Uniden GMR2638-2CK User Manual

GMR2638-2CK
CHARGE
*Range may vary depending on environmental and/or topographical conditions.
• 15GMRS/7FRSChannels
• 121SubCodes
 (CTCSSToneandDCSCode)
• Upto26MileRange*
• InternalVOXCircuitry
• 10SelectableCallToneAlerts
• BacklitLCDDisplay
• OptionalHeadsetAccessories
• HeadsetJack
1 Antenna
2 PTT(Push-To-Talk)Button
3 MonitorButton
4 ChannelUp/DownButton
5 Call/LockButton
6 Speaker
7 HeadsetJack
8 Menu/PowerButton
9 VolumeUp/DownButton
10 Microphone
11 BatteryLevelMeter
12 ReceiveIndicator
13 CallIndicator
14 ScanIndicator
15 ChannelIndicator
16 HiPowerIndicator
17 LowPowerIndicator
18 TransmitIndicator
19 VolumeSettingIndicator
20 KeypadLockIndicator
21 VOXIndicator
22 SubCodeIndicator
23 ChargingContacts
CongratulationsonyourpurchaseoftheUniden
GMR2638-2CK(GeneralMobileRadioService)
radio.Thislightweight,palm-sized,radioisastate-
of-the-artdevice,equippedwithmanyvaluable
features.Useitatsportingevents,tostayin
contactwithfamilyandfriends,hiking,skiing,
outdoors,orinaneighborhoodwatchforvital
communication.
PACKAGE CONTENTS
Yourpackagecontainstworadios,tworechargeable
NiMHbatterypacks,oneACadapter,onecharging
cradle,twobeltclipsandthisreferenceguide.You
canoperateeachunitusingtherechargeableNiMH
batterypackor3AAAalkalinebatteries(not
included).Toorderthefollowingoptional
accessories,visitourwebsiteatwww.uniden.com
orcall1-800-554-3988duringregularbusiness
hours..
• NiMHBatteryPack-#BT-1028orBP-1028
• ChargingCradle-#RC-1287
• ACAdapter-#AD-0001
GMRS LICENSE












INSTALL THE BATTERY
EachradiousesasuppliedNiMHbatterypackor
3AAAalkalinebatteries(notincluded).
ToinstalltheNiMHbatterypack:
1)MakesureyourradioisOFF.
2)Removethebatterycompartmentdoorby
pressingthetabatthebottomofthe
compartmentdoor,andremovethecover.
3)InstalltheNiMHbatterypackintothebattery
compartment.Becertaintofollowthe
instructionswrittenonthelabelonthebattery
pack.Installingthebatterypackincorrectlywill
preventtheunitfromoperating.
4)Replacethebatterycompartmentdoor.
USING THE RADIO
• RogerBeep
• BatteryCharger
• BatteryLevelMeter
• ChannelMonitor
• ChannelScan
• KeypadLock
• 2BeltClips
BATTERY LEVEL AND LOW
BATTERY ALERT
Thisunithasabatterylevelmeteronthedisplayto
indicatethestatusofthebatteries.Whenthe
batteryintheunitislow,thebatterylevelmeter
icon flashes.RechargetheNiMHbattery
packimmediatelyorifyouareusingthealkaline
batteries,youmustreplacethealkalinebatteriesin
ordertocontinueusingtheradio.
 To avoid the risk of personal injury or
property damage from fire or electrical shock, only
use the Uniden accessories specifically designated
for this product.
GMR2638-2CK RADIO
CHARGING THE RADIO
IfyouusetherechargeableNiMHbatterypack,two
radioscanbechargeddirectlyorbyusingthe
suppliedchargingcradle.

1)Connectthechargingcradle(#RC-1287)toa
standard120VACwalloutlet.
2)Setthechargingcradleonthedeskortabletop,
andplacetheradiointhechargingcradlewith
thekeypadfacingforward.
3)MakesurethattheLEDilluminates.Chargethe
batterypackfor16hoursandremovetheradio
fromthechargingcradleaftercharging.

• Use only the supplied battery and AC adapter or
approved accessories from Uniden.
• Charge time may vary depending on the battery
life remaining.
• Do not recharge alkaline batteries. Doing so can
create a safety hazard or damage the radio.
• For fastest charging, turn off the radio before
charging.
• Battery must be installed for operation, even from
external power.
• If battery Power is low, you cannot operate the
radio even using external power. Allow the
batteries to charge before using. If you try to
transmit while power is low, the radio will
automatically turn off.
Inordertogetthemostoutofyournewradio,read
thisreferenceguidecompletelybeforeattemptingto
operatetheunit.


