Manual de usuario YAESU--FT-2400H-User-Manual.pdf

Manual de usuario

1. FT=2400Η
2-m,50-WattMobile
PagingTransceiver

2. Sρecifτcations

.............

2

Odd-SplitMemories

18
Accessories

2

NamingMemories

18
Controls&Connectors........3

CALLChannelMemory

19
Installation.............
AntennaConsiderations

8
MobileInstallation

8
10
10
Microphones

10
MemoryTuning

20
HidingandErasingMemories

21
Scanning

21
ProgrammableSubbandLimits

22
Operation

...............11

PriorityChannelMonitoring

24
PreliminarySetup 11

CTCSSOperation 25
SquelchSetup 12

τιΤΜΣPaging&CodeSquelch(ω/FRC-6)27
12

InCaseofProblems

.........

34
13

MemoryBackup

36
14
14

Me
moryCloning

36
16

PacketRadio

37
16

InternalAdjustments

37
BaseStationInstallation
ExternalSpeakers
FrequencySelectionModes
Frequency&StepSelection
Transmitting
RepeaterSplits
AutomaticRepeaterShift
SimpleMemoryStorage&Recall
RecallingMemories
TableofContents
SeparateTransmit
FrequencyMemories

19
18

InstallationofOptions

.......38

3. FT-2400HFeatures
TheFT-2400HisαspecialversionofYaesu's
top-of-the-lineprofessionalgradecommercial ato risincludedinEuropeanversions.
landmobiletransceivers,intendedfor2-meter

ρ38-toneprogrammableCTCSSencoderis
FMoperationintheamateurradioservice.

built-inasstandard,andtheFTS-17ACTCSS
toαrepeatersubband.Α1750-Hztonegener-
Withitscompartmentalizedone-piecedie-
castchassis,theFT-2400Hprovides3-step
user-selectablepoweroutputupto50watts
easilywithoutforcedcooling.Backlightingfor
thelargeLCD(display),knobsandmajorbut-
tonsisautomaticallycontrolledbyαphotosen-

RevolutionaryDTMF(Dual-Tone,Multi-Fre-
sor,andtheless-usedbuttonshaveαflip-down

quency)-basedselectivecallingandprivate
protectivecover.

pagingcapabilitiescanbeeasilyaddedwiththe
optionalFRC-6,controlledentirelyfromthe
Thethirty-onefreelytunablememoriescan

frontpanel.Youcanselectanyof9993-digitID
eachbeprogrammedwithα4-characterchan-

codesforyourtransceiver,andthenhaveyour
nelname,whichcanthenbedisplayedinplace

receiverstayquietuntilyourcodeisreceived
offrequency,asdesired.Eachmemoryoffers
completeprogrammabilityandscanningfunc-

(f
romanystandardDTMF-equippedtrans-
toons,suchasindependenttx/rxfrequencies,

ceiver).Whenαcallisreceived,theFT-2400H
displaysthecaller'scode,andαpagingbeeper
independentrepeateroffsetandCTCSStone,

besettosoundandeventorespondtothe
programmablescanlimits,selectablescanre-

can
sumemodesandmemory

callautomatically.SevenDTMFcodememories
oryskip,prioritymoni-

storeyourIDplusthoseofsixotherfrequently-
channel.Channelstepsareuser-selectable

calledstationsorgroupsyouwishtomonitor.
decoderunitcanbeinstalledtoprovidetone
squelchedprivatechannelsandαCTCSSpaging
bellfeaturetosoundαpagingalerttonewhen
thetonesquelchopens.
from5to50kHz,andAutomaticRepeaterShift
cansetstandardrepeatershiftswhenyoutune

familiarwiththeFT-2400H.
Pleasereadthismanualcarefullytobecome

4. General Receiver
FrequencyRange:144--146or148MHz,or

CircuitType:
140--150MHzΤχ,140-174MHzRx

DoubleConversionSuperheterodyne
ChannelSteps:5,10,12.5,15,20,25&50kHz

IFs:21.4MHz&455kHz
FrequencyStability:<10ppm(-20to+60°C)

Sensitivity(for12dB5ΙΝΆD):
F3

betterthan0.2μV
ModeofEmission:
Selectivityelectivity(-6/-60dB):12/30kHz
Impedance:50ohms,unbalanced
IFRejection:betterthan70dB
Supplyvoltage:13.8VDC±10%,negative
ground

ImageRejection:betterthan70dB
CurrentConsumption(typical):

MaximumAFOutput:
Rx:400mA,Τχhi/med/1οω:12/9/5Α

2Winto8ohms@10%οΤΗD
OperatingTemperatureRange:-20to+60°C
CaseSize(WHD):

Specificationssubjecttochangewithoutnoticeorobligα-
160χ50χ180mm(w/oknobs)

tion.
Weight:1.5kg(3.31b)
Transmitter
OutputPower(high/med/1οω):50/25/5W
ModulationType:VariableReactance
MaximumDeviation:±5kHz
SpuriousRadiation:lessthan-60dB
MicrophoneImpedance:2kΩ
Specifications
Accessories
FTS-17ACTCSSUnit

ρ/η-Α03700002
FRC-6DTMFPagerUnit

Α03740001
ΜΗ-26G8iHandMicwBurst

Α04290001
ΜΗ-27Α8αDTMFKeypadMic

Α04270001
SP-7ExternalLoudspeaker

Α03590001

5. Controls&Connectors
Ο

©0(D©
®ο
(1)

POWERButton (3)

SQLControl
Pressthisbuttontoturnonthetransceiver.

Thiscontrolsetsthethresholdlevelatwhich
Pressandholditfor1/2-secondtoturnitoff.

αreceivedsignal(ornoise)opensthesquelch
andcanbeheard.Formaximumsquelch
(2)

MicrophoneJack se nsitivitysetthiscontrolfromcounter-
clockwisejustuntilnoiseissilenced(andthe
This8-contactmodularjackacceptstrans-

"BUSY"indicatoronthedisplayisoff)when
mitaudio,tonecall(burst)ordial/memory

thechannelisclear.
selectionandscanningcontrolfromthemi-
crophone,andprovidesreceiveraudioforα
(4)

VOLControl
speaker/mic.Memoriescanbecopiedtoand
fromanotherFT-2400Hthroughthisjack,
andαpackettnccanbeconnected.
Thiscontroladjuststhevolumeofthere-
ceiveraudioandofthebuttonbeeper.

6. FunctionButtons(behindflip-downdoor)
Toopentheflip-downdoor,prytherightedge(nexttotheselectorknob)outgentlywithα
fingertip.Toclosethedoor,pressupwardsonthebπttοητedgeofthedooratitscenter.Donot
trytoclosethedoorbypushingfrontth.efront.
Thefivebuttonsbehindthedoorcontrolmostoftheρrοgrατιιιτιαb1efeatures.IfthebeeperIs
enabled,oneormorebeepswillsουτιdwhenαbuttonispressed,iftheresultingcommandis
accepted.Thewhitelabelshowstheprimaryfιιτιctίοηofeachbutton.However,ifyoupressthe
F/Wbuttonfirst,thesebuttonswillρerforτnalternatefunctions.Onthreeofthese,thealternate
functionisindicatedbythebluelabelonorbeneaththebutton.Thesearedescribedinthe
Operationchapter.
Fordescriptionsinthismanual,werefertoalternatebuttonfunctionsbyprecedingthebutton
namewith"Σ/W-~"torετηίηdyoutopresstheF/Wbuttonfirst.Forexample,"F/WιΟCΚ
indicates
thatyoushouldpresstheF/Wbuttonfollowedbythe
ι
Lowbutton(withinfiveseconds)_
(5)

RPTButton
Thisbuttontogglesrepeatershift:+(up),-
(down)oroff.Thealternatefunctiondisplays
shiftoffsetandARSstatus.
(7)

PAGEB
utton
(6)

ΤΟΝΕButton

CODE
17ΑToneSquelchUnitisnotinstalled,only
encodeandoffmodesareavailable.Theal-
ternatefunctiondisplaystheCTCSStonefre-
quencyandbuttonbeeperstatus.
ThisbuttontogglestheCTCSS(subaudible
Thi sbuttonactivatesDTMFpaging(orcode
tone)features:encode(ontransmission

squelch)iftheFRC-6Paging/CodeSquelch
only),encode/decode(onbothtransmission

optionisinstalled.Thealternatefunction
andreception),andoff.IftheoptionalFTS-

displaysDΤΜFCodeMemories.

7. (8)

BALLB
utton
Pressthisbuttontojumptoandfromyour
CALLchannelmemory.Thealternatefunc-
tiontogglestheCTCSSpagingbell,described
later.
(9)

ΑΤΡ
Button
Whilereceivingonαmemory,pressingthis

Thisbuttonallowstuningin1-MHzsteps
buttontoggles
4-1,

disp
1
aybetweenfre

e-
quencyandalphanumericname.Thealter-
natefunctiondisplays(andallowschanging)
thetuningstepsize,andthescan-resume
mode,asdescribedlater.
(thekHzdigitsblankonthedisplay).Ifre-
ceivingonαmemory,pressingthisbutton
thefirsttimeactivatestheMemoryTune(MT)
mode,andpressingitagainenables1-MHz
steps.Thealternatefunctionofthisbutton
(10)SelectorKnob

activatesprioritymonitoring,describedin
theOperationchapter("Ρ"displayedinstead
This24-positiondetentedrotaryswitchis

ofthememorynumbertotheupperleftof
usedfortuning,memoryselectionandmost

thefrequency).
functionsettings.TheDWNandUPbuttonson
themicrophoneduplicatethefunctionsof
thisknob.

(13)
SKIP
Button
(11)Low
LOCK
Button
Pressthisbuttonwhilereceivingtotoggle
high/mediumandlowtransmitterpower
(50/25and5watts,respectively).Thedis-
playshows"LOW"(abovetheS-meter)when
eitherlowormediumpowerisselected.The
alternatefunctionofthisbuttondisablesthe
selectorknobandmostofthefrontpanel
buttons(exceptitself,F/WandPOWER,andthe
microphonebuttons).PressF/Wandthisbut-
tonagaintounlockthepanel.
(12)
ΡΗτ
Button
Duringsplit-frequencyoperation,suchas
throughαrepeater,thisbuttonreverses
transmitandreceivefrequencies.During
memoryoperation,thealternatefunction
setsthecurrentmemorytobeskippeddur-
ingscanning.

