Hongkaide DM9100 DMR Digital Radio User Manual

1. Introduction

Thank you for purchasing the Hongkaide DM9100 DMR Digital Radio. This multi-functional vehicle walkie-talkie is designed for amateur radio enthusiasts, offering robust performance and a wide range of features. It supports both UHF and VHF broadband communication, digital dual-mode operation, and is compatible with existing conventional analog systems. Key features include direct mode double time slot communication, various call types, voice encryption, manual frequency adjustment, key alarm, and short message functions.

This manual provides detailed instructions for the proper use, installation, and maintenance of your DM9100 radio. Please read it thoroughly to understand all functions and precautions before operating the product. Keep this manual for future reference.

Safety Precautions

• Do not operate the radio while driving; it is dangerous.
• The intercom is designed for a 12-13.8V DC power supply.
• Avoid placing the unit in dusty, wet, or splashing environments, or on uneven surfaces.
• Keep the radio away from interference-generating equipment (e.g., televisions, generators).
• Do not expose the unit to direct sunlight or place it near heating devices.
• If the unit emits smoke or a strange smell, immediately cut off the power supply and send it to a maintenance service station for inspection.
• Avoid prolonged high-power transmissions, which can cause the intercom to overheat.
• WARNING: Before using the equipment, ensure the antenna is properly installed. Operating the radio without an antenna can cause damage to the unit.

2. Package Contents

Please check the package contents against the list below. If any items are missing or damaged, contact your dealer.

• Main Unit (DM9100 Transceiver)
• Handheld Microphone (HM-66) with DTMF keyboard
• Power Cable (XT30-1F)
• Fuses (one pair, HF-01)
• Handheld Microphone Hook (TG-1)
• Main Unit Bracket (HMB-02)
• USB Write Frequency Line (HPC-01) (Optional)
• External Speaker (SP-02) (Optional)
• Vehicle Antenna (HCA-01) (Optional)

3. Setup and Installation

3.1. Selecting an Installation Location

Choose a safe and convenient location for installation, ensuring it does not obstruct driving or interfere with vehicle safety features like airbags. The chosen position must be able to support the weight of the intercom.

• Do not install the walkie-talkie in a position that may cause personal injury during normal vehicle operation.
• Do not install near airbags or air conditioning vents.

3.2. Mounting the Main Unit

Follow these steps to install the main unit using the provided mounting bracket:

1. Align the mounting bracket with the desired installation holes. Use M5x8mm nuts if required.
2. Secure the bracket using the screws, nuts, and washers supplied (HSS-01D).
3. Adjust the position and angle of the unit for optimal viewing and access.

3.3. Power Connection

The DM9100 requires a 12-13.8V DC power supply. Ensure sufficient current capacity (recommended 12A for fixed station operation).

1. Connect the DC power cable (red wire to positive (+), black wire to negative (-)) directly from the intercom to the vehicle battery. Use the shortest possible route. A cigarette lighter jack is recommended for convenience.
2. Organize the cable to avoid high temperatures, moisture, and interference from the ignition system.
3. Wrap heat-resistant tape around the fuse box to protect against moisture.
4. To prevent short circuits, disconnect other wires from the negative terminal of the battery before connecting the intercom.
5. Check the polarity of the connection before powering on.
6. Reconnect any previously removed wiring to the negative terminal.
7. Connect the DC power cable to the power supply connector of the intercom. Ensure both joints click into place.

Important: Do not cut the power cable or remove the fuse box. Do not connect the intercom directly to an AC socket. Use a voltage regulator if operating as a fixed station.

3.4. Antenna Connection

For optimal performance, install a high-efficiency and accurately tuned antenna with a characteristic impedance of 50Ω. Use a low-loss coaxial feeder.

• WARNING: Do not transmit without connecting the antenna or other matching loads, as this may damage the intercom.
• A longer antenna (approx. 1 meter) generally provides better receiving and transmitting effects.
• Ensure the feeder cable is of appropriate length; excessively long feeders can lead to power loss. If the feeder is too long, coil the remaining length in a snake Z-shape rather than cutting it.

3.5. Microphone Connection

Connect the handheld microphone to the intercom host or panel as shown in the diagram.

3.6. PC Linkage for Programming

To use programming software, connect the intercom to a PC using an optional HPC-01 programming cable. Consult your dealer for the correct software and cable.

