Uniden GMR3740-3CK Owner's Manual

Uniden Two-Way Radios Owner's Manual - GMR3740-3CK.
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GMR3740-3CK

*Range may vary depending on environmental and/or 

topographical conditions.

• 15GMRS/7FRS

Channels

• 7WeatherChannels
• 121SubCodes

(CTCSSToneandDCS
Code)

• Upto37MileRange*
• InternalVOXCircuitry
• 10SelectableCallTone

Alerts

• BacklitLCDDisplay
• HeadsetJack
• BeltClips
• RogerBeep

1 Antenna

2 PTT(Push-To-Talk)Button

3 Call/LockButton

4 Menu/PowerKey

5 ChannelUp/DownKey

6 Weather/MonitorKey

7 Speaker

8 HeadsetJack/DC9V

9 VolumeUp/DownKey

10 Microphone

11 BatteryLevelMeter

12 ReceiveIndicator

13 CallIndicator

14 ScanIndicator

15 ChannelIndicator

16 HiPowerIndicator

17 LowPowerIndicator

18 TransmitIndicator

19 VolumeSettingIndicator

20 KeypadLockIndicator

21 VOXIndicator

22 WeatherIndicator

23 SubCodeIndicator

24 ChargingContacts

CongratulationsonyourpurchaseofaUniden

GMRS(GeneralMobileRadioService)radio.

Theselightweight,palm-sized,radiosarestate-of-

the-artdevices.TheGMR3740-3CKhasmanytop

features.Useitatsportingevents,tocontactfamily

andfriends,whilehiking,skiing,oroutdoors,orina

neighborhoodwatchforvitalcommunication.

PACKAGE CONTENTS

Yourpackagecontainsthreeradios,three

rechargeableNiMHbatterypacks,oneACadapter,

onechargingcradle,threebeltclips,andthis
referenceguide.ANiMHbatterypackor3optional
AAAalkalinebatteries(notincluded)powerseach
unit.
Toorderthefollowingoptionalaccessories,visitour
websiteatwww.uniden.comorcall1-800-554-3988
duringregularbusinesshours.

Use only Uniden 

accessories.
•NiMHBatteryPack-#BT-1028orBP-1028
•ChargingCradle-#RC-1291
•Headset-#ZA-133and#ZA-160
•ACAdapter-#PS-0007
•DCAdapter-#DC-1002
•CarabinerClip#TSTD0720002

GMRS LICENSE

The radio operates on the General Mobile Radio 
Service (GMRS) frequencies when using 
Channels 1-7 and channels 15-22. You must 
have a GMRS license issued by the Federal 
Communications Commission to legally use 
these channels. For licensing information and 
application forms, visit the FCC online at: www.
fcc.gov/wtb/uls or call the FCC hotline at  
1-800-418-3676. If you have any questions, you 
can contact the FCC direct at 1-888-225-5322.  
No license is required for operation on channels 
8-14 or operation on any channel in Canada.

INSTALL THE BATTERY

EachradiousesasuppliedNiMHbatterypackor
3AAAalkalinebatteries(notincluded).
ToinstalltheNiMHbatterypack:
1)MakesureyourradioisOFF.
2)Pressthetabatthebottomofthebattery

compartmentdoortoremovethecover.

3)InstalltheNiMHbatterypackintothebattery

compartment.Becertaintofollowthe
instructionswrittenonthelabelonthebattery
pack.Installingthebatterypackincorrectlywill
preventtheunitfromoperating.

4)Replacethebatterycompartmentdoor.

USING THE RADIO

• DualChargingCradle

withACAdapter

• RechargeableNiMH

BatteryPacks

• BatteryLevelMeter
• ChannelMonitor
• ChannelScan
• KeypadLock
• DC9VJack
• NOAAEmergency/

WeatherChannels

BATTERY LEVEL AND LOW 

BATTERY ALERT

Thisunithasabatterylevelmeteronthedisplayto
indicatethestatusofthebatteries.Whenthe
batteryintheunitislow,thebatterylevelmeter
icon

flashes.RechargetheNiMHbattery

packimmediatelyorifyouareusingalkaline
batteries,youmustreplacethealkalinebatteriesin
ordertocontinueusingtheradio.
Warning!Toavoidtheriskofpersonalinjuryor

propertydamagefromfireorelectricalshock,only

usetheUnidenaccessoriesspecificallydesignated

forthisproduct.

GMR3740-3CK RADIO

CHARGING THE RADIO

IfyouusetherechargeableNiMHbatterypack,the

radioscanbechargeddirectlyorbyusingthe

suppliedchargingcradle.

USING The RadIo
1)ConnecttheoptionalDCadapter(#DC-1002)to

DC9Vjackoftheradioandtoacigarettelighter

port.

2)Chargethebatterypackfor16hoursuntilthe

batteryindicatorstopsflashing.

