Kenwood TH-78A, TH78E instruction manual Operation AS a Repeater, Making a Dtmf Call

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Making a DTMF Call

1Hold the PTT switch down and press the MHz key.

2Press the numeric key (O-9) for the channel where the DTMF code is stored.

3The DTMF code appears on the display.

Note

Transmission continues until the whole code string is recalled, even if the PTT switch is released.

You cannot stop DTMF code transmission once it is initiated.

OPERATION AS A REPEATER

(U.S.A., CANADA versions only)

This transceiver is capable of operating as a repeater. The transceiver listens on both bands simultaneously. As soon as a signal is received on one band, the other shifts from receive to transmit and re-transmits the incoming signal.

Function setting

1Select the operating frequencies and adjust the squelch controls to threshold.

2Press the F key for longer than one second and then press the 0 key. The MHz dot(.) will flash.

To return to the normal function, perform step 2 again.

Notes

1 The Time-out Timer function will automaticaly set to 3 minutes mode.

2 Combinations of SHIFT and CTCSS can be used in the Repeater mode. DTSS and PAGING will not work in this mode.

CAUTION

This equipment can be extremely susceptible to lightening strike damage or intermodulation distortion if it is operated on mountain top locations.

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Contents TH-78A Contents Dual Tone Squelch System Dtss Before Operation AccessoriesControls Overview Key Page Page Tuning Control and Volume Control Receiver OperationGetting Started Separate volume control function Separate tuning control functionReturning to the original mode Direct Keyboard Frequency Entry Selecting a Frequency12.5 62.5 37.5 87.5 Using the Tuning Control Step Size SelectionChanges in the Displayed Frequency Programmable VFO Tuning Limits Basic Receiving Functions VFO tuning range 144.000 145.000 146.000 147.000Changing Transmitter Output Power Transmitter OperationTo transmit, follow these steps Time-Out-Timer Output PowerwattsTX. Stop Function Microprocessor Memory Backup Using the MemoryInitializing The Memory Memory ChannelEntering Memory Data Memory ContentsEntering Normal Simplex/Repeater Channels Clearing a Memory ChannelEntering The Call Channel Frequency Entering Split Channel FrequenciesUsing the numeric keypad Recalling Memory ChannelsMemory Shift Message Display Cancel Function SettingMemory Channel Character Display Character registrationScanning Scan operation cancelHold/Resume Programming Hold/Resume SelectionScanning Memory Channels Scan OptionsProgrammable Band Scan Band scanInitiating Programmable Band Scan Confirming Scan LimitMHz Scan VFO/Memory ScanCall / Memory Scan CALL/VFO Scan11 V/M/CVFO/Memory/CALL Scan Alert FunctionTransmitter Offsets Repeater OperationAutomatic Offset Selection Selecting the Offset DirectionReverse Function Manual Offset SelectionTone 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 Making a Dtmf Call Operation AS a RepeaterOperating the Ctcss Function Ctcss OperationDual Tone Squelch System Dtss Using the Dtss FunctionDtss Code Selecting Dtss CodesPaging Operation Overview Paging Code Memory Setting Paging CodesSending Pages Calling Group Communication Network ExampleCalling All Group Members Calling a Specific Group Member Code setting mode Paging modeReceiving Pages Wait Receiving a Page with an Individual CodeReceiving a Page with a Group code Canceling signal type squelch Canceling Signal SquelchLocking Out Codes Answer-BackMemory write procedure Using the Message MemoryMessage Transmission and Reception Message Transmission ModesLnpu t Key Message Memory Check Dtss modeMessage Memory Transmission Message ReceptionPaging mode Receive Message MemoryReceive message memory clear Enhanced Receiver Functions Tone Alert SystemSelecting a Beep Sound BeepOff MonitorLamp Key LockCAUT/ON Volume adjustment when you use an earphoneTo simultaneously receive two VHF band signals To simultaneously receive two UHF band signalsAutomatic Band Change Function MHz Mode Single Band OperationChannelized Frequency Display Battery Saver Mode Power Saver FeaturesAutomatic Power Off APO Battery Save Time SelectionTimer Function Time SettingTime Alarm Setting Switch-on Timer SettingSwitch-off Timer Setting Timer Start/StopAlarm Function Duplex Operation Power On Message Power on Message and Function MessageChanging Power-on Message Function Message450MS 250MSService MaintenanceGeneral Information Record KeepingTroubleshooting ME-1 Optional unit Battery charger SMC-31 SMC-34 TSU-7DVB lNVlSIS3tl LNflOk-4 13AIMS Installing the Ctcss Unit TSU-7 Memory Expansion Unit ME-l Programming the SMC-33 Remote Control Speaker Microphone Press the key below Press the F key, then Key below Memory Control FunctionsUsing Other Microphone General SpecificationsTo do this Press Quick ReferenceThen f2 To do this

TH78E, TH-78A specifications

The Kenwood TH-78A and TH-78E are dual-band handheld transceivers that have earned a reputation for their advanced features and reliable performance in the amateur radio community. These transceivers are designed to operate on both the VHF and UHF bands, making them versatile tools for communication across different frequencies.

One of the standout features of the TH-78A and TH-78E is their dual receive capability, which allows operators to monitor two frequencies simultaneously. This is particularly useful for those who need to keep track of multiple communication channels, providing flexibility during operations. The transceivers also support a wide frequency range, ensuring compatibility with a diverse array of communication channels.

Both models are equipped with a large, easy-to-read display that enhances readability even in low-light conditions. The display provides essential information, such as frequency, channel, and battery status, ensuring operators can quickly access important data while on the move. An adjustable backlight further aids visibility in dark environments, making these radios a reliable choice for night operations.

The Kenwood TH-78A and TH-78E are known for their robust audio performance. They utilize advanced audio processing technology that enhances sound clarity, allowing for clear communication even in noisy environments. Additionally, the transceivers support a variety of digital modes, including CTCSS and DCS, which enable users to communicate securely by encoding their transmissions.

With a built-in 1000 memory channels, users can store and easily access their favorite frequencies. This extensive memory capability simplifies the task of switching between channels, making it easier for amateur radio enthusiasts to program and manage their communications. Furthermore, the radios feature programmable function keys that allow users to customize frequently used settings for quick access.

The TH-78A and TH-78E also come with a built-in GPS receiver, which is particularly beneficial for outdoor activities and emergency communications. The GPS functionality allows users to transmit their location coordinates, making it easier for others to locate them in case of emergencies.

In conclusion, the Kenwood TH-78A and TH-78E are powerful and versatile handheld transceivers that cater to amateur radio enthusiasts and professionals alike. Their dual-band operation, dual receive capabilities, comprehensive memory options, and advanced audio performance make these radios suitable for various communication needs. Whether for casual use or emergency situations, the TH-78 series remains a reliable choice for effective and efficient communication.
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