Why isn't my Kenwood TH-D75E Transceiver showing as a removable disk?
If the Kenwood Transceiver is not displayed as a removable disk even though it is connected to a PC via a USB cable, the USB selection setting may be set to "COM+AF/IF Output". Set the USB selection setting to "Mass Storage".
Why is the display on my Kenwood TH-D75E Transceiver darkening?
If your Kenwood Transceiver's display is dark, it may be due to the temperature of the transceiver rising. To resolve this, turn OFF the power supply or remain in the receiving state and place the transceiver in a cool place.
Why won't my Kenwood Transceiver power on with DC power supply?
If your Kenwood Transceiver is not turning on when using a regulated DC power supply or cigarette lighter socket, the issue might be a faulty power cable or a bad connection. Check the cable for any abnormalities and ensure the polarity is correct. It's also possible that the power cable fuse has blown out. If this is the case and the fuse blew for reasons unrelated to the transceiver, replace the fuse after repairing the cause.
Why doesn't transmission end when I release PTT on my Kenwood TH-D75E Transceiver?
If transmission does not end immediately even after [PTT] is released in DV/ DR mode on your Kenwood Transceiver, "GPS Info. in Frame" may be set to On. If it is not necessary, set "GPS Info. in Frame" to Off.
Why can't my Kenwood Transceiver read the microSD card data?
If data saved on the microSD memory card cannot be read by your Kenwood Transceiver, the data format may not be supported. Use a microSD memory card that was formatted on the transceiver.
Why can't I connect to a reflector on my Kenwood Transceiver?
If you are unable to connect to a reflector in DR mode on your Kenwood Transceiver, the access repeater may not support the reflector. Check with the management organization of the repeater.
Why is speaker sound transmitting on my Kenwood Transceiver?
If the speaker sound is being transmitted on your Kenwood Transceiver, the headset with VOX function may not be connected. Connect the headset with VOX function, and then set VOX to ON.
Why are signals not demodulating properly on my Kenwood Transceiver?
If received signals are not properly demodulated on your Kenwood Transceiver, the signal format (Demodulation mode) settings might be incorrect. Try changing to other modes. Also, if the receiving sound is distorted in AM/SSB/CW, the receiving signal might be too strong. Set the ATT function to ON.
Why can't I transmit using PTT on my Kenwood Transceiver?
If you are unable to transmit using PTT in DV/ DR mode on your Kenwood Transceiver, the transceiver may be in data communication mode. Cancel data communication mode and transmit using [PTT].
Why won't my Kenwood Transceiver resume scanning?
If your Kenwood Transceiver's Scan function does not resume scanning after stopping, the scan resume method might be set to Seek. Change it to Time (Time-Operated) or Carrier (Carrier- Operated).
Describes the main features of this transceiver, including APRS, D-STAR, GPS, and display capabilities.
Explains the notation used for instructions and keys to ensure clarity and avoid repetition.
Lists all items included in the package for user verification upon unpacking.
Instructions for securely attaching the supplied antenna to the transceiver.
Step-by-step guide for attaching and removing the rechargeable battery pack.
Procedure for inserting alkaline batteries into the optional battery case.
Instructions on how to install the provided belt clip accessory.
Guide for attaching the hand strap for secure handling and portability.
Details on charging the battery using the supplied charger or USB.
Specific instructions for charging the battery via USB Type-C.
Instructions for using an optional rapid charger for the battery pack.
Troubleshooting steps for common charger error messages during battery charging.
Information on expected operating times based on battery type and power output.
Guide for powering the transceiver and charging the battery via a vehicle's socket.
Instructions for connecting the transceiver to an external DC power supply.
Explanation of the function of each button, key, and control knob on the transceiver.
Overview of the transceiver's LCD screen and its various display areas.
Explanation of the various indicators and icons displayed on the transceiver screen.
Procedure for turning the transceiver power on and off.
How to set the internal clock, date, and time zone, including automatic GPS synchronization.
Instructions for increasing or decreasing the speaker volume.
Adjusting the audio volume balance between dual bands A and B.
Switching the transceiver between dual and single band operation modes.
Choosing between Band A or Band B for setting frequencies and operations.
Changing the available frequency bands for Band A and Band B.
Choosing the demodulation mode (FM, NFM, DV, AM, LSB, USB, CW) for signal reception.
Methods for selecting operating frequencies: VFO, Memory, and Call Channel modes.
Using stored frequencies and related data for quick recall.
Utilizing preset channels for immediate calls or as emergency channels.
Setting the squelch level to mute the speaker when no signals are present.
Procedure for transmitting signals by selecting a band and pressing the PTT button.
Adjusting transmit power levels for battery conservation or signal strength.
Unmuting the speaker to monitor signals when squelch is active.
