whentheradioislockedout)

PTTIDSetting1.UsePCsoftwaretochangePTT-IDcode.2.SettheMenu18settingsontheradiotoselectthePTTIDsignalmode(2Tone,5Tone,orDTMF),


UV-25X2/UV-25X4/UV-50X2

3.SettheMenu20settingstoselectwhenthePTTIDistransmitted.4.SettheMenu21settingstoprogramthePTTIDtransmitdelaytime.5.Whenallthesettingsareset,whenyoutransmit(PressthePTT)TheradiowilltransmitthePTTID.

DTMFRXSettings

ThisradiohasDTMFcodinganddecoding.UsethePCsoftwaretosettheDTMFsignalsettingsfirst.

DTMFTXSettings

Intwo-wayradiosystems,DTMFismostcommonlyusedforautomationsystemsandremotecontrol.AcommonexamplewouldbeinamateurradiorepeaterswheresomerepeatersareactivatedbysendingoutaDTMFsequence(usuallyasimplesingle-digitsequence).

Table7.1.DTMFfrequenciesandcorrespondingcodes

1209Hz 1336Hz 1477Hz 1633Hz697Hz 1 2 3 A-

770Hz 4 5 6 B-


852Hz 7 8 9 C-

941Hz * 0 # D-

TheBTECHUV-25X2/UV-25X4/UV-50X2hasafullimplementationofDTMF,includingtheA,B,CandDcodes.Thenumericalkeys,aswellasthe ,and ,keyscorrespondtothematchingDTMFcodesasyouwouldexpect.TheA,B,CandDcodesarelocatedinthe , , and keysrespectively(†).ManuallyTXDTMFTones:TomanuallysendDTMFcodes,pressthekey(s)whileholdingdownthePTTkey.AutomaticallyTXDTMFTones:SaveittoMemoryandTransmit:YoucanalsoprogramaDTMFtonetothesavedcallinglist(requiresthePCsoftware)totheoneofthe15Memorycallbanksintheradio.TotransmitselectthePre-setDTMFsavedsettingonMenu22andthenpressthecallkeytosendthesavedDTMFTXtone.

RemoteStunFirstsettheDTMFRemoteStunToneandMasterControlIDinSoftware:WhenyourradioreceivestheDTMFRemoteStunToneSequence(Setbysoftware)(RequiresMenu18and19to


UV-25X2/UV-25X4/UV-50X2

acceptDTMFsignaling)itwillcommandtheradiotodisabletransmittingabilities.TheMasterIDstationmustfirstidentifyandsendthePTTID(setinsoftwareas“MasterID”)–oncetheMasterStationidentifiesitself,theradioissettoreceivecommandtones,iftheMonitorRemoteStuntoneisreceived-theradiowillnolongerbeabletotransmit.BoththemasterIDstationandremotestunsignalmustbesetupinsoftware.

RemoteKillFirstsettheDTMFRemoteKillToneandMasterControlIDinSoftware:WhenyourradioreceivestheDTMFRemoteKillToneSequence(Setbysoftware)(RequiresMenu18and19toacceptDTMFsignaling)itwillcommandtheradiotodisabletransmittingandreceiving.TheMasterIDstationmustfirstidentifyandsendthePTTID(setinsoftwareas“MasterID”)–oncetheMasterStationidentifiesitself,theradioissettoreceivecommandtones,iftheMonitorRemoteKilltoneisreceived-theradiowillnolongerbeabletotransmitorreceive.BoththemasterIDstationandremotestunsignalmustbesetupinsoftware.

RemoteReviveFirstsettheDTMFRemoteReviveToneandMasterControlIDinSoftware:WhenyourradioreceivestheDTMFRemoteReviveToneSequence(Setbysoftware)(RequiresMenu18and19toacceptDTMFsignaling)itwillreactivatetheradioafterithasbeenremotelystunnedorkilled.The


MasterIDstationmustfirstidentifyandsendthePTTID(setinsoftwareas“MasterID”)–oncetheMasterStationidentifiesitself,theradioissettoreceivecommandtones,iftheMonitorRemoteKilltoneisreceived-theradiowillrevivedfromastun/killcommand.BoththemasterIDstationandremotestunsignalmustbesetupinsoftware.

ReadMoreAboutRemoteCommandsAIn-DepthdownloadablePDFisavailableat:www.baofengtech.com/supportwhichdetailsRemotecommandsandhowtousethem.ThisDocumentExplainswithexamplesonhowDTMFremotecommandsareused

DTMFReceiveSettings,TransmitSetting(CallKey)1. Press[MENU]Keyselect18OPTSIG,press[F]KeyselectDTMFfunction.2. Press[MENU]Keyselect22S-INFO,press[F]Keyselectpre-codesignalgroup(1-15).(TheDTMFSignalmustbesavedfirstinthePCsoftwaresettingunderDTMFsettings.3. Ifproperlysetup(onMenu18and19),yourradiowillopenthesquelchwhenitreceivestherequiredDTMGsignal.4. Press[Call]KeytosendthesameDTMFyouhaveselectedinMenu22.

