Kenwood TH-78A, TH78E instruction manual Manual Offset Selection, Reverse Function

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4 Manual Offset Selection

The factory default sets the automatic offset frequency. You can select any offset frequency in the range 0 to 99.9 MHz in 100 kHz steps.

1Press and hold the SHIFT/REV key and switch the power on.

2Press the F key for longer than one second, then press the SHIFT/REV key.

The current offset frequency is shown on the LCD.

3Rotate the Tuning control, and select the desired offset frequency.

4Press any front panel key to return to the normal frequency display.

To return to the normal offset, reset the VFO. (see page 19)

Note

Selecting an offset frequency that would result in the radio transmitting outside its intended range will cause an error tone to be sounded and transmit to be inhibited. Reselect a valid offset frequency if this occurs.

5 The Reverse Function

Some repeaters use a ’ reverse pair’, that is, the transmit/receive frequencies are the reverse of other repeaters.

For example, repeater A uses 146.000 as an input frequency, and 146.600 as an output frequency. Repeater B might use 146.600 as an input frequency, and 146.000 as an output frequency. It would be quite inconvenient to have to reprogram the transceiver each time you want to use these repeaters.

Press the F key, then press the SHIFT/REV key. The R indicator displays to remind you that you are working a reverse pair.

Press the F key, then press the SHIFT/REV key again to return to normal. The R indicator will disappear.

This function is also useful in checking the repeater input frequency, allowing you to determine if you are in range for simplex communication.

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Contents TH-78A Contents Dual Tone Squelch System Dtss Before Operation AccessoriesControls Overview Key Page Page Getting Started Tuning Control and Volume ControlReceiver Operation Returning to the original mode Separate volume control functionSeparate tuning control function Direct Keyboard Frequency Entry Selecting a Frequency12.5 62.5 37.5 87.5 Changes in the Displayed Frequency Using the Tuning ControlStep Size Selection Programmable VFO Tuning Limits Basic Receiving Functions VFO tuning range 144.000 145.000 146.000 147.000To transmit, follow these steps Changing Transmitter Output PowerTransmitter Operation TX. Stop Function Time-Out-TimerOutput Powerwatts 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 FrequenciesMemory Shift Using the numeric keypadRecalling Memory Channels 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 Function Operating Tone OperationSelecting Tone Frequencies To activate the keypad Selecting Delay TimeAutopatch Operations Storing Dtmf Codes Recalling Stored Dtmf Codes in Receive ModeDtmf Memory 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 CodesCalling All Group Members Sending Pages CallingGroup Communication Network Example Calling a Specific Group Member Code setting mode Paging modeReceiving a Page with a Group code Receiving Pages WaitReceiving a Page with an Individual 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 ReceptionReceive message memory clear Paging modeReceive Message Memory Selecting a Beep Sound Enhanced Receiver FunctionsTone Alert System BeepOff MonitorLamp Key LockCAUT/ON Volume adjustment when you use an earphoneAutomatic Band Change Function To simultaneously receive two VHF band signalsTo simultaneously receive two UHF band signals Channelized Frequency Display MHz ModeSingle Band Operation Battery Saver Mode Power Saver FeaturesAutomatic Power Off APO Battery Save Time SelectionTimer Function Time SettingTime Alarm Setting Switch-on Timer SettingAlarm Function Switch-off Timer SettingTimer Start/Stop 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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