Kenwood USA 29473130 UHF-FM Hand Held Transceiver User Manual TK 270G 370G E 00 Covers

Kenwood USA Corporation UHF-FM Hand Held Transceiver TK 270G 370G E 00 Covers

Manual

INSTRUCTION MANUALTK-270G/ TK-370GTK-278G/ TK-378GMANUAL DE INSTRUCCIONESINSTRUCTION MANUALKENWOOD CORPORATION© B62-1113-00 (K,M,C)09 08 07 06 05 04 03 02 01 00VHF FM TRANSCEIVER/UHF FM TRANSCEIVERTRANSCEPTOR DE FM VHF/TRANSCEPTOR DE FM UHFVHF FM TRANSCEIVER/UHF FM TRANSCEIVERTK-270G/ TK-370GTK-278G/ TK-378GTK-270G/ TK-370GTK-278G/ TK-378G
TK-270G/ TK-370GTK-278G/ TK-378GVHF FM TRANSCEIVER/UHF FM TRANSCEIVERINSTRUCTION MANUALENGLISH
WARNING:EXPLOSIVE ATMOSPHERES (GASES, DUST, FUMES, etc.)Turn off your transceiver while taking on fuel, or while parked ingasoline service stations.◆GOVERNMENT LAW PROHIBITS THE OPERATION OFUNLICENSED RADIO TRANSMITTERS WITHIN THETERRITORIES UNDER GOVERNMENT CONTROL.◆ILLEGAL OPERATION IS PUNISHABLE BY FINE ORIMPRISONMENT OR BOTH.◆REFER SERVICE TO QUALIFIED TECHNICIANS ONLY.SAFETY: It is important that the operator is aware ofand understands hazards common to the operation ofany transceiver.THANK 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-270G: VHF FM Transceiver• TK-278G: VHF FM Transceiver• TK-370G: UHF FM Transceiver• TK-378G: UHF FM TransceiverNOTICES TO THE USER
iOne or more of the following statements may beapplicable: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 equipment ifan unauthorized change or modification is made.INFORMATION TO THE DIGITAL DEVICE USER REQUIRED BYTHE 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 the instructions,may cause harmful interference to radio communications. However,there is no guarantee that the interference will not occur in a particularinstallation. If this equipment does cause harmful interference to radioor television reception, which can be determined by turning theequipment off and on, the user is encouraged to try to correct theinterference 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 KENWOODnickel-cadmium (Ni-Cd) battery packs indicatesKENWOOD’s voluntary participation in an industryprogram to collect and recycle Ni-Cd batteries aftertheir operating life has expired. The RBRC programis an alternative to disposing Ni-Cd batteries withyour regular refuse or in municipal 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 commitmentto preserve our environment and conserve our natural resources.
iiPRECAUTIONSObserve the following precautions to prevent fire,personal injury, and transceiver damage.• Do not modify this transceiver for any reason.• Do not expose the transceiver to long periods ofdirect sunlight, nor place it close to heatingappliances.• Do not place the transceiver in excessively dusty,humid, and/or wet areas, nor on unstable surfaces.• If an abnormal odor or smoke is detected comingfrom the transceiver, switch OFF the powerimmediately and remove the optional battery packfrom the transceiver. Contact your KENWOODdealer.
