Kenwood USA 229900 800/900MHz Transceiver User Manual Manual

Kenwood USA Corporation 800/900MHz Transceiver Manual

Contents

Manual

© B62-1483-10 (K, K2, K3, K4)09 08 07 06 05 04 03 02 01INSTRUCTION MANUALVHF FM TRANSCEIVER/UHF FM TRANSCEIVERTK-280/ TK-380800 MHz FM TRANSCEIVER/900 MHz FM TRANSCEIVERTK-480/ TK-481
iTHANK YOUWe are grateful you chose KENWOOD for your landmobile radio applications. We believe this easy-to-usetransceiver will provide dependable communications tokeep personnel operating at peak efficiency.KENWOOD transceivers incorporate the latest inadvanced technology. As a result, we feel strongly thatyou will be pleased with the quality and features of thisproduct.MODELS COVERED BY THIS MANUAL• TK-280: VHF FM Transceiver• TK-380: UHF FM Transceiver• TK-480: 800 MHz FM Transceiver• TK-481: 900 MHz FM TransceiverNOTICES TO THE USER◆Government law prohibits the operation of unlicensed radiotransmitters within the territories under government control.◆Illegal operation is punishable by fine and/or imprisonment.◆Refer service to qualified technicians only.SAFETY: It is important that the operator is aware ofand understands hazards common to the operation ofany transceiver.EXPLOSIVE ATMOSPHERES (GASES, DUST, FUMES, etc.)Turn off your transceiver while taking on fuel, or while parked ingasoline service stations.
iiOne or more of the following statements may be applicable:FCC WARNINGThis equipment generates or uses radio frequency energy. Changesor modifications to this equipment may cause harmful interferenceunless the modifications are expressly approved in the instructionmanual. The user could lose the authority to operate this equipmentif an unauthorized change or modification is made.INFORMATION TO THE DIGITAL DEVICE USER REQUIRED BY THE FCCThis equipment has been tested and found to comply with the limitsfor a Class B digital device, pursuant to Part 15 of the FCC Rules.These limits are designed to provide reasonable protection againstharmful interference in a residential installation.This equipment generates, uses and can generate radio frequencyenergy and, if not installed and used in accordance with theinstructions, may cause harmful interference to radio communications.However, there is no guarantee that the interference will not occur in aparticular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determinedby turning the equipment off and on, the user is encouraged to try tocorrect the interference by one or more of the following measures:•Reorient or relocate the receiving antenna.•Increase the separation between the equipment and receiver.•Connect the equipment to an outlet on a circuit different from thatto which the receiver is connected.•Consult the dealer for technical assistance.ATTENTION (U.S.A. Only):The RBRC Recycle seal found on KENWOOD nickel-cadmium (Ni-Cd) battery packs indicates KENWOOD’svoluntary participation in an industry program to collectand recycle Ni-Cd batteries after their operating life hasexpired. The RBRC program is an alternative todisposing Ni-Cd batteries with your regular refuse or inmunicipal waste streams, which is illegal in some areas.For information on Ni-Cd battery recycling in your area, call (toll free)1-800-8-BATTERY (1-800-822-8837).KENWOOD’s involvement in this program is part of our commitment topreserve our environment and conserve our natural resources.
