GME GX600A User manual

INSTRUCTION MANUAL
VHF MARINE RADIO
GX600A

SAFETY INFORMATION
The GX600A is a radio transmitting device.
 •Whentransmitting,keepanypartofyour
headorbodymorethan20cmfrom
theantenna.
 •Donottransmitnearelectricalblasting
equipmentorinexplosiveatmospheres.
 •Donotallowchildrentooperatearadio
transmitterunsupervised.
OPERATOR QUALIFICATIONS
AnypersoninAustraliaoperatingaVHFmarineradio
shouldpossesatleastaMarineRadioOperatorsVHF
CertificateofProficiency(MROVCP).Alternatively,operators
mayobtainaMarineRadioOperatorsCertificateof
Proficiency(MROCP),whichcoverstheoperationofboth
VHFandMF/HFequipment.
ManyTAFEsandmarineorganisationsoffercoursesleading
toexaminationfortheMROVCPandMROCPalthough
suchcoursesarenotcompulsory.Personswishingtoobtain
theMROVCPorMROCPshouldfirstpurchaseacopyof
theMaritimeRadioOperatorHandbookwhichisessential
readingforeveryboatownerinAustralia.
TheAustralianMaritimeCollege(AMC)providesthe
marineexaminationandcertificateserviceonbehalfofthe
AustralianCommunicationsandMediaAuthority(ACMA).
TheAMCcanprovidethedetailsoforganisationsand
individualsofferingcoursesandorconductingexams.
Forfurtherinformationvisit:www.amc.edu.au
INTRODUCTION
Congratulations.Youhavejustpurchasedoneofthemost
technicallyadvancedVHFmarineradiosintheworld.
TheGMEGX600AisaVHFFMradiodesignedtooperatein
the156–163MHzmarineband.TheGX600Ahasanumber
ofenhancedfeaturesincludingfullyuserprogrammable
ChannelScanning,DualWatchandTripleWatchfunctions
andtwoprogrammable‘Instant’channelmemories.
WithitscompactsizeandIP67designitcaneasilybe
installedintoalmostanypanelmountinglocationinyour
flybridgeorcabin.
TheGX600AistotallydesignedatourSydneyfacility
usingprecisionrobotsandthelatestmanufacturing
techniquesensuringaconsistentlyhighqualityresulting
inacommunicationssystemofextremereliabilityand
performance.
SAFETYINFORMATION......................................................2
OPERATORQUALIFICATIONS.............................................2
INTRODUCTION................................................................2
FEATURES.........................................................................3
RANGE.............................................................................3
MICROPHONE...................................................................3
CONTROLS........................................................................3
OPERATION......................................................................4
 Volumeon/off............................................................4
 Transmitting...............................................................4
Display.......................................................................4
 ChannelSelection......................................................4
 AdjustingtheSquelch................................................4
 Channel16Selection.................................................5
 SelectingChannelSets...............................................5
 DisplayBacklighting...................................................5
 High/LowPowerSelection..........................................5
 WorkingChannelMemories.......................................5
 DualWatchKey..........................................................6
 DualWatchFeatures..................................................6
 TripleWatchKey.........................................................6
 TripleWatchFeatures.................................................6
 Scanning....................................................................7
 ScanningFeatures......................................................7
INSTALLATION..................................................................8
 SelectingaLocation...................................................8
 InstallingtheUnit......................................................8
 DCConnections.........................................................9
 NoiseSuppression......................................................9
 GX600AWiring..........................................................9
SPECIFICATIONS.............................................................10
SCCONTRACTWARRANTYAGAINSTDEFECTS................11
BRANCHADDRESSES......................................................12
PLEASEREADTHISMANUALTHOROUGHLY
TOENSUREYOUGETTHEBESTFROMTHE
GX600A’SFEATURES.
CONTENTS
PAGE2 INSTRUCTIONMANUAL GX600A

GX600A INSTRUCTIONMANUAL PAGE3
FEATURES
 •CompactIP67Design
 •SelectableInternational,USA,andCanadian
ChannelSets
 •SelectableUSAWeatherChannels
 •DualWatchandTripleWatchwithProgrammable
PriorityChannel
 •10PrivateChannelsavailable
 •ProgrammableChannelScanning
 •SelectablePower25/1watt
 •TwoWorkingChannelMemories
 •AdjustableDigitalSquelch
RANGE
TherangeofVHFtransmissionsdependonantennaheight,
transmitterpowerandtheterrainoverwhichthesignals
pass.Shiptoshipcommunicationsshouldbepossible
overatleast8nauticalmilesanduptoabout27nautical
miles.Shiptoshorerangeswilloftenbegreaterduetothe
increasedheightoftheshoreantennaandcommunications
of25to50nauticalmilesarepossible.