8. (14)
Me
Button
Thisbuttonswitchesoperationbetweenthe
twomaintuningmodes:dialandmemory.
Thealternatefunctionmarksthecurrent
memorytobeskippedduringscanning.This
buttonisduplicatedbyαbuttononthemi-
crophoneinnon-Europeanversions.
(15)F/WButton
Thisbuttonactivatesthealternatefunctions
(bluelabels)ofmostoftheotherbuttons.It
(16)Display
PanelLock

MemoryTuning

Alt.KeyFuncs.

CTCSSDecode
`®

IOU
0
EN
CDEC=+PAGECODE-
LOW ιsκιΡ
'

ιη1
13F
.~.~~
)FιιιιιιιNΊ%ι%;
RxS-Units/

DTMFDecoder
RelativeΤχ

Enabledfor

MemScanSkip

CTCSSBell
Power Paging
isalsousedtostorecurrentoperatingdata
intoαmemory(byholdingitdownfor1/2-sec-
ond,releasingandpressingagain),andto
toggleseveralprogrammablefeatures.
Thedisplaysegmentsareasshownbelow.
Themaindigitsonthedisplaymayshow
operatingfrequency,memoryname,oranyof
manyparametersduringsetting,suchas
tuningstepsize,CTCSStonefrequency,or
RepeaterShift

DTMFPaging

DTMFCode
/Enabled

/Squelhc

9. (17)13.8ΥDCCablePigtailω/Fuse

YaesuSP-3,SP-4,SP-7orSP-55.Insertingα
plugintothejackdisablestheinternal
speaker.
Thisisthepowersupplyconnectionforthe
transceiver.UsethesuppliedDCcableto
connectthispigtailtothecarbatteryor
otherDCpowersupplycapableofatleast12
Amperes(continuousduty).Makecertain
thattheredleadconnectstothepositiveside
ofthesupply.Thefuseis15-Α,fast-blow.
(18)ΕΧΤSPJack
This2-contactminiphonejackacceptsα4-
to16-ohmexternalspeakersuchasthe
(19)ΑΝΤCoaxialSocket
Connectα144-MHzantennatothistype-Μ
(SO-239)socketusing50-ohmcoaxialcable
andαtype-M(PL-259)plug.Makesurethe
antennaisdesignedspecificallyforuseon
theoperatingfrequency.

10. ThischapterdescribesinstallationoftheFT-

Alsoforbestperformanceusetheshortest
2400Ηwithtypicalsuppliedaccessories.Instal-

possiblelengthofthick,top-qualitycoaxialca-
lationofinternaloptions(theFRC-6DTMF

bleforyourfeedline.Besuretouseαmatching
Paging/SelCallUnitandtheFTS-17ACTCSS

type-Μplugforthejackonthetransceiver.
DecoderUnit)aredescribedatthebackofthis
manual.Ifyouhaveanyoftheseoptions,turn

MobileInstallation
toInstallationofOptionsatthebackbefore
Th eFT-2400Hmustonlybeinstalledincars
installingthetransceiverasdescribedbelow.

havingαnegativegroundelectricalsystem.
Mountthetransceiverwherethedisplay,con-
trolsandmicrophone,areeasilyaccessible,us
ingthesuppliedΜΜΒ-48mobilemounting
bracket.Thetransceivermaybeinstalledin
anyposition,butshouldnotbenearαheater
ventorwhereitcouldinterferewithdriving.
Makesuretoprovideplentyofspaceatthetop
andrearsothataircanflowfreelythroughthe
heatsink.Refertothediagramsonthenext
pageforinstallation.
AntennaConsiderations
TheET-2400Hisdesignedforuseonlywith
anantennahavinganimpedancenear50ohms
onthe2-meterband.Foroptimumperformance
useαhighquality,carefullydesignedantenna.
Theantennashouldalwaysbeconnectedwhen
operatingthetransceiver,toavoiddamagethat
couldotherwiseresultiftransmissionoccurs
accidentallywithoutanantenna.
ΟDecidethemountinglocationwithsufficient
clearanceforthetransceiver,plusspacefor
ventilationaboveandbehindtheset.Use
Forbestperformanceandsafetyinmobile

themountingbracketasαtemplatetomark
installations,mounttheantennainthecenter

thelocationsofthemountingholes.Useα
ofαflatsurface,outofreachofhumanhands:

4.8-mm(3/ι6")bittodrilltheholes,andse-
50wattscancauseanRFburntoanyonetouch-

curethebracketwiththefoursuppliedlong
ingtheantennaduringtransmission!

screws,washersandnuts(seediagram).
Makesureyourantennaisdesignedtohan-
dle50wattscontinuoustransmitterpower.
Installation

11. ΟPositionthetransceiverinthebracketso

ΟBeforeconnectingthetransceiver,checkthe
thattheholesinthesidesarealignedwith
thoseinthesidesofthebracket,andboltthe
transceiverintoplacewiththesupplied
shortscrewsandflatwashers.
ΟConnecttheREDpowercableleadtothe
ΟThemicrophonehangermaybeinstalled

POSITIVE(+)batteryterminal,andthe
whereverconvenient.

BLACKleadtotheNEGATIVE(-)termi-
nal.Ifyouneedtoextendthepowercable
MobilePowerConnections

use#14AWGorlargerinsulated,stranded
copperwire.Connectthecabletothetrans-
ceiverpigtailonlyafterconnectingtothe
battery.
Tominimizevoltagedropandavoidblowing
thecarfuses,connectthesuppliedDCcable
directlytothebatteryterminals.Donotat-
tempttodefeatorbypassthefuse-itisthereto
protectyouandtheequipment.
voltageatthebatteryterminalswhilerev-
vingtheengine.Ifitexceeds15volts,adjust
thecarregulatorbeforeproceeding.

12. Warning!
NeverapplyACpowertothepowercableof
thetraι-τsceiι,er,rτπrmorethan15νoltsDC.
Wheιτreplacίιτgthefiιse,τ,ι,seοιιlνα15-Α
fαst-blowtype.Dαιηιτgeresr.dtiιτgfrπτιτfαίlιτre
toadheretotheseprecaτctίoιτsιτταyιτοtbe
coveredbyωαrrαιτly.
BaseStationInstallation
ExternalSpeakers
UsinganexternalspeakerwiththeFT-
2400Hletsyoupositionthesourceofaudio
whereitismostconvenienttoovercomeback-
groundnoiseinandaroundthecar.Theop-
tionalSP-7ExternalSpeakerincludesitsown
swivel-typemountingbracket,andisavailable
fromyourYaesudealer.Ofcoursetheolder
SP-3,SP-4orSP-55ExternalSpeakersmay
alsobeused.Plugginginanexternalspeaker
OperationfromtheAClinerequiresαpower
supplycapableofprovidingatleast12Α
con-
tinuously
at13.8VDC.Werecommendusing
anexternalspeaker,sincetheinternalspeaker

Microphones
ismountedonthebottomofthetransceiver.

TheΜΗ-26G8Jhandiemicrophoneforthe
TheFP-700ACpowersupply/loudspeakeris

EuropeanversionΒFT-2400Hincludesαbut-
availablefromyourYaesudealertomeetthese
needs.UsetheDCpowercablesuppliedwith

tononthefrontfortransmittingα1750-Hz
thetransceiverformakingpowerconnections,

bursttone,toaccessrepeatersthatrequireit.
andconnecttheexternalspeakercabletothe

TheΜΗ-27Α8JDTMFkeypadmicrophonealso
speakerjackontherearpanel.

includesαbuttononthefront,which,when
usedwithαversionΑFT-2400H,duplicatesthe
MR
buttononthefrontpanelofthetransceiver.
BothmicrophonemodelsincludeαPTT(Push-
To-Talk)switchtoactivatethetransmitter,and
DWNandUΡbuttonsfortuningandmemoryselec-
tion.

13. Thischapterdescribesthetransceiverfunc-
tionsindetail.Afterstudyingthesedescrip
tions,keeptheFT-2400HOperator'sQuick
ReferenceCardhandyincaseyouneedtore-
freshyourmemory.
PreliminarySetup
Beforeoperatingthetransceiver,recheck
powersupplyandantennaconnections,and
connectyourmicrophonetothefrontpanel
jack.Neveroperatethetransceiverwithoutα
properantennafortheoperatingband.Also,
pleasereadtheearlierControls&Connectors
section,ifyouhavenotalready,tofamiliarize
yourselfwiththecontrols.
Asmentionedbefore,referencestoalternate
buttonfunctionshave"F/W-~"infrontofthe
buttonnametoremindyoutopresstheF/W
buttonfirstmomentarily,andthentheother
buttonwithinfiveseconds(while"F"appears(in
reverse)abovetheleftmostfrequencydigiton
thedisplay).Don'tholdtheF/Wbuttondown,as
thatwillgiveyouαdifferentresult,anddon't
presstwobuttonsasthesametime(exceptthe
PTTswitch,whenstoringαseparatetransmit
frequency).Whenαbuttonshouldbehelddown
Operation
Toturnthetransceiveroff,youmustpress
andholdthePOWERbuttonfor1/2-second.
(asopposedtojustpressedmomentarily)the
instructionswillsayso.
Αfive-secondtimerstartswhenyoupressF/μ,
andclearswhenyoupressingαbuttontomake
αnewselection.Ifyoudon'tmakeαselectionin
fiveseconds,thebuttonfunctionsreturntonor-
mal(whitelabels).
Αbuttonbeeperprovidesusefulaudiblefeed-
backwhenbuttonsarepressed,atαleveldeter-
minedbythevolumecontrol.Eachbuttonhas
αdifferentbeeppitch,andeachfunctionhasα
uniquebeepcombination.Forexample,when
youpressthe
ΟιΚ
button,youwillhearαpairof
low-,medium-orhigh-pitchedbeepscorre-
spondingwiththeRFpowerlevelselected.You
candisablethebeeperasdescribedinthebox
onthenextpage,butwerecommendyoukeep
itenabledwhilegettingtoknowthecontrols.