iiiCONTENTSUNPACKING AND CHECKING EQUIPMENT................... 1Supplied Accessories ...................................... 1PREPARATION .................................................. 3Charging the Optional NiCd Battery Pack .................. 3Installing/ Removing the Optional NiCd Battery Pack ..... 4Installing the Antenna ..................................... 5Installing the Belt Clip ..................................... 5Installing the Hand Strap .................................. 5Installing the Cap over the Speaker/ Microphone Jacks ... 6Installing the Optional Speaker/ Microphone ........... 6GETTING ACQUAINTED ........................................ 7Display ...................................................... 9PROGRAMMABLE AUXILIARY FUNCTIONS ................ 10OPERATING BASICS ...........................................11Switching Power ON/OFF ................................11Adjusting the Volume ..................................... 11Selecting a Group or Channel ...........................11Adjusting the Squelch Level .............................12Placing a Call ..............................................13Receiving a Call ...........................................13CHANNEL SCAN ...............................................14Priority Scan ...............................................15Channel Lockout ..........................................15Revert Channel ............................................15DTMF CALLS ...................................................16Manual Dialling ............................................ 16
ivStoring DTMF Numbers .................................... 17Confirming Stored DTMF Numbers .....................17Dialling Stored DTMF Numbers .........................18Clearing Stored DTMF Numbers .......................... 18Redialling .................................................. 18CODE SQUELCH ...............................................19Receiving ..................................................19Transmitting ...............................................20SELECTIVE CALL ..............................................21Receiving ..................................................22Transmitting ...............................................232-TONE SIGNALLING ..........................................24Receiving ..................................................24Transmitting ...............................................25AUXILIARY FUNCTIONS ......................................26Selecting an Output Power ...............................26Time-out Timer (TOT) ....................................26Busy Channel Lockout (BCL) .............................27Talk-Around ................................................27Reverse ....................................................28Battery Voltage Level .....................................28Lamp .......................................................28Monitor .....................................................29Beginning/ End of Transmission Signal ................29
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 aremissing or have been damaged during shipment, file aclaim with the carrier immediately.■Supplied AccessoriesBelt clipSpeaker/ microphonejacks capScrew set Speaker/ microphonelocking bracketAntenna(TK-270G/ TK-278G)(M and C markets only)Hand strap bracket(C market only) Hand strap(C market only)Antenna(TK-370G/ TK-378G)(M and C markets only)
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3PREPARATION■Charging the Optional NiCd Battery PackThe optional battery pack is not charged at thefactory; charge it before use (refer to the batterypack instruction manual).◆DO NOT RECHARGE THE BATTERY PACK IF IT ISALREADY FULLY CHARGED. DOING SO MAY CAUSE THELIFE OF THE BATTERY PACK TO SHORTEN OR THEBATTERY PACK MAY BE DAMAGED.◆AFTER RECHARGING THE BATTERY PACK, DISCONNECTIT FROM THE CHARGER. IF THE CHARGER POWER ISRESET (TURNED ON AFTER BEING TURNED OFF),RECHARGING WILL START AGAIN AND THE BATTERYPACK WILL BECOME OVERCHARGED.Initially charging the battery pack after purchase orextended storage (greater than 2 months) will notbring the battery pack to its normal operatingcapacity. After repeating the charge/discharge cycletwo or three times, the operating capacity willincrease to normal.
41Match 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.◆DO NOT SHORT THE BATTERY TERMINALS OR DISPOSEOF THE BATTERY BY FIRE.◆NEVER ATTEMPT TO REMOVE THE CASING FROM THEBATTERY PACK.■Installing/ Removing the Optional NiCd Battery PackOnly use the KNB-14 and KNB-15A battery packswith this transceiver.
5Screw the antenna into theconnector on the top of thetransceiver by holding theantenna at its base andturning it clockwise untilsecure.Note: An antenna is not providedfor K market models. It must bepurchased separately.■Installing the Antenna■Installing the Belt ClipIf necessary, attach the beltclip using the two supplied3 x 8 mm screws.Note: If the belt clip is not installed,its mounting location may get hotduring continuous transmission orwhen left sitting in a hotenvironment.■Installing the Hand Strap1Attach the hand strapbracket using the twosupplied 3 x 8 mmscrews.2Loop the hand strapthrough the center holeof the hand strapbracket.Note: If desired, you can install thehand strap bracket over the belt clip.
6If you are not using anoptional speaker/microphone, install thecover over the SP/MICjacks using the supplied3 x 6 mm screw.■Installing the Cap over the Speaker/ Microphone Jacks■Installing the Optional Speaker/ Microphone1Insert the speaker/microphone plugs intothe SP/MIC jacks.2Install the speaker/microphone lockingbracket over the plugsusing the supplied3 x 6 mm screw.
