1. Introduction
This manual provides essential instructions for the safe and efficient operation of your HYTERA BD558 DMR Two-way Radio. The BD558 is a professional-grade walkie-talkie supporting both analog and digital modes, designed for reliable communication. Please read this manual thoroughly before using the device.
2. Package Contents
Verify that all items listed below are included in your package. If any item is missing or damaged, please contact your dealer.
- 1 x BD558 Radio
- 1 x Antenna (UHF 400-470MHz or VHF 136-174MHz, depending on model)
- 1 x Li-ion Battery (1500mAh, BL1506)
- 1 x Single Unit Charger (CH10L23)
- 1 x Switching Power Adapter (EU, UK, or USA standard)
- 1 x Nylon Strap
- 1 x Belt Clip
- 1 x Documentation Kit (this manual and other relevant documents)

Figure 2.1: HYTERA BD558 Radio and Standard Accessories
3. Product Overview
Familiarize yourself with the main components of your BD558 radio.

Figure 3.1: Front View of BD558 Radio

Figure 3.2: Side View with PTT Button
4. Setup Guide
4.1. Installing the Battery
- Align the battery with the battery slot on the back of the radio.
- Gently push the battery into place until it clicks securely.
- To remove, slide the battery latch (if present) and pull the battery away from the radio.

Figure 4.1: Battery Installation
CAUTION: Never attempt to disassemble or modify the battery. Do not dispose of it in fire. Air pressure adjusting hole: Do not tamper with or cover!
4.2. Installing the Antenna
- Screw the antenna into the connector on the top of the radio clockwise until it is firmly seated.
- Do not overtighten.
4.3. Charging the Battery
- Connect the switching power adapter to the single unit charger.
- Plug the adapter into an AC power outlet.
- Place the radio with the battery installed into the charger slot.
- The charging indicator light will show the charging status (e.g., red for charging, green for fully charged).
4.4. Installing the Belt Clip and Nylon Strap
- Attach the belt clip to the designated slots on the back of the radio.
- Thread the nylon strap through the loop on the radio for convenient carrying.
5. Operating Instructions
5.1. Powering On/Off
- To power on: Rotate the Power/Volume knob clockwise until a click is heard and the radio powers on.
- To power off: Rotate the Power/Volume knob counter-clockwise until a click is heard and the radio powers off.
5.2. Adjusting Volume
Rotate the Power/Volume knob clockwise to increase volume and counter-clockwise to decrease volume.
5.3. Channel Selection
The BD558 supports 256 channels across 16 zones in digital mode. Use the Channel Selector knob (typically the top knob next to the antenna) to select the desired channel.
5.4. Transmitting and Receiving (Push-to-Talk - PTT)
- To transmit: Press and hold the PTT button (located on the side of the radio). Speak clearly into the microphone.
- To receive: Release the PTT button. The radio will automatically receive signals on the selected channel.
5.5. Dual Modes (Analog & Digital)
The BD558 operates in both analog and digital modes. The radio can be programmed to switch between these modes or operate on mixed channels, allowing for seamless communication with both analog and digital radios.
5.6. Scan Function
The scan function allows you to monitor channels for activity. The BD558 supports scanning of analog channels only or digital channels only. Refer to the full documentation for programming scan lists.
5.7. One Touch Call
This feature allows for quick access to pre-programmed calls or functions with a single button press. Configuration is done via programming software.
5.8. VOX (Voice Operated Transmit)
When VOX is enabled, the radio will automatically transmit when it detects your voice, without needing to press the PTT button. This feature is configurable via programming.
5.9. Emergency Alarm
The emergency alarm function can be activated in critical situations to alert other radios. This feature is typically programmed by your dealer or administrator.
6. Maintenance and Care
6.1. General Cleaning
- Clean the radio surface with a soft, lint-free cloth.
- For stubborn dirt, use a cloth dampened with mild soap and water.
- Do not use harsh chemicals, solvents, or abrasive cleaners.
- Ensure the radio is dry before use.
6.2. Battery Care
- Charge the battery fully before initial use.
- Avoid overcharging or completely draining the battery frequently to prolong its lifespan.
- Store the battery in a cool, dry place when not in use.
- Do not expose the battery to extreme temperatures or direct sunlight.
- As noted on the battery, never attempt to disassemble or modify the battery. Do not dispose of it in fire.
6.3. Environmental Considerations
The BD558 is designed to be robust with MIL-STD-810 G and IP55 compliance, meaning it offers protection against dust and low-pressure water jets. However, avoid submerging the radio in water or exposing it to excessive dust or extreme temperatures.
7. Troubleshooting
If you encounter issues with your radio, try the following basic troubleshooting steps:
- Radio does not power on: Ensure the battery is correctly installed and fully charged.
- Cannot transmit or receive: Check if the radio is on the correct channel and within range of other radios. Verify the PTT button is functioning.
- Poor audio quality: Adjust the volume. Check for obstructions on the speaker or microphone. Ensure the antenna is securely attached.
- Battery life is short: Ensure the battery is fully charged. Battery performance can degrade over time; consider replacing an old battery.
For more complex issues, please contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand Name | Hytera |
| Model Number | BD550/BD552/BD555/BD556/BD558 |
| Walkie Talkie Type | Portable |
| Frequency Range | UHF: 400-470MHZ; VHF: 136-174 MHZ |
| Output Power (w) | 3w-5w (UHF High power: 4W; UHF Low power: 1W) |
| Battery Capacity (mAh) | 1500 |
| Battery Included | Yes |
| Waterproof / Water-Resistant | IP55 |
| Material | Plastic |
| Storage Channel | 256 |
| Dimensions | 110x59x30mm |
| Is_Display | Yes |
| Maximum Range | 5km-10km |
| Origin | Mainland China |
| Certification | CE, FCC, RoHS |
| Channel Spacing | 25KHz / 12.5KHz |
| Battery Life (5/5/90) | Analog/Digital: 12/16 hours (1500mAh) |
| Weight | 250g (with AN0435W09 and BL1506) |
9. User Tips
To maximize your experience with the HYTERA BD558 radio:
- Always ensure your battery is fully charged before extended use.
- For optimal range, ensure the antenna is securely attached and not obstructed.
- Experiment with both analog and digital modes to understand their differences in clarity and range in various environments.
- Consider programming frequently used channels or functions to the one-touch call buttons for quick access.
10. Warranty and Support
Your HYTERA BD558 radio is covered by a manufacturer's warranty. Please refer to the specific warranty card included in your documentation kit for details on coverage and duration.
For technical assistance, troubleshooting beyond basic steps, or any questions regarding your radio, please contact the seller's customer service. They offer 24-hour sales service and professional support.