Accessing secondary functions assigned to keys by pressing the [F] key.
How to enter the transceiver's menu system to configure settings.
Method to access specific menu items directly using their numbers.
Explanation of text input methods for entering names and messages in menus.
Detailed list and descriptions of all configurable settings available in the menu.
How to connect to FM repeaters using frequency offsets and tones.
Setting the transmit/receive frequency difference for repeater operation.
Automatically selects offset direction and tone based on selected frequency.
Enabling the tone squelch feature for selective repeater access.
Choosing the correct sub-audible tone frequency for accessing repeaters.
Scanning to identify incoming tone frequencies from received signals.
Transmitting a 1750 Hz tone, often required by European repeaters.
Swapping transmit and receive frequencies for direct simplex communication.
Setting the transmit frequency to be higher (+) or lower (-) than the receive frequency.
Understanding memory channel types for simplex and repeater operations.
Displaying and navigating the list of stored memory channels.
Toggling between frequency and memory name display in memory lists.
Registering simplex or standard repeater channels into memory.
Registering memory channels with non-standard transmit/receive frequency offsets.
Deleting specific memory channel entries from the transceiver's memory.
Accessing stored memory channels by number or from the memory list.
Selecting how memory channels are recalled (current band or all bands).
Modifying settings for memory channels, including groups and names.
Storing simplex frequencies for quick access and emergency use.
Storing odd-split channels for quick access and emergency use.
Viewing and accessing the list of configured call channels.
Assigning names to call channels for easier identification.
Organizing memory channels into groups for simplified management.
Changing the active memory group for scanning or recall.
Deleting all memory channels within a specific group.
Assigning custom names to memory groups for better organization.
Copying memory channel contents to the VFO for editing or use.
Choosing how the transceiver resumes scanning after detecting a signal.
Scanning all frequencies within the currently selected band.
Scanning within user-defined frequency ranges stored in program scan memory.
Scanning a 1 MHz segment around the current frequency.
Scanning all frequencies stored in the memory channels.
Excluding specific memory channels from scan sequences.
Scanning memory channels registered within linked groups.
Periodically checking a designated priority channel for activity.
Monitoring call channels and VFO/memory simultaneously.
Turning on the display backlight for a short period when scanning pauses.
Setting up Continuous Tone Coded Squelch for selective communication.
Setting up Digital Coded Squelch for selective communication.
Scanning to identify incoming CTCSS frequencies from received signals.
Scanning to identify incoming DCS codes from received signals.
Setting different encode/decode signaling types for TX and RX.
Choosing specific cross tone/code frequency combinations for repeater access.
Sending DTMF tones manually by pressing keypad buttons.
Adjusting the speed of DTMF tone transmission for compatibility.
Setting the pause length between DTMF tones stored in memory.
Maintaining transmit mode while pressing keys for calls.
Saving DTMF codes and names into dedicated memory channels.
Sending pre-stored DTMF codes from memory channels.
Locking DTMF transmission keys to prevent accidental presses.
Overview of EchoLink functionality and memory storage.
Registering EchoLink callsigns, node numbers, and commands into memory.
Sending stored EchoLink callsigns and commands.
Setting the frequency increment step for tuning.
Adjusting audio modes (LSB, USB, CW, AM) for precise tuning.
Engaging an attenuator to reduce strong signal interference for clearer reception.
Setting upper and lower frequency limits for selectable VFO ranges.
Adjusting receiver settings to prevent interference from CPU clock harmonics.
Selecting audio output modes (AF, IF, Detect) for PC connection.
Switching the FM mode between normal and narrow bandwidth.
Enabling or disabling the internal bar antenna for reception.
Preventing unauthorized or accidental transmissions.
Limiting transmission duration to prevent thermal damage.
Adjusting the input sensitivity for both internal and external microphones.
Reducing interference by adjusting filters for SSB, CW, and AM modes.
Enabling voice-activated transmission without pressing PTT.
Turning the VOX function on or off.
Adjusting the sensitivity level for the VOX circuit.
Configuring VOX to force transmission even when receiving a signal.
Setting the delay time before VOX transmission ends.
Setting the pitch frequency during CW reception.
Selecting USB (Normal) or LSB (Reverse) side for CW mode.
Managing LED behavior (e.g., BUSY LED) to reduce battery consumption.
Turning on display and key illumination for use in dark conditions.
Customizing the message displayed when the transceiver is turned on.
Changing the displayed information during single band operation.
Changing the design of the S/RF meter display.
Setting the background color of the display to black or white.
Controlling backlight for APRS, D-STAR alerts and scanning status.
Enabling or disabling equalizer settings for transmission and reception.
Enabling or disabling the beep sound generated by key presses.
Adjusting the volume level for key beep sounds.
Extending battery life by automatically reducing power consumption.