7GETTING ACQUAINTEDA321B654C987D0DIALTASCNLOqqqqqeeeeerrrrrtttttyyyyyuuuuuiiiiiooooo!0!0!0!0!0wwwwwAntennaMicrophone SpeakerThe transceiver is shown with the optional KNB-14 battery pack.qqqqqRotary encoderYour dealer can program the encoder as eitherGroup Up/Down or Channel Up/Down (defaultsetting). Rotate to select a group or channel. Alsorotate to adjust the squelch in Squelch Adjustmentmode.wwwwwLED indicatorLights red while transmitting. Lights green whilereceiving. Flashes orange while receiving a CodeSquelch code or a Selective Call code, or a 2-Toneor DTMF signal that matches the one set up in yourtransceiver. Flashes red when the battery power islow while transmitting.
8eeeeePower switch/ Volume controlTurn clockwise to switch ON the transceiver. Rotateto adjust the volume. To switch OFF the transceiver,turn counterclockwise fully.rrrrrPTT (Push-to-Talk) switchPress this switch, then speak into the microphone tocall a station.tttttSide 1 keyThis is a PF (Programmable Function) key. Press itto activate its auxiliary function {page 10}.yyyyySide 2 keyThis is a PF (Programmable Function) key. Press itto activate its auxiliary function {page 10}.uuuuuo, •, <, > keysThese are PF (Programmable Function) keys. Presseach key to activate its auxiliary function {page 10}.iiiiiDTMF keypadUsed for storing and transmitting DTMF numbers.oooooSP/MIC jacksConnect an optional speaker/ microphone here.!0!0!0!0!0 Display(See page 9.)Note: The PF keys are programmed with default functions:•Side 1 key: Lamp•Side 2 key: Monitor A•o key: Scan•• key: Scan Del/Add•< key: Talk Around (K and M markets)Reverse (C market)•> key: RF Power Lo
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10PROGRAMMABLE AUXILIARY FUNCTIONSSide 1, Side 2, o, •, <, and > can be programmed withthe auxiliary functions listed below.• Channel Down• Channel Up• Display Character• Group Down• Group Up• Home Channel• Key Lock• Lamp• Monitor A (Monitor Unmute–Momentary)• Monitor B (Monitor Unmute–Toggle)• Monitor C (Carrier Squelch–Momentary)• Monitor D (Carrier Squelch–Toggle)• None• Operator Sel Tone 1• Redial• Reverse 2• RF Power Lo• Scan• Scan Del/Add• Scrambler• Selectable QT 3• Talk-Around 1• TX Code Select1Available for K and M market models only.2Available for C market models only.3Available for C and M market models only.
11OPERATING BASICS■Switching Power ON/OFFTurn the Power switch/ Volume control clockwise toswitch the transceiver ON.Turn the Power switch/ Volume control counter-clockwise to switch the transceiver OFF.■Adjusting the VolumeRotate the Power switch/ Volume control to adjustthe volume. Clockwise increases the volume andcounterclockwise decreases it.• You may need to adjust the volume more preciselywhile communicating with other parties.Note: Depending on dealer programming, you may be able to usethe Monitor key while adjusting the volume (refer to “Monitor” onpage 29).■Selecting a Group or ChannelRotate the Rotary encoder (or press the keysprogrammed as Group Up/Down or Channel Up/Down) to choose your desired group or channel.Clockwise increases the number and counter-clockwise decreases it.• If a group or channel has not been programmed, itcannot be used.
12■Adjusting the Squelch LevelSquelch is used to silence the speaker when nosignals are present. When squelch is turned OFF,you will hear background noise from the speaker.When it is ON, you will not hear background noise.The squelch level you select determines whensquelch will turn OFF and ON. If you select asquelch level that is too high, you will not hearweaker signals. If you select a squelch level that istoo low, you will hear background noise betweensignals.To adjust the squelch:1Press and hold the Side 2 key, then press the >key.• “SQL” and the current squelch level appear.2Rotate the Rotary encoder to select a squelchlevel from 0 ~ 9.• Clockwise increases the squelch level andcounterclockwise decreases it.3Press any key other than the key programmed asLamp to complete the setting.• Normal operation is restored.