4. Basic Operation

4.1. Power On/Off

• Power On: In the shutdown state, press the power button (usually labeled 'PWR' or 'mountain') for a moment. The radio will emit a double beep, display a boot message, and then show indicators and the current operating frequency. The intercom stores current parameters and recalls them on next power-on.
• Power Off: In the startup state, press the power button for a moment to turn off the intercom.

4.2. Volume Adjustment

Rotate the [VOL] knob clockwise to increase the volume and counter-clockwise to decrease it. For initial setup, set it to approximately the 9 o'clock position.

4.3. Your First QSO (Quick Start Operation)

Follow these steps for a basic communication:

1. Press the power button to turn on the intercom.
2. Turn the [VOL] knob clockwise to a comfortable listening level.
3. Turn the [DIAL] control knob to select the desired receiving frequency.
4. To transmit, hold the microphone approximately 5 cm from your mouth.
5. Press and hold the [PTT] (Push-To-Talk) button on the microphone, then speak clearly.
6. Release the [PTT] button to receive.
7. Repeat steps 4-6 to continue communication.

4.4. Frequency and Channel Selection

The DM9100 operates in two modes: Frequency Mode (VFO) and Channel Mode (MR).

• Switching Modes: Long press a preset P1-P6 programmable key (V/M switch) to toggle between VFO and MR modes.
• VFO Mode (Frequency Selection):
  1. Input frequency directly using the microphone's digital keypad (six digits).
  2. Use the [DIAL] knob to adjust the frequency. Clockwise increases, counter-clockwise decreases.
  3. Use the [▲]/[V] keys on the microphone to increase/decrease step values or continuously adjust frequency.
  4. Working frequency bands: 136-174 MHz and 400-470 MHz. Emission frequency range: 144-148MHz and 430-440MHz.
• MR Mode (Channel Selection):
  1. Rotate the [DIAL] knob to select the desired channel.
  2. Input channel number (three digits, e.g., 001-1024) using the microphone's digital keypad.

4.5. Keyboard Lock and Unlock

The intercom features a keyboard lock function to prevent accidental operation.

• Method 1 (Shortcut Key): Press the pre-programmed [keypad lock] key to lock. Press FUNC + the lock key to unlock.
• Method 2 (Microphone Keyboard): Long press the microphone button to lock. Press FUNC + the microphone button to unlock.
• Automatic Lock: The keyboard can be set to automatically lock after a period of inactivity.

4.6. Cancelling Static Noise

Press the microphone's PTT-M key until the console emits a "beep" sound and the noise circuit is silent. Repeat if necessary to mute the static circuit.

4.7. LCD Screen Display

The LCD screen provides various indicators for the radio's status and functions. It is a 240*64 large dot matrix display, supporting dual row display or dual row character display. The backlight color can be customized.

Key indicators include:

• MAIN/SUB: Main/secondary channel indication.
• VOX: Voice Operated Exchange.
• REC: Recording status.
• 01:54: Current time.
• DIG/ANA: Digital/Analog mode.
• GPS: GPS status (on/off, located/not located).
• BT: Bluetooth status (on/off, connected/not connected).
• Battery Icon: Battery level.
• Signal Strength: Indication of received/transmitted signal strength.
• BUSY: Channel busy indicator.
• MR/VFO: Channel mode/Frequency mode.
• P1-P6: Programmable key indicators.

5. Advanced Functions

5.1. Call Functions

• Digital Call: Supports individual call, group call, and full call.
• Initiating a Call: Press and hold the [PTT] button in standby mode, or use the menu to select a contact from the address list.
• Receiving and Answering Calls: In digital mode, the radio will ring briefly if the caller's DMR ID is in your contact list. The LCD will display caller information (DMRID, alias, city, state, country, call type). Press [PTT] to reply.
• Ending a Call: Release [PTT]. Calls end automatically after a set hold time if no one transmits.
• Analog Call: Initiated on simulated channels.
• No Signaling Call: Initiated on channels without signaling to all users.
• Calling in Frequency Mode: Initiate digital or analog calls in VFO mode by switching to VFO and entering the transmission frequency.

5.2. DMR Emergency Alert

The alarm function allows users to request assistance in critical moments. It can be programmed via PC software with different alarm types:

• Honking Only: Intercom emits a sharp honking sound.
• Secret: Intercom urgently calls the emergency alarm number without visual/audio prompts for the initiator.
• Secret Voice: Intercom calls the emergency alarm number; initiator has no visual prompt but can receive voice.
• Normal: Intercom calls the emergency alarm number. This is a high-priority call that interrupts ongoing communications.