iiiCONTENTSUNPACKING AND CHECKING EQUIPMENT................... 1Supplied Accessories ...................................... 1PREPARATION .................................................. 2Installing/ Removing the Battery Pack ..................... 2Installing the Antenna ..................................... 3Installing the Belt Clip ..................................... 3Installing the Cover over the Universal Connector ..... 4Installing the (Optional KMC-25) Speaker/ Microphone ... 4GETTING ACQUAINTED ........................................ 5Display ...................................................... 7PROGRAMMABLE AUXILIARY FUNCTIONS ................. 8OPERATION OVERVIEW .......................................10Trunking Format ...........................................10Conventional Format (TK-280/ TK-380 Only) .......... 10OPERATING BASICS ...........................................11Switching Power ON/ OFF ................................11Adjusting the Volume .....................................11Selecting a System/ Group/ Channel ...................11Time-out Timer (TOT) ....................................12TRUNKED OPERATION (Trunking Format) ..................13Placing a Dispatch Call ..................................13Receiving a Dispatch Call ................................13Placing a Telephone Call (Keypad Models Only) ......14Receiving a Telephone Call (Keypad Models Only) ... 14CONVENTIONAL OPERATION (Trunking Format) ...........15Transmitting ...............................................15
ivReceiving ..................................................15SYSTEM SCAN (Trunking Format) ...........................16Scanning Trunked Systems ..............................16Scanning Conventional Systems ........................16Scan Lockout ..............................................17Scan Revert ................................................17GROUP SCAN (Trunking Format) ............................18CONVENTIONAL OPERATION (Conventional Format) ..... 19Transmitting ...............................................19Receiving ..................................................19SCAN (Conventional Format) ................................20Priority Scan ...............................................202-TONE SIGNALLING (Conventional Format) ..............21FleetSync™: ALPHANUMERIC 2-WAY PAGING FUNCTION ... 22Key Functions .............................................22Selcall (Selective Calling) ...............................23Status Message ...........................................25Optional Short Messages Feature ......................27DTMF (DUAL TONE MULTI FREQUENCY) CALLS ..........28Making a DTMF Call (Keypad Models Only) ........... 28DTMF Signalling ..........................................30DBD (Dead Beat Disable) ................................30AUDIBLE USER FEEDBACK TONES ..........................31
1UNPACKING AND CHECKING EQUIPMENTNote: The following unpacking instructions are for use by yourKENWOOD dealer, an authorized KENWOOD service facility, or thefactory.Carefully unpack the transceiver. We recommend thatyou identify the items listed in the following table beforediscarding the packing material. If any items are missingor have been damaged during shipment, file a claim withthe carrier immediately.■Supplied AccessoriesmetI rebmuNtraP ytitnauQannetnA 084-KTXX-6360-09T 1184-KTXX-0460-09TiN- kcapyrettabdC2K,K184-KT/084-KT()ylnosepytXX-0090-90W1pilctleBXX-8560-92J1pacrotcennoclarevinUXX-3630-90B1teswercSXX-4002-99N1launamnoitcurtsnIXX-3841-26B1Antenna Ni-Cd batterypackBeltclip ScrewsetUniversalconnector cap
2PREPARATION1Match the four groovesof the battery pack withthe correspondingguides on the back ofthe transceiver.2Slide the battery packalong the back of thetransceiver until therelease latch on thebase of the transceiverlocks.3To remove the batterypack, pull back on therelease latch and slidethe pack away from thetransceiver.■Installing/ Removing the Battery Pack◆Do not recharge the battery pack if it is already fully charged.Doing so may cause the life of the battery pack to shorten orthe battery pack may be damaged.◆After recharging the battery pack, disconnect it from thecharger. If the charger power is reset (turned on after beingturned off), recharging will start again and the battery packwill become overcharged.◆Do not short the battery terminals or dispose of the batteryby fire.◆Never attempt to remove the casing from the battery pack.
3Screw the antenna into theconnector on the top of thetransceiver by holding theantenna at its base andturning it clockwise untilsecure.■Installing the Belt ClipIf necessary, attach the beltclip using the two supplied3 x 6 mm screws.Note: If the belt clip is notinstalled, its mounting locationmay get hot during continuoustransmission or when left sittingin a hot environment.■Installing the Antenna
4If you are not using theoptional KMC-25 speaker/microphone, install thecover over the univeralconnector using thesupplied 4 x 6 mm screw.■Installing the Cover over the Universal Connector■Installing the (Optional KMC-25) Speaker/ Microphone1Insert the guide of the speaker/ microphoneconnector into the groove of the universalconnector.2Secure the connector in place using the attachedscrew.
5eqwrto!2!0!1iuyGETTING ACQUAINTEDNote: The transceiver is also available without the DTMF keypad (!1).qqqqqAntenna connectorConnect an antenna here.wwwwwRotary encoderRotate this encoder to activate its programmablefunction. (System or Group Up/ Down in TrunkingFormat, and Group or Channel Up/ Down inConventional Format.) For further details, contactyour dealer.Microphone Speaker
6eeeeePOWER switch/ VOLUME controlTurn clockwise to switch ON the transceiver. Rotateto adjust the volume. Turn counterclockwise fully toswitch OFF the transceiver.rrrrrAuxiliary (orange) keyPress to activate its auxiliary function {page 8}.tttttBattery pack release latchPull back on this latch to release the battery pack.See “Installing/ Removing the Battery Pack” on page2.yyyyyPF (Programmable Function) keyPress to activate its auxiliary function {page 8}.uuuuuPTT (Push-To-Talk) switchPress this switch, then speak into the microphone tocall a station.iiiiiPF (Programmable Function) keyPress to activate its auxiliary function {page 8}.oooooTransmit/ Battery low indicatorThis red LED lights during transmission. Ifprogrammed by your dealer, when the battery packpower is low, the LED flashes during transmission.Replace or recharge the battery pack.!0!0!0!0!0 S, A, tttttB, and Csssss keysPress to activate their auxiliary functions {page 8}.!1!1!1!1!1 DTMF keypad (keypad models only)Press the keys on the keypad to send DTMF tones.!2!2!2!2!2 Universal connectorConnect the (optional KMC-25) speaker/ microphonehere. Otherwise, keep the supplied cover in place.