USING The ChaRGING CRadle

1)ConnecttheACadapter(#PS-0007)toDC9V

jackandtoastandard120VACwalloutlet.

2)Setthechargingcradleonthedeskortabletop,

andplacetheradiointhechargingcradlewith

thekeypadfacingforward.

3)MakesurethattheLEDilluminates.Chargethe

batterypackfor16hoursandremovetheradio

fromthechargingcradleaftercharging.

Note:
• Forchargingbatteriesdirectlywithoutthecradle,

useonlythe#DC-1002CigaretteLighterAdapter

cord,availablefromwww.Uniden.com.Other

powercordscoulddamageyourradio.

• DC9Vjackoftheradioisforchargingonly.

Besuretoinstallthebatterybeforecharging.

• UseonlythesuppliedbatteryandACadapteror

approvedaccessoriesfromUniden.

• Chargetimemayvarydependingonthebattery

liferemaining.

• Donotrechargealkalinebatteries.Doingsocan

createasafetyhazardordamagetheradio.

• Forfastestcharging,turnofftheradiobefore

charging.

• Thebatterymustbeinstalledfortheunitto

operate,eveniftheunitisalsoconnectedto

externalpower.

Inordertogetthemostoutofyournewradio,read

thisreferenceguidecompletelybeforeattemptingto

operatetheunit.
TURNING The RadIo oN aNd  
adjUSTING The VolUMe
1)Pressandhold

MENU/ toturntheradioON,

andincreasethespeakervolumebypressing

VOL▲ .Todecreasethevolume,press

VOL  ▼.

2)Pressandhold

MENU/ againtoturntheradio

OFF.

adjUSTING The SoUNd (KeY BeepS)
Yourradioemitsabeepeachtimeoneofthekeys

(exceptforthe

PTTandCALL/LOCK)ispressed.

ToturnthissoundOFF,pressandhold

CALL/

LOCKwhileturningONtheradio.Repeatthisstep

toturnthesoundON.
ChooSING a ChaNNel
Yourradiohas22channelsand121Subcodesyou

canusetotalktoothers.Inordertospeakto

someone,eachofyoumustbesettothesame

channelandSubcode.
Tochooseachannel:
Withtheradioin"Normal"operatingmode,pressthe

CH▲/CH  ▼keytoincreaseordecreasethe

channelnumberdisplayed.

Note:Channels1-7haveatypicalrangeofupto30

miles.Channels8-14haveatypicalrangeofupto

5miles.Channels15-22haveatypicalrangeofup

to30miles.YoucanseewhichGMRSorFRS

channelisactivebytheicon.The

hiiconis

displayedwhilescanningGMRSchannels,andthe

loiconisdisplayedwhilescanningFRSchannels.

TalKING oN YoUR RadIo

Totalktoothersusingtheradio:
1)Pressandholdthe

PTTbuttonandspeakin

aclear,normalvoiceabout2-3inchesaway
fromthemicrophone.Whileyouare
transmitting,the

iconappearsonthe

display.Toavoidcuttingoffthefirstpartof
yourtransmission,pauseslightlyafter
pressingthe

PTTbuttonbeforeyoustart

talking.

2)Whenyouhavefinishedspeaking,release

the

PTTbutton.Youcannowreceive

incomingcalls.Whilereceiving,

displays.

MoNIToR Mode FeaTURe
Yourradioallowsyoutolistenforweaksignals

onthecurrentchannelatthepressofakey.
ToturnONMonitormode:
• Pressandhold

WX/MONfor2secondsuntil

twobeepssound.Thereceivercircuitstays

open,andbothnoiseandweaksignalscan

beheard.

ToturnOFFMonitormode:
• Pressandhold

WX/MONfor2secondsto

returnto"Normal"mode;the

iconstops

blinkinganddisappears.

adVaNCed FUNCTIoNS (MeNUS)
Use

MENU/ toaccessyourradio'sadvanced

functions.

Normal

Normal

VOX Level

Call Tone

1-10

OFF, 1-5

Sub Code

Scan

OFF, 1-121

ON/OFF

1)Press

MENU/ toenterthemenus.

2)Additionalpressesof

MENU/ advanceyou

throughthemenusuntilexitingto"Normal"

operatingmode.

3)OthermethodsofexitingtheMenufunction

are:

a.Pressandhold

MENU/ again.

b.Pressanykeyexcept

CH▲/CH▼orVOL

/

VOL▼andwait10secondsuntilthe

unitreturnsto“Normal”mode.

Call Tone

Yourradioisequippedwith10selectablecalltones

thataretransmittedwhen

CALL/LOCKispressed.

Toselectacalltone:
1)Press

MENU/ repeatedlyuntiltheCALLicon

andCallTonestarttoblinkonthedisplay.