To initiate, press the pre-programmed [emergency mode open] key. During an emergency call, if automatic emergency call is enabled, you can speak without holding [PTT].

5.3. Encryption

The radio supports voice and data encryption using keys. This ensures privacy by requiring consistent keys for decryption. Encryption types include custom ARC4 and AES256, compatible with MOTO encryption. Encrypted channels require pre-programming via PC software.

5.4. Address List and Contacts

The address list stores contact information, allowing selection of target contact ID and call type. It can store up to 800 records and import up to 300,000 CSV contacts.

• Call ID: Device ID (1-16776415).
• Group Call ID: Identifies specific groups (1-16776415).
• Full Call ID: Fixed ID 16777215.
• Aliases: Up to 16 English characters or 8 Chinese characters per contact.

5.5. Scan Settings

The scan function monitors activity on channels. You can create up to 32 scan lists, each with up to 16 analog or digital channels. The current channel in a scan list is fixed and cannot be deleted.

• Scan Switch: Press the pre-programmed [Scan] key or use the menu to enable/disable scanning.
• Scan List Editing: Add/delete scan channels and set priority channels (P1, P2).
• VFO Scan Range: Set the start and end frequencies for scanning in VFO mode.
• Scan Recovery Mode:
  • Time (TO): Scan stops for 5s when a signal is detected, then resumes.
  • Carrier (CO): Scan stops until the signal disappears, then resumes after 2s.
  • Search (SE): Scan stops when a signal is detected and stops the scan.

5.6. Region Management

Regions help manage channels, with each region supporting up to 64 channels. The intercom must retain at least one area with at least one channel.

• Add Area: Create new regions.
• Select Area: Choose an active region.
• Add Channel to Region: Add new channels to existing regions.

5.7. SMS (Short Message Service)

The SMS menu allows sending and receiving text messages (up to 256 characters).

• Inbox: Stores received messages.
• Write SMS: Compose new messages.
• Send Box: Stores sent messages.
• Quick Text: Pre-set messages (up to 20).
• Draft Box: Stores drafted messages (up to 100).
• View Short Messages: Access messages via menu or instant view.
• Send Text Messages: Select 'Write SMS' or 'Quick Text', then choose a contact or enter a number, and press FUNC to send.
• Delete Short Messages: Select a message from Inbox, Outbox, or Draft box, then press FUNC to delete.

5.8. Call Records

View incoming, outgoing, and missed call records. You can initiate calls, send SMS, or delete records from this menu.

• No Calls: Displays up to 20 latest unanswered calls.
• Received Calls: Displays up to 20 latest received calls.
• Dial Calls: Displays up to 20 latest dialed and sent calls.
• Delete Records: Delete individual or all records.

5.9. Off-Grid Function

This function enables communication between units when transit services are unavailable. When enabled, the screen displays a field icon.

5.10. Tone/Tip Settings

Customize intercom prompts, including on/off status, tone type, and volume.

• Intercom Mute: Silence all prompts.
• Key Prompt Tone: Enable/disable button press tones.
• SMS Prompt: Enable/disable prompts for received SMS.
• Call Prompt Tones: Set prompt tones for group and individual calls.

5.11. Transmitting Power

The radio offers three power output levels: High, Medium, and Low. Use lower power for short-distance communication to reduce interference and conserve power.

Output power can be changed during transmission using the P1-P6 programmable keys.

5.12. Backlight Settings

Customize the LCD backlight color, brightness, and behavior.

• Backlight Color: Mix red, green, and blue lights to achieve various colors.
• Backlight Delay: Set the duration the backlight stays on after a button press (5-15 seconds).
• Boot-on Interface Display: Choose between custom characters or a default picture on startup.

5.13. Clock and Fan Control

• Clock: Set the real-time clock for local time display and related functions (e.g., call record time, alarm).
• Fan Control: Enable the fan function to reduce high temperatures and protect the radio's lifespan.
• Auto Shut Off: Configure the radio to automatically shut off after a set period (30-720 minutes) or disable this function.

