GME TX670 User manual

2 watt handheld UHF CB radio
INSTRUCTION MANUAL

PA G E 2 I N S T R U C T I O N M A N UA L T X 6 7 0 T X 6 7 0 I N S T R U C T I O N M A N UA L PA G E 3
The TX670 is a radio 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.
CONTENT S
WARNING - SA FE T Y INFORMATION
IMPORTANT
ACCESSORIES
SUPPLIED
•TX6702/1wattUHF
handheldradiowithexible
antenna
•3.6VNi-MHrechargable
batterypack
•240VACadapter
•Instructionmanual
OPTIONAL
•Speakermicrophone
•Hands-freeearmicrophone
•Necklanyard
•Vehiclecigarettelighter
tricklecharger
•Leathercase
READ ALL INSTRUCTIONScarefullyandcompletelybefore
operatingyourradioandretainthismanualforfuturereference.
NEVERconnecttheradiotoapowersourceotherthanthe
suppliedbattery.Thismaydamageyourproduct.
DO NOTplaceyourradioinfrontofavehicleairbag.
DO NOTuseyourradiowithadamagedantenna.
DO NOT attempttomodifyyourradioinanyway.
ALWAYS chargeyourradioatnormalroomtemperature.
ALWAYSswitchoffyourradiowherenoticesrestricttheuse
oftwo-wayradioormobiletelephones.
ONLYuseGMEapprovedrechargeablebatterieswiththe
suppliedcharger.
AVOID exposingyourradiotowater.Itisnotwaterproof.
AVOIDstoringorchargingyourradioindirectsunlight.
AVOIDstoringorusingyourradiowheretemperatures
arebelow-20°Corabove+60°C.
IMPORTANT INFORMATION
CONCERNING UHF CB RADIO
 TheuseoftheCitizenBandradioserviceislicensedinAustraliaby
theACMARadiocommunications(CitizensBandRadioStations)
ClassLicenceandinNewZealandbytheMinistryofEconomic
DevelopmentNewZealand(MED).AGeneralUserRadioLicence
forCitizensBandradioandoperationissubjecttoconditions
containedinthoselicences.
 TheclasslicenceforusersandequipmentoperatingintheCB/PRS
477MHzbandhasbeenamended.Thisradiomeetsthenew80
channelstandard.
Insimpletermsthesameamountofspectrumisavailable;however,
radiotransceiverscannowoperateinanarrowerbandwidthand
henceuselessspectrum.Theseradiosaregenerallyreferredtoas
narrowbandor12.5kHzradios.Byusing12.5kHzchannelspacing
insteadof25kHz,the40channelsoriginallyallocatedcannowbe
IMPORTANTINFORMATION.........2
 PossibleIssues ........................4
TELEMETRYCHANNELS...............5
FEATURES...................................5
RADIOCONTROLS.......................6
 LCDDisplay ...........................7
POWERINGTHERADIO ...............8
GENERAL OPERATION...............10
 PowerOn/Off........................10
 AdjustingtheVolume ............10
 DisplayLighting ....................10
 ReceivingSignals ..................10
Transmitting..........................10
 Duplex/MonitorKey...............10
 Scan/MemoryKey.................13
 Mode/Key-LockFunction .......14
 1.CTCSSCodeSelection .......15
 2.TransmitterPower..............16
 3.VOXSettings.....................16
 4.DualWatchSettings ..........17
 5.SquelchSettings................18
 6.RogerBeepToneSettings..18
 7.ButtonBeepToneSetting ..18
 8.CallAlarmSelection .........19
UHFCBOPERATING
FREQUENCIES...........................20
CTCSSTONEFREQUENCIES.......22
SPECIFICATIONS .......................23
GMECONTRACTWARRANTY
AGAINSTDEFECTS ....................24

