1. Introduction
This manual provides detailed instructions for the RUSHFPV RUSH MAX SOLO 2.5W and RUSH TANK SOLO 1.6W 5.8GHz Video Transmitters (VTX). These high-performance VTX units are designed for FPV (First Person View) long-range racing drones, offering robust video transmission capabilities. Please read this manual thoroughly before installation and operation to ensure proper use and safety.
Figure 1: RUSHFPV Tank Solo 1.6W (top) and Max Solo 2.5W (bottom) VTX units.
2. Warnings and Safety Instructions
- Always read this user manual completely before operating the VTX.
- Users should possess relevant professional knowledge for mounting and operating FPV equipment. Illegal use may cause potential danger. Operate under the guidance of a professional if unsure.
- The VTX generates significant heat during operation. Ensure adequate airflow and a well-ventilated environment to prevent burns and ensure optimal performance.
- Always install the antenna correctly to the VTX RF output before powering up the device. Operating without an antenna can cause permanent damage to the VTX.
- Ensure all cables and plugs are installed correctly and securely.
- Do not disassemble, repair, or modify this product personally due to its precision components. Consult your dealer for technical support in case of VTX breakdown.
- Adhere to all local radio regulations. A HAM license may be required for operating on HAM channels or specific power levels. Notify local radio regulatory agencies as required.
- It is strictly forbidden to fly in no-fly zones such as airports, military facilities, and over crowds.
- The 5V output is exclusively for a camera or cooling fan. Do not connect power input/battery to the 5V output, as this will cause serious damage to the VTX.
Figure 2: Tank Solo VTX with warning labels and connection details.
3. Features
- Developed for extreme long-range FPV pilots.
- Efficient Cooling: Compact and efficient active cooling design (MAX SOLO) or unique heat dissipation structure (TANK SOLO) to unleash full VTX performance.
- LOCK-ON Technology: Ensures jitter-free transmit channels and no sweep interference, ideal for multi-pilot flights.
- Factory power consistency calibration for all channels.
- Low noise DC-DC power supply design for clean video screens.
- Built-in Microphone: (TANK SOLO model only) for audio transmission.
- Durable Construction: Two-color CNC shell (TANK SOLO model).
- Integrated Indicators: Button indicator lights are combined into one for simplified feedback (TANK SOLO model).
4. Specifications
| Parameter | RUSH MAX SOLO 2.5W | RUSH TANK SOLO 1.6W |
|---|---|---|
| Channel | 48CH / 37CH (US) | 48CH |
| Power Level | PIT-25mW-500mW-1000mW-MAX* | PIT-25mW-400mW-800mW-1W-1.6W* |
| Input Voltage | DC 7-36V (6S LIPO) | DC 7-36V (6S LIPO) |
| Output Voltage | DC 5V (Max 500mA) | DC 5V (Max 600mA) |
| Video Input | CVBS PAL / NTSC | CVBS PAL / NTSC |
| Audio Input | 6.5M MONO | 6.5M MONO WITH AGC MIC |
| Antenna Connector | MMCX 50Ω | MMCX 50Ω |
| External Control | Smart Audio V2.1 | Smart Audio V2.1 (TBS authorized commercial) |
| Dimensions (H*W*D) | 40mm * 24mm * 10.5mm | 37mm * 24mm * 6.7mm |
| Weight (without cable) | 15g | 12g |
*MAX Power level can provide 1W (30dbm) or more power depending on the environment's ability to dissipate heat.
5. Setup
5.1 Package Contents
Ensure all components are present in your package:
- RUSH MAX SOLO / TANK SOLO Image Transmission Unit x1
- Power Cable x2
- MMCX to SMA Adapter Cable x1
- Antenna x1
Figure 3: Typical package contents for RUSHFPV Max Solo VTX.
5.2 Wiring Diagram
Refer to the following diagrams for proper wiring connections. Always ensure the antenna is connected before powering on the VTX.
Figure 4: Wiring Diagram for RUSHFPV Tank Solo VTX.
SH1.0-6P Connector Pinout (Tank Solo):
- DC-IN: Power input from battery (7-36V)
- GND: Ground connection
- DATA: SmartAudio data line to Flight Controller (FC) UART-TX
- 5VOUT: 5V output for Camera/Cooling Fan (Max 500mA for Max Solo, Max 600mA for Tank Solo)
- GND: Ground connection
- VIDEO: Video input from Camera
5.3 SmartAudio Setup (BetaFlight)
The RUSH VTX units feature SmartAudio for convenient configuration via your Flight Controller (FC) and OSD (On-Screen Display) or radio control.
- Connect the SmartAudio DATA line from the VTX to a free UART-TX pad on your Flight Controller.
- Open the BetaFlight configurator on your computer.
- Navigate to the 'Ports' tab.
