GME TX670 User manual

TX670 Instruction Manual Page 1
TX670
POCKET SIZE
2 WATT HANDHELD
UHF CB RADIO
INSTRUCTION MANUAL

Page 2 Instruction Manual TX670
WARNING: SAFETY INFORMATION
The TX670 is a radio frequency transmitting device.
 •Whentransmitting,keeptheantennamorethan25mm
fromanypartoftheheadorbody.
 •Donottransmitnearelectricalblastingequipmentorin
explosiveatmospheres.
 •Donotallowchildrentooperatearadiotransmitter
unsupervised.
CONTROLS............................3
LCDINDICATORS ..................4
POWERINGTHERADIO .........5
GENERALOPERATION...........7
PowerOn/Off....................7
AdjustingtheVolume........7
DisplayLighting.................7
Receiving signals ...............8
Transmitting ......................8
 DUP/MonitorKey...............9
Scan/MemoryKey ...........10
 Mode/Key-LockFunction. . 11
1. CTCSS Code Selection. . 12
 2.TransmitterPower ........13
3.VOXSettings................13
4.DualWatchSettings.....14
 5.Squelch Settings ..........15
6. RogerBeep
Tone Settings...............15
7. ButtonBeep
Tone Setting ................16
8. CallAlarmSelection....16
CTCSSTONEFREQUENCIES ...17
CHANNEL
FREQUENCYMHz ...............18
SPECIFICATIONS .................19
WARRANTY ............ backpage
ACCESSORIES
Supplied
•TX6702/1WattUHF
HandheldRadiowith
flexibleantenna.
•3rechargeableAAbatteries
•240VACadapter
•Instruction manual
CONTENTS
Optional
•Speakermicrophone
•Hands-freeearmicrophone
•Necklanyard
•Vehiclecigarettelighter
tricklecharger.
•Leather case

TX670 Instruction Manual Page 3
CONTROLS
1 BatteryCompartment
2 Duplex/MonitorKey
3 BeltClip
4 Push-To-Talk(PTT)Switch
5 Antenna
6 IndicatorLED
7 VolumeOn/Off
8 ExternalSpeaker/Mic
9 LCDDisplay
10 Scan/Memory
11 ChannelUp
12 Microphone
13 Speaker
14 ChannelDown
15 Mode/LockKey
1
2
34
5
6
7
8
9
12
10
11
13
15
14

Page 4 Instruction Manual TX670
LCD INDICATORS
1Receiver Busy Icon: Appearswhenreceiving.
2Transmit Icon: Appearswhentransmitting.
3Memory Icon: Appearswhentheselectedchannelis
stored in the Scan memory.
4Scan Indicator Icon: AppearswhenSCANisenabledand
the radio is scanning.
5Button Beep Tone Icon: Appearswhenthebuttonbeep
confirmation tone is selected.
6Roger-Beep Tone Icon: AppearswhentheRoger-Beep
toneisenabled.
7Battery Level Icon: Indicatesbatterychargelevel.Flashes
whenbatteryisalmostempty.
8 Dual Watch Icon:AppearswhenDualWatchmodeisactive.
9High Power Icon: AppearswhenHightransmitterpower
is selected.
10 Duplex Icon: IndicatesthatDuplexcommunicationhas
beenenabled.
11 Key-Lock Icon: Appearswhenthekeypadislocked.
12 Monitor Icon: AppearswhenMonitorfunctionisactivated.
13 Power Save Icon: Appearswhentheradioisinthepower
save mode.
1 2 3 4 56 7
8
10
11
1213141516
9

TX670 Instruction Manual Page 5
14 Voice Activated Transmission (VOX) Icon: Appearswhen
theVOXmodeisactivated.
15 CTCSS Tone: DisplaystheselectedCTCSStone
(from00-38)ontheselectedchannel.
16 Channel Display: Indicatesthechannelnumberinuse.
POWERING THE RADIO
YourTX670ispoweredbythreeAAbatteries(Ni-MH).Ifleft
unused,thebatterieswilldischargewithinafewmonths.If
youhavenotusedyourTX670forsometime,youwillneedto
rechargeyourbatteriesbeforeuse.
Installing the Batteries
Batteryinstallationismoreconvenientwhenthebeltclipis
removed.Todothis,releasethespringclipandslidethebelt
clipdownwardandawayfromtheradiobody.
1.Pressthecentretopareaofthebatterycoverand
slidedownwards.
2.Installthethreerechargeablebatteriesasindicatedonthe
batteryhousing,slide
coverbackinto
positionuntilit‘clicks’
intoplace.

