1. Introduction
The Retevis RA87 is a high-power GMRS mobile radio designed for reliable two-way communication. This manual provides detailed instructions for the setup, operation, and maintenance of your RA87 mobile transceiver. It is suitable for various applications including off-roading, overlanding, farming, RV travel, and general outdoor use.
Figure 1: Retevis RA87 GMRS Mobile Radio with Handheld Microphone.
The RA87 features 8 base station channels that can connect to nearby relay stations to extend communication range. Its robust design and user-friendly interface make it an effective communication tool.
Figure 2: The Retevis RA87 Mobile Radio provides long communication distances, ideal for off-road environments.
2. Setup and Installation
2.1 Package Contents
Before beginning installation, verify that all components are present:
- 1 x RA87 Mobile Radio
- 1 x DTMF Microphone
- 1 x Mobile Mounting Bracket
- 1 x DC Power Cable with Fuse Holder
Figure 3: Included components in the RA87 package.
2.2 Mounting the Radio
The compact design of the RA87 allows for flexible installation in various vehicles such as ATVs, UTVs, RVs, tractors, and off-road vehicles. Use the provided mobile mounting bracket to secure the radio in a suitable location, ensuring proper ventilation and access to controls.
Figure 4: Example of RA87 installation in a vehicle.
2.3 Power Connection
Connect the DC Power Cable with Fuse Holder to a 13.8V DC power source. Ensure a secure connection to prevent intermittent power issues. The radio is designed for 13.8 Volts (DC) operation.
3. Operating Instructions
3.1 Basic Operation and Display
The RA87 features a large LCD display with 8-kind adjustable backlight colors, ensuring clear visibility day or night. The integrated microphone includes digital buttons for quick frequency setting and function adjustments, reducing the need to interact directly with the radio's base unit.
Figure 5: Clear LCD display for easy readability.
Figure 6: Integrated microphone for convenient function settings.
3.2 VFO Mode and Channel Programming
The radio supports VFO (Variable Frequency Oscillator) mode, allowing direct frequency input. Channels can be programmed via the keypad on the microphone or through CHIRP software, compatible with Windows XP/7/8/10/11 systems.
3.3 Dual Watch and Dual Standby
The RA87 offers dual display and dual standby capabilities, enabling simultaneous monitoring of two channels. This feature helps avoid missing important communications by watching two channels at once, including setting an emergency channel.
3.4 Audio Quality
The radio is designed to provide crystal clear sound by reducing hissing and enhancing audio quality, ensuring smooth vehicle communication even over long distances.
Video 1: Overview of the Retevis RA87 GMRS Mobile Radio's features and applications.
4. Advanced Features
4.1 Repeater Functionality
Two RA87 GMRS mobile radios can be connected to form a simple relay, significantly extending the communication range. This feature is particularly useful for covering larger areas or overcoming terrain obstacles.
Video 2: Detailed instructions on how to connect two RA87 units to create a repeater.
4.2 CHIRP Programming
The RA87 supports CHIRP software for advanced programming, allowing users to customize channels, frequencies, and other settings from a computer. This provides greater flexibility for experienced users.
Video 3: Demonstration of the RA87 GMRS mobile radio's power output during testing.
5. Maintenance
5.1 Durability and Heat Dissipation
The RA87 is constructed with an aluminum substrate inside, which contributes to its durability and provides efficient heat dissipation. This design ensures safer and more reliable operation, especially during extended use.
Figure 7: Aluminum substrate for enhanced heat dissipation.
5.2 General Care
Keep the radio clean and free from dust and debris. Avoid exposing the unit to extreme temperatures or direct sunlight for prolonged periods. While water-resistant, avoid submerging the radio.
6. Troubleshooting
6.1 Power Issues
If the radio does not power on or experiences intermittent power, check all power cable connections, including the fuse holder. Ensure the power source provides stable 13.8V DC.
6.2 Programming Difficulties
For issues with programming channels or settings, refer to the detailed programming guide in the full user manual or consult online resources for CHIRP software. Ensure the correct software version and cable are used for programming.
6.3 Communication Range
If experiencing shorter than expected communication range, verify antenna connection and placement. Ensure the antenna is suitable for GMRS frequencies and is installed correctly. Consider using a repeater for extended range.
Video 4: Demonstration of the RA87 used with an MR300 antenna and a handheld RA85 for extended communication.
Video 5: An off-road communication kit featuring the RA87 with an MR200 antenna.
7. Specifications
| Item Weight | 2.65 pounds (1200 Grams) |
| Product Dimensions | 1.61 x 5.55 x 6.81 inches |
| Model Number | RA87 |
| Brand | Retevis |
| Color | Black |
| Number of Channels | 30 |
| Special Feature | Emergency Alarm, Keypad Lock |
| Frequency Range | GMRS |
| Talking Range Maximum | 10 Mile (typical, varies by terrain) |
| Voltage | 13.8 Volts (DC) |
| Water Resistance Level | Water Resistant |
Figure 8: Rear view of the RA87 with specifications label.
8. Warranty and Support
8.1 Warranty Information
Retevis provides a 2-year warranty for the radio body and a 1-year warranty for accessories. A 30-day return policy is also available. For service beyond the warranty period, maintenance is offered, with corresponding costs to be covered by the buyer.
8.2 Customer Support
For any inquiries or support needs, please contact Retevis customer service through Amazon. Responses are typically provided within 12 hours.