13■Placing a Call1Make sure no parties are currently transmitting onyour selected channel.2Press the PTT switch and speak into themicrophone in your normal speaking voice.•For best sound quality at the receiving station, holdthe microphone approximately 1.5 inches(3 ~ 4 cm) from your mouth.3Release the PTT switch to receive.■Receiving a CallYour dealer may have programmed QT or DQTsignalling on your transceiver. If your selectedchannel is programmed with one of these features,you will hear calls only when another party in yoursystem makes a call. All other calls will not beheard.If your selected channel is not set up with QT orDQT, you will hear calls made by any party (not justthose in your system).
14CHANNEL SCANScan is useful for monitoring signals on the channelsprogrammed on the transceiver. When scanning, thetransceiver checks for a signal on each channel, andonly stops on a channel if a signal is present.The transceiver will remain on a busy channel until thesignal is no longer present. Your dealer programs thedelay time between signal drop-out and scanresumption. If a signal is received during the delaytime, the transceiver will remain on the same channel.Note:◆You can only use Scan if your dealer has programmed at least 2channels on the transceiver. Also, there must be at least 2 channelsnot locked out of Scan.◆Ask your dealer for an explanation on how Channel Scan functionswhen using Code Squelch, Selective Call, or 2-Tone signalling.To start scanning, press the key programmed as Scan.• Scanning starts from the current channel and ascendsthrough the channel numbers.• The SCN icon and “SCAN” appear on the display.To end Scan, press the Scan key again.
15■Priority ScanIf your dealer set up a priority channel on yourtransceiver, the transceiver will continuously monitorthat channel while receiving a signal on anotherchannel. When a signal is received on the Prioritychannel, the transceiver immediately switches to thatchannel.• “P” appears on the display.The transceiver will remain on the Priority channeluntil the signal drops out. Your dealer programs thedelay time between signal drop-out and scanresumption.■Channel LockoutIf programmed by your dealer, you can selectchannels to lock out of the scanning sequence.Perform the following steps while not in Scan mode.1Rotate the Rotary encoder to select the channelyou want to lock out of Scan.2Press the key programmed as Scan Del/Add.• Each press of Scan Del/Add toggles the lockoutstatus of the selected channel ON and OFF.• Channels that are included in Scan are representedby an “A” on the display. Channels locked out ofScan do not have an “A” on the display.■Revert ChannelDuring Scan, pressing the PTT switch to transmit willcause the transceiver to select the revert channel.Your dealer programs the Revert channel for yourtransceiver. Consult your dealer for details.
16DTMF CALLS■Manual DiallingThere are two ways to manually call a number:1) Press and hold the PTT switch, then enter thedesired digits on the keypad.• You can enter the digits 0 ~ 9, A ~ D,, and #.(A ~ D may be disabled by your dealer.)• If programmed by your dealer, you do not need tocontinuously hold the PTT switch. The transceiverwill remain in the transmit state for 2 seconds afterreleasing each key.• While transmitting DTMF tones, the microphone ismuted. You can monitor tones as they aretransmitted by listening to the speaker audio.2) First enter the desired digits on the keypad (16digits maximum).• Each digit appears on the display as it is enteredand its corresponding DTMF tone sounds.• You can enter the digits 0 ~ 9, A ~ D,, and #.(A ~ D may be disabled by your dealer, howeveryou can still enter them if desired.)• If you entered a wrong digit or decide not to dial thenumber, press the o, •, <, or > key to exit.After entering the desired digits, press the PTTswitch to make the call.• The digits scroll across the display and theircorresponding DTMF tone sounds.• If programmed by your dealer, no DTMF tone willsound when “D” is transmitted. “D” is used for apause time. The pause duration is programmed byyour dealer.