MICROPHONE
CONTROLS
Channel Channel LCD Volume
 Down Up Display
Scan
Microphone
Speaker
PushtoTalk Downkey Upkey Squelch
CH16Key
Channel ChannelA ChannelB Lamp/ DualWatch/ Squelch
 16 Memory Memory Power TripleWatch

OPERATION
VOLUME ON/OFF
RotatetheVolumecontrolclockwisepastthe‘click’to
turntheGX600AON.Whilereceivingasignal,continueto
rotateclockwisetoincreasethesoundinthespeaker.
Rotatethecontrolfullycounterclockwisepastthe‘click’to
turntheGX600AOFFagain.
NOTE: Atminimumvolumesettingthereisstillsufcient
volumetobeheardinaquietcabinenvironment.
TRANSMITTING
Totransmit,pressthePushtoTalk(PTT)switchon
themicrophone.Holdthemicrophoneabout5–8cm
fromyourfaceandspeakatanormalvoicelevel.The
microphoneisquitesensitivesoitisnotnecessaryto
raiseyourvoiceorshout.ReleasethePTTwhenyou
havefinishedtalking.
Transmissiontimeiscontrolledbyatime-outtimer.Ifthe
PTTisheldformorethan90seconds,alowbeepwill
beheardandthetransmitterwillbedisabledtoprevent
accidentaljammingofthechannelfrequency.Toresetthe
timersimplyreleasethePTT.
NOTE: ThetransmitterisdisabledonCH70.IfthePTTis
pressedalowbeepwillbeheardandthePTTwill
beignored.
DISPLAY
CHANNEL SELECTION
Standard Marine Channels
Brieflypressthe keytostepupwardsonechannelorthe
keytostepdownwardsonechannel.Ahighbeepwillbe
heardateachpress.
The and keysarealsoduplicatedonthefrontof
themicrophone.
Pressandholdthe or keyfor1.5secondstoscroll
quicklyupwardsordownwardsthroughthechannelsata
rateof10channelspersecond.Whenthekeyisreleased
channelscrollingstops.
Weather Channels
TheUSweatherchannelsareavailableonlywhentheUSA
ChannelSethasbeenselected.Whenavailable,weather
channelsarenumbered01–10andareinsertedintothe
normalchannelsequencebelowmarinechannel01.They
areselectedintheusualwayusing or keys.Weather
channelsareidentifiedbytheWXicononthedisplay.
Private Channels
PrivatechannelscanbeprogrammedintotheGX600A
fororganisationsthathavebeenofficiallyallocated
specialfrequencies.Privatechannelsareprogrammedon
applicationbyyournearestGMEbranchoffice.Allrequests
forPrivatechannelprogrammingmustbesupportedby
ACMAdocumentation.
IfPrivatechannelshavebeeninstalledtheywillappearas
P0–P9aboveCH88.
ADJUSTING THE SQUELCH
ToopentheSquelch,brieflypressthe SQL key.Alowbeep
willbeheardandtheSquelchwillopen.Brieflypressthe
SQL keyagaintoclosetheSquelch.Ahighbeepwillbe
heardandtheSquelchwillberestoredtoitspresetlevel.
Setting the Squelch Preset Level
ThepresetSquelchlevelcanbeadjustedtosuitlocal
conditions.Ifyouareinanelectricallynoisylocationor
unwantedweaksignalskeepopeningtheSquelch,youcan
adjusttheSquelchsettingsothattheGX600Aremains
quiet.NotethatincreasingthepresetSquelchlevelwill
meanthatstrongersignalswillberequiredtoovercome
theSquelchandmayresultinmissedcallsfromweaker
signals.Thebestsettingistheminimumonerequiredto
keepthereceiverquiet.