14. 12
BeeperDisabling
Ifyouwanttoturnthebeeperoff(orback
on.),youcanpressF/W-4TONE--4F/W->TONE
(eachbuttontwice,,alterτiately).Ifyoulock
thecontrols(page14)andhavethebeeper
enabled,pressingαbuttonwillsoundαdif-
ferentmusicalnoteforaslongasitisheld. Notethatwhilereceiving,oneormorebar-
graphsegmentsmayappearatthelowerleft
cornerofthedisplay,indicatingsignalstrength
ofreceivedsignals.Thisisnotaffectedbythe
squelchsetting,soevensquelchedsignalscan
givesomeindication.Ifmorethantwobar-
graphsegmentsappearwhilethesquelchis
closed,tryreducingthesquelchcontrolsetting
Beforeturningonthetransceiverforthefirst (

y°υwanttohearweaksignals).
Ifyouhavetroublegettingthetransceiverto
workasdescribed,seeInCaseofProblemson
page34.
SquelchSetup
time:
0PresettheVOLandSQLcontrolsfullycounter-

DialMode
clockwise.
0ThenpressthePOWERbutton(ifthetrans-
ceiverisoff)andadjusttheVOLcontrolfor
comfortablevolumeonthenoiseoranyre
ceivedsignal."BUSY"shouldbedisplayedin
reverselettersatthefarleft.
0

Ifyouhearαsignal,turntheselectorknob
toαclearchannel(onlynoise).
0TurntheSQLknobclockwisejusttosilence
thenoise.The"BUSY"indicatorwilldisap-
pear.SettingtheSQLfurtherclockwisere
ducessensitivitytoweaksignals.Whenever
αsignalreachesthereceiverthatisstrong
enoughtoopenthesquelch,"BUSY"willbe
displayed.
FrequencySelectionModes
Thismodeisfortuningorscanningtheband
whenlookingforαchannelonwhichtooperate,
whenyoudon'thaveαspecificfrequencyin
mind.Inthismode,theselectorknobandmi-
crophonebuttonseachtunethebandinthe
selectedstepsize,orin1-MHzsteps,andthe
scanningfunctiontunesintheselectedstep
size.

15. MemoryMode

27A8Jmicrophone)togglesbetweenthedialand
Thismodeismainlyforoperatingonlyon

memorymodes.Whileinthememorymode,
specificfrequencychannelsknowninadvance

yourpreviousdialmodeselectionsarepre-
(andprogrammedintothememories).Forex-

served.Also,whenyouswitchfromthedialto
ample,afterstoringthefrequenciesofyourlo-

thememorymode,thelast-selectedmemoryis
calrepeatersintomemories

recalled.
,youcanconfine

recalled.
operationtothosechannelsbyselectingthe

Frequency&StepSelection
memorymode.Inthismode,theselectorknob,
microphonebuttonsandscanningfunctionse-

Youcanselectαnewoperatingfrequency
lectsequentiallyfromthestoredmemories.The
FT-2400Hgivesyou31memories,eachofwhich
canstorerepeatershiftanddirection,CTCSS
settings,andseparatereceiveandtransmitfre-
quencies.ThereisalsoαMemoryTunemode,in
whichyoucantunejustlikethedialmode,and
storetheresultingretunedmemoryintothe
sameoranothermemory.Thisandotherspecial
memorymodefunctionsaredescribedlater,but
youwillwanttokeepthesetermsinmind.
Youcantellatαglancewhichchannelling
modeisinbylookingintheshadedmemorybox
aboveandtotheleftofthefrequencydisplay.If
theboxisempty,youareinthedialmode.Ifyou
seeαnumberoran"L","U'or"C"inthebox,you
areinthememorymode.
fromeitherthedialmodeorbyretuningα
memory.Fornow,wesuggestusingthedial
mode.Ifyouseeαmemorynumberinthemem-
orybox,presstheMRbuttontoswitchtodial
mode.Therearetwowaystoselectyouroperat-
ingfrequency:bytheselectorknob,orwiththe
microphonebuttons.However,holdingoneof
themicrophonebuttonsformorethan1/2-sec-
ondstartsthescanner.Thisisdescribedlater,
butifyou'vealreadystartedit,justpressα
microphonebuttonagaintostop.
ToselecttheMHzrangeinwhichyouwishto
operate:firstpressthe
ΡάΖ
buttonabovethe
selectorknobsothatthekHzdigitsare
blanked,andthenturntheknob.Toreturnto
normaltuninganddisplay,justwaitfivesec-
The
ΜΒ
buttonnearthetoprightcornerofthe

onds,orpress
MRiagaintoredisplaythekHz
display(andthebuttononthefrontoftheΜΗ-

digits,andthenturntheselectorknob.

16. LockedControls
Ifnothinghappenswhenyoupressαbutton
orturntheselectorknob,thecontrolsmay
belocked.Checkfor"LOCI'atthetopleft
cornerofthedisplay,andifyouseeit,press
F/W--->
0CK
tounlockthecontrols.Lateryou
willwanttoenablethelock(withthesame
buttonsequence)topreventhavingyour
settingsdisturbed.Pressingbuttonswhile
lockedsoundsdifferentmusicalnotesforas
longasαbuttonisheld,butonlytheunlock-
ingsequenceaffectsoperation.
powerisselected).Whenyouwishtotransmit,
waituntilthechannelisclear("BUSY"notdis-
played),andsqueezethePTTswitchonthe
microphonewhiletalkingacrossthefrontofit.
Duringtransmission,"TX"appearsattheleft
sideofthedisplay,andtheS&ΡΟbargraph
showsrelativetransmitterpoweroutput(4seg-
mentsforlowpower,8formedium,andfull-
scaleforhigh).ReleasethePTTswitchto
receive.
Ifyourequiremorepowerpressthe

but-
LOCK
~but-
tonagain(toswitchtomediumorhighpower).
However,werecommendusinglowpower
wheneverpossibletominimizepossibleinter-
ference,currentconsumptionandheating.
Defaultchannel(tuning)stepsare5kHzin
versionΑ,and12.5kHzinversionΒ(forΕυ-

IfusingαEuropeanversion,pressthebutton
rope).Zbselectanotherstepsize,pressF/W-4

onthefrontofthemicrophonetotransmitα
ΑΙrι
turntheselectorknobforthedesiredsteps,

1750-HzBurstTonetoaccessrepeatersthat
STEP
,
andpress
sτ/έragain.Seetheboxaboveifthe

requireit.
buttonsorknobfailtooperate.

RepeaterSplits
Transmitting

TheFT-2400Hoffersseveralmethodstoset
upsplitfrequencyoperationforrepeaters:man-
Pressthe
LOCK
buttonattheupperright,sev-

υαl(band,andmemory-specific),automatic
eraltimes,ifnecessary,toselectlowpower

(ARS)andindependentlystoredtransmit/re-
output.Thedisplaywillreturntonormalafter ce ivefrequencies.Themanualandautomatic
αfewseconds,and"LOW'isdisplayedtotheleft

methodsshiftthetransmitfrequencyaboveor
ofthememorybox(wheneitherlowormedium

belowthereceivefrequencybyαprogrammable

17. offset.Thisoffsetispresetatthefactoryto600
kHz,butcanbeeasilychangedasdescribedin
theboxattheright.
Wheninthedialmode,onlyoneoffsetatα
timecanbeused.Thisoffsetcanonlybe
changedwhileinthedialmode,andisapplied
anytimerepeatershiftisactivated(manually,
orbyΑR.S)inthedialmode.Forrepeatersthat
requireanoddsplit,youcaneitherprogramα
memory-specificoffset,orstoreanindependent
transmitfrequencyinthesamememory.These
methodsaredescribedlaterinthediscussionon
memories.
Toactivatethestandardshiftmanually,just
presstheRΡτbutton:onceforminusshift,again
forplusshift,andagaintoreturntosimplex.Α
small"-"or"+"signappearsatthetopcenterof
thedisplaywhenminusorplusshiftisselected,
respectively.
pressingRPTuntilitdoes).
ChangingRepeaterOffset
Todisplaythecurrentrepeateroffset,press
F/W-4RPT.TheoffsetisdisplayedinMHz,to
threedecimalplaces.Youcanchangethe
offsetiη50-kHzstepswiththeselectorknob
ormicrophoneDWNandUPbuttons.Inmost
casesyouwillwanttokeeptherepeater
offsetprogrammed tothemostcommonly
usedsplitinyourarea.
Also,youcanenable/disableARS(Automat-
icRepeaterShift),bypressingF/Watany
timewhiletheoffsetisdisplayed.An"Α"
appearsinthememoryboxwhenARSis
enabled.
Whensetasdesired,presstheRPTbuttonto
returnthedisplaytotheoperatingfre-
quency.
Example:Tooperatethroughα146.34/146.94

QWhenthechannelisclear,pressthePTT
MHzrepeater:

switchonthemicrophoneandsendyour
Ο'runethedisplayto146.94MHz(toreceive

callsign.Thedisplayshouldshiftto146.34
ontheoutputfrequency).

