Kenwood TH78E, TH-78A instruction manual Transmitter Operation, To transmit, follow these steps

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TRANSMITTER OPERATION

WARNING:

Before you attempt to transmit, attach an antenna with a low standing wave ratio to the antenna connector. Failure to provide a proper load may cause damage to the final amplifier section. Always check that the frequency is clear before transmitting.

1 To transmit, follow these steps:

1Use any of the frequency selection methods discussed on page 12 to select an operating frequency.

2Listen to the frequency to see if it’s occupied before attempting to transmit on it.

3Press the PTT (Press to talk) switch. The ON AIR indicator and battery level meter will appear.

4 Speak into the microphone from the recommended distance of 5 cm (2 inches). Talking closer or farther away can result in loss of clarity, an excessively wide transmit signal, or weak audio.

5Release the PTT switch to return to the receive mode. The ON AIR and battery level meter indicators should go out.

2 Changing Transmitter Output Power

Press the F key, then the D/LOW key to select three different transmitter output power levels. Repeat this function to stop through the power level selections. The actial transmitter output power for this unit depends on the power supply used. Indicators will appear on the display to tell you which level you have selected.

You can select the transmitter output for both the VHF and the UHF band.

The “E and L” indicators show the Economic Low power position. Use Economic Low power for line- of-sight short-distance communication.

The “L” indicators shows the Low power position. Use Low power for short-distance communication.

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Contents TH-78A Contents Dual Tone Squelch System Dtss Accessories Before OperationControls Overview Key Page Page Receiver Operation Tuning Control and Volume ControlGetting Started Separate tuning control function Separate volume control functionReturning to the original mode Selecting a Frequency Direct Keyboard Frequency Entry12.5 62.5 37.5 87.5 Step Size Selection Using the Tuning ControlChanges in the Displayed Frequency Programmable VFO Tuning Limits VFO tuning range 144.000 145.000 146.000 147.000 Basic Receiving FunctionsTransmitter Operation Changing Transmitter Output PowerTo transmit, follow these steps Output Powerwatts Time-Out-TimerTX. Stop Function Using the Memory Microprocessor Memory BackupInitializing The Memory Memory ChannelMemory Contents Entering Memory DataEntering Normal Simplex/Repeater Channels Clearing a Memory ChannelEntering Split Channel Frequencies Entering The Call Channel FrequencyRecalling Memory Channels Using the numeric keypadMemory Shift Function Setting Message Display CancelMemory Channel Character Display Character registrationScan operation cancel ScanningHold/Resume Programming Hold/Resume SelectionScan Options Scanning Memory ChannelsBand scan Programmable Band ScanConfirming Scan Limit Initiating Programmable Band ScanMHz Scan VFO/Memory ScanCALL/VFO Scan Call / Memory Scan11 V/M/CVFO/Memory/CALL Scan Alert FunctionRepeater Operation Transmitter OffsetsAutomatic Offset Selection Selecting the Offset DirectionManual Offset Selection Reverse FunctionSelecting Tone Frequencies Tone OperationTone Function Operating Autopatch Operations Selecting Delay TimeTo activate the keypad Dtmf Memory Recalling Stored Dtmf Codes in Receive ModeStoring Dtmf Codes Operation AS a Repeater Making a Dtmf CallCtcss Operation Operating the Ctcss FunctionUsing the Dtss Function Dual Tone Squelch System DtssDtss Code Selecting Dtss CodesPaging Operation Overview Setting Paging Codes Paging Code MemoryGroup Communication Network Example Sending Pages CallingCalling All Group Members Code setting mode Paging mode Calling a Specific Group MemberReceiving a Page with an Individual Code Receiving Pages WaitReceiving a Page with a Group code Canceling Signal Squelch Canceling signal type squelchLocking Out Codes Answer-BackUsing the Message Memory Memory write procedureMessage Transmission and Reception Message Transmission ModesLnpu t Key Dtss mode Message Memory CheckMessage Memory Transmission Message ReceptionReceive Message Memory Paging modeReceive message memory clear Tone Alert System Enhanced Receiver FunctionsSelecting a Beep Sound Monitor BeepOffLamp Key LockVolume adjustment when you use an earphone CAUT/ONTo simultaneously receive two UHF band signals To simultaneously receive two VHF band signalsAutomatic Band Change Function Single Band Operation MHz ModeChannelized Frequency Display Power Saver Features Battery Saver ModeAutomatic Power Off APO Battery Save Time SelectionTime Setting Timer FunctionTime Alarm Setting Switch-on Timer SettingTimer Start/Stop Switch-off Timer SettingAlarm Function Duplex Operation Power on Message and Function Message Power On MessageChanging Power-on Message Function Message250MS 450MSMaintenance ServiceGeneral Information 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

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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