Automatic transceiver power-off function after a period of inactivity.
Checking the current battery capacity status.
Setting whether the battery charges when connected to power while the unit is ON.
Customizing the functions assigned to the transceiver and microphone keys.
Locking keys to prevent accidental operation or setting changes.
Locking the volume control to prevent inadvertent changes.
Setting display units for speed, distance, altitude, and temperature.
Setting the interface for various data output applications (GPS, APRS, KISS, DV/DR).
Choosing the display language for the transceiver interface.
Checking the currently installed firmware version of the transceiver.
Procedures for resetting the transceiver to default settings (VFO, Partial, Full).
Enabling or disabling the integrated GPS receiver.
Storing personal position data (latitude, longitude) for APRS packets.
Adjusting position data precision for privacy or specific transmission needs.
Viewing GPS data such as latitude, altitude, speed, and target direction.
Switching between normal transceiver operation and dedicated GPS receiver mode.
Specific key functions available when operating solely in GPS receiver mode.
Enabling GPS power saving to optimize battery life.
Sending GPS receiver data (NMEA) to a PC via USB or Bluetooth.
Registering and managing up to 100 position points with associated data.
Viewing and editing the list of saved position data.
Reviewing detailed information of stored position points.
Modifying saved position data including name, icon, and altitude.
Organizing the position memory list by name or date/time.
Deleting saved position data from the transceiver's memory.
Registering specific locations as target points for navigation.
Displaying distance and direction information relative to target points.
Recording travel path data using the GPS logger onto a microSD card.
Setting conditions for saving track log data (time, distance, beacon).
Deleting saved track log files from the microSD memory card.
Overview of APRS data transmission formats and capabilities.
Explanation of Digipeater and IGate functions in the APRS network.
Essential configurations for general APRS mobile station operation.
Setting the unique callsign (with SSID) required for APRS transmissions.
Selecting an icon to represent your station's status and location to others.
Customizing station icons with text characters for enhanced identification.
Adding predefined comments to APRS position data for context.
Pre-programming custom text messages to transmit with position data.
Configuring the frequency used for APRS network communication.
Activating the APRS data communication mode on the transceiver.
Sending position packets automatically or manually via beacon transmission.
Receiving, storing, and recalling APRS station information.
Setting cursor behavior (Followed/Fixed) on the station list screen.
Deleting specific station entries from the APRS station list.
Sorting the station list by callsign, date/time, or distance.
Displaying only specific types of station data (e.g., Weather, Mobile) in the list.
Saving station list data (position, etc.) to the GPS position memory.
Deleting all station data from the APRS station memory.
Managing received and transmitted APRS messages.
Configuring digipeater paths (New-N, Relay, Region) for APRS transmissions.
Configuring the built-in TNC for APRS, including data speed and band selection.
Setting carrier detect method to inhibit transmission under certain conditions.
Setting the transmission delay time before sending APRS data.
Preventing accidental changes to data band frequency or PTT transmissions.
Selecting the method for transmitting APRS beacons (Manual, PTT, SmartBeaconing).
Setting the time interval for automatic APRS beacon transmissions.
Extending packet transmission interval when position data remains static.
Automatically adjusting transmit packet path based on elapsed time.
Configuring beacon transmission parameters like speed and altitude.
Setting and transmitting object information including name, type, and location.
Reporting frequency information to enable voice communication by other stations.
Optimizing beacon transmission based on driving direction and speed.
Setting minimum delay between beacon transmissions based on direction changes.
Configuring waypoint data format, length, and output type for GPS receivers.
Filtering received APRS packets based on position limit and data type.
Saving common phrases for quick insertion into APRS messages.
Programming automatic replies to received APRS messages.
Pre-setting callsigns for automatic replies to specific stations.
Setting the delay time before an auto-reply message is sent.
Entering the custom text message for auto-replies.
Configuring beep sounds for received and transmitted APRS packets.
Setting a special alert sound for messages from specific stations.
Configuring display area and interrupt time for received information.
Enabling voice announcements for received APRS messages.
Configuring the transceiver to operate as a standalone digipeater.
Enabling the UI digipeat function for relaying packets.
Setting characters to use as aliases for UI digipeat function.
Enabling the UIflood digipeat function for packet relaying.
Enabling the UItrace digipeat function for packet relaying.
Outputting data from USB port/Bluetooth after receiving APRS data.
Setting APRS data communication protocol (APRS or Altnet).
Notifying stations of proximity via beacon tones based on voice alert function.
Exchanging messages only among members within specific message groups.
Operating the transceiver in KISS mode for APRS software and IGate/Digipeater use.
Setting the data band frequency for the KISS network.
Choosing USB or Bluetooth interface for connecting to a computer.
List of KISS standard commands supported by the built-in TNC.
Overview of the D-STAR system for digital amateur radio communications.