2TONEReceiveSettings,TransmitSetting(CallKey)


UV-25X2/UV-25X4/UV-50X2

1. Press[MENU]Keyselect18OPTSIG,press[F]Keyselect2TONEfunction.2. Press[MENU]Keyselect22S-INFO,press[F]Keyselectpre-codesignalgroup(1-15).(The2ToneSignalmustbesavedfirstinthePCsoftwaresettingunder2TONEsettings)3. Ifproperlysetup(onMenu18and19),yourradiowillopenthesquelchwhenitreceivestherequired2TONEsignal.4. Press[Call]Keytosendthesame2TONEyouhaveselectedinMenu22.

5ToneReceiveSettings,TransmitSetting(CallKey)1. Press[MENU]Keyselect18OPTSIG,press[F]Keyselect5TONEfunction.2. Press[MENU]Keyselect22S-INFO,press[F]Keyselectpre-codesignalgroup(1-15).(The5ToneSignalmustbesavedfirstinthePCsoftwaresettingunder5TONEsettings)3. Ifproperlysetup(onMenu18,and19),yourradiowillopenthesquelchwhenitreceivestherequired5TONEsignal.4. Press[Call]Keytosendthesame5TONEyouhaveselectedinMenu22.


ScanningmodesThescannerisconfigurabletooneofthreewaysofoperation:Time,carrierorsearch,eachofwhichisexplainedinfurtherdetailsintheirrespectivesectionbelow.

Procedure5.1.Settingscannermode1. Pressthe keytoenterthemenu.2. Enter“17”onyournumerickeypadtocometoscannermode.3. Pressthe keytoselect.4. Usethe and keystoselectscanningmode.5. Pressthe keytoconfirmandsave.6. Pressthe keytoexitthemenu.

TimeoperationInTimeOperation(TO)mode,thescannerstopswhenitdetectsasignal,andafterafactorypre-settimeout,itresumesscanning.

CarrieroperationInCarrierOperation(CO)mode,thescannerstopswhenitdetectsasignal,andafterafactorypresettimewithnosignalitresumesscanning.


UV-25X2/UV-25X4/UV-50X2

SearchoperationInSearchOperation(SE)mode,thescannerstopswhenitdetectsasignal.Toresumescanningyoumustpressandholdthe keyagain.

SKIPScanningChannelsYoucanconfigurechannelstobeaddedorremovedfromthescanninglistonthefly.

1. Pressthe keytoenterthemenu.2. EnterMenuItem16onyournumerickeypadtocometoscanningaddmode.3. Pressthe keytoselect.4. Usethe and keystoselectifthechannelwillbeaddedorremovedfromthe

scanninglist.Thechangewillapplytothecurrentchannelselected5. Pressthe keytoconfirmandsave.6. Pressthe keytoexitthemenu.

ScanningaFrequencyRange(VFOMode)TheUV-5X3canscanauserselectedfrequencyrange


1. PressandHold forabout2seconds2. TheDisplaywillshow:RANGE---:---3. EntertheFrequencyRange(InMHz)Desired4. Example:144:1455. TheRadiowillscanthefrequencyrangefrom144.000MHz-145.9975MHzAccordingTo

YourFrequencyStep(SeeMenu1Description)

ToneScanningScanningforCTCSSandDCSTones/Codes

ScanningforaCTCSStoneorDCScodecanbedonewhileFrequencyMode(VFO)orChannelMode(MR)isselected.OnlywhenVFOmodeisselected,canthedetectedtone/codebesavedtomenu11/10.CTCSStoneandDCScodescanningmodecanbeaccessedwithorwithoutasignalbeingpresent.Thescanningprocessitselfonlyoccurswhileasignalisbeingreceived.NotallrepeatersrequiringaCTCSStoneorDCScodeforaccesswilltransmitoneback.Inthatcase,thetransmitterofastationthatcanaccesstherepeaterwouldneedtobe


UV-25X2/UV-25X4/UV-50X2

scanned.Inotherwords:thiswouldbedonebylisteningtostationsontherepeater'sinputfrequency.