1)PressandholdtheMENU/
keytoturnthe
radioON,andincreasethespeakervolumeby
pressingVOL▲.Todecreasethevolume,press
VOL▼.
2)PressandholdtheMENU/
keyagaintoturn
theradioOFF.

Yourradioemitsabeepeachtimeoneofthekeys
(exceptforthePTTbuttonandCALL/LOCKkey)is
pressed.ToturnthissoundOFF,pressandholdthe
CALL/LOCKkeywhileturningONtheradio.Repeat
thissteptoturnthesoundON.

Yourradiohas22channelsand121Subcodesyou
canusetotalktoothers.Inordertospeakto
someone,eachofyoumustbesettothesame
channelandSubcode.
Withtheradioin"Normal"operatingmodepress
CH▲/CH▼ toincreaseordecreasethechannel
number.Thechannelnumberblinks.Pressthe
MENU/
keytosetthechannel.
 Channels 1-7 have an typical range of up to
26 miles. Channels 8-14 have an typical range of
up to 5 miles. Channels 15-22 have an typical
range of up to 26 miles. You can know which GMRS
or FRS channel is active by the icon.  icon is
displayed while scanning GMRS channels, and the
 icon is displayed while scanning FRS channels.

Totalktoothersusingtheradio:
1)PressandholdthePTTbuttonandspeakina
clear,normalvoiceabout2-3inchesawayfrom
themicrophone.Whileyouaretransmitting,the
iconappearsonthedisplay.Toavoidcutting
offthefirstpartofyourtransmission,pause
slightlyafterpressingthePTTbuttonbeforeyou
starttalking.
2)Whenyouhavefinishedspeaking,releasethe
PTTbutton.Youcannowreceiveincomingcalls.
Whilereceiving,the
iconappearsonthe
display.

Yourradioallowsyoutolistenforweaksignalson
thecurrentchannelatthepressofakey.
ToturnONtheMonitorMode:
• Forbrieflistening,pressMONbutton.The

iconblinks.
• PressandholdMONbuttonfor2secondsuntil
twobeepssoundforcontinuouslistening.The
receivercircuitstaysopen,lettingboththenoise
andweaksignalstobeheard.
ToturnOFFMonitorMode:
• PressMONbuttontoreturnto"Normal"mode,
andthe
iconstopsblinkinganddisappears.

UseMENU/
toaccessyourradio'sadvanced
functions.

Normal
Normal
VOX Level
Call Tone
1-10
OFF, 1-5
Sub Code
Scan
OFF, 1-121
ON/OFF
1)PressMENU/ toenterthemenus.
2)AdditionalpressesofMENU/
advanceyou
throughthemenusuntilexitingto"Normal"
operatingmode.
3)OthermethodsofexitingtheMenufunctionare:
a.PressandholdMENU/
again.
b.PressanykeyexceptCH▲/CH▼orVOL▲
/VOL▼andwait10secondsuntiltheunit
returnsto“Normal”mode.
Sub Code Menu
Eachofthechannels1-22mayhaveanyoneof
thecodes,OFF,or1-121selected.Code(OFF)
indicatesnoSubcodeselectedandyourradiocan
receiveasignalregardlessofthecodesettingsof
thetransmittingradio.
1)PressMENU/
toenterMenumode.The
subcodeindicatorflashes.
2)PressCH▲/CH▼keytoincreaseor
decreasethecodenumberdisplayed.Youcan
alsoselect(OFF)atthisstage.
3)PressMENU/
toexitMenumode.
4)PressanykeyotherthanCH▲/CH▼orVOL
▲/VOL▼andtheradioreturnstoIdlemode
in10seconds.
Scan Menu
Yourradiohasachannelscanfeaturethatallows
youtoeasilyscanall22channels.Whenanactive
channelisdetected,theradiopausesonthat
channeluntilthechannelisclear.Then,aftera2
seconddelay,theradiocontinuesscanning.
PressingthePTTbuttonwhilethescanispaused
onachannelallowsyoutotransmitonthat
channel.
ToturnONchannelscan:
1)PressMENU/
repeatedlyuntilthe
iconandblink.
2. PressCH▲/CH▼ toselectScanmodeand
pressMENU/
tostartit.
ToturnOFFchannelscan:
1)PressMENU/
whenthescansettingis.
2)PressanykeyotherthanCH▲/CH▼or
VOL▲/VOL▼toturnchannelscanoffin10
seconds.
Voice Operated Transmission Menu
YourradioisequippedwithauserselectableVoice
OperatedTransmitter(VOX)thatcanbeusedfor
automaticvoicetransmissions.TheVOXfeatureis
designedtobeusedwithorwithoutaheadsetwith
amicrophone.Transmissionisinitiatedbyspeaking
intothemicrophoneinsteadofpressingPTT.
ToselectVOXlevel:
1)PressMENU/
repeatedlyuntiltheicon
andtheVOXsensitivitylevel ( OFF , 1-5 )blink .
2)PressCH▲/CH▼tochangetheVOX
sensitivitylevels.Uselevel1forincreased
sensitivitytovoiceinnormallyquietenvironments ,
anduseahigherleveltoreduceundesired
activationinverynoisyenvironments.
Call Tone Menu
Yourradioisequippedwith10selectablecalltones
thataretransmittedwhenCALL/LOCKispressed.
Toselectacalltone:
1)PressMENU/
repeatedlyuntiltheCALLicon
andCall Tonestarttoblinkonthedisplay.
2)PressCH▲/CH▼tomovethroughthe
availablecalltones.Eachtonewillbeheard
throughthespeakerbutwillnotbetransmitted.
Cyclethroughthesetonesandstayonthetone
youwanttoselect.
3)ExitCallTonetosettheselectedtone.