Using Digital Voice (DV) and Digital Repeater (DR) modes for communication.
Methods for communication in DR mode: Local area, Gateway, and Callsign designation.
Setting the transceiver's callsign for D-STAR operation.
Accessing and using digital mode functions via the menu.
Performing direct communication between transceivers without a repeater.
Making calls through a local repeater to establish communication.
Making calls via a gateway repeater to reach distant areas through the Internet.
Replying to gateway calls by setting the destination callsign.
Making calls to specific stations by designating their callsigns.
Managing a list of up to 300 registered callsigns for communication.
Organizing the callsign list alphabetically or by other criteria.
Replying to received calls directly by simply pressing PTT.
Setting automatic callsign replies to received messages.
Viewing logs of received signals, including callsigns and repeater information.
Establishing indirect communication via repeaters within the same zone.
Selecting the access repeater for D-STAR operations from various methods.
Configuring the route repeater settings for destination calls.
Selecting the destination repeater or callsign for outgoing calls.
Viewing detailed information about registered repeaters.
Performing high-speed data communications using the voice band.
Using EMR mode for emergency communication and alerts.
Correcting slight frequency offsets to improve received signal stability.
Enabling automatic FM signal reception when in DV mode.
Outputting digital data received from D-STAR via USB or Bluetooth.
Using break call function to interrupt ongoing communications.
Opening squelch based on matching destination callsign or digital code.
Transmitting location information using GPS data during DV/DR mode operation.
Selecting NMEA sentence formats (GGA, GLL, etc.) for GPS data transmission.
Transmitting positioned GPS data automatically at set intervals.
Displaying received information in a break-in screen during operation.
Announcing callsigns of received D-STAR signals for identification.
Notifying transmission end with a beep sound when a D-STAR signal is received.
Connecting to D-STAR reflectors via internet using a PC or Android device.
Scanning stations listed in the repeater or hotspot lists within DR mode.
Excluding specific repeaters or hotspots from scan targets in D-STAR lists.
Managing the pre-installed repeater list, including adding, editing, and deleting entries.
Managing hotspot memory channels for connecting to D-STAR reflectors.
Removing hotspot entries from the list.
Overview of the transceiver's operation as a USB 2.0 device and its supported classes.
Steps for connecting the transceiver to a PC for configuration and data access.
Selecting the transceiver's USB operating mode (COM or Mass Storage).
Adjusting the audio output level to the PC when connected via USB.
Enabling or disabling the Bluetooth function on the transceiver.
Steps for pairing a Bluetooth compatible headset with the transceiver.
Procedure for entering the PIN code when requested during device connection.
Ending communication with a connected Bluetooth device.
Connecting to devices that have been previously paired.
Wireless connection to a PC using a Bluetooth compatible adapter.
Initiating the pairing process from the PC to connect with the transceiver.
Confirming transceiver's Bluetooth device name, address, and class.
Automatically connecting to the last used Bluetooth device when power is turned on.
Information on compatible microSD and microSDHC card types and sizes.
Procedure for inserting and removing the microSD memory card.
Safely removing the microSD memory card to prevent data corruption.
Preparing a new microSD memory card for use by formatting it.
Methods for saving and loading various data types to/from the memory card.
Loading transceiver settings and voice messages from the memory card.
Loading repeater list information from the memory card.
Loading callsign list information from the memory card.
Deleting saved files from the microSD memory card.
Recording communication history (QSO logs) to the microSD memory card.
Checking the status, capacity, and file information of the microSD memory card.
Overview of the function for recording voice communications to a microSD card.
Procedures for recording audio, including selecting the band.
Enabling the recording function to capture audio during transmissions or when squelch is open.
Managing and playing back recorded audio files.
Deleting recorded audio files from the transceiver's memory.
Activating the FM radio receiver function.
Directly inputting frequencies to tune into FM radio stations.
Scanning for available FM broadcast stations.
Managing registered FM broadcast stations, including naming and editing.
Saving frequently listened FM broadcast stations to memory channels.
Choosing a registered FM radio station from the memory channel list.
Removing unwanted FM stations from the memory channels.
Alternating between tuning by frequency and recalling registered stations.
Copying a broadcast station's frequency from memory to VFO.
Assigning custom names to broadcast stations registered in FM radio memory.
Toggling the display between station frequency and assigned memory name.
Setting the delay before radio sound returns after reception or transmission.
Recording voice messages to memory channels for later playback or transmission.
Playing back recorded voice messages to check content.
Transmitting recorded voice messages from memory channels.
Repeating the playback and sending of a voice message from one channel.
Setting the time interval for repeat playback of voice messages.
Assigning custom names to voice message memory channels.
Deleting recorded voice messages from the transceiver's memory.
Monitoring voice messages during playback and transmission.