ScanningforCTCSSTone(ACTIVESIGNALREQUIRED)

1. Pressthe keytoenterthemenu.2. Enter onyournumerickeypadtocometoMenu11:R-CTCS3. Pressthe keytoselect.4. Pressthe tobeginCTCSSscanning

Aflashing"CT"willbeintheleftstatusdisplaytoindicatetheradioisinCTCSSscanningmode.Inthismode,whenevertheradioisreceivinganRFsignalontheselectedMRchannelorVFOfrequency,thelowerdisplaywillcyclethroughtheCTCSStonesastheyarebeingtested.OncethefrequencyofthereceivedCTCSStoneisdetermined,the"CT"indicatorwillstopflashing.Pressthe keytosavethescannedtoneintomemory(VFOModeOnly)thenpressthe keytoexitthemenu.

Don'tforgettosetVFOmenu11backtoOFFwhentheCTCSStoneisnolongerrequired.


ScanningforaDCStone(ACTIVESIGNALREQUIRED)

1. Pressthe keytoenterthemenu.2. Enter onyournumerickeypadtocometoMenu10:R-DCS3. Pressthe keytoselect.4. Pressthe tobeginDCSscanning

Aflashing"DCS"willbeintheleftstatusdisplaytoindicatetheradioisinDCSscanningmode.Inthismode,whenevertheradioisreceivinganRFsignalontheselectedMRchannelorVFOfrequency,thelowerdisplaywillcyclethroughtheDCScodesastheyarebeingtested.OncethebitsofthereceivedDCScodearedetermined,the"DCS"indicatorwillstopflashing.Pressthe keytosavethescannedtoneintomemory(VFOModeOnly)thenpressthe keytoexitthemenu.

Don'tforgettosetVFOmenu10backtoOFFwhentheDCStoneisnolongerrequired.


UV-25X2/UV-25X4/UV-50X2

Dual, Tri, and Quad Watch (TMR) Incertainsituations,theabilitytomonitortwo,threeorevenfourchannelsatoncecanbeavaluableasset.TheBTECHUV-25X2,UV-25X4,andUV-50X2featuresDual,Tri,andQuadWatchfunctionalitywiththeabilityscanbetweentwo-fourfrequenciesatafixedintervalsandtolockthetransmitfrequencytooneofthefourchannelsitmonitors

1. Pressthe keytoenterthemenu.2. Enter“0”onthenumerickeypadtogettotheTMRWatchSettings3. Press toselectwhichchannelsaremonitored(SeeAppendixA).4. Usethe and keystoenableordisable.5. Pressthe keytoconfirm.6. Pressthe keytoexitthemenu.

DuetothewaytheBTECHUV-25X2/UV-25X4/UV-50X2areconstructed,wheneveroneoftheA,B,C,orDFrequencies(VFO/MR)goesactive, itwilldefault totransmitonthatchannelforthetimeyouhaveselectedonMenu52–thiscanbeturnedoffandexplainedbelow:


LockingtheDefaulttransmitchannel1. Pressthe keytoenterthemenu.2. Enter52onthenumerickeypadtogettoTMR-AB.3. Press toselect.4. Selectoff,toturnofftheTMRswitchingtime.5. Pressthe keytoconfirm.6. Pressthe keytoexitthemenu.7. TheradiowillnowonlytransmitontheMainchannelselected(TheMainFrequency

indicatorarrowwillbepointingatthedisplaysetasprimary)


UV-25X2/UV-25X4/UV-50X2

Chapter6.-SelectivecallingSometimeswhenyou'reworkingwithlargergroupsofpeopleusingthesamechannel,thingscangetverycrowded,veryfast.Tominimizethisproblem,severalmethodsofblockingoutunwantedtransmissionsonyourfrequencyhavedeveloped.Ingeneral,therearetwoformsofselectivecallingintwo-wayradiosystems:Groupcalling,andindividualcalling.Groupcalling,asthenamesuggest, isaone-to-manyformofcommunication.Everyradioinyourworkinggroupisconfiguredthesamewayandanyradiowillmakecontactwitheveryotherradiointhegroup.Individualcalling,sometimesalsoknownaspaging,isaone-to-oneformofcommunication.EveryradioisprogrammedwithauniqueIDcode.Andonlybysendingoutamatchingcodecanyougetthatradiotoopenuptoyourtransmissions.TheBTECHX-SERIESMOBILESfeaturesthreeadditionalwaysofgroupcalling(2TONE,5TONE,ANDDTMFCALLINGAREFOUNDINCHAPTER5):

• CTCSS• DCS• Tone-burst(1000Hz,1450Hz,1750Hz,2100Hz)


UsingthesefeaturesdoesNOTmeanthatotherswon'tbeabletolisteninonyourtransmissions.Theyonlyprovideamethodtofilteroutunwantedincomingtransmissions.Anycommunicationsmadewhileusingthesefeatureswillstillbeheardbyanyonenotemployingfilteringoptionsoftheirown.YoucanchangetheCTCSSorDCSsettingswhileinmemory(MR)mode.