Channel Transmit Busy Channel Scan Weather 
 Set   Number Memory
Triple Scan Dual ChannelSuffix Low
Watch Watch e.g.CH87A Power
PAGE4 INSTRUCTIONMANUAL GX600A

GX600A INSTRUCTIONMANUAL PAGE5
ToentertheSquelchsettingmode,pressandholdthe SQL
keyfor1.5secondsuntilahighbeepisheard.Thepresent
Squelchsettingwillbedisplayedindigitsfrom-0to-9with
-0beingunmutedand-9beingmaximumSquelch.While
inthismode,brieflypressthe or keystoincreaseor
decreasetheSquelchlevelrespectivelyasrequired.Press
the SQL keyagaintoexittheSquelchsettingmodeorwait
5secondsanditwillexitautomatically.Alowbeepwill
beheard.
CHANNEL 16 SELECTION
Brieflypressthe 16 keytoswitchstraighttoChannel16.
Allpreviouscontrolsettings(suchasscanningorlow
transmitterpower)willbecancelledandtheradiowillbe
restoredtonormaloperationwithhightransmit
powerselected.Pressthe 16 keyagaintoreturntothe
selectedchannel.
The 16 keyisalsoduplicatedonthefrontofthe
microphone.
SELECTING CHANNEL SETS
TheGX600AisprogrammedwiththreeChannelSets–
International,USAandCanada.TheseChannelSetssupport
variouschannelandfrequencyallocationsforotherpartsof
theworld.OnceyouhaveselectedtherequiredChannelSet
foryourlocation,youshouldnotneedtochangeitagain
unlessyouhavemovedtoanothercountry.
WhenusingtheGX600AinAustralia,the International
ChannelSetshouldbeselected.
To change the Channel Set
• SwitchtheGX600AOFF
• Pressandholdthe 16 keywhileturningtheGX600A
ONagain.
• Channel16willbeselectedandthepresentlyselected
ChannelSetwillflashonthedisplayas INT’L , USA
or CAN .
• Brieflypressthe 16 keytocyclethroughtheChannelSet
selectionsinthefollowingorder:
TheselectedChannelSetbecomesactiveimmediately.
• OncetherequiredChannelSetisselected,return
tonormaloperationbyeitherholdingthe 16 keyor
switchingtheGX600AOFFmomentarilyorwaiting20
secondsfortheChannelSetmodetotime
outautomatically.
NOTE: WhentheUSAChannelSetisselected,weather
channelsareaccessiblebelowChannel01.
DISPLAY BACKLIGHTING
TheLCDdisplayisbacklitforeasyviewingatnight.
Brightness Adjustment
TosetthebrightnessoftheLCDbacklighting,brieflypress
the LAMP key.Eachpresswillcyclethefollowinglamp
illuminationsettings.
HIGH/LOW POWER SELECTION
ToswitchbetweenHighandLowtransmitpower,pressand
holdthe 25/1W key.AhighbeepindicatesHighpower
(25watts)isselectedwhilealowbeepindicatesLow
power(1watt)isselected.Whenlowpowerisselected‘LO’
isdisplayed.
NOTE: SelectingChannel16automaticallyresetsthe
transmittertohighpower.
WORKING CHANNEL MEMORIES
TheGX600Ahastwodedicated‘workingchannel’
memoriescalledChannelAandChannelB.Theseallowyou
tostoreandrecalltwooften-usedworkingchannels.These
memoriesareaccessedusingkeyslabeled CHAN A and
CHAN B .ChannelAisalsousedasthePriorityChannel
fortheTripleWatchfunction(seefeaturedescriptionlater
inthismanual).Thesechannelmemoriesalsoallowfaster
channelswitchingacrossthebandthanwouldnormallybe
possibleusingthe or keys.E.gfromCH16toCH67.
Channel A
TostoreafrequencyinChannelA,selecttherequired
channelusingthe or keys,thenpressandholdthe
CHAN A keyfor1.5seconds.Thechannelnumberwillflash
thenahighbeepwillbeheardasthechannelisstored.
Channel B
TostoreafrequencyinChannelB,selecttherequired
channelusingthe or keys,thenpressandholdthe
CHAN B keyfor1.5seconds.Thechannelnumberwillflash
thenahighbeepwillbeheardasthechannelisstored.
To Recall Channel A or B
Brieflypressthe CHAN A or CHAN B keytoswitch
immediatelytothechannelstoredinthatmemory.Ifthe
radiowasscanningthescanwillbecancelled.