Adjusting the reading speed of voice guidance information.
Setting pronunciation method for callsigns (Standard, Phonetic).
Enabling or disabling voice guidance for transceiver status and operations.
Adjusting the volume level for voice guidance output.
Enabling voice announcements for received APRS messages.
Announcing callsigns of received D-STAR signals without viewing the screen.
Enabling or disabling the weather alert function for NOAA tone detection.
Accessing specific weather channels within the memory system.
Scanning available weather alert channels for received signals.
Controlling external mobile transceivers via DTMF tones from the TH-D75A.
Initial setup requirements for wireless control, including on the TH-D75A.
General notes regarding product maintenance and factory alignment.
Procedures and guidelines for returning the product for repair.
Information required when contacting technical support for operational problems.
Instructions for cleaning the exterior case of the product using a neutral detergent.
Guide to identifying and resolving common operational malfunctions and circuit failures.
General technical specifications including frequency ranges, modes, and operating conditions.
Technical specifications related to the transmitter's performance.
Technical specifications related to the receiver's performance.
Technical specifications for the Bluetooth communication features.
Technical specifications for the integrated GPS module.
Describes the main features of this transceiver, including APRS, D-STAR, GPS, and display capabilities.
Explains the notation used for instructions and keys to ensure clarity and avoid repetition.
Lists all items included in the package for user verification upon unpacking.
Instructions for securely attaching the supplied antenna to the transceiver.
Step-by-step guide for attaching and removing the rechargeable battery pack.
Procedure for inserting alkaline batteries into the optional battery case.
Instructions on how to install the provided belt clip accessory.
Guide for attaching the hand strap for secure handling and portability.
Details on charging the battery using the supplied charger or USB.
Specific instructions for charging the battery via USB Type-C.
Instructions for using an optional rapid charger for the battery pack.
Troubleshooting steps for common charger error messages during battery charging.
Information on expected operating times based on battery type and power output.
Guide for powering the transceiver and charging the battery via a vehicle's socket.
Instructions for connecting the transceiver to an external DC power supply.
Explanation of the function of each button, key, and control knob on the transceiver.
Overview of the transceiver's LCD screen and its various display areas.
Explanation of the various indicators and icons displayed on the transceiver screen.
Procedure for turning the transceiver power on and off.
How to set the internal clock, date, and time zone, including automatic GPS synchronization.
Instructions for increasing or decreasing the speaker volume.
Adjusting the audio volume balance between dual bands A and B.
Switching the transceiver between dual and single band operation modes.
Choosing between Band A or Band B for setting frequencies and operations.
Changing the available frequency bands for Band A and Band B.
Choosing the demodulation mode (FM, NFM, DV, AM, LSB, USB, CW) for signal reception.
Methods for selecting operating frequencies: VFO, Memory, and Call Channel modes.
Using stored frequencies and related data for quick recall.
Utilizing preset channels for immediate calls or as emergency channels.
Setting the squelch level to mute the speaker when no signals are present.
Procedure for transmitting signals by selecting a band and pressing the PTT button.
Adjusting transmit power levels for battery conservation or signal strength.
Unmuting the speaker to monitor signals when squelch is active.
Accessing secondary functions assigned to keys by pressing the [F] key.
How to enter the transceiver's menu system to configure settings.
Method to access specific menu items directly using their numbers.
Explanation of text input methods for entering names and messages in menus.
Detailed list and descriptions of all configurable settings available in the menu.
How to connect to FM repeaters using frequency offsets and tones.
Setting the transmit/receive frequency difference for repeater operation.
Automatically selects offset direction and tone based on selected frequency.
Enabling the tone squelch feature for selective repeater access.
Choosing the correct sub-audible tone frequency for accessing repeaters.
Scanning to identify incoming tone frequencies from received signals.
Transmitting a 1750 Hz tone, often required by European repeaters.
Swapping transmit and receive frequencies for direct simplex communication.
Setting the transmit frequency to be higher (+) or lower (-) than the receive frequency.
Understanding memory channel types for simplex and repeater operations.
Displaying and navigating the list of stored memory channels.
Toggling between frequency and memory name display in memory lists.
Registering simplex or standard repeater channels into memory.
Registering memory channels with non-standard transmit/receive frequency offsets.
Deleting specific memory channel entries from the transceiver's memory.
Accessing stored memory channels by number or from the memory list.
Selecting how memory channels are recalled (current band or all bands).
Modifying settings for memory channels, including groups and names.
Storing simplex frequencies for quick access and emergency use.
Storing odd-split channels for quick access and emergency use.
Viewing and accessing the list of configured call channels.
Assigning names to call channels for easier identification.
Organizing memory channels into groups for simplified management.
Changing the active memory group for scanning or recall.
Deleting all memory channels within a specific group.