MHzwhileyoutransmit.
DPressRΡτonce

"̞

Ofcoursethisexampleonlyworksifthe
.Α

(minus)shouldappear
atthetopcenterofthedisplay(ifnotkeep

offsetissetto600kHz,assuppliedfromthe

18. factory.Youcanchangeitasdescribedinthe

tive,andclosingthepush-to-talkswitch
boxonthepreviouspage.

changestothe(shifted)transmitfrequency.
Withrepeatersplitactivated,youcanre-

TheARSfunctionisdisabledatthefactory.
versethetransmitandreceivefrequenciesby

Seetheboxonthepreviouspagetoenableit.
pressingthe
sκiΡ
buttonabovetheselectorknob.
Usethistodisplaythetransmitfrequencywith-
outtransmitting,andtocheckthestrengthof
signalsonαrepeateruplinkfrequency.There-
peatershiftsignblinkswhilereversesplitis
selected.Press
REV
againtoreturntothenormal
SKIP
shiftdirection.
AutomaticRepeaterShifi
VersionΑ
VersionΒ
Asalreadymentioned,youcanusetheman-
ualshiftmethod(RΡτbutton)atanytimeto
selectαnewshiftstate,whetherARSisacti-
vatedornot.However,ifyouchangefrequency
insideαrepeatersubbandwithARSactivated,
manualrepeatershiftselectionsarecancelled.
SimpleMemoryStorage&Recall
TheFr-2400Hoffers31memories,labelled1
_
28,C,LandU.Eachcaninitiallystorethe
TheARS(AutomaticRepeaterShift)feature

currentoperatingdatafromthedialmodeorα
activatesrepeateroffsetautomaticallywhen-

retunedmemory.Onceαmemoryhasbeen
everyoutunetothestandardrepeatersub-

stored,itsrepeatershiftandoffset,CTCSStone
bands(seechartbelow).Withthisfeature

dataandsettingsfortheDTMFPagingand
enabled,αsmall"-"or"+"atthetopcenterof

CTCSSoptionscanbemodified,α4-character
thedisplayindicatesthatrepeatershiftisac-

namecanbeassigned,andαseparatetransmit
AutomaticRepeaterShift-RepeaterSubbands
145.1

145.5

146.0146.4146.6

147.0147.4147.6

148.0
+1F_-
145.6

Ι
145.85

19. frequencycanbestored.MemoryC(theCALL

ΟFirstperformthestepsintheexampleon
channelmemory)canberecalledinstantlyby

page15tosetupthedesiredfrequencyand
the
CALL
button,andmemoriesLandUstore

offsetonthedial.
programmablesubbandlimits,describedlater,

Ο
PressandholdtheF/Wbuttonfor1/2-second
inadditiontogeneralpurposeoperation.

todisplayαmemorylabelinthememory
Tostoreαfrequencyinmemory:

box,thendothenextstepwithin5seconds.
ΟSelectthedesiredfrequency(andrepeater

ΟTurntheselectorknobsothat"5"(themem-
splitdirection,ifdesired)inthedialmodeas

orynumbertostore)showsinthememory
alreadydescribed,orbyretuningαmemory.

box.
ΟPressandholdtheF/Wbuttonfor1/2-second,

ΟPressF/Wagain,momentarily.That'sit.The
untilαsecondbeepsounds.Αmemorynum-

dialdatahasbeenstoredinmemory5.After
erorletterappearsblinkinginthememory

αfewsecondsthememoryboxwillclear,and
box.

youareleftoperatingonthedial.
ΟWithinfivesecondsofpressingF/W,usethe
selectorknobormicrophoneDWNandUPbut-
tonstoselectthedesiredmemoryforstor
age(inthememorybox).Ifyouselectone
thatwasalreadybeingused,itwillbeover-
writtenwithnewdatainthenextstep.
ΟPressF/Wmomentarilytostorethedis-
playeddataintotheselectedmemory.The
MHz .
Toconfirmthatthisworked,turntheselec-
torknobtochangethedialfrequency(toany-
thing),thenpressMRtochangefromdialto
memorymode.Thenumeral5shouldappearin
thememorybox,and146.94(thereceivefre-
quency)shouldappearonthedisplay.Press
SKIPto
confirmthetransmitfrequencyof146.34
memorylabelwillstopblinkingforαsecond,

Youcanuseanymemory(exceptC,theCALL
andthendisappearasoperationcontinues

channel)withthesameresult.MemoryCre-
inthedialmode.

quiresαslightlydifferentprocedure.Notice
Example:Storethe146.34/146.94repeaterdata

thatpressing
MR
fromthedialmodealwaysre-
inmemory5.

callsthelaststoredorusedmemory.

20. RecallingMemories
Inconfirmingtheresultsofthelastexample,
weusedthe
MR
buttontochangefromthedial
modetothememoriesaftertheywerestored.
Thememorylabelappearsinthememorybox
attheupperleftcornerofthefrequencydisplay
wheneveroperatingonαmemory.
Whenmorethanonememoryhasbeen
stored,youcanselectαmemoryforoperation
witheithertheselectorknoborthemicrophone
DWNandUPbuttons.Ifyouusethemicrophone
buttons,pressandreleasethebuttonforeach
memory:ifyouholdthebuttondownfor'/,-sec-
ond,memoryscanningwillstart.
Odd-SplitMemories
separatetransmitfrequencyinthememory
(describedlater)toobtainthesameresult,but
youmayfindthismorestraightforwardwhen
dealingwithrepeaters.
NamingMemories
Onceyouhavestoredαmemory,youcan
assignitαnametobedisplayedwhenitis
recalled,inplaceofthefrequency.Namescan
beuptofourcharacterslong,usingcapitalΑ
Ζ,0---9andanunderline.Tostoreαname,first
storethememoryandthenrecall'itasalready
described.
ΟPressandholdtheF/Wbuttonfor1/2-second,
untilthesecondbeepsoundsandthemem-
ory
storingαfrequency,withorwithout

οr~
numberstartsblinkinginthememory
box.
shift,fromthedial,youcanmodifythe

.
repeatershiftandoffsetofthatmemoryonly.

ΟWithinfivesecondsofpressingF/W,press
Justrecallthememory,pressRPTasnecessary

the
STEPbu
tton:Unlessαnamewasprevi-
tosettheshiftdirection,andthenfollowthe

ouslystoredforthismemory,thefrequency
stepsinthe"ChangingRepeaterOffset"boxon

willbereplacedby("--------",withthe
page15.Ifyouwanttomakethenewoffset

firstpairofhyphensblinking.
permanentforthatmemory,remembertopress
andholdtheF/Wbuttonfor1/2-second,untilthe

ΟYoucannowusetheselectorknobtochoose
secondbeepsoundsandthenpressitagain

thefirstcharacterofthenametobedis-
momentarily.Ofcourseyoucouldalsostoreα

played.

21. ΟAfterselectingthedesiredcharacter,use
ΡorthemicrophoneDWNandUPbuttonsto
getthenextpairofhyphensblinking,and
usetheselectorknobtosetthischaracter.
ΟRepeatthelaststepuntilallcharactersare
setasdesired,andthenpress
ΑΙΝtwice.At
STEP
CALLChannelMemory
frequency,youcanalsosetandchangerepeater
settings,andgiveitαnametodisplayinplace
offrequency,justbyrecallingitbeforefollowing
thoseprocedures.
Tostorethecurrentdialfrequency/repeater
stateintheCALLchannelmemory,holdtheF/W
buttonfor1/2-secondtodisplaysomethinginthe
memorybox,thenpresstheB
ALL
button.Tostore
BELL
thefirstpress,thedisplaywillreturntothe
memoryfrequency.Afterthesecondpress,
thememorynamewillbedisplayed-for
thisandanyothermemoriesthathavebeen ste psforαregularmemoryafterpressing
CALL
BELL
assignednames(unnamedmemorieswill

(sotheprocedureisdonewhile"C"appearsin
stillbedisplayedaschannelfrequencies).

thememorybox).Tostoreαseparatetransmit
Onceyouhavestorednamesforseveral

frequencyintheCALLchannel,afterstoringthe
memories,youcantogglebetweenfrequency

receivefrequency,tunethedialtothetransmit
andnameviewsforallofthematanytime fr equencyandrepeatthestoringprocedure
whilereceivingonαmemory,bypressing
STEP

above,butthistimeholdingthePTTswitch
whenyoupressthe
1ΕL
button.
αnamefortheCALLchannel,followthesame
Althoughinvisibletothememoryrecall

SeparateTransmit
FrequencyMemoriesmethoddescribedsofar,theCALLchannel
memorycanbeinstantlytoggledbythe
ΒΕLL

BesidestheCALLmemory,allothermemo-
button."C"appearsinthememoryboxwhenthe

tiescanstoreindependentreceiveandtransmit
CALLmemoryisactive.Thefactorydefaultfor

frequencies(however,ifyouareworking
theCALLchannelmemoryisthebottomedgeof

throughαrepeater,youmightfindstoringα
theband.Youcanreprogramitfromthedial

uniquerepeateroffsettobesimpler-see
withanyfrequencyandrepeaterstate,oreven

"Odd-SplitMemories",above).Τοstoreαsepa-
αseparatetransmitfrequency.Afterstoringthe

ratetransmitfrequency,

22. ΟStorethereceivefrequencyusingthe
methodalreadydescribedunderSimple
MemoryStorage(itdoesn'tmatterifαre-
peateroffsetisactive).
ΟTunetothedesiredtransmitfrequency.
ΟPressandholdtheF/Wbuttonfor1/2-second
todisplaythememorylabelboxagain.
ΟPressandholdthePTTswitchwhilepress-
ingF/Woncemoremomentarily(thiswillnot
keythetransmitter).
Wheneveryourecallαseparatetransmitfre-
quencymemory,"-+"appeartogetheratthe
topcenterofthedisplay.Aswithregularre-
peateroffsetoperation,youcanpressthe
SKIP
buttontodisplaythetransmitfrequency,butin
thiscasebothshiftsymbolswillblink.
Afterstoringαmemorywithαseparate
transmitfrequency,ifyourewritethereceive
frequency,theseparatetransmitfrequencyis
deleted.
MemoryTuning
Whilereceivingonαrecalledmemory,you
arefreetochangesettingssuchasrepeater
shiftandoffsetasalreadydescribed,aswellas
CTCSSandDTMFPagingsettings,described
later.However,inthememorymode,theselec-
torknobandmicrophonebuttonsnormallyjust
selectfromamongthestoredmemories.To
changethefunctionofthesecontrolssothatyou
canretunethecurrentmemory,pressthe
PRi
buttonmomentarily."MT"appearstotheleftof
thememorylabelinthememorybox,andyou
cantuneinthesamewaysasdescribedbefore
forthedialmode(includingMHzsteps).Ifyou
aredisplayingthememorynameinsteadof
frequency,thedisplaywillchangetofrequency
whileyoutune,andthenautomaticallybackto
thenameafterαfewseconds.
Youcanstorethenewfrequencyandsettings
inthecurrent,oranother,memory.Justpress
andholdF/Wfor1/2-second,selectthenewmem-
ory(ifdesired),andpressF/Wagainmomentar-
ily.Operationremainsonthe(new)memoryas
theoldmemoryrevertstoitsoriginalstate.
Note
Namesstoredinmemoriesalwaysstaywith
thememoryτιυτηber-tlιeyarenotcopiedor
overwrittenwhenstoringαretunedmem-
oryintoατιοtherzneτnnry.