 Bright Dim Off
InternationalUSACanada

DUAL WATCH KEY (DW)
TheDualWatchfunctionisa2Channelscanfeaturewhere
theGX600AswitchesbetweenChannel16andanyother
selectedchannel.Thisallowsyoutomonitoraworking
orclubchannelwhilestillbeingabletoreceiveimportant
broadcastsonChannel16.
TousetheDualWatchfunction,selectyourpreferred
workingchannel–eitherbyusingthe or keys–orby
selectingoneofthestored CHAN A or CHAN B memories
-thenbrieflypressthe DW key.Ahighbeepwithbe
heardand‘DW’willappearonthedisplay.TheGX600A
willnowmonitortheselectedchannelANDChannel16
byalternatingequallybetweenthem.Onlytheworking
channelnumberisshownonthedisplaywhen
DualWatching.
TocancelDualWatching,brieflypressthe DW keyagain.
DUAL WATCH FEATURES
If a Signal Appears on Channel 16
TheradiowillswitchimmediatelytoChannel16andCH
16willbedisplayed.Atthispointtheselectedchannel
isnolongerbeingmonitoredbecauseChannel16has
priority.Duringthistimethe PTT maybepressedfornormal
transmissionson Channel 16 .OnceChannel16hasbecome
inactivefor5secondstheDualWatchfunction
willresume.
If a Signal Appears on the Selected Channel
ScanningwillpauseontheselectedchannelBUTChannel
16willcontinuetobemonitoredevery2seconds.During
thistimethe PTT maybepressedfornormaltransmissions
onthe selected channel (monitoringofChannel16ceases
whiletransmitting).Oncetheselectedchannelhasbecome
inactivefor5secondstheDualWatchfunctionwillresume.
To Transmit on the Selected Channel While Dual
Watching
Simplypressthe PTT. TheDualWatchfunctionwillpause
duringthetransmissionandremainpauseduntil5seconds
afterallactivityhasceasedonthechannel.DualWatchwill
thenresume.
To Transmit on Channel 16 While Dual Watching
Pressthe 16 keytoswitchtoChannel16.Dualwatchwill
becancelledandtheradiowillswitchstraighttoChannel
16.Nowpressthe PTT andtransmitintheusualway.When
yourconversationhasended,pressthe DW keytoresume
DualWatching.
To Change the Working Channel While Dual
Watching
WhileDualWatching,simplyselectanotherworking
channelbyeitherusingthe or keysorselectingone
ofthestored CHAN A or CHAN B memories.DualWatching
continuesonthenewlyselectedchannel.
TRIPLE WATCH KEY (TW)
TheTripleWatchfunctionisanextensionoftheDualWatch
feature.ItallowstheGX600AtomonitorChannel16,a
selectedchannelANDaPriorityChannel.Eachchannel
isscannedequallyforsignalswithprioritygivenfirstto
CH16,thenthePriorityChannelandlastlytheselected
channel.
WhenTripleWatchisselected,theTWiconisdisplayed
alongwiththeselectedchannelnumber.The‘priority’
channelistheonestoredinthe CHAN A memory.
TousetheTripleWatchmode,firstprogramyourPriority
Channel(thedefaultPriorityChannelis9)intothe CHAN A
memory,thenselectyourpreferredworkingchannelusing
the or keys.Nowpressandholdthe TW keyfor1.5
secondsuntilahighbeepisheard.‘TW’andtheselected
channelwillbedisplayed.
To Cancel Triple Watch
Either- Brieflypressthe TW keytoswitchtoDual
Watchmode.Ahighbeepwillbeheard
Or- Pressandholdthe TW keytoreturntonormal
operation.Alowbeepwillbeheard.
TRIPLE WATCH FEATURES
If a Signal Appears on Channel 16
TheradiowillswitchimmediatelytoChannel16andCH
16willbedisplayed.Atthispointtheselectedchanneland
thePriorityChannelarenolongerbeingmonitoredbecause
Channel16hashighestpriority.Duringthistimethe PTT
maybepressedfornormaltransmissionsonChannel16.
OnceChannel16hasbecomeinactivefor5secondsthe
TripleWatchfunctionwillresume.