Page 6 Instruction Manual TX670
Charging the Batteries
YourTX670issuppliedwithanACadapterwhichwillrecharge
afullydischargedsetof1500mAhbatteriestofullcapacityin
around15-16hours.
1.Plugthechargerintoastandard240VoltACoutlet.
2.Connectthechargertomic/chargesocketontheradio.
Battery Low Alert
Whenthebatteryiconblinksonthedisplay,thebatterylevelis
lowandthebatteriesshouldberechargedorreplaced.Ifthe
batteriesarenotcharged,anaudiotonewillthensoundto
warntheuserthatthebatteriesarealmostdischarged.
Battery Usage
Thetimetakentodischargethebatterieswilldependonhow
youusetheTX670.The1500mAhbatteriessuppliedare
powerfulenoughforafulldaysuseunderaverageconditions.
Conserving Battery Power
TheTX670hasbuilt-inpowersavingfeaturestohelpyouget
themaximumamountoftimebetweencharges.Ifyouneedto
operateyourTX670inasituationwhereyourequiremaximum
batterylife(e.g.aremotesitewherethereisnoconvenient
rechargingfacilitynearby)thefollowinghintscangreatly
reducetheamountofpowerdrawnfromthebatteries.
Standby Mode
TheTX670willautomaticallyenterthe‘Standby’modewhen
itisinactive(i.e.nottransmittingorreceivingsignals).Whilein
Standbymodeitwillstillcheckforincomingsignalsbutitwill
drawconsiderablylesspowerfromthebatteries.Assoonas
asignalisheardorthekeysarepressedtheTX670will‘wake
up’again.ThisStandbymodeisautomaticandbyitselfcan
extendthebatterylifebymanyhours.
Using CTCSS
Ifyouareexpectingtoreceivesignalsonabusychannel,you
canprogramthatchannelforCTCSSoperationandgetthe

TX670 Instruction Manual Page 7
otherpersontocallyouusingthesameCTCSStone.Yourradio
willthenremaininStandbyandignoreallothersignalsuntil
your selected CTCSS tone is received.
Scanning
TheTX670drawsmorepowerfromthebatterieswhen
scanningthanwhenmonitoringasinglechannel.Thisis
becauseitmust‘wakeup’moreoftentomonitoreachchannel
foractivity.Youcanlengthenthebatterylifebyavoidingany
unnecessaryscanning.Inaddition,scanningincreasesthe
chanceofndingasignaltherebykeepingthereceiver‘awake’
andtheSquelchopenmoreoften.
Low Transmit Power Settings
Thetransmitterhasbothhighandlowpowersettings.Ifyou
areonlyoperatingovershortdistances,areinareasonably
highlocationorareclosetoalocalrepeater,tryusingthe
Lowtransmitterpowersetting.Thisreducesthetransmitter
powerfrom2Wattsto1Watteffectivelydoublingthetalk
timeavailable.
GENERAL OPERATION
Power On/Off
Rotate the Volume controlclockwisepastthe‘click’toturnthe
radio ON.Rotatethecontrolcounter-clockwisepasttheclickto
turn the radio OFF again.
Adjusting the Volume
Withtheunitpoweredon,rotatethe Volume controlclockwise
toincreasethevolumeandcounter-clockwisetodecrease
the volume.
Display Lighting
TheLCDbacklightingactivatesautomaticallywheneverakeyis
pressedandturnsoffautomaticallyafterabout5seconds.