2)Press

CH▲/CH▼tomovethroughthe

availablecalltones.Eachtonewillbeheard

throughthespeakerbutwillnotbetransmitted.

Cyclethroughthesetonesandstayonthetone

youwanttoselect.

3)ExitCallTonetosettheselectedtone.

KeY loCK

Tolockthekeypad:
1)Pressandhold

CALL/LOCK; displays.

ThesefunctionsarenotaffectedbyKeyLock:
• Volumeadjust
• Calltonetransmission
• Entermonitormode
• PTTtransmission
• Poweroff
Tounlockthekeypad:
1)Pressandhold

CALL/LOCKagain; 

disappears.

aUToMaTIC poWeR SaVe
Yourradiohasacircuitdesignedtodramatically

extendthelifeofthebatteries.Ifthereisno

transmissionoranincomingcallwithin3seconds,

yourradioswitchestoPowerSavemode.Theradio

isstillabletoreceivetransmissionsinthismode.
lCd BaCKlIGhT
TheLCDBacklightautomaticallyturnsONwhenany

key(exceptthe

PTTbutton)ispressed.TheLCD

displayilluminatesfor10secondsbeforeturning

OFF.
RoGeR Beep
RogerBeepisaBEEPthatissenttonotifytheendof

transmission(bothPTTandVOXtransmission).

RogerBeepcanbeheardthroughthespeakerwhen

bothRogerBeepandKeyBeeparesettoON.When

RogerBeepissettoONandKeyBeepissettoOFF,

RogerBeepwillnotbeheardfromthespeakerbutit

willbetransmittedtoyourparty.WhenRogerBeepis

settoOFF,RogerBeepwillneitherbeheardnor

transmitted.
TochangeRogerBeepsetting:
Pressandhold

VOL▲whileturningtheradioonand

off.IfRogerBeepisON,itwillbeturnedoff;ifitis

OFF,itwillbeturnedon.

• Ifbatterypowerislow,youcannotoperatethe

radioevenusingexternalpower.Allowthe

batteriestochargebeforeusing.Ifyoutryto

transmitwhilepowerislow,theradiowill

automaticallyturnoff.

Sub Code

Eachofthechannels1-22mayhaveanyoneof

thecodes,OFF,or1-121selected.Code

oF

(OFF)

indicatesnoSubcodeselectedandyourradio

canreceiveasignalregardlessofthecode

settingsofthetransmittingradio.
1)Press

MENU/ toenterMenumode.The

subcodeindicatorflashes.

2)Press

CH▲/CH▼keytoincreaseor

decreasethecodenumberdisplayed.You

canalsoselect

oF(OFF)atthisstage.

3)Press

MENU/ toexitMenumode.

4)Pressanykeyotherthan

CH▲/CH▼or

VOL▲/VOL▼andtheradioreturnstoIdle

modein10seconds.

Scan

Yourradiohasachannelscanfeaturethat

allowsyoutoeasilyscanall22channels.When

anactivechannelisdetected,theradiopauses

onthatchanneluntilthechannelisclear.Then,

aftera2seconddelay,theradiocontinues

scanning.Pressingthe

PTTbuttonwhilethe

scanispausedonachannelallowsyouto

transmitonthatchannel.
ToturnONchannelscan:
1)Press

MENU/ repeatedlyuntilthescan...

iconand

oFblink.

2. Press

CH▲/CH▼ toselectScanmode

andpress

MENU/ tostartit.

ToturnOFFchannelscan:
1)Press

MENU/ whenthescansettingisoF.

2)Pressanykeyotherthan

CH▲/CH▼or

VOL▲/VOL▼toturnchannelscanoffin

10seconds.

Voice Operated Transmission

Yourradioisequippedwithauserselectable

VoiceOperatedTransmitter(VOX)thatcanbe

usedforautomaticvoicetransmissions.The

VOXfeatureisdesignedtobeusedwithor

withoutaheadsetwithamicrophone.

Transmissionisinitiatedbyspeakingintothe

microphoneinsteadofpressing

PTT.

ToselectVOXlevel:
1)Press

MENU/ repeatedlyuntilthevoxicon

andtheVOXsensitivitylevel(OFF,1-5)blink.

2)Press

CH▲/CH▼tochangetheVOX

sensitivitylevels.Uselevel1forincreased

sensitivitytovoiceinnormallyquiet

environments,anduseahigherlevelto

reduceundesiredactivationinverynoisy

environments.

USING A HEADSET

Youcanuseaheadset(#ZA-133or#ZA-160)for

moreprivatecommunications.Touseaheadset,

lifttherubbercoverfromovertheheadsetjack,

thenplugintheheadset.
Important: Yourradioisnotweatherresistant

whenusingaheadsetjack.Whenyouremovethe

headset,besuretofullypressthejackcoverinto

placetorestoreitsweatherresistantcapability.

U01UT068DZZ(0)

English

CHARGE