If a Signal Appears on the Priority Channel
ScanningwillpauseonthePriorityChannelBUTChannel
16willcontinuetobemonitoredevery2seconds(the
selectedchannelisnotmonitored).Duringthistimethe
PTT maybepressedfornormaltransmissionsonthe
PriorityChannel(monitoringofChannel16ceaseswhile
transmitting).OncethePriorityChannelhasbecome
inactivefor5secondsTripleWatchwillresume.
PAGE6 INSTRUCTIONMANUAL GX600A

GX600A INSTRUCTIONMANUAL PAGE7
If a Signal Appears on the Selected Channel
ScanningwillpauseontheselectedchannelBUTChannel
16andthePriorityChannelwillcontinuetobemonitored
every2seconds.Duringthistimethe PTT maybe
pressedfornormaltransmissionsontheselectedchannel
(monitoringofChannel16andthePriorityChannelceases
whiletransmitting).Oncetheselectedchannelhasbecome
inactivefor5secondstheTripleWatchwillresume.
To Transmit on the Selected Channel While
Triple Watching
Simplypressthe PTT .TheTripleWatchfunctionwillpause
duringthetransmissionandremainpauseduntil5seconds
afterallactivityhasceasedonthechannel.TripleWatchwill
thenresume.
To Transmit on the Priority Channel While
Triple Watching
Brieflypressthe CHAN A key.ThePriorityChannelwill
thenbecometheselectedchannel.Nowpressthe PTT and
transmitintheusualway.Whenyourconversationhas
ended,re-selectyourselectedchannel.
To Transmit on Channel 16 While Triple Watching
Pressthe 16 key.Triplewatchwillbecancelledandthe
radiowillswitchstraighttoChannel16.Nowpressthe
PTTandtransmitintheusualway.Whenyourconversation
hasended,pressandholdthe TW keytoresumeTriple
Watching.
SCANNING
TheScanfunctionallowstheGX600Atoscanthrough
aseriesofuserselectedchannelslookingforactivity.
Scanningisdoneinanascendingsequenceatarateof10
channelspersecond.
Channelscanbeselectedandstoredforscanningfromany
oftheavailablechannels,includingweatherchannels(ifthe
USAchannelsetisselected)andprivatechannels(ifthey
areenabled).
NOTE: Thetransmitterisdisabledwhilescanning.Ifthe
PTT ispressed,alowbeepwillbeheardandthe PTT is
ignored.
To Store Channels for Scanning
Selecttherequiredchannelusingthe or keys,then
pressandholdthe SCAN keyfor1.5seconds.Thechannel
numberwillflash,ahighbeepwithbeheardand‘M’will
appearnexttothechannelnumber.
Repeattheprocesstoremoveapreviouslystoredchannel
fromthescanlist.Whenachannelisremovedalowbeepis
heardand‘M’disappearsfromthedisplayonthatchannel.
To Begin Scanning
Brieflypressthe SCAN key.TheGX600Awillscanupwards
throughthestoredchannelsat10channelspersecondand
thedisplaywillshowrapidlychangingchannelnumbers.
Ifasignalislocated,scanningwillpauseonthatchannel
andwillremainfor5secondsafterthesignalhasgone.
Scanningwillthenresume.
To Stop the Scan
Brieflypressthe SCAN keyagain.Theradiowillreturnto
thelastselectedchannel.
SCANNING FEATURES
If the Scan is Paused on a Busy Channel and you
Wish to Remain on That Channel
Brieflypressthe SCAN key.Scanningwillbecancelledand
theradiowillremainonthatchannel.Toresumescanning,
brieflypressthe SCAN keyagain.
If the Scan is Paused on a Busy Channel and you
Wish to Skip over that Channel
Brieflypressthe or key.Scanningwillresumewiththe
nextchannelinsequence.Asanalternative,pressingthe
SCAN keytwicewillgivethesameresult.
If the Scan is Paused on a Busy Channel and you
Wish to Transmit on that Channel
Simplypressthe PTT switch.Scanningwillbecancelledand
theradiowillremainonthatchannel.Note,ifthePTTis
pressedatanyothertimewhilescanning,alowbeepwill
beheardandthe PTT willbeignored.
To Switch Immediately to Channel 16
Brieflypressthe 16 key.Channel16willbeselected,
scanningwillbecancelledandtheradiowillberestoredto
normaloperationwithhightransmitterpowerselected.