Tolockthekeypad:
1)PressandholdCALL/LOCK;
displays.
ThesefunctionsarenotaffectedbyKeyLock:
• Volume adjust
• Call tone transmission
• Enter monitor mode
• PTT transmission
• Power off
Tounlockthekeypad:
1)PressandholdCALL/LOCKagain;

disappears.

Yourradiohasacircuitdesignedtodramatically
extendthelifeofthebatteries.Ifthereisno
transmissionoranincomingcallwithin3seconds,
yourradioswitchestoPowerSavemode.Theradio
isstillabletoreceivetransmissionsinthismode.

TheLCDBacklightautomaticallyturnsONwhenany
key(exceptthePTTbutton)ispressed.TheLCD
displayilluminatesfor10secondsbeforeturning
OFF.

RogerBeepisaBEEPthatissenttonotifytheendof
transmission(bothPTTandVOXtransmission).
RogerBeepcanbeheardthroughthespeakerwhen
bothRogerBeepandKeyBeeparesettoON.When
RogerBeepissettoONandKeyBeepissettoOFF,
RogerBeepwillnotbeheardfromthespeakerbutit
willbetransmittedtoyourparty.WhenRogerBeepis
settoOFF,RogerBeepwillneitherbeheardnor
transmitted.
TochangeRogerBeepsetting:
PressandholdVOL▲whileturningtheradioonand
off.IfRogerBeepisON,itwillbeturnedoff;ifitis
OFF,itwillbeturnedon.
U01UT062ZZA(0)
English

Uniden GMR2638-2CK Specifications

General

Number of Channels	22
Power Output	2 Watts
Range	Up to 26 miles
Battery Life	Up to 10 hours
Weather Radio	Yes
Privacy Codes	121
NOAA Weather Alert	Yes
Call Tones	10
VOX	Yes
Type	GMRS
Frequency Range	462-467 MHz
Battery Type	Rechargeable NiMH
Water Resistance	IPX4

Summary

GMR2638-2CK Radio Setup Guide

Package Contents and GMRS Licensing

Details the radio's package contents and explains GMRS licensing requirements for legal operation.

Battery Installation and Charging

Provides instructions for installing NiMH or alkaline batteries and the charging process.

Battery Level and Low Battery Alerts

Explains the battery level meter and how to respond to the low battery indicator.

Operating Your GMR2638-2CK Radio

Basic Operation: Power, Volume, and Channel Selection

Covers powering the radio on/off, adjusting speaker volume, and selecting channels.

Transmission, Reception, and Monitor Mode

Guides on how to talk, receive, and use the monitor mode for weak signals.

Advanced Functions and Features

Introduces menus for Sub Code, Scan, VOX, Call Tone, Key Lock, Power Save, Backlight, and Roger Beep.

Technical Specifications and Data

Radio Specifications Overview

Lists key specifications including channels, frequencies, power source, range, and battery life.

Frequency and CTCSS Code Charts

Provides detailed charts mapping channels to frequencies and CTCSS codes.

Important Safety, Regulatory, and Warranty Information

Regulatory Compliance and Recycling

Covers FCC rules, RBRC battery recycling, and other regulatory compliance details.

Care, Safety, and RF Exposure Guidelines

Provides essential information on radio care, safe handling, and RF exposure compliance.

Three Year Limited Warranty Details

Outlines the terms, duration, and procedure for claiming the product's limited warranty.