PAGE4 I N S T R U C T I O N M A N UA L T X 6 7 0 T X 6 7 0 I N S T R U C T I O N M A N UA L PA G E  5
TElEMETRY CHANNElS
ACMAregulationshaveallocatedchannels22and23fortelemetry
onlyapplicationsandhaveprohibitedthetransmissionofspeech
onthesechannels.ConsequentlytheTX670hasatransmit-inhibit
appliedtochannels22and23.
Intheeventthatadditionaltelemetry/telecommandchannelsare
approvedbytheACMA,thesechannelsshallbeaddedtothose
currentlylistedwherevoicetransmissionisinhibited.Currently
transmissionsonchannels61,62and63arealsoinhibitedand
thesechannelsarereservedforfutureallocation.
FEATURES
•Microprocessor Controlled Frequency Synthesiser:Allows
userprogrammablecontrolofscanning,channelmemoriesand
selectedfeatureoptions.
•
Programmable Scan Function:Scansupto80UHF
CBchannels.
•In-built CTCSS:UserselectableContinuousToneCoded
Squelchsystemforquietchanneloperation.
•2 watts/1 watt RF Power: Whentransmittingincloserange
youcanconservebatterypowerbyusingtheLowPowersetting.
•Individually Programmable Duplex Function: User
selectableforthoseindividualrepeaterchannelsinyourarea.
•Power-Save Feature: Sleepsduringperiodsofinactivity.
•Keypad Lock: Preventsaccidentalbuttonpresses.
•Backlit LCD: Fornightviewing.
•Calling Tone/Roger Beep: Alertsyoutoincomingcalls.
•Dual Watch: Monitorstwochannelssimultaneously.
•VOX: Voiceactivatedtransmitforhandsfreeoperation.
expandedto80channelstherebydoublingthechannelcapacity
andrelievingcongestionintheUHFCB/PRSband.
Original40channelwidebandRadioswillcontinuetooperateonthe
original40channels,howevertheywillnotbeabletoconverseonthe
newerchannels41–80.Thenewernarrowbandradioswillbeable
toconversewithallolder40channelwidebandradiosonallchannels
1to40aswellasthenewerchannelsallocatedfrom41to80.
 Themixingofnarrowbandandwidebandradiosinthesame
spectrumcancausesomepossibleoperatingissuesofinterference
andvaryinglevelsofreceivedvolume.
POSSIBLE ISSUES
Whenanewnarrowbandradioreceivesatransmissionfromanolder
widebandradiothespeechmaysoundloudanddistorted–simply
adjustyourradiovolumeforbestperformance.
Whenanolderwidebandradioreceivesasignalfromanew
narrowbandradio,thespeechmaysoundquiet-simplyadjustyour
radiovolumeforbestperformance.
Dependingonhowcloseyourreceivingradioistoanother
transmittingradio,therecanbeinterferencefromthetransmitting
radioifitisusingachanneladjacenttothechannelyouarelistening
to.Simplytrygoingupordownafewchannelsfromthecurrently
selectedchannel.
Theabovesituationsarenotafaultoftheradiobutasymptomof
operatingwidebandandnarrowbandradiosinthesamebandwidth.
Thispossibleinterferencewilldecreaseovertimeasthepopulationof
widebandradiosagesanddecreases.
FurtherinformationandupdatesareavailablefromtheAustralian
CommunicationsandMediaAuthority(ACMA)atwww.acma.
gov.auandtheMinistryofEconomicDevelopment(MED),Radio
SpectrumManagementatwww.rsm.govt.nz
TheACMAhasallocatedchannels5/35foremergencyuseonly.
Channel5istheprimarySimplexEmergencyChannel.Wherea
Channel5repeaterisavailable,youshouldselectDuplexonCH5.
NOTE: Channel35istheinputchannelfortheChannel5repeater
thereforeChannel35shouldalsonotbeusedforanythingotherthan
emergency transmissions.

PA G E 6 I N S T R U C T I O N M A N UA L T X 6 7 0 T X 6 7 0 I N S T R U C T I O N M A N UA L PA G E 7
RADIO CONTROlS LCD DISPLAY
Push-to-
talk(PTT)
Duplex/
Monitor
Battery/
Compartment
Belt
Clip
1 Receiver Busy Icon:
Appearswhenreceiving.
2
Transmit Icon:Appears
whentransmitting.
3
Memory Icon:Appears
whentheselectedchannel
is stored in the Scan
memory.
4 
Scan Indicator Icon:
AppearswhenSCANis
enabledandtheradiois
scanning.
5 
Button Beep Tone Icon:
Appearswhenthebutton
beepconrmationtoneis
selected.
6
Roger-Beep Tone Icon:
AppearswhentheRoger-
Beeptoneisenabled.
7
Battery Level Icon:
Indicatesbatterycharge
level.Flasheswhenbattery
isalmostempty.
8 
Dual Watch Icon:Appears
whenDualWatchmodeis
active.
9 High 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.
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.
12 3 4 5 6 7
8
10
11
1213141516
9
LCD
External
Speaker
Mic
Mic
LED
Antenna
Speaker
Mode/
LockKey
Scan/
Memory
Volume
On/Off
Channel
Up
Channel
Down
Duplex/
Monitor

T X 6 7 0 I N S T R U C T I O N M A N UA L PA G E  9
PAGE8I N S T R U C T I O N M A N U A L T X 6 7 0
POWERING THE R AD IO
YourTX670ispoweredbyaNi-MHrechargeablebatterypack.
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batterypack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rechargeablebatterypackinthedirection 
indicatedonthepackuntilit‘clicks’intoplace.
3. Replacethebatterycoverandbeltclip.
Charging the Batteries
YourTX670issuppliedwithanACadapterwhichwillrecharge
afullydischargedbatterypack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batterypacksuppliedis
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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.
Belt
Clip
SpringClip
Battery
Cover
This side
facesup