17■Storing DTMF NumbersNote: Auto Dialling must first be activated by your dealer.You can store DTMF numbers (16 digits maximum)in each of the 9 Auto Dial memory locations (1 ~ 9).1Press the # key.• “D” appears on the display.2Enter the desired digits on the keypad.• You can enter the digits 0 ~ 9, A ~ D,, and #.(A ~ D may be disabled by your dealer, howeveryou can still enter them if desired.) When entering“#”, you must first press the PTT switch.• To cancel, press o, •, <, or >.3Press the # key, then enter a single digit number(1 ~ 9) for the memory location.• The original display is restored.■Confirming Stored DTMF NumbersTo confirm the numbers stored in memory locations:1Press the key.• “A” appears on the display.2Enter the desired memory location number (1 ~ 9).• The stored digits are displayed and theircorresponding DTMF tones sound.• If programmed by your dealer, no DTMF tone willsound when “D” is transmitted. “D” is used for apause time. The pause duration is programmed byyour dealer.3Press any key other than the PTT switch to exit.
18■Dialling Stored DTMF NumbersTo call a number stored in a memory location:1Press the key.• “A” appears on the display.2Enter the desired memory location number (1 ~ 9).• The stored digits are displayed.3Press the PTT switch.• If programmed by your dealer, no DTMF tone willsound when “D” is transmitted. “D” is used for apause time. The pause duration is programmed byyour dealer.■Clearing Stored DTMF NumbersTo clear the numbers from a memory location:1Press the # key twice.• “D- CLR” appears on the display.• To cancel the process, press any key other than1 ~ 9.2Enter the desired memory location number (1 ~ 9).■RediallingYou can redial the last number you transmitted (16digits maximum).1Press the key, then press the 0 key.• “A” and the digits are displayed.2Press the PTT switch.Note: Switching OFF the transceiver power clears the redialmemory.
19CODE SQUELCHCode Squelch is enabled or disabled by your dealer.This function turns the transceiver squelch OFF onlywhen it receives the DTMF code that has been set up inyour transceiver. Transceivers that do not transmit thecorrect code will not be heard. Consequently, you cancommunicate with a specific party without listening toother parties using the same channel.Your dealer may also activate Group Call for yourtransceiver. This is useful when you want to passinformation to a number of units in a fleet. Ask yourdealer for details.Note: Code Squelch cannot be used on channels programmed withSelective Call or 2-Tone Signalling.■ReceivingWhen you receive a signal containing the correctcode, squelch turns OFF and you will hear the call.• “CALL” appears on the display and the LED indicatorflashes orange.• To mute the speaker after squelch turns OFF, press thekey programmed as Monitor.• Your dealer can program squelch to automatically turnback ON after a specific time period elapses.• If Transpond for Code Squelch is programmed, anacknowledgment signal is returned to the callingstation. Transpond does not function when you arecalled with a Group code. Transpond for Selective Callcan send an alert tone, a transceiver ID code, or acode stored in memory location 1.• If Tone Alert for Code Squelch is programmed, an alerttone will sound when the correct code is received.
20■Transmitting1Press and hold the PTT switch.2Enter the code of the transceiver you want to callor enter a Group code on the keypad.• If desired, you can send codes the same way youmake DTMF calls {page 16}. Both manual methodscan be used or you can store codes in memory,then dial them from a memory location.• “CALL” appears on the display and the LEDindicator lights red.3Use the transceiver the same as in a regular call;press the PTT switch to transmit and release it toreceive.• The called transceiver’s squelch will turn OFF whileyou are transmitting. After you stop transmitting,the squelch will turn back ON after a pre-set timeperiod elapses. This time period is programmed byyour dealer.• When you release the PTT switch, squelch turnsOFF and the LED indicator flashes orange. Whenyou receive a signal, the LED indicator lights green.When the signal drops out, the LED indicatorflashes orange again. If no signal is received for apre-determined time, squelch turns back ON.• Pressing the key programmed as Monitor at anytime will turn the squelch back ON.