CTCSSand1750Hztone-burstarealsopopularmethodsamongamateurradiooperatorstoopenuprepeaters.

CTCSSCTCSSissetwithmenus11R-CTCSand13T-CTCS.

Procedure8.1.CTCSSsetuphow-to

1. Pressthe keytoenterthemenu.2. Enter onthenumerickeypadtogettoreceiverCTCSS.3. Press toselect.


UV-25X2/UV-25X4/UV-50X2

4. EnterdesiredCTCSSsub-tonefrequencyinhertzonthenumerickeypad.5. Press toconfirmandsave.6. Enter onthenumerickeypadtogototransmitterCTCSS.7. Press toselect.8. EnterdesiredCTCSSsub-tonefrequencyinhertzonthenumerickeypad.Makesureit's

thesamefrequencyasthatyouenteredforreceiverCTCSS.9. Press toconfirmandsave.10. Press toexitthemenusystem.

ToturnCTCSSoff,followthesameprocedurebutsetittooffwiththe keyinsteadofselectingaCTCSSsub-tonefrequency.Formoreinformationseethesectioncalled“11R-CTCS-ReceiverCTCSS”andthesectioncalled“13T-CTCS-TransmitterCTCSS”inAppendixB,Menudefinitions.

DCS

DCSissetwithmenus10R-DCSand12T-DCS.ForacompletelistofavailableDCScodes,seeTableC.1,“DCSCodes”inAppendixC,Technicalspecifications.


Procedure8.2.DCSsetuphow-to1. Pressthe keytoenterthemenu.2. Enter onthenumerickeypadtogettoreceiverDCS.3. Press toselect.4. ScrolltothedesiredDCScodeonthenumerickeypad.5. Press toconfirmandsave.6. Enter onthenumerickeypadtogototransmitterDCS.7. Press toselect.8. ScrolltothedesiredDCScodeonthenumerickeypad.Makesureit'sthesamecodeas

thatyouenteredforreceiverDCS.9. Press toconfirmandsave.10. Press toexitthemenusystem.

ToturnDCSoff,followthesameprocedurebutsetittooffwiththe keyinsteadofselectingaDCScode.Formoreinformationseethesectioncalled“10R-DCS-ReceiverDCS”andthesectioncalled“12T-DCS-TransmitterDCS”inAppendixB,Menudefinitions.


UV-25X2/UV-25X4/UV-50X2

1000Hz,1450Hz,1750Hz,2100HzTone-burstTosendoutatone-burst;yousimultaneouslywillpressthePTTkeywhileholdingdowntheCallbutton.ToconfigurewhichToneBurstistransmittedselecttheToneBurstdesiredfromMenuItem50(REP-S)

PTT+ =SelectedToneBurst(SelectableinMenu50:REP-S)


PartIII.How-toandsetupguides.Partthreecovers isacollectionofhow-todocumentstohelpyousetupyour

radioforspecificworkingenvironments.

CHAPTER7REPEATERS

CHAPTER8APPLICATIONSPECIFICSETUPCHAPTER9CUSTOMIZATION


UV-25X2/UV-25X4/UV-50X2

Chapter7.-RepeatersAradiorepeaterisanautomatedtransceiverinafixedlocation.Usuallymountedhighuponhilltopsorontallbuildings,butsometimestheyoperatewithinbuildingsforinternaluse.Arepeatertakesonesignalandrelaysit,usuallyafteramplifyingitbyordersofmagnitude.Whetheryou'reacommercial(businessorgovernment)useroranamateurradiooperator,chancesareyou'llbedealingwitharepeatersystemsoonerorlater.Tofindoutwhatsettingstousetouseyourlocalrepeater,askyouremployerorsomeoneatyourlocalamateurradioorganizationfordetails.Acommontypeof repeater is theduplex repeater. Inaduplex repeater system, therepeatertransmitsandreceivessimultaneously,butondifferentfrequencies.Toutilizethis typeofrepeater,your radiohas tobecapableof transmittingandreceivingondifferentfrequenciesonthesamememorychannel.Howyouusethiskindofrepeaterisbysettingthereceivefrequencyofyourradiototheoutputfrequencyoftherepeater,andthetransmitfrequencyofyourradiototheinputfrequencyoftherepeater.Oftentimes,thetransmit frequencytouse isn'texplicitlystated,but ratheranoffset relativeyourreceivefrequencyisspecified.Thisisconvenientlybyspecifyingoffsetratherthantransmitfrequency.(Example145.000MHzReceivewith.600MHztransmitisatransmitChannelof145.600MHz)


SFT-DandOFFSETonlyfunctioninVFOmode.MRmodeusesandstorestheRXfrequencyandtheTXfrequencydirectly(seeChapter4)

Thefollowinginstructionsassumethatyouknowwhattransmitandreceivefrequenciesyourrepeateremploys,andthatyou'reauthorizedtouseit.

