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Kenwood TH78E, TH-78A Tone Operation, Selecting Tone Frequencies, Tone Function Operating

Models: TH78E TH-78A

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6 Tone Operation

Some repeaters require a control signal to activate them. Several different methods are currently in use.

In the United States, sub-audible tones are sometimes used. This transceiver will generate sub- audible frequencies.

In Europe and the United Kingdom, a 1750 Hz tone is used in transmitting. Simply press and hold the TONE key to transmit the access code. You need not press the PTT switch. A 1750 Hz tone encoder is included with models delivered to Europe and the United Kingdom.

Selecting Tone Frequencies

If the optional CTCSS unit (TSU-7) is not installed, you cannot change the tone frequency.

Press the F key for longer than one second, then press the TONE key. The current tone frequency will appear on the display.

2 Rotate the tuning control to select the desired tone frequency(Hz)

3Press any key or simply wait 10 seconds for the transceiver to resume the previous mode.

Tone Function Operating

Press the TONE key. A “ T ” indicator appears on the display, and the transmitter sends the desired tone when you press the PTT switch.

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Kenwood TH78E, TH-78A instruction manual Tone Operation, Selecting Tone Frequencies, Tone Function Operating

Contents

TH-78A Contents Dual Tone Squelch System Dtss Accessories Before OperationControls Overview Key Page Page Tuning Control and Volume Control Receiver OperationGetting Started Separate volume control function Separate tuning control functionReturning to the original mode Selecting a Frequency Direct Keyboard Frequency Entry12.5 62.5 37.5 87.5 Using the Tuning Control Step Size SelectionChanges in the Displayed Frequency Programmable VFO Tuning Limits VFO tuning range 144.000 145.000 146.000 147.000 Basic Receiving FunctionsChanging Transmitter Output Power Transmitter OperationTo transmit, follow these steps Time-Out-Timer Output PowerwattsTX. Stop Function Initializing The Memory Using the MemoryMicroprocessor Memory Backup Memory ChannelEntering Normal Simplex/Repeater Channels Memory ContentsEntering Memory Data Clearing a Memory ChannelEntering Split Channel Frequencies Entering The Call Channel FrequencyUsing the numeric keypad Recalling Memory ChannelsMemory Shift Memory Channel Character Display Function SettingMessage Display Cancel Character registrationHold/Resume Programming Scan operation cancelScanning Hold/Resume SelectionScan Options Scanning Memory ChannelsBand scan Programmable Band ScanMHz Scan Confirming Scan LimitInitiating Programmable Band Scan VFO/Memory Scan11 V/M/CVFO/Memory/CALL Scan CALL/VFO ScanCall / Memory Scan Alert FunctionAutomatic Offset Selection Repeater OperationTransmitter Offsets Selecting the Offset DirectionManual Offset Selection Reverse FunctionTone Operation Selecting Tone FrequenciesTone Function Operating Selecting Delay Time Autopatch OperationsTo activate the keypad Recalling Stored Dtmf Codes in Receive Mode Dtmf MemoryStoring Dtmf Codes Operation AS a Repeater Making a Dtmf CallCtcss Operation Operating the Ctcss FunctionDtss Code Using the Dtss FunctionDual Tone Squelch System Dtss Selecting Dtss CodesPaging Operation Overview Setting Paging Codes Paging Code MemorySending Pages Calling Group Communication Network ExampleCalling All Group Members Code setting mode Paging mode Calling a Specific Group MemberReceiving Pages Wait Receiving a Page with an Individual CodeReceiving a Page with a Group code Locking Out Codes Canceling Signal SquelchCanceling signal type squelch Answer-BackMessage Transmission and Reception Using the Message MemoryMemory write procedure Message Transmission ModesLnpu t Key Message Memory Transmission Dtss modeMessage Memory Check Message ReceptionPaging mode Receive Message MemoryReceive message memory clear Enhanced Receiver Functions Tone Alert SystemSelecting a Beep Sound Lamp MonitorBeepOff Key LockVolume adjustment when you use an earphone CAUT/ONTo simultaneously receive two VHF band signals To simultaneously receive two UHF band signalsAutomatic Band Change Function MHz Mode Single Band OperationChannelized Frequency Display Automatic Power Off APO Power Saver FeaturesBattery Saver Mode Battery Save Time SelectionTime Alarm Setting Time SettingTimer Function Switch-on Timer SettingSwitch-off Timer Setting Timer Start/StopAlarm Function Duplex Operation Changing Power-on Message Power on Message and Function MessagePower On Message Function Message250MS 450MSGeneral Information MaintenanceService Record KeepingTroubleshooting Optional unit Battery charger SMC-31 SMC-34 TSU-7 ME-1DVB lNVlSIS3tl LNflOk-4 13AIMS Installing the Ctcss Unit TSU-7 Memory Expansion Unit ME-l Programming the SMC-33 Remote Control Speaker Microphone Memory Control Functions Press the key below Press the F key, then Key belowUsing Other Microphone Specifications GeneralQuick Reference To do this PressThen f2 To do this