23. Afterretuningαmemory,ifyoudon'twantto

ΟPressthe
REY
button.Thiscausesthedisplay
SKIP
saveyourchanges,justpress
D'MR
:oncetoreturn

tochangetothenextlowerstoredmemory,
totheoriginalmemorydata,ortwiceifyou

andthepreviouslyselectedmemorytobeno
wanttoleavethememoriesandreturntothe

longerselectablemanually,orbyscanning
dialmode.

(describedlater).
Tounmaskαhiddenmemoryforoperation,
HidingandErasingMemories
ΟRecallanymemory.
Asalreadymentioned,storingdatainα

Ο
PressandholdtheF/Wbuttonfor1/2-second.
memoryautomaticallyoverwritespreviously
storeddata(exceptthememoryname).How-

ΟSelectthememorynumbertoberestored.
ever,ifyouregularlymovefromoneareato

Ο
PresstheREVbutton(notF/W!).
another,youmaynotalwayswanttousethe

SKIP
samememories.WiththeFT-2400H,youcan

Whenyouhavehiddensomememories,be
selectandalterwhichmemoriesareavailable

carefulnottooverwritethemaccidentally.If
duringmemoryselectionandscanningwithout

youdo,youwilllooseallpreviouscontentsex-
havingtorewritethemfromscratch.Thisis

ceptthename.
donebymaskingcertainmemoriessothatthey

Scanning
arehiddenfromoperation,andunmasking
themonlywhendesired.

Beforeyoustartscanning,makesuretheSQL
controlissettosquelchoffthenoiseonαclear
Tomaskαmemory,

channel.Youstartandstopscanningwiththe
ΟRecallthememorytobemasked.

DWNandUPbuttonsonthemicrophone.Just
pressandholdthebuttonformorethan1/2-sec-
PresstheF/Wbuttonfor1/2-second(untilthe

andtostartscanning.Ifthetransceiverisinthe
secondbeepandthememorylabelblinks).

dialmode,bandscanningwillresult.Other-
Ifyouweredisplayingthememoryname,it

wise,ifαmemorylabelisdisplayed,onlythe
willreverttofrequencyatthispoint.

memorieswillbescanned.

24. Thescannerpauseswhenαsignalopensthe
squelch,andthedecimalpointonthedisplay
blinks.Youcanalsostopthescannermanually
bypressing
MR'
MemorySkipScanning
Whenyouhavesomeveryactivechannels
storedinmemoriesyoumaywishtoskipthem
canResumeMode.Selection
Youhaveαchoiceoftwoscan-resume
modes:eitherPausemode,inwhichthe
scannerpausesforaslongasthecarrier
keepsthesquelchopen;orthe5-second
mode,inwhichthescannerpausesforfive
secondsandthenresumesscanning
whetherthesignalisstillpresentornot.
The5-secondmodeisthefactorydefault.
Tochangethescan-resumemode(whennot
scanning), press F/W--->
Α/Ν
_Α
υΡ"
or
υ5ιι
inthe
STEP
memoryboxindicatesthecut-rentmode.If
youwanttochangeit,pressF/Wmπητeηtαr-
ily.Press
sτέΡ
againtoreturntothefre-
quencydisplaywhenthescan-resτιniemode
issetthewayyouwantit.
whenscanning,butstillhavethemavailable
formanualselection.Youcanmarkαmemory
tobeskippedbypressingF/W->
τιΕαΥΡ
whilere-
ceivingonthememory."SKIP"appearsintiny
lettersjusttotherightofthememorynumber
boxtoshowthatthismemorywillbeskipped
duringscanning(althoughyoucanstillrecallit
manually).Onceset,thescanskipstatere-
mainswiththememoryuntilitisspecifically
cancelled.
Totothisandre-enablethememoryforscan-
ning,justrepeatthestepsyoutooktodisableit:
selectthememorymanually,andpressF/W-4
REV
SKIP'
ProgrammableSubbandLimits
Besidesbandandmemoryscanning,theFT-
2400Hcanbesettotuneorscanonlythefre-
quenciesbetweentwofrequencylimitsofyour
choice(withtheselectedchannelsteps).Briefly,
theprocedureistostorethelimitsinthespecial
memorieslabelledL(lower)andU(upper),and
thenwitheithermemoryrecalled,pressthe
MHzPRI
buttonmomentarily.
AsdescribedpreviouslyinMemorynning,
"Μ1"appearsinthememorybox(butthistimeit
isblinking),andyoucantunethememory,α1-

25. thoughthefrequenciesstoredinmemoriesL
andUnowlimitthetuningandscanningrange
totheresultingsubband.IftheeitherARSor
manualrepeatershiftisactivated,repeateroff-
setisappliedautomaticallywhenyoutransmit
(eveniftheresultingtransmitfrequencyisout
sidethesubbandlimits).Ifyoustoreanodd

Ο
repeateroffset(thisis,onedifferentfromthe

148.000and148.095MHz.
dialmode'srepeateroffset)inoneofthelimits,

Ο
theoddoffsetwillbeapplied.
ΟHoldtheF/Wbuttonfor1/2-second,tunethe
selectorknobsothatLappearsinthemem-
orybox,andthenpressF/Wagainmomen
tarily.Thedisplayedfrequencyisnow
storedtoprovideaneffectivelowersubband
limitof146.000MHz.
Tunethedialtoanychannelbetween
Repeatthesecondstep,selectingUinthe
memorybox.Thisstorestheeffectiveupper
subbandlimitof148.000MHz.Note:Thefrequencyresolutionofsubbandlim
itsis100kHz,althoughthechannelresolution

ΟPressDltochangetomemoryoperation.
ofmemoriesLandUistheselectedchannelstep
size.Thereforethefrequenciesstoredinboth

ΟPressthe
ΜΗ
'
buttonmomentarilytoactivate
memoriesLandUareroundeddowntothe

the146.000-148.000subbandlimitsfor
nearest100kHztodeterminetheactualsub-

tuningandscanning.
bandlimits.Sincethey-arenotlimitedtoα
specificfrequency,youcanstillusetheLandU
memoriesforotherpurposesonanyfrequency
withinthe100-kHzrangeabovetheintended
subbandlimit.
Tocancelyoursubbandlimitsandreturnto
memoryoperation,press
Me
(ifyouarescanning,
orwanttoreturntodialoperation,youmust
pressittwice).Pressingthe
CALL
buttonalso
cancelssubbandlimitsasoperationswitchesto
Example:Tolimitreceptionto146.0--148.0

theCALLchannel.
MHz(onlyapplicabletocertaintransceiverver-

OnceyouhavestoredtheLandUmemories,
sions)

youcanreactivatethesubbandjustbyrecall
Tunethedialtoanychannelbetween

ingeithermemoryandpressing
Μ.However,
PRI
146.000and146.095MHz.

youcannotactivatethesubbandwhentheLor

26. Umemoriesaremarkedforskip-scanning

shiftstotheprioritymemorybrieflywhilethe
(you'llgetordinarymemorytuning),orifeither

receiverchecksforαsignal.
ofthesememoriesaremasked(hidden).
PriorityChannelMonitoring
Prioritymonitoringprovidesautomatic
checkingforactivityonαprioritychannel
(memory)everyfivesecondswhileoperatingon
thedialorothermemories.Whenthereceiver
detectsαsignalontheprioritychannel,opera-
tionautomaticallyshiftstothatmemorywhile
thesignalispresent(plusαfewseconds).Ifyou
transmitwhilepausedontheprioritychannel,
prioritymonitoringceasesandoperationstays
ontheprioritymemory.
Tosetupforprioritymonitoring:
ΟPresetthesquelch,andstorethefrequency
tobemonitoredinαmemory(thismustbe
memory1ifyouwillbeoperatingonother
memoriesduringprioritymonitoring).
Ο

Press
MR
tooperateinthedialmode,orelse
selectthememoryyouwanttooperateon,
andthenpressF/ω-4'Ρ
RΊΙ
Whilenosignalappearsontheprioritychan-
neltoopenthesquelch,youcantune,transmit
andreceiveonthedial,orselectandoperateon
othermemories(butnotscanthem).Ifαstation
youwishtotalkwithappearsonthepriority
memory,presstheFITswitchmomentarily
whilereceivingtheirsignal,tostoppriority
checking.Otherwise,whenαsignalappearson
theprioritymemory,prioritycheckingwill
pauseandthedecimalonthedisplaywillblink.
Prioritymonitoringwillresumeaccordingto
howyousetthescan-resumemode-eitherafter
α5-secondpause,orafterthecarrierdrops(see
page22).Tocancelprioritymonitoringmanu-
ally,press
MR-
Notethatyoucanuseanyothermemoryas
αprioritychannelintheaboveprocedurewhen
youaregoingtobeoperatingindialmode.You
cannot,however,switchfrommemorytodial
operationorvice-versawithoutfirstcancelling
prioritymonitoring(pressing
MR
cancelspriority
Α"Ρ"appearsinthememorybox,andabout

monitoring).Youalsocannotscanduringprior-
everyfivesecondsthedisplayedfrequency

itymonitoring.