1. SettheradiotoFrequency(VFO)modewiththe key.2. Entertherepeater’soutput(yourreceiving)frequencybyeitherusingthe and

keys,orbyenteringitdirectlyonthenumericalkeypad.3. Pressthe keytoenterthemenu.4. EnterMenu47togettofrequencyoffset.5. Press keytoselect.6. Usethe and keysandthenumericalkeypadtoenterthespecifiedfrequencyoffset.

Seethesectioncalled“26OFFSET-Frequencyshiftamount”fordetails.7. Press toconfirmandsave.8. EnterMenu46onthenumerickeypadtogettooffsetdirection.9. Usethe and keystoselect+(positive)or-(negative)offset.10. Press toconfirmandsave.


UV-25X2/UV-25X4/UV-50X2

11. Optional:a. Savetomemory,seeChapter4fordetails.b. SetupCTCSS;seethesectioncalled“CTCSS”fordetails.

12. Press toexitthemenu.Ifeverythingwentwell,youshouldbeabletomakeatestcallthroughtherepeater.Ifyou'reexperiencingproblemsmakingaconnectiontotherepeater,checkyoursettingsand/orgothroughtheprocedureagain.Ifyou'restillunabletomakeaconnection,contacttheperson inchargeoftheradiosystemwithyouremployeroryourlocalamateurradioclub,asthecasemaybe.

Ifyouforsomereasonwanttolistentotherepeater'sinputfrequencyinstead,press momentarilyandyou'llreverseyourtransmitandreceivefrequencies.ThisisindicatedintheLCDontheradiowithanRinthetoprow,nexttothe+and-fortheoffsetdirection.


Chapter8.-ApplicationSpecificSetupCommercialRadioSetupPLMRusersintheUnitedStatesaremandatedtomoveto12.5kHznarrowbandcommunicationinthe150-174MHzVHFand421-512MHzUHFbandsbyJanuary1,2013.FollowtheseinstructionstosetyourradiotoNarrowbandmode:

ThissectionisonlytrueforVFOmode.WNissettableonaperchannelbasisandhastobesetpriortostoringachannel.Onceachannelhasbeenprogrammed,thechannelmustbedeletedandreprogrammedtochangetheWNsetting.

1. Pressthe keytoenterfrequencymode.2. Pressthe keytoenterthemenu.3. EnterMenuItem7onthenumericalkeypad.4. Press toselect.5. Usethe and keystoselectbetweenWideandNarrow("Narr").6. Press toconfirmandsave7. Press toexitthemenu.


UV-25X2/UV-25X4/UV-50X2

Tofindoutwhatotherchannelsandfeaturesneeded,pleasecontactyouremployer.

AmateurRadioSetupIncontrastwithCommercialradiooperators,whooftenneedveryspecificrequirementstobecompatiblewithaveryspecificradioimplementation,Amateurradiooperatorstendtoneedthebroadestpossiblesettingsinordertobecompatiblewithasmanysystemsaspossible.Thisbasicallyimpliesturningallthefancyfeaturesthatyoutypicallymightneedforacommercialsetupoff.InatypicalAmateurradiosetupthefollowingsettingswouldberecommended:

• SetbandwidthtoWide(menuitem7).• TurnReceiveDCSandCTCSSoff(menuitems10through11).• TurnoffSquelchTailElimination(STE)features(menuitems53through54).• Turnrogerbeep(ROGER)off(menuitem25).

ForfurtherinformationseeAppendixA,Menudefinitions

FRS,GMRS,MURS,PMR446


YoumaybetemptedtouseFRS,GMRS,MURS(intheUSA)orPMR446(inEurope)frequencies.Donotehoweverthattherearerestrictionsonthesebandsthatmakethistransceiverillegalforuse.


UV-25X2/UV-25X4/UV-50X2

Chapter9.-Customization

DisplayTheLCDontheBTECHMobilesarebacklitmulti-colorLEDs,thecolorofwhichcanbepre-setfromthemenusystemintoavarietyofcolors.Tochangethecolors,followthesesteps:

1. Pressthe keytoenterthemenu.2. Enteroneofthefollowingonyournumerickeypad:

a. 33tochangethemainLCDtextcolor.b. 34tochangethemainLCDbackgroundcolor.c. 35tochangethemenuLCDtextcolor.d. 36tochangethemenuLCDbackgroundcolor.e. 37tochangethestatusbaricon’scolor.f. 38tochangethestatusbar(topbar)backgroundcolor.g. 39tochangethesignalbaricon’scolor.h. 40tochangethesignalbar(bottombar)backgroundcolor.i. 41tochangethereceivingchanneltextcolor.


j. 42tochangethetransmittingchanneltextcolor.3. Press keytoselect.4. Usethe and keystopickthedesiredcolor.5. Press toconfirmandsave.6. Press toexitthemenu.