To Switch Immediately to a Stored Working
Channel (CHAN A or CHAN B)
Brieflypressthe CHAN A or CHAN B key.Scanningwillbe
cancelledandtheradiowillswitchtothechannelstoredin
theselectedmemory.
Scanning Notes
1.Eachchannelsethasitsownindependentscanmemory.
E.g.ScanchannelsstoredundertheInternationalchannel
donotaffectthosestoredundertheUSAchannelset.
2.IftheGX600Aisswitchedoffwhileitisscanning,it
willresumescanningautomaticallywhenitisswitched
ONagain.

3.Aminimumof2channelsisrequiredinthescanmemory
beforescanningisallowed.Iftherearelessthat2
channels,pressingthe SCAN keywillgivealowbeep
andthescanwillbeignored.
4.Thefollowingkeys/functionsaredisabledwhilescanning:
•PTT
•25/1W
•Scanmemorystorage
Scanning with Dual Watch
IfDualWatchisselectedwhilescanning,Channel16willbe
insertedintothescaneveryalternatechannel.
Scanning with Triple Watch
IfTripleWatchisselectedwhilescanning,Channel16and
thePriorityChannel(storedinthe CHAN A memory)will
bothbeinsertedintothescan.
INSTALLATION
NOTE: YourGX600Aisdesignedforconnectionto
negativeearthelectricalsystemsonly.
SELECTING A LOCATION
Itisadvisabletospendalittletimeselectingthebest
locationforyourGX600A.Themountingbracketcanbe
rotatedabove,beloworbehindtheradioenablingtheradio
tobemountedinawiderangeoflocations.Inaddition,
usingtheoptionalflushmountingkit,theGX600Acan
bemounteddirectlyinapanelordashboard.
Upright or Overhead Mounting
Keep the following points in mind when choosing
a location.
• TheGX600AisdesignedtomeettheIP67specification
whichallowsfordirectwaterspray.However,we
recommendyouselectalocationthatwillminimise
excessiveexposuretowatersplashesorcontinuousrain.
• Selectalocationthatwontexposeyourradioto
continuousdirectsunlightwhichmaycauseoverheating.
• Ensurethatthelocationallowsafreeflowofairaround
theheatsinkonthebackoftheradio.
• Themicrophoneandallcontrolsshouldbereadily
accessibleandtheloudspeakereasilyheardfromthe
normalsteeringposition.Anextensionspeaker(SPK600)
canbeinstalledifrequired.
• Forbestresultsconnectthebatteryleadsdirectlytothe
vessel’sbattery.Ifyouneedtoextendthepowerleadsto
reachthebatteryuseheavyinsulatedautomotivewireof
atleast#10gauge.
• Componentsandcurrentsintheradiocreatemagnetic
fields.Toavoidinterferencetoshipscompassesor
autopilotsensors,theGX600Ashouldbemountedat
least300mmfromsuchequipment.
INSTALLING THE UNIT
Afterchoosingyourlocation,holdtheunitwiththe
mountingbracketattachedintothedesiredpositionand
markthelocationwithapencil.Removethemounting
bracketfromtheradioanddrillthemountingholes.Boltor
screwthebracketinplaceusinghardwaresuitableforthe
mountingsurface.Theunitissuppliedwithstainlesssteel
screws,however,ifthemountingsurfaceisunsuitablefor
screwsyoumayneedtoreplacethesewithstainlesssteel
bolts.Rememberthefixingsforoverheadmountedunits
mayhavetowithstandheavypoundingwhenthevesselis
inroughwaterorbeingtowedonatrailer.
PanelMounting
FlushMounting
(OptionalMK600ushmountingkitavailable)
PAGE8 INSTRUCTIONMANUAL GX600A
OverheadMounting
UprightMounting

GX600A INSTRUCTIONMANUAL PAGE9
DC CONNECTIONS
ConnecttheREDpowerleadtothePositive(+)sideofthe
batteryortoanaccessorypointinthevessel’sfusebox.
ConnecttheBLACKpowerleadtotheNegative(-)sideof
thebatteryortoagroundpointinyourvessel’sfusebox.