- Under the 'Peripherals' column for the UART you connected the VTX to, select 'TBS SmartAudio'. The baud rate can typically be left at '<auto>'.
- Click 'Save and Reboot'.
Figure 5: SmartAudio setup instructions from the Max Solo User Manual.
6. Operating Instructions
6.1 Power and Frequency Display
The VTX features a single button for controlling power levels and frequency bands. The chosen channel and band are indicated by a sequence of LED flashes.
Frequency Table:
| CH | BAND A | BAND B | BAND E | BAND F | RACEBAND | LOWRACE |
|---|---|---|---|---|---|---|
| 1 | 5865 | 5733 | 5705 | 5740 | 5658 | 5362 |
| 2 | 5845 | 5752 | 5685 | 5760 | 5695 | 5399 |
| 3 | 5825 | 5771 | 5665 | 5780 | 5732 | 5436 |
| 4 | 5805 | 5790 | 5645 | 5800 | 5769 | 5473 |
| 5 | 5785 | 5809 | 5885 | 5820 | 5806 | 5510 |
| 6 | 5765 | 5828 | 5905 | 5840 | 5843 | 5547 |
| 7 | 5745 | 5847 | 5925 | 5860 | 5880 | 5584 |
| 8 | 5725 | 5866 | 5945 | 5880 | 5917 | 5621 |
The chosen channel and band will be displayed in sequence. The number of flashes in red indicates the channel, and blue indicates the band.
Power Level Indicators:
- Green LED: 25mW
- Blue LED: 500mW (Max Solo), 400mW (Tank Solo)
- Red LED: 1000mW (Max Solo), 800mW (Tank Solo)
- Purple LED: MAX (Max Solo), 1W (Tank Solo)
- Flashing Power LED: PIT Mode (low power for setup)
To Exit PIT Mode: Press and HOLD the Power Button to select the desired Power Level.
Overheat Protection: If the VTX overheats, the Power LED will flash rapidly, and the VTX will slowly reduce transmit power. Once the VTX cools down, it will resume transmitting power, and the Power LED will stop flashing.
6.2 SmartAudio Control
After connecting the VTX to your Flight Controller (FC) or CRSF (Crossfire) system, VTX parameters can be quickly adjusted via your OSD or radio control.
- Access the OSD menu (usually by stick commands on your radio).
- Navigate to the VTX SA menu.
- From this menu, you can set the VTX working state (e.g., channel, band, power level).
- In the CONFIG menu, if set to 'RACE' mode, the VTX will automatically enter PIT mode after booting. To transmit normally after booting, set it to 'FREE' mode.
- After switching the working mode, you may need to cycle power to the VTX for the settings to take effect.
7. Maintenance
- Regularly inspect all wiring connections for wear or damage.
- Ensure the VTX is kept clean and free from dust and debris, especially around cooling fins or fans.
- Always ensure adequate airflow around the VTX during operation to prevent overheating, which can degrade performance and shorten lifespan.
- Avoid exposing the VTX to excessive moisture or extreme temperatures.
Figure 6: Airflow diagram for optimal cooling of the Tank Solo VTX.
8. Troubleshooting
- No Video Signal: Check all wiring connections (power, ground, video in). Ensure the antenna is securely attached. Verify that the VTX is powered on and transmitting on the correct channel/band and that your receiver is tuned to match.
- Poor Video Quality/Interference: Check for loose antenna connections. Ensure the VTX has sufficient cooling. Try changing channels or power levels. Check for external sources of interference.
- VTX Overheating: Ensure the VTX is mounted in a location with good airflow. Consider adding a dedicated cooling fan if operating at high power levels in confined spaces. Reduce power output if necessary.
- SmartAudio Not Working: Verify the SmartAudio data line is correctly connected to a UART-TX pad on your FC. Double-check BetaFlight 'Ports' tab settings to ensure SmartAudio is enabled for the correct UART. Ensure the VTX is powered on.
- VTX Not Transmitting After Boot (PIT Mode): If your VTX is stuck in PIT mode after booting, check your SmartAudio settings in BetaFlight. Ensure the VTX is set to 'FREE' mode if you want it to transmit normally upon power-up.
9. User Tips
- Always perform a range check with your FPV system before flying, especially after making changes to your VTX setup.
- For optimal video clarity, ensure your VTX antenna is positioned away from other electronic components and carbon fiber frames.
- When flying with multiple pilots, coordinate your VTX channels and power levels to avoid interference. LOCK-ON technology helps, but good practice is still essential.
- Consider using a low-ESR capacitor on your main battery lead to help filter noise and provide cleaner power to your VTX, improving video quality.
10. Warranty and Support
For warranty claims, technical support, or service inquiries, please contact your original retailer or the manufacturer directly. Keep your proof of purchase for any warranty-related requests.