UV-25X2/UV-25X4/UV-50X2

SyncDisplayChannelsTosyncchannelsonthedisplay(simultaneouslydisplaychannelnameandfrequency),followthesesteps:

1. Pressthe keytoenterthemenu.2. Enter32onyournumerickeypadtocometotheSyncMenu3. Press keytoselect.4. Usethe and keystoselect:

a. AB–TosyncA/BDisplaysb. CD–TosyncC/DDisplaysc. AB+CD–TosyncbothA/BandC/DDisplays

5. Press toconfirmandsave.6. Press toexitthemenu.

UseSYNCinConjunctionwithMenus27,28,29&30tocoordinatewhatisdisplayedoneachline(Name,Frequency,orChannelNumber)–SeeAppendixBMenudefinitions


UV-25X2/UV-25X4/UV-50X2

AppendixA.- Menudefinitions0 TMR TransmitMultiReceive M+A Thismodeselectswhatdisplaysaremonitoredin

thebackgroundbesidestheprimaryselectedchannel.Youcanmixandmatchbetweenallorpartialchannelstoallowdual,tri,andquadwatchSelectedMemory+Displays(A,B,C,D)M=SelectedMemoryA=DisplayAB=DisplayBC=DisplayCD=DisplayD

M+BM+CM+DM+A+BM+A+CM+A+DM+B+CM+B+DM+C+DM+A+B+CM+A+B+DM+A+C+DM+B+C+DA+B+C+D

1 STEP FrequencyStepSizeSetup 2.5to25.kHz 2.5,5,6.25,10,12.5,25kHz2 SQL SquelchLevel 00>09 10squelchlevels

00=minimum/normallyopen3 TXP TransmitPower High FullPower

Low ReducedPower4 AUTOLK AutoKeypadLock ON KeypadAutoLockEnabled

OFF KeypadAutoLockDisabled


5 TOT TXTimeOutTimer 15>600secs 15secondsteps

6 APO AutoPowerOff 30,60>300 TimeSetthatradiowillPowerOffafterlastsignalreceived.minutes

OFF TurnoffAPOOption

7 WN Bandwidth Wideband 25.0kHz

Narrowband 12.5kHz

8 ABR UnusedSetting 9 BEEP KeypadVoicePrompt ON/OFF TurnON/OFFkeypadvoiceprompt10 R-DCS Receive-DigitalCoded

SquelchD023N>D754I SquelchopenswhenproperDCScodeisdetectedOFF NoDCScoderequired

11 R-CTCS Receive-AnalogToneSquelch67.0>254.1Hz SquelchopenswhenproperCTCSStonedetectedOFF NoCTCSStonerequired

12 T-DCS Transmit-DCSCode D023N>D754I TransmitsspecifiedcodeOFF NoDCScodetransmitted

13 T-CTCS Transmit-CTCSSCode 67.0>254.1Hz TransmitsspecifiedtoneOFF NoCTCSStonetransmitted


UV-25X2/UV-25X4/UV-50X2

14 DTMFST DetermineswhenDTMFcodesareheardthroughspeaker

OFF NoDTMFtoneheardDS-ST OnlymanuallykeyedDTMFcodesareheard

ANI-ST OnlyautomaticallykeyedDTMFcodesareheard

DT-ANI AllDTMFcodesareheard

15 BCL BusyChannelLockout ON Preventstransmitifactivesignalonthechannel

OFF Nolockout

16 SC-ADD AddScanChannel ON AddchanneltoscanlistOFF Removechannelfromscanlist

17 SC-REV ScanResumeMethod TO (TimeOperation)Scanstopswhensignaldetected.Thescanresumesafterapproximately5seconds(evenifthechannelisstillactive).

CO (CarrierOperation)Scanstopswhensignaldetected.Scanresumeswhensignaldisappears.

SE (SearchOperation)Scanstopswhensignaldetected.Scanningwillnotresume.

18 OPTSIG OptionalSignaling OFF NooptionalsignalingDTMF DTMFsignalingselected

2TONE 2TONEsignalingselected

5TONE 5TONEsignalingselected

19 SPMUTE SpeakerMuteSettings QT SquelchopensforCTCSS/DCStonesonly.


AND SquelchopenswhenCTCSS/DCStoneisrecognizedalongwiththeoptionalsignaling.

OR SquelchopenswheneithertheCTCSS/DCStoneORtheoptionalsignalingisrecognized.