27. CTCSSOperation
Thebuilt-intoneencoderfunctioncanbe
in gthetonefrequency.
TocheckorsettheCTCSS
tonefrequency,pressF/W-4
TONEtodisplaythetonefre-
quencyinHz.Tochangethe
tonefrequency,rotatethe
selectorknoborpressthe
microphoneDWNandUPbut-
tonsuntilthedisplayshows
thetonefrequencyyoure-
quire(fromthechoicesin
thetableattheright).Press
TONEtoreturntotheoperat-
ingfrequencydisplayaftercheckingorselect-
ToactivateCTCSSoperationjustpressTONE
whentheoperatingfrequencyisdisplayed.
"εΝC"(encode)appearsatthetopofthedisplay
andthetonegeneratorisactivatedfortrans-
mission.IfyoupressTONEagainwithoutthe
FTS-17Aoption,theencoderturnsoff.Ifthe
FTS-17Aisinstalled,both"εινC"and"DEC"(de-
code)aredisplayedtogetherastonesquelchis
activatedforbothtransmissionandreception
(requiringαmatchingtonefrequencytoopen
thesquelch).PressingTONEoncemoredisables
tonesquelch.
usedtoaccessrepeatersandstationsthatre-
quireαCTCSS(subaudible)tone,bysendingα
tonewheneveryoutransmit.Also,ifyouhave
theFTS-17ACTCSSDecoderUnitoptionin-
stalled,youcansilentlymonitorforcallson
busychannels.Theencodefunctionsuperim-
posesαsubaudibletone(atαfrequencytoolow
tobeheard)onthetransmittedcarrier.The
optional(FTS-17A)decodefunctionmonitors
receiveraudiothroughαnarrowfilteratthe
samesubaudiblefrequency,keepingthe
squelchcloseduntilyoureceiveαmatching
tone.InstallationofOptionsatthebackofthis

YoucanstoredifferentCTCSStones(anden-
manualdescribesinstallationoftheFTS-17A.

code/decodestates)ineachmemoryinthesame
manner(andatthesame
time)asstoringoperating
FΤS-17ΑToneFrequencies(Hz)

frequencies.Later,tochange
67.0

100.0

141.3

203.5

thetoneorstatestoredinα
71.9

103.5

146.2

210.7

memory,justrecallit,reset
74.4

107.2

151.4

218.1

thetonefrequencyorfunc
77.0

110.9

156.7

225.7

tion,andstorethememory
79.7 114.8162.2233.6
again.
82.5 118.8167.9~241.8
85.4 123.0173.8250.3
88.5 127.3179.9
91.5 131.8186.2
94.8 136.5192.8

28. "CTCSSBell"PagingwiththeFTS-17A
CTCSSBelloperationisverysimilartothe
CTCSSencode/decodeoperationjustdescribed,
inthatsubaudibletonesopenthesquelch.How-
ever,ifyouarewaitingforαcall,itissometimes
convenienttohavethetransceiver"ring"toget
yourattention.TheCTCSSBellmodedisplaysα
smallbellabovethe10's-of-MHzfrequency
digitonthedisplay(ortotheleftofthename,
ifdisplayingαmemorybyname).Whenyou
RingerAlertingTone
receiveαmatchingCTCSScall,thesmallbellon
thedisplayblinkstoindicateyoureceivedα
call,andthetransceiverringslikeαtelephone
ifyouhavetheringerenabled(seeboxbelow).
ToactivatetheCTCSSBell:
0Tunetothedesiredfrequencyormemory.
0SelectαCTCSStonefrequencyusingtheF/W
andTONEbuttonsasdescribedonthepre-
viouspage,ifyouhavenotalready.
Youcancontrolthewaythetransceiverringswheneitherαselectivecall(CTCSSBell,orDTMF
Page)isreceived.Youcansettheringertosounddifferentlyforeachofthesemodes.Tocheck
orchangethestateoftheringer,pressandholdF/Wfor1/2-second,thenpress
έύύέ.
Thenumber
inthecenterofthedisplayindicatesthelengthofeachring,andcanbesetto0,1,3,5or8
(ringingtonepairs)withtheselectorknobormicbuttons(0=noringing).
Thedisplayalsoshowseither"Ρ"(forDTMFpager)or"b"(forCTCSSBell)inthememorybox,
indicatingtowhichresponsemodethedisplayedringerlengthsettingapplies.Pressρ"RΙtodisplay
andallowchangingtheotherτηοde'sringersetting.
Theremayalsobeαletter"S"displayedjustabovetheVOLcontrol.Ifpresent,theringerissetto
ringonlyonce(singlering)whenαcallisreceived.Ifitisnotdisplayed,theringerwillsound
whenαcallisreceived,andevery2minutesthereafteruntilresetbythePTT,orcorresponding
tonebutton.PresstheF/Wbuttontotogglebetweensingleandmultipleringing.

29. 0Whenyouexpecttoreceivecallsfromsta-
tionsusingtonesquelch(decoding,orCTCSS
Bellattheirend),activatetonesquelchen
code/decodeoperationasdescribedabove,so
theywillnotmissyoursignalwhenyouturn
offtheCTCSSBelllatertoreply.
0

PressF/W-i
BELL
toactivateCTCSSBellpag-
ing(thesmallbelliconwillappear).
AswithCTCSSdecoding,allcallswithoutα
matchingCTCSStonewillbeignoredbyyour
receiver,butthosewiththematchingtonewill
causethetransceivertoringandthesquelchto
openwhilethecallertransmits.Thebellicon
beginstoblink,andcontinuesuntilyoumanu-
allyresetit(bypressingthePTTswitchto
transmit,retuning,orpressingMR).Notethat
theotherstationdoesnotneedtobeusingthe
Whenyoureceiveαcall,ifyouhavethe
ringerenabled,youwillneedtodisablethe
CTCSSBellfeaturetopreventringingevery
timetheotherstationtransmits:pressF/W-i
CALL
toturnitoff.CAL
TheCTCSSBellsystemisnotmemory-spe-
cific:turningitonoroffaffectsthedialandall
memories.
Note:IfyouactivatetheBellwithouthavingan
FTS-17Ainstalled,itwillringeverytimethe
squelchopens.
DTMFPaging&CodeSquelch
(withtheFRC-6Option)
TheFRC-6optionincludesαDTMFtoneen-
coder/decoderandαdedicatedmicroprocessor
providingpagingandselectivecallingfeatures
underDTMFcontrol.Thepagingandcode
squelchsystemsuse3-digitnumericcodes(000
999),transmittedasDTMF(Dual-Tone,Multi-
Frequency)tonepairs.TheFRC-6haseight
CodeMemoriesinwhichtostore3-digitDTMF
pagingcodes.
CTCSSBellfunctiontocallyou:theycanuse

TheprimaryfunctionoftheDTMFsignal-
normal

lingsystemallowsyourreceivertoremainsi-
lentuntilitreceivesoneofthestored3-digit
functionsoftheirtransceiver.

codes.Thenthesquelchopenssothecalleris
heard,andinthepagingmode,thetransceiver
alsoringslikeαtelephone(ifdesired-seethe
boxonthepreviouspage).Whenyouclosethe
PTTtotransmit,thesamethreeprestored
DTMFcodedigitsaresentautomatically.Inthe
pagingmode,threemoreDTMFdigitsarealso

30. sent,representingyourpersonalstationidenti-
fication.
TheDTMFpagingandcodesquelchsystems
areselectedbythe
CODE
button.Either"PAGE"or
"CODE"appearsatthetopofthedisplaywhen
DTMFpagingorcodesquelchisactivated,re-
spectively.
selected3-digitcode.Afteryoureceivethe
tones,yoursquelchopensandstaysopendur-
ingtheirtransmission.
Tousethecodesquelchmode,youmustfirst
storeandthenmanuallyselecttheoneCode
Memoryholdingthe3-digitDTMFcoderequired
toopenbothyoursquelchandthatoftheother
station(asdescribedonthefollowingpages).
Also,inthecodesquelchmode,CodeMemories
1--7alwaysfunctionthesame-thedistinc-
tionsandspecialsettingsdescribedbelowfor
thepagingmodedonotapply.
Ineithercodesquelchorpagingmodes,any
DTMF-equippedstationcancallyou(theycan
useαDTMFkeypadtosendthethreedigitsif
youareincodesquelchmode,orsixdigitsifyou
areinpagingmode).
DTMFPaging
IntheDTMFpagingmode,youcanreceive
CodeSquelch

signalsthatareprefixedwithanyofυρtoseven
DTMF
differentpre-stored3-digitcodes,accordingto
Thecodesquelchmodeisverysimple.Both

thewayyouprogramtheCodeMemories.When
youandtheotherstationcommunicateusing

youreceiveαpagingcall,theselectedCode
thesame3-digitDTMFsequence,sentautomat-

Memorychangesautomatically,andthedisplay
icallybytheFT-2400Hatthestartofevery

respondsbydisplayingαCodeMemorynumber
transmission.Yourreceivernormallyremains
(bli nking)inthememorybox,andwiththe
silenttoallsignalsthatarenotprefixedbyyour

3-digitDTMFcodeofthecallerinplaceofthe
frequencydisplay.ThemeaningoftheCode
Memorynumberand3-digitcodedisplayedde-
pendsonhowyoustoredthepagingcode:
IndividualCodes
ThesearepersonalIDcodestoidentifyeach
stationuniquely.Youstoreoneoftheseforyour
ID,inCodeMemory1.Youcanstoreuptosix
otherIndividualCodesofstationsyoucall
often,inCodeMemories2--7.Whensomeone
elsetransmitsyourIndividualCodeyourdis-
playshowsCodeMemory"0"blinkinginthe
memorybox,withtheotherstation'sIndividual

31. Codeappearinginplaceoftheoperatingfre-

Remember,withcodesquelchoperation(but
quency,soyoucanseewhocalled.

notwithpaging),youcanonlyreceiveαcallon
thecurrently-selectedCodeMemory,andthe
GroupCodes

displaydoesnotchange,northeringersound,
whenαcallisreceived.Soforcodesquelch,as
mentionedbefore,theIndividual/Groupdis-
tinctiondoesnotapply(althoughyoumuststill
storethe3-digitCodeMemories).
Thistypeofcodeidentifiesαgroupofsta-
tions.YouwouldgenerallyshareαGroupCode
withotherclubmembersorfriends.Whenyou
receiveαcallwithαGroupCodetheCodeMem-
orynumber(2-7)inwhichyoustoredthat
3-digitGroupCodeappearsblinkinginthe
memorybox,withthecorresponding3-digit
Codenumber(inwhichyoustoredthatcode)to
theright.
NotethatforαGroupCode,thedisplaydoes
notshowtheIDandcodeofthecaller,butthose
ofthegroupinstead.CodeMemories2--7can
beusedtostoreeitherIndividualCodes(for
callingpurposesonly)orGroupCodes(forboth
callingandreceiving),asyoudesire.
Wheneitheranindividualpagedirectedto
you,orαcalltoαgroupisreceived,thePAGE
indicatorstartsblinking,andcontinuesuntil
youresetit(unlessyouhaveactivatedtheαυtο-
transpondfeature,describedintheboxonpage
31).Thisisconvenienttoletyouknowifsome-
onecalledwhileyourattentionwaselsewhere.
Also,theringersoundsonce,oreverytwomin-
utes,accordingtohowyouhaveitset(page26).
StoringCodeMemories
Thefirstthingtodobeforeusingthepaging
orcodesquelchsystemsistostoreyourIndivid-
ualCodeinCodeMemory1.
ΟActivatetheDTMFCodeMemorydisplay
bypressingF/W-)~
".
ThecurrentCode
CODE
Memorynumberappearsblinkinginthe
memorybox,andthefrequencydisplayis
replacedbythecorresponding3-digitDTMF
Code("000",ifnotusedbefore).
0TurntheselectorknobtoselectCodeMem-
ory1(theCodeMemorydigitcanbesetto0
---7,with0being"read-only",and2--7pro
grammablewithgrouporotherindividual's
IDs).CodeMemory1isforyourpersonal
DTMFpagingIDCode.
ΟPresseitherthe
Ρ"τ
buttonortheUPbutton
onthemicrophone.TheCodeMemorynum-

32. herwillstopblinking,andthefirstdigitof Ge nerally,youstoreanotherstation'sID
the3-digitDΤΜΣCodewillstartblinking.