7■DisplaySVCMON SCN LOrotacidnI noitpircseD.srebmunpuorgdna,lennahc,metsysehtsyalpsiDneebevahhcihwsnoitcnufsuoiravsyalpsidoslA.relaedruoyybdemmargorpsilennahcdetcelesehtnehwsraeppA.ytiroirpsademmargorpsademmargorpyekehtnehwsraeppA rotinoM si.desserp.reviecsnartsihtnodesutonsinocisihT.edomnacSgnisuerauoynehwsraeppAsademmargorpyekehtnehwsraeppA rewoPFRoL .desserpsidetcelesehtnehwsraeppa,tamroFgniknurTnInI.sDIenohpeletsademmargorpsipuorggnisuerauoynehwsraeppa,tamroFlanoitnevnoC.noitcnufenoTelbatceleSrotarepOehtsthgiL.egassemaevieceruoynehwsehsalF.yromemkcatsehtniderotssiegassemanehw.srebmunlennahcdna,puorg,metsysehtsyalpsiDdna,puorg,metsysmargorpnacrelaedruoYecalpni,sretcarahc01otpuhtiwsemanlennahcasadesusiyalpsidtsomtfelehT.srebmunfoddanadnatamroFgniknurTni)(rotacidnieteledthgirehT.tamroFlanoitnevnoCni)(rotacidniro)(llaCevitceleSehtrofdesusiyalpsidtsom(relbmarcS _srotacidnidda/eteledehT.noitcnuf)ton/dekcoleratahtslennahc/smetsysehtwohsevitceleS.ecneuqesgninnacsehtfotuodekcolnactahtsnoitcnuflanoitpoerarelbmarcSdnallaCsyalpsidoslA.relaedruoyybdemmargorpebcnySteelFgnisunehwsegassemdeviecer .MONSVCSCNLO
8PROGRAMMABLE AUXILIARY FUNCTIONSKeys r, y, i, and !0 {pages 5 and 6} can be programmedwith the auxiliary functions listed in the following table. Theprogrammable functions are dependant on the operation ofthe transceiver (Conventional or Trunking Format). Contactyour dealer for further details on these functions.Note:◆If “Function” is programmed onto a key, the DTMF keypad (keypadmodels only) can also be used for additional programmable keys.◆Conventional Format is available for only the TK-280 and TK-380models.noitcnuF lanoitnevnoCtamroFgniknurTtamroFleTotuAoNseYXUA1seYseYnwoDlennahCseYoNpUlennahCseYoN)TOB(DIFMTDseYseY)TOE(DIFMTDseYseYretcarahCyalpsiDseYseYycnegremE2seYseYnoitcnuFseYseYnwoDpuorGseYseYpUpuorGseYseYlennahCemoHseYoNpuorGemoHoNseYkcoLyeKseYseYpmaLseYseY)OTS/LCR(yromeMseYseY)LCR(yromeMseYseY)OTS(yromeMseYseY
9noitcnuF lanoitnevnoCtamroFgniknurTtamroFedoMegasseMseYseYrotinoM(ArotinoM))yratnemoM(etumnU seYseYrotinoM(BrotinoM))elggoT(etumnU seYseYreirraC(CrotinoM))yratnemoM(hcleuqS seYseYreirraC(DrotinoM))elggoT(hcleuqS seYseYenoTleSrotarepOseYoNlaideRseYseYoLrewoPFRseYseYnacSseYseYddA/leDnacSseYseYeteleDyraropmeTnacSoNseYSPGdneS3seYseYnoitaunettAPS4seYseYnwoDmetsySoNseYpUmetsySoNseYrelbmarcS5seYseYdnuorAklaTseYoNtcennocsiDLEToNseY1This function can be selected only when the Scrambler/ ANI boardhas not been installed.2This function can be programmed only on key r, the Auxiliary(orange) key.3This function can be selected only when the FleetSync™ enhancedoption and a GPS receiver have been installed.4This function can be programmed only on the microphone PF keys.5This function can be selected only when the Scrambler board hasbeen installed.
