1. Introduction
This manual provides detailed instructions for the safe and efficient operation of your Retevis B63H PMR446 Two-Way Radio. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage.
2. Product Overview
The Retevis B63H is a professional, license-free PMR446 two-way radio designed for reliable communication. It features a slim 15mm profile, a hidden LED display, and a durable 1620mAh integrated battery. The device supports hands-free communication via VOX function and includes an emergency alarm for enhanced safety.
Image 1: Overview of the Retevis B63H Two-Way Radios and included earpieces.
3. Package Contents
Upon unpacking, please verify that all items listed below are present and in good condition:
- Retevis B63H Two-Way Radio (10 units)
- Earpieces (10 units)
- USB Charging Cable (5 units)
- Belt Clip (10 units)
- User Manual (this document)
Image 2: Contents included in the Retevis B63H package.
4. Setup
4.1 Charging the Battery
The Retevis B63H features an integrated 1620mAh Lithium-ion battery. To charge:
- Connect the USB charging cable to the radio's USB-C port.
- Connect the other end of the cable to a compatible USB power adapter (not included) or a computer USB port.
- The charging indicator on the radio will show the charging status.
- A full charge typically takes several hours.
Image 3: The 1620mAh Li-ion battery provides extended working and standby times.
4.2 Attaching the Belt Clip
Align the belt clip with the designated slots on the back of the radio and secure it firmly. This allows for convenient carrying.
4.3 Powering On/Off
To power on or off the radio, rotate the power/volume knob located at the top of the device clockwise or counter-clockwise until you hear a click.
4.4 Channel Selection
Use the channel selector knob (usually located near the antenna) to choose one of the 16 available channels. Ensure all radios intended for communication are set to the same channel.
Image 4: The hidden LED display shows the current channel and battery information.
4.5 Earpiece Connection
Insert the earpiece plug into the audio jack on the side of the radio for private listening and hands-free communication.
5. Operating Instructions
5.1 Basic Communication (PTT)
To transmit, press and hold the Push-To-Talk (PTT) button on the side of the radio. Speak clearly into the microphone. Release the PTT button to listen.
5.2 VOX Function (Voice Operated Exchange)
The VOX function allows for hands-free transmission. When activated, the radio will transmit automatically when it detects your voice.
- Activation: Press the Up key and turn on the radio. Set the channel to 7.
- VOX Levels: The radio supports VOX levels 1-9, allowing adjustment of sensitivity.
Image 5: The VOX function enables hands-free communication.
5.3 Emergency Alarm
In an emergency, the radio can emit an alarm to alert others.
- Activation: Press the Down key on the radio to activate the emergency alarm.
Image 6: The emergency alarm function provides an alert in critical situations.
5.4 Key Lock Function
The key lock function prevents accidental button presses, maintaining a constant connection on the selected channel.
Image 7: The key lock feature prevents unintended changes to settings.
5.5 CTCSS/DCS (Continuous Tone-Coded Squelch System / Digital Coded Squelch)
CTCSS/DCS codes help filter out unwanted conversations on the same channel. When enabled, your radio will only receive transmissions from other radios using the same CTCSS/DCS code. This enhances communication privacy and reduces interference.
6. Features
- Ultra-Slim Design: With a thickness of just 15mm and a weight of 103g, the B63H is highly portable and comfortable to carry.
- Shatterproof Hidden LED Display: The integrated LED screen is designed for durability and discreetly displays channel and battery information.
- Long Battery Life: The 1620mAh Li-ion battery provides extended operational time, supporting all-day use.
- License-Free Operation: As a PMR446 radio, the B63H operates on license-free frequencies, making it ready to use out of the box without additional fees or permits.
Image 8: The ultra-slim design of the Retevis B63H.
Image 9: The radios are ready for use right out of the box.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | Retevis |
| Model Number | B63H |
| Color | Black |
| Number of Channels | 16 |
| Frequency Range | 446.00625-446.19375 MHz (PMR446) |
| Maximum Range | 2.5 Kilometers (approximate, depends on terrain and conditions) |
| Battery Type | Integrated 1620mAh Lithium-ion |
| Voltage | 3.7 Volts |
| Charging Port | USB-C |
| Special Features | Shatterproof Hidden Screen, VOX, Emergency Alarm, Key Lock |
| Water Resistance Level | Not waterproof |
| Product Dimensions | 15mm thickness (approximate) |
| Country of Origin | China |
8. Maintenance
- Cleaning: Use a soft, damp cloth to clean the radio's exterior. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the radio in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the radio regularly, even if not in use for extended periods.
- Avoid Water: This radio is not waterproof. Avoid exposure to rain, splashes, or immersion in water.
9. Troubleshooting
9.1 No Power
- Ensure the battery is charged.
- Check if the power/volume knob is turned on.
9.2 Cannot Transmit or Receive
- Verify that all radios are on the same channel.
- Check if CTCSS/DCS codes are correctly set and matched on all radios.
- Ensure the PTT button is fully pressed when transmitting.
- Confirm the radio is not in key lock mode.
9.3 Poor Audio Quality
- Adjust the volume level.
- Ensure the microphone and speaker are not obstructed.
- Check for interference from other electronic devices.
- Move closer to the other communicating radio.
9.4 VOX Not Activating
- Ensure VOX is enabled (Up key + Channel 7).
- Adjust the VOX sensitivity level (1-9) to match your speaking volume.
10. Warranty and Support
Retevis offers the following warranty for the B63H Two-Way Radio:
- Radio Body: 2-year warranty.
- Accessories: 1-year warranty.
- Returns: 30-day no-reason return policy.
Beyond the warranty period, maintenance services are available, with buyers responsible for associated costs.
For any questions, technical support, or warranty claims, please contact Retevis customer service through the Amazon platform. We aim to respond within 12 hours.