NOTE: TheREDpowerleadisttedwitha10ampfuse.If
thefuseblows,useonlyastandard10amp(3AGtype)fuse
asareplacement.Useofhigherratedfusesor‘slowblow’
typescouldresultindamagetoyourradiowhichwould
voidthewarranty.
Connecttheantennacabletotherearantennasocket
ontheradiousingaPL259coaxialconnector.
Ifrequired,anSPK600extensionspeakermaybe
installednearthesteeringpositionoroutsidethe
cabintoimprovethereceptionclarityinthoseareas.
TheSPK600isspecificallydesignedfortheGX600A
withawatertightconnectortomatchtheextension
speakersocketontherearoftheradio.
NOISE SUPPRESSION
TheinherentdesignofVHFFMradiosresultsinahigh
levelofresistancetoignitionandelectricalinterference.
Howeverinsomeinstallationsitmaybenecessaryto
takeadditionalstepstohelpreduceoreliminatenoise
interference.Duringinstallation,trytoroutetheDCbattery
leads,theantennaleadoranyaccessorywiresawayfrom
theenginecompartment,ignitionoralternatorwiring.Ifthe
noisecontinues,itmaybenecessarytofitasuppressionkit.
Contactyourlocalmarinedealerformoreinformation.
Similarly,iftheinterferenceyouareexperiencingisfrom
otherelectronicequipmentsuchasadepthsounder,tryto
keepthedepthsounder’sDCleadsandtransducercable
wellawayfromyourGX600A’swiring.
GX600A WIRING
DCPowerCable ExtensionSpeakerSocket
GimbalKnob
AntennaSocket
MountingBracket
Rear Panel Connections
ExtensionSpeaker
SPK600(optional)
VHFAntenna
10AmpFuse
Black- Red+
12Volt
Battery
GX600A

ELECTRICAL
General
Complies with: AS/NZS4415.2.2003
Frequency Range: 155–165MHz
Channel Spacing: 25kHz
Modulation: FM
Channels Sets: •International,USA,Canada
  •Private–10channels
  •USAweatherchannels
  •Customerweatherchannels
Supply Voltage: •12Voltnominal
  •10.5–15.6voltmax.range
  •Negativeearth
Frequency Stability: ±1.5kHzoverenvironment
extremes
Scan Speed: 100ms/channel
(10channels/sec)
Transmitter
Power Output: •High:25wattsmax
  •Low:1wattmax
Spurious Emissions: <-75dBc
Frequency Deviation: ±5kHzmax+20dBlimiting
@1kHz
Frequency Response: +6dBperoctave,
300Hz–3kHz,+1-3dB
Demodulated S/N: >50dBweighted
Current Consumption: •Highpower:<5amps
  •Lowpower:850mA
Receiver
IF Frequencies: •1st:21.4MHz
  •2nd:450kHz
Sensitivity: -121dBmfor12dBSINAD
unweighted
Squelch Sensitivity: Adjustable,10presetlevels
Spurious Rejection: >70dB
Intermodulation
Rejection: >75dB
Adjacent Channel
Rejection: >74dB
Blocking Rejection: >100dB
RF Bandwidth: <4MHz
Switching Bandwidth: >10MHz
Frequency Response: -6dBperoctavede-emphasis,
300Hz–3kHz,+1-3dB
Audio Output Power: •4wattsaverageintoexternal
4Ohmspeaker
  •2wattsaverageintointernal
speaker
Audio SN: >50dBweighted
Conducted Spurious
Emission: <-70dBm
Current Consumption: •Muted:<200mA
  •Fullvolume:700mA
MECHANICAL
Dimensions: 164(W)x65(H)x77(D)mm
Flush Mounting: 46mmpaneldepthminimum
Weight: 590grams
ENVIRONMENTAL
Temperature Range: -10°Cto+55°C
Vibration: MILSTD810E,
procedureI3.4.8
Solar Radiation: CaseUVstabilised
Water and Dust
Resistance: •IP67excludingexternal
cabling
Compass Safe Distance: 300mm
EXTERNAL CONNECTIONS
Microphone: 6pinsocket
DC Supply: 2pinsocket
External Speaker: 3.5mmphonolinesocket
SPECIFICATIONS
Specificationsaretypicalunlessotherwiseindicatedandmaybesubjecttochangewithoutnoticeorobligation.
PAGE10 INSTRUCTIONMANUAL GX600A