10OPERATION OVERVIEWYour dealer can program your transceiver for eitherTrunking Format or Conventional Format.■Trunking FormatThis format can handle up to 32 systems with up to250 groups in each system. The transceiver can beused in both trunked mode and conventional mode.Systems, groups, and their functions areprogrammed by your dealer.■Conventional Format (TK-280/ TK-380 Only)This format can handle up to 250 groups with 250channels in each group. The transceiver can beused only in conventional mode. Groups, channels,and their functions are programmed by your dealer.
11OPERATING BASICS■Switching Power ON/ OFFTurn the Power switch/ Volume control clockwise toswitch the transceiver ON.Turn the Power switch/ Volume controlcounterclockwise to switch the transceiver OFF.If the Radio Password function is programmed,“PASSWORD” will appear on the display when thepower is turned ON. To unlock the transceiver, enterthe password, then press the S key. If you enter thewrong password, an error tone sounds and thetransceiver remains locked. The password cancontain a maximum of 6 digits.■Adjusting the VolumeRotate the Power switch/ Volume control to adjustthe volume. Clockwise increases the volume andcounterclockwise decreases it.■Selecting a System/ Group/ ChannelSelect the desired system and group (TrunkingFormat) using the encoder and the keys programmedwith System or Group Up/ Down.Select the desired group and channel (ConventionalFormat) using the encoder and the keys programmedwith Group or Channel Up/ Down.
12■Time-out Timer (TOT)The purpose of the Time-out Timer is to prevent anycaller from using a channel for an extended period oftime.If you continuously transmit for a period of time thatexceeds the programmed time, the transceiver willstop transmitting and an alert tone will sound. Tostop the tone, release the PTT switch.Your dealer can program the TOT time in the range of15 seconds to 10 minutes.
13TRUNKED OPERATION (Trunking Format)■Placing a Dispatch Call1Select the desired system and group using theencoder and the System or Group keys.2Press the PTT switch.3If a tone does not sound, communication ispossible; start speaking into the microphone.Release the PTT switch to receive.•For best sound quality at the receiving station, holdthe microphone approximately 1.5 inches (3 ~ 4 cm)from your mouth.■Receiving a Dispatch Call1Select the desired system and group using theencoder and the System or Group keys. (If theScan function has been programmed, you canswitch it ON or OFF as desired.)2When you hear the dispatcher’s voice, readjustthe volume as necessary.
14■Placing a Telephone Call (Keypad Models Only)1Select the desired system and group using theencoder and the System or Group keys.2Press and hold the PTT switch for approximately1 second to ensure a connection.•Confirm that there is a dial tone after you release thePTT switch.3Press and hold the PTT switch, then dial usingthe front panel keypad.•After dialing, release the PTT switch and wait for aresponse from the called party.4When the called party responds, press the PTTswitch and speak into the microphone. Releasethe PTT switch to receive.•Only one person can speak at a time.5To end the call, press and hold the PTT switch,then press the # key or the key programmed asTel Disconnect.■Receiving a Telephone Call (Keypad Models Only)1Select the desired system and group using theencoder and the System or Group keys. (If theScan function has been programmed, you canswitch it ON or OFF as desired.)•A ringing tone will sound when a call is received.2Press and hold the PTT switch to speak, andrelease it to receive.•Only one person can speak at a time.3To end the call, press and hold the PTT switch,then press the # key or the key programmed asTel Disconnect.
15CONVENTIONAL OPERATION (Trunking Format)■Transmitting1Select the desired system and group using theencoder and the System or Group keys.2Press the key programmed as Monitor to checkwhether or not the channel is free.•If the channel is busy, wait until it becomes free.3Press the PTT switch and speak into themicrophone. Release the PTT switch to receive.•For best sound quality at the receiving station, holdthe microphone approximately 1.5 inches (3 ~ 4 cm)from your mouth.■Receiving1Select the desired system and group using theencoder and the System or Group keys. (If theScan function has been programmed, you canswitch it ON or OFF as desired.)2When you hear the dispatcher’s voice, readjustthe volume as necessary.
