1. Introduction
This manual provides detailed instructions for the safe and efficient operation of your Retevis RT24 PMR446 Two-Way Radio. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage.
The Retevis RT24 is a professional, license-free PMR446 two-way radio designed for reliable communication. It features 16 channels, 50 CTCSS / 105 DCS privacy codes, and a robust design suitable for various environments.
Image 1.1: Overview of four Retevis RT24 two-way radios, each with its charging base and an included earpiece. The radios are black with orange Push-to-Talk buttons.
2. Package Contents
Upon unpacking, please verify that all items listed below are present and in good condition:
- Retevis RT24 Two-Way Radio (x4)
- 1100mAh Li-ion Battery Pack (x4)
- Charging Base with EU Standard 3-pin Plug (x4)
- Earpiece with PTT/MIC (x4)
- Belt Clip (x4)
- Hand Strap (x4)
Image 2.1: Detailed view of the Retevis RT24 package contents, illustrating one radio unit and four sets of accessories: earpieces, batteries, charging bases, belt clips, and hand straps.
3. Product Overview
Familiarize yourself with the various components of your Retevis RT24 radio:
Image 3.1: Front, side, and back views of the Retevis RT24 radio with key components labeled for identification.
- Antenna: For transmitting and receiving signals. Non-removable.
- Channel Selection Knob: Rotary switch to select one of the 16 available channels.
- Power/Volume Knob: Turn clockwise to power on and increase volume; turn counter-clockwise to decrease volume and power off.
- Indicator Light: Illuminates to indicate status (e.g., transmitting, receiving, low battery).
- Earpiece/Mic Jack: Port for connecting external audio accessories like earpieces or microphones.
- PTT (Push-to-Talk) Button: Press and hold to transmit your voice; release to listen.
- Belt Clip: For attaching the radio to a belt or pocket.
- Battery Pack: Rechargeable Lithium-ion battery.
Image 3.2: Detail of the earpiece/microphone jack, designed for compatible audio accessories.
Image 3.3: Rear view of the radio, highlighting the battery pack and its connection points, which feature a waterproof rubber ring for enhanced durability.
4. Setup
4.1 Battery Installation
- Align the battery pack with the grooves on the back of the radio.
- Slide the battery pack upwards until it clicks securely into place.
- Ensure the battery is firmly attached to prevent accidental disconnection.
Image 4.1: Detail of the battery contacts, designed for a secure and durable connection.
4.2 Charging the Battery
Before initial use, fully charge the battery pack. The 1100mAh Lithium-ion battery provides approximately 74 hours of standby time and 8-12 hours of normal use.
- Insert the radio with the battery attached into the charging base.
- Connect the charging base to a standard EU 3-pin power outlet using the provided adapter.
- The indicator light on the radio or charging base will typically show red during charging and turn green when fully charged.
Image 4.2: The Retevis RT24 radio being charged in its dedicated charging base, illustrating the charging process and battery life.
Image 4.3: A detailed view of the radio placed in its charging cradle, ready for power connection.
5. Operating Instructions
5.1 Power On/Off and Volume Adjustment
- To power on the radio, rotate the Power/Volume knob clockwise until you hear a click.
- Continue rotating clockwise to increase the volume.
- To decrease volume, rotate counter-clockwise.
- To power off, rotate the knob counter-clockwise until you hear a click.
5.2 Channel Selection
- Rotate the Channel Selection knob to choose one of the 16 available channels.
- Ensure all radios intended for communication are set to the same channel.
5.3 Transmitting and Receiving (PTT)
- To transmit, press and hold the PTT (Push-to-Talk) button located on the side of the radio. Speak clearly into the microphone.
- Release the PTT button to stop transmitting and listen for a response.
- The indicator light will typically glow red when transmitting and green when receiving.
5.4 Privacy Codes (CTCSS/DCS)
The Retevis RT24 supports 50 CTCSS (Continuous Tone-Coded Squelch System) and 105 DCS (Digitally Coded Squelch) codes. These codes help filter out unwanted conversations on the same channel, ensuring more private communication.
- To communicate using privacy codes, all radios must be set to the same channel and the same CTCSS/DCS code.
- Refer to the programming software (requires a programming cable, sold separately) for detailed instructions on setting CTCSS/DCS codes.
5.5 VOX Function (Voice Operated Exchange)
The VOX function allows for hands-free operation, enabling transmission when your voice is detected, without needing to press the PTT button.
- The VOX function can be enabled and adjusted via programming software.
- Adjust the VOX sensitivity level to prevent accidental transmissions from background noise.
Image 5.1: Illustration of hands-free communication using the VOX function, ideal for situations where pressing the PTT button is inconvenient.
6. Maintenance
- Cleaning: Wipe the radio's surface with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Battery Care: Avoid overcharging or completely draining the battery frequently to prolong its lifespan. Store batteries in a cool, dry place when not in use for extended periods.
- Storage: Store the radio in a dry, dust-free environment away from extreme temperatures.
- Water Resistance: The radio is designed to be water-resistant, but it is not fully submersible. Avoid exposing it to heavy rain or immersion in water.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery not installed correctly or discharged. | Ensure battery is securely attached. Charge the battery fully. |
| Cannot transmit or receive | Incorrect channel selection; out of range; low battery. | Verify all radios are on the same channel. Move closer to other radios. Charge battery. |
| Poor audio quality / Static | Weak signal; interference; volume too low/high. | Move to an open area. Adjust volume. Check for obstructions. |
| Cannot communicate with other radios (even on same channel) | Different CTCSS/DCS codes set. | Ensure all radios have the same CTCSS/DCS code, or disable them for testing. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Retevis |
| Model Number | EUA9123CX2 |
| Color | Black |
| Number of Channels | 16 |
| Frequency Range | 446.00625-446.19375 MHz (PMR446) |
| Max Range | 3 Kilometers (environment dependent) |
| Voltage | 3.7 Volts |
| Battery Type | Lithium-ion (1100 mAh) |
| Battery Life (Standby) | Approx. 74 hours |
| Battery Life (Normal Use) | Approx. 8-12 hours |
| Water Resistance Level | Water-resistant |
| Product Dimensions | 6.5D x 28.8W x 20.8H centimeters (approximate, likely package dimensions) |
| Special Features | Easy to use, Long range, Rechargeable |
Image 8.1: Certification details and battery specifications for the Retevis RT24, confirming its PMR446 frequency and 1100mAh battery capacity.
9. Warranty and Support
Retevis offers a comprehensive warranty and support policy for the RT24 Two-Way Radio:
- Warranty Period: 2 years for the radio body and 1 year for accessories.
- Return Policy: 30 days for returns without specific reason.
- Post-Warranty Service: Maintenance services are available beyond the warranty period; buyers are responsible for associated costs.
- Contact Support: For any inquiries or support needs, please contact Retevis via Amazon. Responses are typically provided within 12 hours.