Assigning custom names to memory groups for better organization.
Copying memory channel contents to the VFO for editing or use.
Choosing how the transceiver resumes scanning after detecting a signal.
Scanning all frequencies within the currently selected band.
Scanning within user-defined frequency ranges stored in program scan memory.
Scanning a 1 MHz segment around the current frequency.
Scanning all frequencies stored in the memory channels.
Excluding specific memory channels from scan sequences.
Scanning memory channels registered within linked groups.
Periodically checking a designated priority channel for activity.
Monitoring call channels and VFO/memory simultaneously.
Turning on the display backlight for a short period when scanning pauses.
Setting up Continuous Tone Coded Squelch for selective communication.
Setting up Digital Coded Squelch for selective communication.
Scanning to identify incoming CTCSS frequencies from received signals.
Scanning to identify incoming DCS codes from received signals.
Setting different encode/decode signaling types for TX and RX.
Choosing specific cross tone/code frequency combinations for repeater access.
Sending DTMF tones manually by pressing keypad buttons.
Adjusting the speed of DTMF tone transmission for compatibility.
Setting the pause length between DTMF tones stored in memory.
Maintaining transmit mode while pressing keys for calls.
Saving DTMF codes and names into dedicated memory channels.
Sending pre-stored DTMF codes from memory channels.
Locking DTMF transmission keys to prevent accidental presses.
Overview of EchoLink functionality and memory storage.
Registering EchoLink callsigns, node numbers, and commands into memory.
Sending stored EchoLink callsigns and commands.
Setting the frequency increment step for tuning.
Adjusting audio modes (LSB, USB, CW, AM) for precise tuning.
Engaging an attenuator to reduce strong signal interference for clearer reception.
Setting upper and lower frequency limits for selectable VFO ranges.
Adjusting receiver settings to prevent interference from CPU clock harmonics.
Selecting audio output modes (AF, IF, Detect) for PC connection.
Switching the FM mode between normal and narrow bandwidth.
Enabling or disabling the internal bar antenna for reception.
Preventing unauthorized or accidental transmissions.
Limiting transmission duration to prevent thermal damage.
Adjusting the input sensitivity for both internal and external microphones.
Reducing interference by adjusting filters for SSB, CW, and AM modes.
Enabling voice-activated transmission without pressing PTT.
Turning the VOX function on or off.
Adjusting the sensitivity level for the VOX circuit.
Configuring VOX to force transmission even when receiving a signal.
Setting the delay time before VOX transmission ends.
Setting the pitch frequency during CW reception.
Selecting USB (Normal) or LSB (Reverse) side for CW mode.
Managing LED behavior (e.g., BUSY LED) to reduce battery consumption.
Turning on display and key illumination for use in dark conditions.
Customizing the message displayed when the transceiver is turned on.
Changing the displayed information during single band operation.
Changing the design of the S/RF meter display.
Setting the background color of the display to black or white.
Controlling backlight for APRS, D-STAR alerts and scanning status.
Enabling or disabling equalizer settings for transmission and reception.
Enabling or disabling the beep sound generated by key presses.
Adjusting the volume level for key beep sounds.
Extending battery life by automatically reducing power consumption.
Automatic transceiver power-off function after a period of inactivity.
Checking the current battery capacity status.
Setting whether the battery charges when connected to power while the unit is ON.
Customizing the functions assigned to the transceiver and microphone keys.
Locking keys to prevent accidental operation or setting changes.
Locking the volume control to prevent inadvertent changes.
Setting display units for speed, distance, altitude, and temperature.
Setting the interface for various data output applications (GPS, APRS, KISS, DV/DR).
Choosing the display language for the transceiver interface.
Checking the currently installed firmware version of the transceiver.
Procedures for resetting the transceiver to default settings (VFO, Partial, Full).
Enabling or disabling the integrated GPS receiver.
Storing personal position data (latitude, longitude) for APRS packets.
Adjusting position data precision for privacy or specific transmission needs.
Viewing GPS data such as latitude, altitude, speed, and target direction.
Switching between normal transceiver operation and dedicated GPS receiver mode.
Specific key functions available when operating solely in GPS receiver mode.
Enabling GPS power saving to optimize battery life.
Sending GPS receiver data (NMEA) to a PC via USB or Bluetooth.
Registering and managing up to 100 position points with associated data.
Viewing and editing the list of saved position data.
Reviewing detailed information of stored position points.
Modifying saved position data including name, icon, and altitude.
Organizing the position memory list by name or date/time.
Deleting saved position data from the transceiver's memory.
Registering specific locations as target points for navigation.
Displaying distance and direction information relative to target points.
Recording travel path data using the GPS logger onto a microSD card.
Setting conditions for saving track log data (time, distance, beacon).
Deleting saved track log files from the microSD memory card.