16SYSTEM SCAN (Trunking Format)If the Scan function is programmed, systems can bescanned by pressing the key programmed as Scan.When the Scan key is pressed, the SCN indicator and“-SCAN-” or the revert system/ group number, appear onthe display and scanning starts. The systems not lockedout of the scanning sequence are scanned.When a call is received, scanning stops and the systemand group digits appear. Press the PTT switch andspeak into the microphone to respond to the call. Thetransceiver will continue scanning after a predeterminedtime delay if the PTT switch is released and no furthersignal is received.■Scanning Trunked SystemsWhen scanning trunked systems, the revert groupsand the groups not locked out of the scanningsequence are scanned. See “GROUP SCAN” onpage 18.■Scanning Conventional SystemsWhen scanning conventional systems, the revertgroups and the groups not locked out of the scanningsequence are scanned. See “GROUP SCAN” onpage 18.
17■Scan LockoutIf a programmable auxiliary key is programmed withScan Del/Add, each system can be locked out of thescan sequence manually. The delete indicator ( s )will appear on the display when the selected systemis locked out.■Scan RevertYou can select revert systems and groups using theencoder and the System or Group keys.Four types of Scan Reverts which can beprogrammed by your dealer are available:•Last Called Revert: The last system/ groupreceived is assigned as the new revert systemand group.•Last Used Revert: The last system/ groupresponded to is assigned as the new revertsystem and group.•Selected: The last system/ group selected isassigned as the new revert system and group.•Selected + Talkback: If the system/ group hasbeen changed during Scan, the newly selectedsystem/ group is assigned as the new revertsystem and group. The transceiver “talks back”on the current receive group.
18GROUP SCAN (Trunking Format)Group Scan is available for both trunked andconventional systems. This feature is useful when morethan one group is programmed in a system. GroupScan is set by your dealer on request. It scans therevert groups as well as groups that are allowed to bescanned.When a call is received, the group indicator shows thegroup number, and that group becomes the revertgroup. Simply press the PTT switch to respond to thecall.You can also perform Group Scan while using a prioritychannel. Please contact your dealer for informationconcerning Priority Scan.
19CONVENTIONAL OPERATION (Conventional Format)■Transmitting1Select the desired group and channel using theencoder and the Group or Channel keys.2Press the key programmed as Monitor to checkwhether or not the channel is free.•If the channel is busy, wait until it becomes free.3Press the PTT switch and speak into themicrophone. Release the PTT switch to receive.•For best sound quality at the receiving station, holdthe microphone approximately 1.5 inches (3 ~ 4 cm)from your mouth.■Receiving1Select the desired group and channel using theencoder and the Group or Channel keys. (If theScan function has been programmed, you canswitch it ON or OFF as desired.)2When you hear a caller’s voice, readjust thevolume as necessary.
20SCAN (Conventional Format)If the Scan function is programmed, groups or channelscan be scanned by pressing the key programmed asScan. Scan can be used as either Single Scan or MultiScan. Single Scan monitors only the channels of asingle group. Multi Scan monitors all channels of everygroup. When the Scan key is pressed, the SCNindicator and “-SCAN-” or the revert group/ channelnumber, appear on the display and scanning starts.When a call is received, scanning stops and the groupand channel digits appear. Press the PTT switch andspeak into the microphone to respond to the call. Thetransceiver will continue scanning after an adjustabletime delay, if the PTT switch is released, and no furthersignal is received.When the displayed group is not locked out of thescanning sequence, the add indicator ( ) will appear onthe display.■Priority ScanThe priority channel must be programmed in orderfor Priority Scan to function.The transceiver will automatically change to thepriority channel when a signal is received on it, evenif a signal is being received on a normal channel.The indicator appears when the displayed channelis the priority channel.
212-TONE SIGNALLING (Conventional Format)2-Tone Signalling is either activated or deactivated byyour dealer.2-Tone Signalling only opens the squelch when thetransceiver receives two tones corresponding to thoseset up in the transceiver. When the squelch opens, youwill be able to hear the caller without any further action.After a correct 2-Tone signal is received and the squelchopens, pressing the key programmed as Monitor willcancel the connection.If your dealer programmed Transpond for 2-ToneSignalling, your transceiver will automatically send anacknowledgment signal to the station that called youwith the correct 2-Tone signal. Transpond does notfunction when you are called as a Group call.If your dealer programmed Tone Alert for 2-ToneSignalling, your transceiver will emit a beep when thecorrect 2-Tone signal is received.Note: This transceiver is only capable of decoding 2-Tone Signals. Itcannot encode a 2-Tone Signal.