5.14. Call Matching and Sound Recording

• Single Call Match: Match the receiving single ID for individual calls.
• Group Call Match: Match the receiving group ID for group calls.
• Sound Recording: Records digital calls for security purposes. Supports receiving, transmitting, or both. Recordings can be played back, deleted, and details viewed.

5.15. DMR Device Programming

This section covers various programmable parameters for digital channels, typically configured via PC software.

• Receiving/Emission Frequency: Set the operating frequencies for the current channel.
• Channel Type: Define whether the channel is analog or digital.
• Intercom ID/Alias: Set a unique ID and alias for your radio, displayed to other users.
• Double Time Slots: Configure pass-through dual capacity for efficient communication.
• Receive Group List: Edit or configure groups for receiving calls.
• Digital Encryption: Enable and select encryption keys (ARC4, AES256) for secure communication.

5.16. Positioning (GPS/APRS)

The DM9100 supports GPS, Beidou, and GLONASS positioning systems.

• Positioning Function: Enable to view current positioning details (longitude, latitude, time, date, satellite count). Note that enabling this increases power consumption.
• APRS Switch: When enabled, the digital channel displays GPS information of the transmitter. Requires GPS functionality.
• Reporting Channel/Interval: Configure the channel and frequency at which GPS/APRS data is reported.
• Reports Beacons: Transmit GPS letter beacons.

5.17. Roaming

The radio supports roaming to find and lock onto the nearest relay station. This function allows the radio to automatically search for and switch to a stronger base station signal when the current one weakens.

• Single Roaming: Roam to a single nearest relay station.
• Roaming Area: Define and manage areas for roaming.
• Timed Roaming: Configure roaming based on a set time interval.

5.18. Restore Factory Settings

This function restores all settings of the intercom to their factory defaults. This operation is irreversible.

5.19. Bluetooth (PDA)

The radio supports Bluetooth connectivity for wireless handheld microphones and PTT functions.

• Bluetooth Switch: Enable or disable Bluetooth.
• Bluetooth Pairing: Pair with wireless handheld microphones.
• Bluetooth Volume Gain: Adjust speaker volume output level for Bluetooth devices.
• Bluetooth MIC Gain: Adjust microphone voice volume level for Bluetooth devices.

6. Maintenance

6.1. General Information

The DM9100 is factory-adjusted and tested to technical parameters. Under normal conditions, it should operate within these parameters. Adjustable microcapacitors, coils, and resistors are pre-installed and should only be adjusted by qualified technicians. Unauthorized adjustments may void the warranty.

With proper operation, the intercom can last for years without needing retuning.

6.2. Repair Notes

If the unit requires repair, return it to the authorized dealer or repair center. Include a detailed description of the problem, your contact information (phone, fax, email), and the model/serial number of the intercom. Do not send only parts; the complete intercom must be returned. Do not use broken or inadequate packaging for transport to avoid further damage.

6.3. Cleaning

Over time, the keys, knobs, and casing may become dirty. Remove the control knobs and clean them with a neutral detergent and warm water. Wipe the housing with a neutral cleaner (not strong chemicals) and a wet cloth.

7. Troubleshooting

This section lists common operational issues and their possible solutions. These problems are often due to improper connections, incorrect settings, or programming errors, rather than circuit failure. Consult this table before seeking maintenance.

8. Specifications

8.1. Radiating Portion

8.2. Simulation Receiving Portion

Note: All specifications are subject to change without prior notice.

9. Warranty and Support

9.1. Warranty Information

A 12-month warranty is offered for the main unit, and 6 months for accessories. Each unit is tested before shipping. If defective upon arrival, contact us within 3 days for a replacement. If defective within 30 days of receipt, we will cover one-way shipping for warranty. After 30 days, buyers are responsible for shipping fees.

All returned items must be in original condition, including box, packaging, and all other accessories.

9.2. Further Support

For a comprehensive guide and additional details, please refer to the full user manual PDF available at: Hongkaide DM9100 User Manual (PDF).

10. User Tips

• Programming Software: For advanced frequency settings and customization, specific programming software is required. Ensure you obtain the correct software and USB write frequency cable (HPC-01) from your dealer for seamless configuration.
• Antenna Placement: For optimal signal reception and transmission, consider mounting your antenna in a clear, elevated position, such as on the roof of your vehicle, away from obstructions.
• Power Supply Stability: When operating as a fixed station, use a stable 13.8V DC power supply with at least 12A current capacity to prevent performance issues.