1. Introduction
The GEPRC MATEN 1.2G 2W VTX is a high-power video transmitter designed for FPV (First Person View) drone applications. It features adjustable signal power, advanced heat dissipation, and wide voltage support, making it suitable for various flight scenarios. This manual provides essential information for the proper installation, operation, and maintenance of your MATEN 1.2G 2W VTX.
2. Product Features
- Adjustable Power Modes: Offers four customizable power modes to optimize signal stability, range, and penetration for different environments.
- Advanced Heat Dissipation: Equipped with a CNC-machined aluminum alloy housing for effective temperature regulation during operation, ensuring durability and consistent performance.
- Universal Compatibility: Supports a wide input voltage range of 7-36V and features standard 30.5×30.5mm (M3) mounting holes for seamless integration into most drone builds. Includes overheat protection.
- Smart Control: Utilizes the IRC Tramp protocol for real-time adjustments via OSD (On-Screen Display) interfaces, allowing for quick parameter tuning without interrupting flight.
- Robust Construction: Designed with a reinforced structure to withstand vibrations and impacts. UFL antenna connectors ensure reliable signal transmission in challenging conditions.
3. Package Contents
Verify that all items are present in your package:
Image: Contents of the GEPRC MATEN 1.2G 2W VTX package.
- GEPRC MATEN 1.2G 2W VTX Unit
- 1.2G Antenna
- SH1.25 6P Connecting Cable
- MMCX to SMA Connector
- M3*7 Screws
- M3*8 Screws
- M3*10 Hexagon Standoffs
- M3*5 Isolation Columns
- M3 Nylon Nuts
- Product Description (Manual)
4. Setup and Installation
4.1 Wiring Diagram
Refer to the diagram below for correct wiring connections. Ensure proper polarity to prevent damage to the VTX or other components.
Image: Bottom view of the VTX with pinout labels for power, ground, and control signals.
- GND: Ground connection.
- 5VOUT: 5V output for powering a camera or other low-power devices (max 600mA).
- IRC: IRC Tramp protocol signal line for OSD control.
- VTX: Video input from your FPV camera.
- 7-36V: Main power input (DC 7-36V, compatible with 2-8S LiPo batteries).
4.2 Mounting
The VTX supports 30.5x30.5mm (M3) mounting holes. Use the provided screws, isolation columns, and nuts to securely mount the VTX to your drone frame, ensuring no short circuits.
Image: Mounting hole dimensions for the VTX.
4.3 Antenna Connection
Connect the 1.2G antenna to the MMCX connector on the VTX. Ensure the connection is firm. CAUTION: Always install the antenna before powering on the VTX to prevent damage.
Image: Close-up of the VTX showing the MMCX antenna port.
5. Operating Instructions
5.1 Powering On/Off
Connect the VTX to a compatible power source (7-36V). The VTX will power on automatically. Disconnect the power source to turn off the VTX.
5.2 Channel and Power Adjustment (IRC Tramp)
The MATEN 1.2G 2W VTX supports the IRC Tramp protocol, allowing you to adjust channels and output power directly through your flight controller's OSD. Consult your flight controller's manual for specific instructions on configuring VTX control via IRC Tramp.
The VTX has a button for manual channel and power selection if OSD control is not used or configured. Press the 'CHAN' button to cycle through channels and the 'PWR' button to cycle through power levels.
Image: Top view of the VTX indicating channel frequencies and control buttons.
Available Channel Frequencies (MHz):
- CH1: 1080
- CH2: 1120
- CH3: 1160
- CH4: 1200
- CH5: 1240
- CH6: 1280
- CH7: 1320
- CH8: 1360
- CH9: 1220
Available Output Power Levels:
- 25mW
- 400mW
- 800mW
- 2000mW (2W)
- Pit mode (low power for setup)
6. Maintenance
- Regular Inspection: Periodically check all wiring connections for signs of wear, fraying, or loose contacts.
- Cleaning: Keep the VTX free from dust, dirt, and moisture. Use a soft, dry cloth for cleaning. Avoid using solvents or harsh chemicals.
- Antenna Care: Ensure the antenna is not bent or damaged. A damaged antenna can significantly reduce signal range and quality.
- Thermal Management: Ensure adequate airflow around the VTX, especially during high-power operation, to facilitate heat dissipation. Avoid covering the VTX with materials that impede cooling.
7. Troubleshooting
- No Video Signal:
- Check if the antenna is securely connected.
- Verify power supply to the VTX.
- Ensure the camera is properly connected to the VTX's video input.
- Confirm your FPV receiver is on the correct channel and frequency.
- Poor Video Quality/Short Range:
- Check for antenna damage or improper type.
- Increase the VTX output power if operating in a challenging environment.
- Ensure there are no obstructions between the VTX and receiver.
- Check for interference from other electronic components on the drone.
- VTX Overheating:
- Ensure the VTX has sufficient airflow.
- Reduce the output power if high power is not strictly necessary.
- Verify the input voltage is within the specified range (7-36V).
- OSD Control Not Working:
- Check the IRC Tramp wiring connection to the flight controller.
- Verify the flight controller firmware is configured correctly for VTX control.
8. Specifications
Image: Detailed specifications of the VTX.
| Parameter | Value |
|---|---|
| Model Name | MATEN 1.2G 2W VTX |
| Dimensions | 36.4 x 36.4 x 7.4 mm |
| Mounting Hole | 30.5 x 30.5 mm (M3) |
| Frequency Band | 1080MHz - 1360MHz |
| Input Voltage | DC 7-36V (2-8S Battery) |
| Channels | 9 |
| Output Voltage | 5V@600mA |
| Protocol | IRC Tramp |
| Antenna Interface | MMCX |
| Cable Interface | SH1.25 6pin |
| Weight | 14.5g (VTX only) |
| Channel Frequencies (MHz) | 1080, 1120, 1160, 1200, 1240, 1280, 1320, 1360, 1220 |
| Output Power | 25mW, 400mW, 800mW, 2000mW (2W), Pit mode |
Image: Physical dimensions of the VTX.
9. Safety Information
- Antenna First: Always connect the antenna before powering on the VTX. Operating without an antenna can permanently damage the unit.
- Voltage Range: Ensure the input voltage is within the specified range of 7-36V. Incorrect voltage can damage the VTX.
- Heat: The VTX can become hot during operation, especially at higher power levels. Avoid direct contact and ensure proper ventilation.
- Legal Compliance: Be aware of and comply with local regulations regarding FPV video transmission frequencies and power levels.
- Professional Installation: If you are unsure about any installation steps, seek assistance from an experienced FPV hobbyist or professional.
10. Warranty and Support
For warranty information and technical support, please refer to the official GEPRC website or contact your retailer. Keep your proof of purchase for any warranty claims.
GEPRC is committed to providing high-quality products and support. If you encounter any issues not covered in this manual, please reach out to their customer service team.