22FleetSync™ is an Alphanumeric 2-way Paging Function,and is a protocol owned by KENWOOD Corporation.FleetSync™ enables a variety of paging functions onyour transceiver, some of which depend on dealerprogramming.■Key FunctionsFleetSync™: ALPHANUMERIC 2-WAY PAGING FUNCTIONSelcall Mode 1Status ModeStack ModeNew MessageDisplay ModeNormal Operating ModePress Aor receivea SelcallReceivea newmessageHold A for1 secondPressany keyPressA or #PressA or #PressA or #Hold A or # for 1 secondyeK noitcnuFA,#ninwohssaedomreviecsnartehtegnahcotsserPehT(.wolebmargaideht #noelbaliavasiyek.)ylnosledomdapyekSehtneewtebelggototedoMkcatSnielihwsserPdnasserP.DIs’rellacehtdnaegassemdeviecerdeyalpsidehteteledotdnoces1nahteromrofdloh.egassemtttttB,Csssss atcelesotedomsutatSrollacleSnielihwsserP.sutatsreviecsnartruoyroDInoitatsTTP .llacaetaitiniotsserPFMTD()dapyeKsutatSrollacleSretneotdapyekFMTDehtesU.)ylnosledomdapyek(srebmun1Depending on how your dealer programmed the transceiver,Selcall Mode may be skipped or the transceiver may exit SelcallMode automatically (as shown by the dash arrow).
23■Selcall (Selective Calling)A Selcall is a voice call to a particular station or to agroup of stations.To Transmit:1Select your desired system and group (or groupand channel).2Press the A key to enter Selcall Mode.3Press the tB or Cs key to select the ID of thestation you want to call.•You can also enter digits by using the DTMF keypad ifManual Dial is enabled. (Press to erase anincorrect digit.)4Press the PTT switch and begin yourconversation.To Receive:An alert tone will sound, the transceiver willautomatically enter Selcall Mode, and the callingstation’s ID will appear when a Selcall is received.To respond to the call, press the PTT switch and
24To View the Caller IDs in the Stack Memory:The mail icon ( ) will flash when a Selcall call isreceived and stacked.1Press and hold the A key for more than 1 secondto enter Stack Mode.•The last received Caller ID is displayed with the CallerID number. “I” (ID) appears with the number.2Press the tB or Cs key to select the ID youwant to view (if more than one ID is stored in thestack memory).3To erase the ID, press and hold the S key formore than 1 second.Identification Codes:An ID code is a combination of a 3-digit Fleetnumber and a 4-digit ID number. Each transceivermust have its own Fleet and ID number.•Enter a Fleet number (100 ~ 349) to make a group call.•Enter an ID number (1000 ~ 4999) to make an individualcall in your fleet.•Enter a Fleet number followed by an ID number to makean individual call in your desired fleet (Inter-fleet call).•Select “ALL” Fleet and “ALL” ID to make a call to all units(Broadcast call).•Select “ALL” Fleet and enter an ID number to make a callto the selected ID in all fleets (Supervisor call).Note:◆Broadcast and Supervisor calls are programmed functionsthat cannot be made with a keypad.◆The ID range may be limited by programming.
25■Status MessageYou can send and receive 2-digit Status messages(10 ~ 79) which may be decided in your talk group.Messages can contain up to 16 alphanumericcharacters.A maximum of 9 received messages can be stored inthe stack memory of your transceiver. These savedmessages can be reviewed after reception. If thestack memory is full, the oldest message will beerased when a new message is received. The mailicon ( ) lights when a message is stored in thestack memory.Note: All stored messages will be cleared when the transceiverpower is turned OFF.To Transmit:1Select your desired system and group (or groupand channel).2Press the A key to enter Selcall Mode.3Press the tB or Cs key to select the ID of thestation you want to call.•You can also enter digits by using the DTMF keypad ifManual Dial is enabled. (Press to erase anincorrect digit.)4Press the A or # key to enter Status Mode.5Press the tB or Cs key to select the status youwant to transmit.•You can also enter digits by using the DTMF keypad ifManual Dial is enabled. (Press to erase anincorrect digit.)6Press the PTT switch to initiate the Status call.•“COMPLETE” is displayed when the call has beensuccessfully transmitted.