Codesoyoucanpagethem,butyouprobablydo
notwanttohaveyourtransceiverringingevery
timesomeoneelsecallsthem.Ontheother
hand,youstoregroupcodeswiththeintention
ofreceivinganypagestothegroup(soyouwant
yoursquelchtoopenandthetransceiverto
ring,ifpaging).
13TurntheselectorknobtoselectαDTMFCode
digitbetween0and9,correspondingtothe
firstdigitofthepersonalIDcodeforyour
station(whateveryouwishtouse).
ΟPress
Ρά'
orthemicrophoneUPbuttonagain
tocausethenextdigittotherighttoblink,
andagainturntheselectorknobtoselect
thenextdigitofyourIDcode.
Ο

Repeattheabovesteptosetthelastdigit.
Atthispoint,ifyouwanttogobackand
changeoneofthethreecodedigits,youcan
presstheDWNbuttononthemicrophone.
YourIDcodeisnowstoredinCodeMemory
1.Youcanpress
PAGE'
toreturntothefrequency
displaynow,oryoucanstoreothercodememo-
riesinthesameway:press
pl,Ζorthemicro-
DuringtheCodeMemorystorageprocedure
describedabove,whenstoringCodeMemories
2-7,youhaveanopportunitytodecide
whetheryourtransceivershouldrespondtoin-
comingpagingcallsonαparticularMemory
Code.AtanytimewhenαCodeMemoryis
displayed,youcanpresstheF/Wbuttontotoggle
DTMFsquelchpagingcapabilityonandoff.
Whenon,thatis,whenthedecoderisenabled
toreceivepagingcallswiththisCodeMemory,
anunderbarappearsbeneaththememorybox.
Therefore,ifyouaresettingαGroupCode,
youwanttohavetheunderbaron,andifsetting
anotherstation'sIndividualCode,youwantit
off.Asalreadymentioned,thisdistinctiondoes
notapplytocodesquelchonly(non-paging)op-
eration:codesquelchbehavioristhesame,re-
gardlessofthissetting.
phonebuttonsagaintogettheCodeMemory
numberinthememoryboxblinking,turnthe
selectorknob,andrepeattheabovesteps.How-
ever,beforestoringmoreCodeMemories,you
willneedtoconsideranadditionalfeaturefor
30ΑCodeMemories2-7,describednext.

nentlyonCodeMemory1,sincethisisyourown
Notethattheunderbarisdisplayedperma-

33. ID(thatyouwillalwayswanttoreceivewhen
pagingisactivated).Also,theunderbarnever
appearsonCodeMemory0,sincethisisre-
servedfordisplayoftheIDofincomingpaging
calls.
ReplyingtoαDTMFPage,andResetting
AftersettingαCodeMemory,evenbefore
returningtothefrequency/memorydisplay(by
pressing
PAGE)
,youcanreceiveDTMFPagingcalls
CODE
directedtoyou.AnyDTMF-equippedstationcan
callyoubysendingyour3-digitcode,followed
bytheir3-digitIDCode.Ifyoumonitorwiththe
codesquelchactivated("CODE"displayed),your
squelchwillopenwhenyoureceivethecur-
rently-selectedDTMFCode-evenifitisnotyour
IDinCodeMemory1.Ifyouaremonitoring
withtheDTMFPagingfeatureactivated("PAGE"
displayed,blinkingafterαcallisreceived),the
transceiverreactsaccordingtohowyoustored
yourCodeMemories,asdescribedabove.The
pagingringingtonescanbesetasdescribedin
theboxonpage26,tosuityourpreference.For
paging,youcanalsohaveyourtransceiverre-
spondautomaticallywhenyouarepaged,as
describedintheboxatright.
IfyoupressyourPTTswitchafterreceiving
αcall,theCode(eitherIndividualorGroup)is
to-7i-anspondPaging
Normally,afterαpageisreceived,theindi-
catorblinksonthedisplayuntilyoutrans-
mittorespondtothepage,orpress
PAGE
CODE
MR
toreturntothefrequency/memorydis-
play. Thisletsyouknowifacallcamein
whileyouweredistracted,
but
Itdoesnotlet
thecallerknowwhetheryoureceivedhis
call,ornot.Theauto-transpondfeaturead-
dressesthisproblem.Wheτienabled,your
displaystillchangestoshowMemoryCode
0andthecaller'scode,andtheringerstill
sounds(ίfItIsenabled),buttheradioalso
automaticallytransmitsyour11)Codeback
tothecaller.
Thus
hecantellthatyouare
ίηrange,althoughpossiblyriotabletoan-
swerhispagerightaway.
'1'οactivateauto-transpond,justpressthe
RPTbuttonwhiletheDTMFCodesetting
displayisactive.An"R"appearstotheright
ofthedisplayedMemoryCodewhenthe
featureisenabled.
Notethatαυtο-transpotdisnotCodeMem-
ory-specifιc.itiseitherenabledordisabled
forallpagingcalls(includίnggroups).

34. transmittedautomatically,andifpagingisen-
abled,yourIDCodeissentaswell.
DΤΜFCodeDelay
WhentailingotherstationswithDTMF
pagingorcodesquelch,particularly
throughrepeaters,youmayfindsomeare
unabletoreceiveyourcalls_Thiscanbe
causedbytheirreceiversquelchnotopening
fastenough(afterreceivingyourcarrier)to
allowalloftheDTMFcodestobereceived
anddecoded.Tocorrectthisproblem,you
cansetαlongerdelaybetweenthetimeyour
transmitterisactivatedandthetimethat
thefirstDΤΜFdigitistransmitted.
PressF/W-i
PAGE
ifnecessary,toachvatethe
CODE,
DTΜFCodesettingdisplay(thenumberill
thememoryboxblinks).Thenpress
MR
to
toggletheDΤΜFCodedelaybetween250
and750ms(an"C"appearsattlιeleftside
oftheDTMFCodeWhenthelotiget-delayIs
selected.
Aswiththeauto-tianspnττdfeatιτre,the
DTMFCodeDelayselεctίoυappliestoall
PagingCodes.
Torespondtoanindividualcall,whenyour
displayshowsCodeMemory0,pressingyour
PTTswitchcausesyourtransceivertotransmit
yourIDCodeandtheotherstation'sIDCode
automatically(thatis,theonedisplayedin
CodeMemory0),andresetstheblinkingindi-
cator.Theotherstationwillthenhearαring
fromtheirreceiver,astheirsquelchopens.
Youwillprobablywanttoswitchfrompaging
tocodesquelchmodeoncecontactisestab-
lished,oryourtransceiverwillcontinuetoring
everytimetheotherstationtransmits.Todo
this,bothstationsmustbothhavethesame
3-digitcodeselected,soatleastoneofyouwill
havetochangeyourCodeMemoryselection
(recallthatwhenαDTMFpagingcontactises-
tablished,thetransceiversatbothendsareset
toCodeMemory0,withtheotherstation's
uniqueIDdisplayed).IfyouchangeyourCode
MemoryselectiontoCodeMemory1,itwill
thenmatchhisCodeMemory0,andallhewill
havetodoisswitchfrompagingtocodesquelch
mode.
Todothis,afteryouhaveexchangedinitial
pagingcalls,press
Cοήέ
twice(tochangefrom
pagingtocodesq
uelchmode),thenF/W-i
PAGE
to
CODE
bringupthecodesettingdisplay,andthenturn
theselectorknoboneclickclockwise(todisplay

35. αblinking1inthememorybox).If,whileyou

willopenthesquelchofbothstations.There-
weredoingthis,hejustchangedfrompagingto

fore,atthestartofeachtransmission,youmust
codesquelchmode,whenyouagaintransmithe

waitαsecondortwoafterpressingthePTT
shouldhearyou,andyouhearhim,withoutthe

switchfortheDTMFcodetobesentandhis
ringing.

squelchtoopenbeforeyoustartspeaking.
WithCodeSquelchactivatedinthismanner,
youwillhearthreeDTMFcodedigitsatthestart
ofeachofhistransmissions,andyoursetwill
alsotransmitthesamethreedigitswhenyou
pressyourPTTswitch.Thesedigitsarethose
storedinthecurrentCodeMemory,andthey
Whenyoufinishyourconversation,toreac-
tivateDTMFCodePaging,press
PAGE
twiceso
CODE
that"PAG"isagaindisplayed.