21SELECTIVE CALLSelective Call is enabled or disabled by your dealer.This function is similar to Code Squelch {page 19}. Thedifferences from Code Squelch are:• You can send or receive message codes containing amaximum of 5 digits.• Selective Call turns the squelch OFF only when thetransceiver receives a predetermined DTMF code in thecorrect sequence:1) A 3-digit ID code2) A 1-digit Intermediate code3) A message code (up to 5 digits)Your dealer may also activate Group Call for yourtransceiver. This is useful when you want to passinformation to a number of units in a fleet. Ask yourdealer for details.Note: Selective Call cannot be used on channels programmed withCode Squelch or 2-Tone Signalling.
22■ReceivingWhen you receive the correct ID and Intermediatecodes, squelch turns OFF and you will hear the call.If a message code is also received, the messageappears on the display• “CALL” appears on the display and the LED indicatorflashes orange.• When you receive a call with your ID code, “C”appears on the display (i.e.- C 12345).• When you receive a call wih your Group code, “A”appears on the display (i.e.- A 12345).• When no message is received, “NO DATA” appears onthe display.• You can clear a message by pressing any key otherthan the key programmed as Lamp.• To mute the speaker after squelch turns OFF, pressthe key programmed as Monitor.• Your dealer can program squelch to automatically turnback ON after a specific time period elapses.• If Transpond for Selective Call is programmed, anacknowledgment signal is returned to the callingstation. Transpond does not function when you arecalled with a Group code. Transpond for SelectiveCall can send an alert tone, a transceiver ID code, or acode stored in memory location 1.• If Tone Alert for Selective Call is programmed, an alerttone will sound when the correct code is received.
23■Transmitting1Press and hold the PTT switch.2Enter the code of the transceiver you want to callor enter a Group code on the keypad.• Be sure to enter the ID or Group code, followed bythe Intermediate code of the transceiver you wantto call. If desired, you can also enter a messagecode of up to 5 digits.• If desired, you can send codes the same way youmake DTMF calls {page 16}. Both manualmethods can be used or you can store codes inmemory, then dial them from a memory location.• “CALL” appears on the display and the LEDindicator lights red.3Use the transceiver the same as in a regular call;press the PTT switch to transmit and release it toreceive.• When you release the PTT switch, squelch turnsOFF and the LED indicator flashes orange. Whenyou receive a signal, the LED indicator lights green.When the signal drops out, the LED indicatorflashes orange again. If no signal is received for apre-determined time, squelch turns back ON.• Pressing the key programmed as Monitor at anytime will turn the squelch back ON.
242-TONE SIGNALLING2-Tone Signalling is enabled or disabled by your dealer.This function turns the transceiver squelch OFF onlywhen it receives the 2-tone signal that has been set upin your transceiver. Transceivers that do not transmitthe correct tones will not be heard.Your dealer may also activate Group Call for yourtransceiver. Ask your dealer for details.■ReceivingWhen you receive a signal containing the correcttones, squelch turns OFF and you will hear the call.• “CALL” appears on the display and the LED indicatorflashes orange.• To mute the speaker after squelch turns OFF, press thekey programmed as Monitor.• Your dealer can program squelch to automatically turnback ON after a specific time period elapses.• If Transpond for 2-Tone Signalling is programmed, anacknowledgment signal is returned to the callingstation. Transpond for 2-Tone Signalling can transmitan alert tone only.• If Tone Alert for Code Squelch is programmed, an alerttone will sound when the correct tones are received.
25■Transmitting1Press the key programmed as TX Code Select.• A 2-Tone code appears on the display.2Rotate the Rotary encoder to select your desired2-Tone code.3Use the transceiver the same as in a regular call;press the PTT switch to transmit and release it toreceive.• When you release the PTT switch, squelch turnsOFF and the LED indicator flashes orange. Whenyou receive a signal, the LED indicator lights green.When the signal drops out, the LED indicatorflashes orange again. If no signal is received for apre-determined time, squelch turns back ON.• Pressing the key programmed as Monitor at anytime will turn the squelch back ON.