26To Receive:The mail icon ( ) will flash and a calling ID or textmessage will appear when a Status call is received.•The display alternates between the caller ID and themessage.Press any key to return to Normal Operation Mode.To Review the Messages in the Stack Memory:1Press and hold the A key for more than 1 secondto enter Stack Mode.•The last received message is displayed with themessage number. “S” (Status) appears with thenumber.2Press the tB or Cs key to select the messageyou want to view (if more than one message isstored in the stack memory).3Press the S key to toggle between the messageand the caller’s ID.4To erase the message, press and hold the S keyfor more than 1 second.Automatic Status Response:If you pre-select a status number and then leave thetransceier in Status Mode, the transceiver willautomatically respond with that status number whena request from the base station is received. (Thebase station request function is optional.)
27■Optional Short Messages FeatureReceived short messages (maximum of 48characters) are displayed the same as Statusmessages {page 24}, however only 4 shortmessages can be stored in the stack memory. “M”(Message) and the message number appear with themessage.
28DTMF (DUAL TONE MULTI FREQUENCY) CALLS■Making a DTMF Call (Keypad Models Only)There are two methods of making a DTMF call:•Manual dialing•Store and sendingTo make a call by dialing manually:1Press and hold the PTT switch.2Enter the desired digits using the front panelkeypad.•The corresponding DTMF tones sound each time youpress a key.•If you release the PTT switch, transmit mode will endeven if the complete number has not been sent.•If your dealer has activated the Keypad Auto PTTfunction, you need not hold down the PTT switchwhile pressing the keys on the keypad in Conventionalsystems. The DTMF code will be sent automaticallywhen you press a key.Note: Keypad Auto PTT does not function in Trunking systems.
29To make a call by storing and sending:1Enter the desired digits using the front panelkeypad.•The digits appear on the display as you enter them.2After entering the complete number, press thePTT switch.•If you are using the transceiver in a Conventionalsystem, the DTMF code is transmitted after pressingthe PTT switch.•If you are using the transceiver in a Trunking system,the DTMF code is transmitted after a connection isestablished. Releasing the PTT switch before aconnection is established will stop the transmissionfrom occuring.•If you are using the transceiver in a RIC (RepeaterInter-Connect) Trunking system, the DTMF code istransmitted after a connection with the telephonesystem is established. If you press the keyprogrammed as Auto Tel instead of the PTT switch,the call will automatically connect to the repeater, andthe DTMF code will be transmitted.Note:◆You can only store up to 16 digits before sending. Enteringmore than 16 digits will cause an error tone to sound.◆If you switch the power OFF before sending the number, thenumber will be cleared from memory.
30■DTMF SignallingYour dealer can program a group with a DTMFsignalling code. When you receive a call with a codethat matches yours, the signalling indicator will flashand a tone will sound. Squelch opens and you willhear the call.Squelch will close when you receive a call with acode that matches your signalling reset code.When making a call on a group programmed with aDTMF signalling code, the signalling indicator willlight and the squelch will open.■DBD (Dead Beat Disable)Depending on how your dealer programs yourtransceiver, when you receive a call containing aDBD code, either transmit mode or receive andtransmit modes will be disabled. When a DBD codeis received, a tone will sound.DBD is cancelled when you receive a call with a DBDcancel code.