Overview of APRS data transmission formats and capabilities.
Explanation of Digipeater and IGate functions in the APRS network.
Essential configurations for general APRS mobile station operation.
Setting the unique callsign (with SSID) required for APRS transmissions.
Selecting an icon to represent your station's status and location to others.
Customizing station icons with text characters for enhanced identification.
Adding predefined comments to APRS position data for context.
Pre-programming custom text messages to transmit with position data.
Configuring the frequency used for APRS network communication.
Activating the APRS data communication mode on the transceiver.
Sending position packets automatically or manually via beacon transmission.
Receiving, storing, and recalling APRS station information.
Setting cursor behavior (Followed/Fixed) on the station list screen.
Deleting specific station entries from the APRS station list.
Sorting the station list by callsign, date/time, or distance.
Displaying only specific types of station data (e.g., Weather, Mobile) in the list.
Saving station list data (position, etc.) to the GPS position memory.
Deleting all station data from the APRS station memory.
Managing received and transmitted APRS messages.
Configuring digipeater paths (New-N, Relay, Region) for APRS transmissions.
Configuring the built-in TNC for APRS, including data speed and band selection.
Setting carrier detect method to inhibit transmission under certain conditions.
Setting the transmission delay time before sending APRS data.
Preventing accidental changes to data band frequency or PTT transmissions.
Selecting the method for transmitting APRS beacons (Manual, PTT, SmartBeaconing).
Setting the time interval for automatic APRS beacon transmissions.
Extending packet transmission interval when position data remains static.
Automatically adjusting transmit packet path based on elapsed time.
Configuring beacon transmission parameters like speed and altitude.
Setting and transmitting object information including name, type, and location.
Reporting frequency information to enable voice communication by other stations.
Optimizing beacon transmission based on driving direction and speed.
Setting minimum delay between beacon transmissions based on direction changes.
Configuring waypoint data format, length, and output type for GPS receivers.
Filtering received APRS packets based on position limit and data type.
Saving common phrases for quick insertion into APRS messages.
Programming automatic replies to received APRS messages.
Pre-setting callsigns for automatic replies to specific stations.
Setting the delay time before an auto-reply message is sent.
Entering the custom text message for auto-replies.
Configuring beep sounds for received and transmitted APRS packets.
Setting a special alert sound for messages from specific stations.
Configuring display area and interrupt time for received information.
Enabling voice announcements for received APRS messages.
Configuring the transceiver to operate as a standalone digipeater.
Enabling the UI digipeat function for relaying packets.
Setting characters to use as aliases for UI digipeat function.
Enabling the UIflood digipeat function for packet relaying.
Enabling the UItrace digipeat function for packet relaying.
Outputting data from USB port/Bluetooth after receiving APRS data.
Setting APRS data communication protocol (APRS or Altnet).
Notifying stations of proximity via beacon tones based on voice alert function.
Exchanging messages only among members within specific message groups.
Operating the transceiver in KISS mode for APRS software and IGate/Digipeater use.
Setting the data band frequency for the KISS network.
Choosing USB or Bluetooth interface for connecting to a computer.
List of KISS standard commands supported by the built-in TNC.
Overview of the D-STAR system for digital amateur radio communications.
Using Digital Voice (DV) and Digital Repeater (DR) modes for communication.
Methods for communication in DR mode: Local area, Gateway, and Callsign designation.
Setting the transceiver's callsign for D-STAR operation.
Accessing and using digital mode functions via the menu.
Performing direct communication between transceivers without a repeater.
Making calls through a local repeater to establish communication.
Making calls via a gateway repeater to reach distant areas through the Internet.
Replying to gateway calls by setting the destination callsign.
Making calls to specific stations by designating their callsigns.
Managing a list of up to 300 registered callsigns for communication.
Organizing the callsign list alphabetically or by other criteria.
Replying to received calls directly by simply pressing PTT.
Setting automatic callsign replies to received messages.
Viewing logs of received signals, including callsigns and repeater information.
Establishing indirect communication via repeaters within the same zone.
Selecting the access repeater for D-STAR operations from various methods.
Configuring the route repeater settings for destination calls.
Selecting the destination repeater or callsign for outgoing calls.
Viewing detailed information about registered repeaters.
Performing high-speed data communications using the voice band.
Using EMR mode for emergency communication and alerts.
Correcting slight frequency offsets to improve received signal stability.
Enabling automatic FM signal reception when in DV mode.
Outputting digital data received from D-STAR via USB or Bluetooth.
Using break call function to interrupt ongoing communications.
Opening squelch based on matching destination callsign or digital code.
Transmitting location information using GPS data during DV/DR mode operation.
Selecting NMEA sentence formats (GGA, GLL, etc.) for GPS data transmission.