36. AlthoughbasicoperationoftheFT-2400His
simple,someofthenewerfeaturesmayseem
somewhatcomplicatedatfirst.Thesmallnum-
berofcontrolsbeliesthevarietyoffeaturesthat
areavailable,andsomebuttonshavemore
functionsthanareindicatedbytheirlabels.So
itisnotdifficulttogetlost,atleastuntilyou
havehadthechancetofamiliarizeyourself
withallofthefeatures.Thissectionprovides
sometipstohelpyounavigatethevariousdis-
playandbuttonmodes.
Ifthedisplayshowsnothingatall,pushthe
powerswitch,andcheckthepowersupplycon-
nectionsandthefuseinthepowercablepigtail.
Ifthefuseisblown,youwillneedtofindoutand
correctthecausebeforereplacingit.Replace
thefuseonlywithoneofthesametypeand
capacity:15-Α,fast-blow.
InCaseofProblems
MainFrequencyDisplay
IN
Ι_Ι"

1ΙΙS
f-1r-1
U.Γ11-1Ι-1
RepeaterShift&ARS-pressRPT
CTCSS Freq.&Beeper -pressΤΟΝΕ
SP-
Thedisplayusuallytellsαlotaboutthecur-

Ι

Ι"F.9
rentstateofoperation.WiththeFRC-6option
Ste p&ScanResume-pressΑ/Ν
installed,thedisplaycantakeonmanydiffer-
entstates.Mostoftheseareshownattheright,

_
togetherwiththebuttontopressineachcaseto

E
returntothemain(operatingfrequency)dis-

ίΙ"Ι~Ι

Ι
play.Youwillalsoseeα(programmable)4-letter
worddisplayedinplaceoffrequencywhenα

DTMFCodeSetting(option)-pressPAGE

37. namedmemoryisdisplayed.Pressing
sτέΡ
will

Ifyoustillcannotenterdata,checktoseeif
displaythefrequency.Exceptforthemainfre-

the"TX"indicatorneartheupperleftofthe
quencyandthememorynamedisplays,mostor

displayison,indicatingthatthetransceiveris
alloftheotherbuttonswillbedisabledanyway.

transmitting.ReleasingthePTTswitchshould
returnthesettoreceive.Ifstillnothinghap-
Itiswellworthwhiletostudythemainfre-

pens,switchthetransceiveroff,andthenback
quencydisplaydiagramonpage6carefully.
on.
Thisdisplayisthebasisforbasicoperation.
Forexample,ifthefrequencydisplaychanges
unexpectedlywhenyoutransmit(orif"Err"
appears),checkforαsmall"+"or"-"atthetop
center,indicatingthatrepeatershiftisactive,
butthattheresultingtransmitfrequencyisout
ofrange.
Ifthedisplayshowsallsegmentsatthesame
time,orshows"C-Rx"andyoucannotturnthe
setoff,youmayhaveinadvertentlystarted
memorycloning-presstheΡΤΤswitch(the
displaywillchangeto"Err",andthenhitthe
powerswitchtoreturntonormaloperation.
Ifthemainfrequencyormemorynamedis-

Asαlastresort,ifyouareunabletogain
playisvisible,butpressingαbuttonappearsto

sensiblecontrolofthetransceiver,resetthe
donothing,firstcheckfor"LOCI"atthetopleft

CPUasdescribedinthenextsection.
cornerofthedisplay.Ifyouseeit,pressF/W-4

Toavoidconfusionresultingfrominadver-
9°Κtounlockthebuttons.Otherwise,youcan te ntbuttonpresses,setthekeypadlockon
pressthe
Μπ
button,whichwillusuallytermi-

(PressF/W~
Lόέκ)
ifyouleavethetransceiver
nateanypartiallyenteredcommands.

unattendedwhileitison.Remembertosetthe
lockbackoffwhenyouwishtoenterdata.
Ifthenumberinthememoryboxisblinking,
thedisplayisshowingαDTMFMemoryCode.

ResettingtheCPU
ThisoccursspontaneouslywhenαDTMFpageis

TheFT-2400Hhasthreelevelsofresetting:
received.Press
PAGE
toreturnthefrequencydis-

memory-only,all-settingsoftreset,andall-set-
playtonormal.

tinghardreset:

38. To
resetonlythememories,holdtheF/Wand
MRbuttonswhileswitchingtheseton.Yourstep,
repeatershiftandothersettingwillbere-
tuaniend,whilethememorieswillbecleared.
Toclearallsettingtotheirfactorydefaults,
hold
MR
and
sir
whileturningthetransceiver
on.Thenturnthetransceiveroffandholdonly
MR
whileswitchingitbackonagain.Ifforsome
reasonthisfails,youcanperformαhardreset
byremovingthetopcover,andshortingacross
thesplitsolderpadonthecircuitboardexposed
ontheinsideofthefrontpanel,justbehindthe
topleftcornerofthedisplay.Thenhold
MR
while
MemoryCloning
Allmemorydatastoredinonetransceiver
canbemovedtoanotherbyconnectingthemi-
crophonejackstogetherwiththeoptionalclon-
ingcable,availablefromyourYaesudealer.
ΟTurnbothtransceiversoff,andconnectthe
micjackstogether.PressandholdtheF/W
buttonswhileturningthepowerswitches
on.Allsegmentsofthedisplayswillbeon.
ΟPressthe
~ιαΡ
buttononthedestination
transceiver(thedisplaywillshow"C-Rx"in
placeoffrequency).
switchingon.
ΟPresstheRPTbuttononthesourcetrans-
ceiver.Thedisplaywillshow"C-Τχ"while
thedataisbeingtransferred,andshould
thenreturntonormal.If"Err"appearson
thedestinationdisplay,turnbothtransceiv-
ersoffandtryagain.Ifthedisplayofthe
destinationtransceiverremainsallblankor
allon,andyoucannotturnthetransceiver
off,pressthePTTswitch(thedisplaywill
changeto"Err",andthenhitthepower
switchtoreturntonormaloperation.Re-
checkyourcable,andthentryagain.
MemoryBackup
Normally,αlithiumbatteryinsidethetrans-
ceiverretainsallsettingsandmemorieswhile
powerisoffordisconnected.Ifthetransceiver
loosesitsmemories(butstilloperatesprop-
erly),thisbatteryshouldbereplaced.
Thefrontpanelmustberemovedtogain
accesstothebattery,whichisontheinsideof
thefrontpanel,justbehindthememoryboxon
thedisplay.Itshouldbereplacedonlybean
Yaesu-authorizedtechniciantoensurethatitis

ΟTurnbothtransceiversoffandremovethe
installedproperly.

cloningcable.

39. PacketRadio

InternalAdjustments
PacketradiooperationwiththeFT-2400H

Insidethetopcoverareseveraladjustments
requiresαlater-modelWewithαPLL-tpeDCD

thatyoumaywishtomaketomatchthetrans-
circuit,sincethereisnoreadily-accessible

ceivertoyouroperatingrequirements(thetop
squelchstatusoutputfromtheradiototellthe

covercanberemovedasdescribedonthenext
tncwhenthechannelisclear.Connectionsbe-

page).Youcanadjustthevolumeofthebutton
tweenthetncandthemicrophonejackofthe

beeper(relativetothefrontpanelVOLcontrol)
FT-2400Hcanbemadeasindicatedinthetable

bytheBEEPtrimmer,andmediumandlow
below.

poweroutputlevelsbytheMIDandLOWtrim-
Youmustusean8-pinmodulartelephone-

mersifyouhaveαVHFwattmeter.Seethe
typeplugforthemicjackconnections.Use

Cautionboxbelow.
shieldedcablefortheaudiolines,andkeepitas
shortaspossibletoavoidRFpickup.
"RADIO"Jack(FT-2400H
onTNC

MicJack
Comment
ReceiverAudioΙ

pin2

8ohms,de-emphasized
in
PTTout

pin3

groundtotransmit
TransmitAudio

pin4

400ohms,pre-emphasized
out
Ground

pin5

Audiosignalground
Caution!
Theothertrimmersinsidethefront
Ι?arae!shntιlλtτπtheadjtιsteλlvithntιtthe
propertest
equipment.
Ππίιι;socοιιld
ι1e
""
ιιιdepeιfπrιιιαιιcc,oreTcιιιίαηιιιs?e
Ilιetι-ίιιτsCι1ίιcr,ιιιιιlι1,ίΙlιοίιΙvοιιι.wαι_
rιτιιtι'.1U'kvοιιri'αesιιιΙι°αΙcιfιιrhelpί1
1'ΠιιιιeίιΙίιιιι'othcι-ιιιΙjιιstιιteιιtsmade.

40. InstallationofOptions
Thissectiondescribestheinstallationproce-

severalturns.Lifttherearedgeofthecover
duresfortheFRC-6DTMFPagerandFTS-17A

slightly,thenremoveit.
ToneSquelchUnit.Theseoptionsareavailable

ReferringtoFigure2,notetheaccessory
fromyourYaesudealer.

mountinglocations.IfinstallingtheFTS-
TheFRC-6providesDTMFpaging/selcallfea-

17Α,removethepaperfromthedouble-
turesusing3-digitDTMFstationIDcodes.

sidedadhesivepad.
SevencodememoriesstoreyourIDcodeplus

0
Carefullyalignthepinswiththewhitecon-
thoseofsixfrequently-calledstationsorgroups.

nectorsontheboard,andpresstheunit(s)
Controlisprovidedthroughthefrontpanelof

intoplace.TheFTS-17Agoesoverthe
thetransceiver.Seethe"Operation"chapterfor

smallerconnector,andtheFRC-6overthe
operationaldetails.

largerone.
TheFTS-17Aincludesαdecoderfor38ΕΙΑ.

0
Thefactoryadjuststheoutputtonelevels
standardsubaudibleCTCSStones,programma-
blefromthefrontpaneloftheFT-2400H.It

(thesmalltrimmersaccessiblethroughthe
providessilentmonitoringofbusychannels

optionboards)fortheproperdeviation,so
whenactivatedbytheENCode/DECodeTone

theyshouldrequirenofurtheradjustment.
Squelchfunction.

C3Replacethetopcoverandfourscrewsre-
0DisconnecttheDCpowercable,andrefer-

movedinthefirststep,andrememberto
ringtoFigure1,removethefourscrews

tightenthescrewatthebackofthetop
affixingthetopcover(twooneitherside),

panelfromtherear.
andloosentheoneontopfromthebackby

41. Tag
Figure2

42. YAESUMUSENCO.,LTD.
C.P.O.BOX1500,TOKYO,JAPAN
YAESUU.S.A.
17210EdwardsRd.,Cerritos,California90701,U.S.A.
YAESUEUROPEB.V.
Snipweg3.1118ΑΑSchiphol,TieNetherlands
Π
YAESU
Ε03131000(1080-ΒΚ)