INSTRUCTION MANUAL
© B62-1981-00 (K, M)
09 08 07 06 05 04 03 02 01 00
144 MHz FM TRANSCEIVER
TH-255A
Thank You
We are grateful you decided to purchase this
Kenwood FM
transceiver.
Kenwood always provides Amateur Radio products
which surprise and excite serious hobbyists. This transceiver is no
exception.
Kenwood believes that this product will satisfy your
requirements for both voice and data communications.
FeaTures
·
Compact design
·
Aluminum die-cast chassis
·
High output power (up to 5 W operation)
·
100 memory channels or 50 channels with names
·
Long operation period with a Ni-MH battery pack (optional)
WriTing ConvenTions FolloWed in This Manual
The writing conventions described below have been followed to
simplify instructions and avoid unnecessary repetition.
Instruction
Action
Press
[KEY].
Momentarily press
[KEY].
Press
[KEY] (1s).
Press and hold
[KEY] for 1 second or longer.
Press
[F], [KEY].
Press the
[F] key to enter Function mode,
then press
[KEY] to access its secondary
function.
Press
[KEY] + Power
ON.
With the transceiver power OFF, press and
hold
[KEY] while turning the transceiver
power ON.
Notices to the User
Governmentlawprohbtstheoperatonofunlcensedrado
transmtterswthntheterrtoresundergovernmentcontrol.
Illegaloperatonspunshablebyfneand/ormprsonment.
Referservcetoqualfedtechncansonly.
Safety:Itsmportantthattheoperatorsawareof,and
understands,hazardscommontotheoperatonofany
transcever.
PrecaUtioNs
· Donotchargethetransceverandbatterypackwhentheyarewet.
· Ensurethattherearenometallctemslocatedbetweenthe
transceverandthebatterypack.
· Donotuseoptonsnotspecfedby
Kenwood.
· Ifthede-castchasssorothertransceverpartsdamaged,donot
touchthedamagedparts.
· Ifaheadsetorheadphonesconnectedtothetranscever,reduce
thetranscevervolume.Payattentontothevolumelevelwhen
turnngthesquelchoff.
· Donotplacethemcrophonecablearoundyourneckwhlenear
machnerythatmaycatchthecable.
· Donotplacethetransceveronunstablesurfaces.
· Ensurethattheendoftheantennadoesnottouchyoureyes.
· Whenthetransceversusedfortransmssonformanyhours,the
radatorandchassswllbecomehot.Donottouchtheselocatons
whenreplacngthebatterypack.
· Donotmmersethetranscevernwater.
· Alwaysswtchthetransceverpoweroffbeforenstallngoptonal
accessores.
Turnthetransceverpoweroffnthefollownglocatons:
· Inexplosveatmospheres(nflammablegas,dustpartcles,
metallcpowders,granpowders,etc.).
· Whletakngonfuelorwhleparkedatgasolneservcestatons.
· Nearexplosvesorblastngstes.
· Inarcrafts.(Anyuseofthetranscevermustfollowthe
nstructonsandregulatonsprovdedbythearlnecrew.)
· Whererestrctonsorwarnngsarepostedregardngtheuseof
radodevces,ncludngbutnotlmtedtomedcalfacltes.
· Nearpersonsusngpacemakers.
· Donotdsassembleormodfythetransceverforanyreason.
· Donotplacethetransceveronorneararbagequpmentwhle
thevehclesrunnng.Whenthearbagnflates,thetranscever
maybeejectedandstrkethedrverorpassengers.
· Donottransmtwhletouchngtheantennatermnalorf
anymetallcpartsareexposedfromtheantennacoverng.
Transmttngatsuchatmemayresultnahgh-frequencyburn.
· Ifanabnormalodororsmokesdetectedcomngfromthe
transcever,swtchthetransceverpoweroffmmedately,
removethebatterypackfromthetranscever,andcontactyour
Kenwood dealer.
· Useofthetransceverwhleyouaredrvngmaybeaganst
traffclaws.Pleasecheckandobservethevehcleregulatons
nyourarea.
· Donotexposethetranscevertoextremelyhotorcold
condtons.
· Donotcarrythebatterypack(orbatterycase)wthmetal
objects,astheymayshortthebatterytermnals.
· Whenoperatngthetranscevernareaswherethearsdry,t
seasytobuldupanelectrccharge(statcelectrcty).When
usngaearphoneaccessorynsuchcondtons,tspossblefor
thetranscevertosendanelectrcshockthroughtheearphone
andtoyourear.Werecommendyouuseonlyaspeaker/
mcrophonenthesecondtons,toavodelectrcshocks.
One or more of the following statements may be
applicable:
FCC WARNING
Thsequpmentgeneratesorusesradofrequencyenergy.Changes
ormodfcatonstothsequpmentmaycauseharmfulnterference
unlessthemodfcatonsareexpresslyapprovednthenstructon
manual.Theusercouldlosetheauthortytooperatethsequpment
fanunauthorzedchangeormodfcatonsmade.
INFORMATION TO THE DIGITAL DEVICE USER REQUIRED BY
THE FCC
Thsequpmenthasbeentestedandfoundtocomplywththelmts
foraClassBdgtaldevce,pursuanttoPart15oftheFCCRules.
Theselmtsaredesgnedtoprovdereasonableprotectonaganst
harmfulnterferencenaresdentalnstallaton.
Thsequpmentgenerates,usesandcangenerateradofrequency
energyand,fnotnstalledandusednaccordancewththe
nstructons,maycauseharmfulnterferencetoradocommuncatons.
However,theresnoguaranteethatthenterferencewllnotoccur
napartcularnstallaton.Ifthsequpmentdoescauseharmful
nterferencetoradoortelevsonrecepton,whchcanbedetermned
byturnngtheequpmentoffandon,theusersencouragedtotryto
correctthenterferencebyoneormoreofthefollowngmeasures:
· Reorentorrelocatetherecevngantenna.
· Increasetheseparatonbetweentheequpmentandrecever.
· Connecttheequpmenttoanoutletonacrcutdfferentfromthat
towhchthereceversconnected.
· Consultthedealerfortechncalassstance.
FCC REGULATIONS REGARDING THE USE OF THE
EMERGENCY CHANNEL
Thecommuncatonsmustbeforthepurposeofsolctngor
renderngassstancetoatraveler,orforcommuncatngnan
emergencypertanngtothemmedatesafetyoflfeorthemmedate
protectonofproperty.