20 PTT-ID PTTID-Whentosend OFF DonotsendBOT SendatBeginningofTransmissionEOT SendattheEndofTransmissionBOTH SendatbothBeginningandEnd

21 PTT-LT PTTID-TransmitDelay 0>30 SetDelayTimebeforetransmittingPTT-ID22 S-INFO AutoGroupDialing GroupSignalCode

Memory1>15Canonlybesetwithsoftware

23 EMC-TP AlarmMode ALARM TurnonAlarmsoundANI SendAlarmcodeandIDcodeBOTH BothoftheaboveOFF AlarmModeCompletelyDisabled

24 EMC-CH AlarmChannel 000>199 SpecifiedAlarmChannel

25 SIG-BP SignalBeep ON PagerRingatReceptionofMatching2Tone/5Tone/DTMF

OFF ToneOFF

26 CHNAME ChannelNameEdit InChannelMode,edittheCurrentName

27 CA-MDF ChannelA FREQ InChannelMode,displaytheselectedformatin


UV-25X2/UV-25X4/UV-50X2

DisplayMode CH displayA NAME

28 CB-MDF ChannelB FREQ InChannelMode,displaytheselectedformatindisplayBDisplayMode CH

NAME29 CC-MDF ChannelC FREQ InChannelMode,displaytheselectedformatin

displayCDisplayMode CH

NAME30 CD-MDF ChannelD FREQ InChannelMode,displaytheselectedformatin

displayDDisplayMode CH

NAME31 LANGUA Language English ScreenPromptsDisplay

Chinese32 SYNC DisplaySync OFF SeparateA/B/C/Dchanneldisplay.

AB SynchronizesdisplayAB,CD,orAB+CD

CD Thisallowstheupperdisplaytoshowchannelnamewhilethelowershowsthefrequency.Youcansyncthetop2,bottom2,orbothsectionssimultaneouslyAB+CD

33 MAINFC MAINLCDDisplay SelectColor BLACK,WHITE,RED,BLUE,GREEN,YELLOW,


ForegroundColor(Text) INDIGO,PURPLE,GRAY34 MAINBC MAINLCDDisplay SelectColor BLACK,WHITE,RED,BLUE,GREEN,YELLOW,

INDIGO,PURPLE,GRAYBackgroundColor35 MENUFC OnScreenMenu SelectColor BLACK,WHITE,RED,BLUE,GREEN,YELLOW,

INDIGO,PURPLE,GRAYForegroundColor(Text)36 MENUBC OnScreenMenu SelectColor BLACK,WHITE,RED,BLUE,GREEN,YELLOW,

INDIGO,PURPLE,GRAYBackgroundColor37 STA-FC Status(Top)BarDisplay SelectColor BLACK,WHITE,RED,BLUE,GREEN,YELLOW,

INDIGO,PURPLE,GRAYForegroundColor(Text)38 STA-BC Status(Top)BarDisplay SelectColor BLACK,WHITE,RED,BLUE,GREEN,YELLOW,

INDIGO,PURPLE,GRAYBackgroundColor

39 SIG-FC BottomBarDisplay SelectColor BLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAYForegroundColor(Text)

40 SIG-BC BottomBarDisplay SelectColor BLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAYBackgroundColor

41 RX-FC MainLCDReceivingColor SelectColor BLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAYForegroundColor(Text)

42 TX-FC MainLCDTXColor SelectColor BLACK,WHITE,RED,BLUE,GREEN,YELLOW,INDIGO,PURPLE,GRAYForegroundColor(Text)

43 TXDISP TransmitDisplay POWER DisplayPowerLevelonBottomGraphMIC-V DisplayMicAudioLevelonBottomGraph


UV-25X2/UV-25X4/UV-50X2

44 MEM-CH MemorizeChannel 000>199 Indicateschannelnumbertobestored.45 DEL-CH DeleteChannel 000>199 Indicateschannelnumbertobedeleted.46 SFT-D FrequencyShiftDirection OFF NoOffset(simplex)

+ Plusfrequencyshift- Minusfrequencyshift

47 OFFSET FrequencyShiftOffsetAmount00.00>69.99 FrequencyshiftinMHz

48 ANI ANIIDCode Canonlybesetwithsoftware

49 ANI-L ANILength 3,4,5 LengthofANIIDcode

50 REP-S RepeaterActivationTone 1000Hz1450Hz1750Hz2100Hz

Audibletoneforrepeateractivation

51 REP-M RepeaterForwardingMode(X-BandRepeaterwith2BTECHMobiles)–SeeDetailedPDFGuideat:baofengtech.com/support

OFF FunctionOFF

CARRI ForwardafterreceivingCarrierCTDCS ForwardafterreceivingcorrectCTDCS

TONE Forwardafterreceivingcorrectmonoaudio(Menu42)

DTMF ForwardafterreceivingassignedDTMFcode(ANI)

52 TMR-MR TMR-ReturnTimeDelaytoPrimaryChannel;SetsthePTTtothelastreceivedtransmissionchannel.Timedelayselectable

OFF FunctionOFF-TransmitsalwaysonPrimaryChannel

1>50seconds Thisisthedelaytimebeforereturningtotheprimarychannelaftersecondarysignalisclear.