Transmitting positioned GPS data automatically at set intervals.
Displaying received information in a break-in screen during operation.
Announcing callsigns of received D-STAR signals for identification.
Notifying transmission end with a beep sound when a D-STAR signal is received.
Connecting to D-STAR reflectors via internet using a PC or Android device.
Scanning stations listed in the repeater or hotspot lists within DR mode.
Excluding specific repeaters or hotspots from scan targets in D-STAR lists.
Managing the pre-installed repeater list, including adding, editing, and deleting entries.
Managing hotspot memory channels for connecting to D-STAR reflectors.
Removing hotspot entries from the list.
Overview of the transceiver's operation as a USB 2.0 device and its supported classes.
Steps for connecting the transceiver to a PC for configuration and data access.
Selecting the transceiver's USB operating mode (COM or Mass Storage).
Adjusting the audio output level to the PC when connected via USB.
Enabling or disabling the Bluetooth function on the transceiver.
Steps for pairing a Bluetooth compatible headset with the transceiver.
Procedure for entering the PIN code when requested during device connection.
Ending communication with a connected Bluetooth device.
Connecting to devices that have been previously paired.
Wireless connection to a PC using a Bluetooth compatible adapter.
Initiating the pairing process from the PC to connect with the transceiver.
Confirming transceiver's Bluetooth device name, address, and class.
Automatically connecting to the last used Bluetooth device when power is turned on.
Information on compatible microSD and microSDHC card types and sizes.
Procedure for inserting and removing the microSD memory card.
Safely removing the microSD memory card to prevent data corruption.
Preparing a new microSD memory card for use by formatting it.
Methods for saving and loading various data types to/from the memory card.
Loading transceiver settings and voice messages from the memory card.
Loading repeater list information from the memory card.
Loading callsign list information from the memory card.
Deleting saved files from the microSD memory card.
Recording communication history (QSO logs) to the microSD memory card.
Checking the status, capacity, and file information of the microSD memory card.
Overview of the function for recording voice communications to a microSD card.
Procedures for recording audio, including selecting the band.
Enabling the recording function to capture audio during transmissions or when squelch is open.
Managing and playing back recorded audio files.
Deleting recorded audio files from the transceiver's memory.
Activating the FM radio receiver function.
Directly inputting frequencies to tune into FM radio stations.
Scanning for available FM broadcast stations.
Managing registered FM broadcast stations, including naming and editing.
Saving frequently listened FM broadcast stations to memory channels.
Choosing a registered FM radio station from the memory channel list.
Removing unwanted FM stations from the memory channels.
Alternating between tuning by frequency and recalling registered stations.
Copying a broadcast station's frequency from memory to VFO.
Assigning custom names to broadcast stations registered in FM radio memory.
Toggling the display between station frequency and assigned memory name.
Setting the delay before radio sound returns after reception or transmission.
Recording voice messages to memory channels for later playback or transmission.
Playing back recorded voice messages to check content.
Transmitting recorded voice messages from memory channels.
Repeating the playback and sending of a voice message from one channel.
Setting the time interval for repeat playback of voice messages.
Assigning custom names to voice message memory channels.
Deleting recorded voice messages from the transceiver's memory.
Monitoring voice messages during playback and transmission.
Adjusting the reading speed of voice guidance information.
Setting pronunciation method for callsigns (Standard, Phonetic).
Enabling or disabling voice guidance for transceiver status and operations.
Adjusting the volume level for voice guidance output.
Enabling voice announcements for received APRS messages.
Announcing callsigns of received D-STAR signals without viewing the screen.
Enabling or disabling the weather alert function for NOAA tone detection.
Accessing specific weather channels within the memory system.
Scanning available weather alert channels for received signals.
Controlling external mobile transceivers via DTMF tones from the TH-D75A.
Initial setup requirements for wireless control, including on the TH-D75A.
General notes regarding product maintenance and factory alignment.
Procedures and guidelines for returning the product for repair.
Information required when contacting technical support for operational problems.
Instructions for cleaning the exterior case of the product using a neutral detergent.
Guide to identifying and resolving common operational malfunctions and circuit failures.
General technical specifications including frequency ranges, modes, and operating conditions.
Technical specifications related to the transmitter's performance.
Technical specifications related to the receiver's performance.
Technical specifications for the Bluetooth communication features.
Technical specifications for the integrated GPS module.
General| Frequency Range (TX) | 144-146 MHz, 430-440 MHz |
|---|---|
| GPS | Yes |
| APRS | Yes |
| Bluetooth | Yes |
| Memory Channels | 1000 |
| Waterproof | IP54 |
| Modulation Types | FM |
| Output Power | 5W |
| Receiver Sensitivity | 0.16 μV (12 dB SINAD) |
| Battery | Li-ion |
| Display | Color TFT |
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