Introduction
The Retevis RB48 Waterproof Walkie Talkies are heavy-duty two-way radios designed for reliable communication in demanding environments. Featuring advanced triple proofing (waterproof, dustproof, and drop-proof), these radios are built to withstand harsh conditions, making them ideal for outdoor activities, construction sites, and emergency preparedness.
A pair of yellow and black Retevis RB48 walkie talkies in their charging dock.
Video demonstrating the IP67 waterproof and dustproof capabilities of the Retevis RB48 walkie talkie.
Video showcasing the heavy-duty, shock-resistant features of the Retevis RB48 walkie talkie.
What's in the Box
- 2 x Retevis RB48 walkie talkies with 2000mAh (Li-ion) Battery
- 2 x Belt Clips
- 1 x USB-C Charging dock (2 in 1)
- 1 x Charger adapter
- 1 x User Manual
An organized display of all items included in the Retevis RB48 package.
Setup Guide
1. Battery Installation
The Retevis RB48 comes with pre-installed 2000mAh Lithium-Ion batteries. To access or replace the battery, carefully remove the yellow back cover by unscrewing the two screws. Insert the battery into the compartment, ensuring correct polarity, and then reattach the cover securely.
The back of a Retevis RB48 walkie talkie with its battery compartment open.
2. Charging the Radios
Use the provided USB-C charging dock and charger adapter to power up your walkie talkies. Place each radio into a slot on the charging dock. The indicator light on the dock will show charging status. A full charge provides up to 20 hours of battery life (5% transmit/5% receive/90% standby).
Two Retevis RB48 walkie talkies charging in their dual-slot dock.
3. Attaching the Belt Clip
The reinforced belt clip can be attached to the back of the radio for convenient carrying. Align the clip with the designated screw holes on the radio's back and secure it firmly. This design ensures the clip remains stable even during active use.
Close-up of the Retevis RB48 walkie talkie's belt clip attachment point.
Operating Instructions
1. Power On/Off and Volume Control
To power on or off the radio, rotate the knob located at the top of the unit clockwise or counter-clockwise. This knob also controls the volume. Rotate clockwise to increase volume and counter-clockwise to decrease it.
Top view of the Retevis RB48 walkie talkie.
2. Channel Selection
The RB48 features 22 channels for communication. To change channels, press the MENU key once. The current channel number on the LCD screen will flash. Use the Up or Down keys (located on the side) to select your desired channel. Press the PTT (Push-To-Talk) key to confirm and save your selection.
Close-up of the Retevis RB48 walkie talkie's display.
3. CTCSS/DCS Codes
To ensure private communication and avoid interference, you can set CTCSS (Continuous Tone-Coded Squelch System) or DCS (Digitally Coded Squelch) codes. After selecting your channel, press the MENU key again. The CTCSS/DCS code will flash. Use the Up or Down keys to select the code and press PTT to save. Both radios must be on the same channel and have the same CTCSS/DCS code to communicate.
Important notice regarding CTCSS/DCS settings for communication.
4. Key-Lock Function
The Key-Lock function prevents accidental channel changes or setting adjustments. To activate or deactivate, long-press the MENU key. The key icon on the screen will indicate its status. When the key icon disappears, the radio can be used normally.
Illustration of the Key-Lock function.
5. VOX Function (Voice Operated Exchange)
The VOX function allows for voice-activated transmission without needing to press the PTT button, freeing your hands for other tasks. Refer to the user manual for detailed steps on enabling and adjusting VOX sensitivity levels.
Demonstration of the VOX function.
6. Vibration Reminder
In noisy environments, the vibration reminder ensures you receive communications. To activate this feature, press the MENU key 8 times until "U1" appears on the screen. Use the Up or Down keys to select ON or OFF, then press the PTT key to save your setting.
Illustration of the vibration reminder function.
7. NOAA Weather Alert
The RB48 includes 11 NOAA weather channels to provide advance warning of severe weather conditions. This feature allows you to stay informed about the latest weather forecasts and alerts, enhancing safety during outdoor activities.
Graphic illustrating the NOAA Weather Alert feature.
8. Range and Communication Test
The Retevis RB48 offers long-distance signal range, up to 300,000 sq.ft. or 25 floors. For optimal performance, ensure clear line of sight and minimal obstructions. Conduct a range test in your typical operating environment to understand effective communication distances.
A video demonstrating the range and ease of use of the Retevis RB48 walkie talkies in an outdoor setting, showing clear communication over distances.
A short video tutorial on the basic operation of the Retevis RB48 walkie talkies, highlighting their user-friendly interface.
A video review of the Retevis RB48 Heavy Duty Walkie Talkie, focusing on its long-range capabilities.
An unboxing and review video of the Retevis RB48 Waterproof Walkie Talkies, detailing its features and performance.
Maintenance
1. Cleaning
Being IP67 waterproof and dustproof, the RB48 can be easily cleaned. Wipe the radio with a damp cloth to remove dirt or dust. For stubborn grime, use a mild soap solution and rinse thoroughly. Ensure all port covers are securely closed before cleaning with water.
The back of a Retevis RB48 walkie talkie with its battery compartment open.
2. Battery Care
To prolong battery life, avoid overcharging or completely draining the 2000mAh Li-ion battery. Store radios in a cool, dry place when not in use for extended periods. Recharge batteries regularly, even if not in active use, to maintain optimal performance.
3. Storage
Store the walkie talkies in a dry, cool environment away from direct sunlight and extreme temperatures. Ensure all port covers are sealed to maintain their waterproof and dustproof integrity.
Troubleshooting
1. Radios Cannot Communicate
- Ensure both radios are powered on.
- Verify both radios are set to the same channel.
- Confirm both radios have the same CTCSS/DCS code enabled.
- Check battery levels; low battery can affect transmission range.
- Ensure no physical obstructions (e.g., large buildings, dense terrain) are blocking the signal path.
2. Poor Audio Quality
- Adjust volume levels on both radios.
- Ensure the microphone and speaker grilles are clear of debris.
- Move closer to the other radio to improve signal strength.
- Check for sources of electromagnetic interference.
Specifications
| Feature | Detail |
|---|---|
| Model Number | FA9246A-C9034A |
| Water Resistance Level | IP67 Waterproof & Dustproof |
| Drop Proof | 2 meters (passed 1000 drops) |
| Battery Capacity | 2000mAh Lithium-Ion |
| Battery Life | Up to 20 hours |
| Charging Method | USB-C Charging Dock |
| Number of Channels | 22 FRS Channels |
| NOAA Channels | 11 NOAA Weather Channels |
| Item Weight | 1.59 pounds |
| Product Dimensions | 1.3 x 2.4 x 7.1 inches |
Warranty and Customer Support
Retevis provides a 5-year warranty for the radio body and a 1-year warranty for accessories. We also offer a 30-day no-reason return policy. For any inquiries or support, please contact us on Amazon. We commit to replying within 12 hours.