53 STE SquelchTailElimination OFF FunctionOFFRequiresbothradioshavefunctionON.

ON Eliminatessquelchtailatendoftransmission.

54 RP-STE RepeaterSquelchTailElimination

OFF FunctionOFF

Requiresarepeaterusingthisfunction.

1>10 DelayTime

55 RPT-DL Repeatersquelchtaildelay. OFF FunctionOFF1>10 DelayTime

56 DTMF-G DTMFGain/ 0>60 0=LowestAudioGainAudioLevel 60=HighestGain

57 MIC-G MicrophoneGain/ 0>127 0=LowestAudioGainAudioLevel 127=HighestGain

58 SKIPTX QuadFrequencyOperation:Randomizetransmittingchannels-withanothercorrespondingmobileonthesame4channelstransmissionscanbespreadapartonthefourchannelsin2modes.

OFF SKIP1 Randomizesinbetweenafterbothtransmitting

andreceiving,Requiresbothareceivedandatransmissionbeforegoingtoanotherrandomfrequency

SKIP2 AlternatestransmittingonA,B,C,D-eachPTTPresstheradiowilltransmitonthenextchannelinorderoftheirdisplay(A-B-C-D-Repeat)

59 SC-MOD AutomaticScanResumeMethod

OFF ScanisdisabledwithaRadioReboot,orbyPressingaMenuKey/PTT

PTT-SC Scanningwillresumeaftertransmitting(orother


UV-25X2/UV-25X4/UV-50X2

MenuOperations)MEM-SC ScanMemoryduringRadioReboot:Ifscanning

wasactivewhentheradiowaspowereddown,theradiowilresumescanningonrestart.(ScanningalsoresumesaftertransmittingorotherMenuOperations)

PON-SC PowerOnScan:Theradiowillstartscanninguponturningon-nomatterwhatstateitwasinwhenpoweringdown.AlsotheradiowillscanafterMenuoperationsorTransmitting

60 RESET InitializetoFactoryDefaults VFO MenuInitialization

ALL MenuandChannelInitialization


UV-25X2/UV-25X4/UV-50X2

AppendixB.- TechnicalspecificationsGeneral

Specification ValueFrequencyRange(MHz) 65-108(Rxonly):UV-25X2,UV-50X2,UV-25X4

136-174(Rx/Tx):UV-25X2,UV-50X2,UV-25X4

220-260(Rx/Tx)US/Asia:UV-25X4

350-390(Rx/Tx)EU/Asia:UV-25X4

400-520(Rx/Tx):UV-25X2,UV-50X2,UV-25X4

Memorychannels 200Frequencystability 2.5ppmFrequencystep(kHz) 2.5K/5.0K/6.25K/10.0K/12.5K/25.0KSquelchSetup CARRIER/CTCSS/DCS/5Tone/2TONE/DTMFAntennaimpedance 50OhmOperatingtemperature -20°Cto+60°CSupplyvoltage 13.8VDC±15%: 20APeakUV-50X2---7APeakUV-25X2,UV-25X4

Dimension UV-25X2/UV-25X4:4(W)x1.85(H)x5(D)in;1lb

UV-50X2:5.7(W)x1.85(H)x7.5(D)in;2.2lb

OperatingTemperature -5°F-+140°F


ReceiverReceiverspecifications

Broadband Narrow band Sensitivity ≤0.25µV ≤0.35µV Channel choice ≥70dB ≥60dB Intermodulation ≥:65dB ≥60dB Spurious Rejection ≥70dB ≥70dB Audio response +1~-3dB (0.3-3KHz) +1~-3dB (0.3~2.55KHz) Signal to noise ratio ≥45dB ≥40dB Audio Distortion ≤5% Audio output power ≥2W@10%

Transmit

Broadband Narrow band

Output power 25W (20W) / 10W (7W) (VHF (UHF)) - UV-25X2/UV-25X4 50W/ 10W - UV-50X2

Modulation Mode 16K F3E 11K F3E Channel Power ≥70dB ≥60B Signal to noise ratio ≥40dB ≥36dB Parasitic harmonic ≥60dB ≥60dB Audio response +1--3dB (0.3-3KHz) +1--3dB (0.3-2.55KHz) Audio distortion ≤5%


UV-25X2/UV-25X4/UV-50X2

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