31AUDIBLE USER FEEDBACK TONESThe transceiver emits various tones to indicate thetransceiver’s operating status. Contact your dealer forfurther information on these tones.enoT lanoitnevnoCtamroFgniknurTtamroFtrelAseYseYysuBseYseYnODBDseYseYffODBDseYseYyaleDoNseYyneDoNseY/edoMkcaBgniRmetsySeerFedoMhcraeSmetsyS oNseYllaCpuorGseYseYllaClaudividnIseYseYtpecretnIoNseYrorrEtupnIyeKseYseY]A[sserPyeKseYseY]B[sserPyeKseYseY]C[sserPyeKseYseYtnemeergAdrowssaPseYseYNOrewoPseYseYtrelAerPseYoNdeecorPoNseYesaeleRTTPseYseYeueuQoNseY
32enoT lanoitnevnoCtamroFgniknurTtamroFgnigniRoNseYrevOlloRseYseYhcraeSmetsySoNseYdnEhcraeSmetsySoNseYdnopsnarTseYseY
TK-481 Terminal DescriptionsUniversal connectorIt is possible to use a resin-based cover for the Universal connector.NO. Name Description Impedance I/O1 SSW Ext/Int Speaker Switch Input High Impedance I2 SP+ BTL Output + for External Speaker 8 ΩO3 SP- BTL Output - for External Speaker 16 ΩO4 MSW Ext/Int MIC Switch Input High Impedance I5 EMC External MIC Input 1.8 kΩI6 ME External MIC GND GND -7 PTT External PTT Input High Impedance I8 PF Programable Function Key Input High Impedance I9 NC Not used - -10 E GND GND -11 5M 5V power supply output 5V -12 TXD Serial Data Output CMOS O13 RXD Serial Data Input CMOS I14 NC Not used - -Antenna Terminal50 Ω impedanceBattery TerminalThe battery terminal uses a spring plate.The negative terminal connects to the chassis ground.The battery is mounted on the rear and upper side of the transceiver using a sliding mounting method.1+2- 12Back side viewAntena
Radio FRequency eneRgy SaFety inFoRmationThis Kenwood transceiver has been tested and complies with the standards listed below, in regards to Radio Frequency (RF) energy and electromagnetic energy (EME) generated by the transceiver.• FCC RF exposure limits for Occupational Use Only. RF Exposure limits adopted by the FCC are generally based on recommendations from the National Council on Radiation Protection and Measurements, & the American National Standards Institute.• FCC OET Bulletin 65 Edition 97-01 Supplement C• American National Standards Institute (C95.1 – 1992)• American National Standards Institute (C95.3 – 1992)This Kenwood transceiver generates RF EME while transmitting. RF EME (Radio Frequency Electric & Magnetic Energy) has the potential to cause slight thermal, or heating effects to any part of your body less than the recommended distance from this radio transmitter’s antenna. RF energy exposure is determined primarily by the distance to and the power of the transmitting device. In general, RF exposure is minimized when the lowest possible power is used or transmission time is kept to the minimum required for consistent communications, and the greatest distance possible from the antenna to the body is maintained. The transceiver has been designed for and is classied for Occupational Use Only. Occupational/ controlled exposure limits are applicable to situations in which persons are exposed to RF energy as a consequence of their employment, and such persons have been made aware of the potential for exposure and can exercise control over their exposure. This means you can use the transceiver only if you are aware of the potential hazards of operating a transceiver and are familiar in ways to minimize these hazards. This transceiver is not intended for use by the general public in uncontrolled environments. Uncontrolled environment exposure limits are applicable to situations in which the general public may be exposed to RF energy, or in which the persons who are exposed as a consequence of their employment may not be fully aware of the potential for exposure or cannot exercise control over their exposure.The following list provides you with the information required to ensure that you are aware of RF exposure and of how to operate this transceiver so that the FCC RF exposure limitations are not exceeded.• While transmitting (holding the PTT switch or speaking with VOX enabled), always keep the antenna and the radio at least 3 cm (1 3/16 inches) from your body or face, as well as from any bystanders. A LED on the top of the radio shows red when the transmitter is operating in both PTT and VOX modes.• Do not transmit for more than 50% of the total transceiver use time; transmitting over 50% of the total use time may exceed the limits in accordance to the FCC RF exposure requirements. Nominal transceiver operation is 5% transmission time, 5% reception time, and 90% stand-by time.• Use only the specied antenna for this transceiver; this may be either the antenna provided with the transceiver or another antenna authorized by Kenwood.Use only Kenwood authorized accessories (antennas, battery packs, belt clips, Speaker/ Mics or headsets etc.): When worn on the body, always place the radio in a Kenwood recommended clip or carrying case meant for this product. The use of other than recommended or approved body- worn accessories may result in RF exposure levels which exceed the FCC’s occupational/ controlled environment RF exposure limits.To ensure that your exposure to RF EME is within the FCC limits for occupational use, you must observe and adhere to the above points.Electromagnetic Interference CompatibilityElectronic devices are susceptible to electromagnetic interference (EMI) if they are not adequately shielded or designed for electromagnetic compatibility. Because this transceiver generates RF energy, it can cause interference to such equipment.• Turn OFF your transceiver where signs are posted to do so. Hospitals and health care facilities use equipment that is sensitive to electromagnetic radiation.• Turn OFF your transceiver while on board an aircraft when so instructed. Use of the transceiver must be in accordance with airline regulations and/or crew instructions. B59-2546-00

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