Page 8 Instruction Manual TX670
Receiving signals
WhiletheTX670isnotreceivingsignals,itwillremaininthe
Standbymodetoconservebatterypower.
Whenasignalisreceived,theLEDindicatorontheupperedge
oftheradiowilllightgreenandthe iconwillappearonthe
display.Adjustthe Volume controlforacomfortable
listening level.
IftheincomingsignalisencodedwithaCTCSStonethat
matchestheonesetinyourradio,theLEDindicatorwilllight
orangeandyouwillbeabletohearthesignalinthespeaker.
IftheLEDindicatorlightsgreenandthe iconappears
butyoucannothearthesignal,itislikelythatyourradiohas
CTCSSenabledandtheincomingsignalisnotusingyour
selectedCTCSStone(see‘ModeSettings’formoredetailson
CTCSSsettings).
Ifnofurthersignalsarereceived,theunitwillrevertto
Standbymode.
Transmitting
Totransmit,pressandholdthePush-To-Talk( PTT )switch.The
otherradioyouaretalkingtomustbesettothesamechannel
(andCTCSScodeifapplicable).HoldtheTX670approximately
5to8cmsfromyourfacewiththeantennaverticalandspeak
intothebuilt-inmicrophone.
Whilethe
PTT switchispressed,theLEDindicatoronthe
upperedgeoftheradiowilllightredandthe iconwill
appearontheLCD.
Whenyouhavenishedspeaking,releasethe
PTT switchto
receiveincomingsignals(itisnotpossibletotransmitand
receiveatthesametime).Ifnofurthersignalsarereceived,the
unitwillreverttoStandbymode.
TIP: ThePTTswitchcanalsobeusedtotransmitaCallAlarm
melody.WhentheCallAlarmmelodyisenabled(seeMode
settingsformoredetailsontheCallAlarmsettings),pressing
the
PTT switchtwicequicklywillcallanotherpartyonthe
samechannelandplaytheCallAlarmmelodyintheirradio’s

TX670 Instruction Manual Page 9
speaker.Whenthishappens,the iconwillappearand
theLEDindicatorwilllightredforabout3seconds.Thecall
alarmcanonlybesentonceperminute.
Duplex/Monitor Key
TheDuplex/Monitorkeyisadualfunctionkeythatcontrols
boththeDuplexandMonitorfunctions.
DUP Key
DuplexoperationallowstheTX670totransmitonadifferent
frequencytothatwhichitreceives.Thisallowsoperation
throughrepeaterstationsinyourarea.Repeatersautomatically
re-transmityoursignaloveramuchwiderarea,providing
greatlyincreasedrange.TheDuplexmodeonlyworkson
channels1-8.WithDuplexselected,yourTX670actually
transmits 30 channels higher than it receives.
Channel
Selected 1 2 3 4 56 7 8
Receive
Channel 1 2 3 4 56 7 8
Transmit
Channel 31 32 33 34 35 36 37 38
ToswitchbetweenSimplexandDuplexmodes,selectaduplex
channel(1-8)thenbrieypressthe
DUP button.WhenDuplex
modeisselected,‘DUP’appearsonthedisplayon
that channel.
MON Key
ToopentheSquelch,pressandholdthe MON key.Thiswill
allowyoutocheckthecurrentchannelforactivitybefore
transmitting,particularlyifyouhaveCTCSSenabled.Whenthe
Squelchisopen,theLEDindicatorontheupperedgeofthe
radiowilllightgreen,the iconwillappearonthedisplay
andyouwillhearstaticorhissifthechannelisclear.Donot
transmit if you hear any conversations. Press and hold the
MON keyagaintoclosetheSquelch.

Page 10 Instruction Manual TX670
CTCSS
ToactivateordeactivateCTCSS,thecurrentchannelmusthave
a CTCSS code selected via the MODE key,(seeMODEkey
settingsformoredetails).
SCAN/Memory Key
TheSCANkeyisadualfunctionkeythatcontrolsbothScan
andMemoryFunctions.
Scanning Function
ChannelScanningallowsyoutomonitorchannelsthathave
beenincludedintheactivescanlist.Theactivescanlist
includesallchannelswhichdisplaytheicon‘
M ’ontheLCD.
Toenablechannelscanning,brieypressthe
SCAN key.‘SCAN’
willbedisplayedandtheradiowillshowrapidlychanging
channelnumbersasitscansthroughthechannels.While
scanning,brieypressthe or keystoselectthe
scan direction.
ToexittheScanmode,brieypressthe
SCAN keyagain.
TheTX670willreturntonormaloperationand‘SCAN’will
disappearfromthedisplay.
Scanning Features
•Ifasignalisreceived,thescanispaused,allowingyou
totransmitandreceiveonthatchannel.Theradiowill
automaticallyresumescanningafewsecondsafterthelast
receptionortransmission.
•Pressthe
PTT switchwhiletheunitisscanningtojumpto
thehomechannel(thehomechannelisthechannelthe
radiowasonatthetimescanningwasactivated).Youcan
thentransmitandreceiveonthatchannel.Theradiowill
automaticallyresumescanningafewsecondsafterthelast
receptionortransmission.
•
Whentheunithasstoppedonabusychannel,pressthe or
keysto‘skip’overthebusychannelandcontinuescanning.
TIP: TheScanmodewillreducetheoverallbatterylife
becausetheStandby(batterysaver)featureisoverridden.