26AUXILIARY FUNCTIONS■Selecting an Output PowerEach channel is programmed with either high or lowoutput power by your dealer. You can change theoutput power of only channels programmed as high.When you can reliably communicate with otherparties without using high power, select low power bypressing the key programmed as RF Power Lo.Each time you press RF Power Lo, the output powertoggles between high and low.• Using low power conserves battery power and reducesthe risk of interfering with other communications.• The “LO” icon appears when you are using low power.Note:◆Pressing RF Power Lo while using a channel programmed withlow power causes an error tone to sound.◆When changing a channel from high power to low power, allchannels programmed with high power are changed to low.■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 a warning function to alertyou before the TOT expires. Continuouslytransmitting for the time specified by your dealer willcause the warning tone to sound.
27■Busy Channel Lockout (BCL)The Busy Channel Lockout feature is activated ordeactivated by your dealer.When activated, BCL prevents you from interferingwith other parties who may be using the samechannel that you selected. Pressing the PTT switchwhile the channel is in use will cause yourtransceiver to emit an alert tone and transmission willbe inhibited (you cannot transmit). Release the PTTswitch to stop the tone and return to receive mode.■Talk-AroundYou may occasionally experience an interruption inservice (due to a power failure, etc.). During such anoccurence, you can continue communication byusing the Talk-Around feature, if it has beenprogrammed by your dealer. Talk-Around allows youto communicate directly with other transceivers,without the use of a repeater. However, if the stationyou want to contact is too far away, or there aregeographical obstacles in the way, you may not beable to contact the station.Toggle Talk-Around ON and OFF by pressing the keyprogrammed as Talk-Around.• “T” or “TA” appears on the display while Talk-Around isactive.• When using Talk-Around, the “receive” frequency isused for both transmission and reception, and the QT/DQT “decode” signalling is used for both encoding anddecoding.
28■ReverseYour dealer may have programmed the Reversefunction instead of the Talk-Around function.When using Reverse, the transmit and receivefrequencies are swapped. This means that you willtransmit on the “receive” frequency and receive onthe “transmit” frequency. The QT/DQT encoding anddecoding signals are also reversed, meaning thattransmitted signals are encoded using the “decode”signal, and received signals are decoded using the“encode” signal.Toggle Reverse ON and OFF by pressing the keyprogrammed as Reverse.• “R” or “RE” appears on the display while Reverse isactive.■Battery Voltage LevelWhile transmitting, the transceiver automaticallychecks the battery voltage level. When the voltagelevel becomes low, the LED indicator flashes red.When a tone sounds, transmission stops. Rechargeor replace the battery pack at this time.■LampPress the key programmed as Lamp to toggle thedisplay backlight ON or OFF. The backlightautomatically turns OFF approximately 5 secondsafter it is switched ON.Press any key other than Lamp while the backlight isON to reset the 5 second timer. The timer will resetand the backlight will remain on for 5 seconds.
29■MonitorYour dealer can program a key with the Monitorfunction one of four ways:APress and hold the Monitor key to hear backgroundnoise. Release the key to return to normal operation.BMomentarily press the Monitor key to hearbackground noise. Press the key again to return tonormal operation.CPress and hold the Monitor key to deactivate QT,DQT, or 2-Tone signalling. Release the key to return tonormal operation.DMomentarily press the Monitor key to deactivate QT,DQT, or 2-Tone signalling. Press the key again toreturn to normal operation.You can use the Monitor key to listen to weaksignals that you cannot hear during normal operationand to adjust the volume when no signals arepresent on your selected channel.■Beginning/ End of Transmission SignalYour dealer can enable or disable the Beginning/End of Transmission identification signals. Thesesignals are used to access and release somerepeaters and telephone systems.To send a Beginning of Transmission signal, eitherpress the PTT switch, or press the key two times.To send an End of Transmission signal, eitherrelease the PTT switch or press the key followedby the # key.• Ask your dealer which method has been activated onyour transceiver.

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