1. Introduction
This manual provides essential information for the safe and effective operation of your ATA HOBBY Radiolink Wolf QAV250 FPV Racing Drone. Please read this manual thoroughly before operating the drone to ensure proper setup, flight, and maintenance. Retain this manual for future reference.
The Radiolink Wolf QAV250 is a high-performance FPV racing drone designed for speed and aerial videography, featuring advanced flight modes, GPS capabilities, and versatile video transmission options.

Image 1.1: Radiolink Wolf QAV250 FPV Racing Drone with key features.
2. Safety Guidelines
Operating an FPV racing drone requires adherence to strict safety protocols. Failure to follow these guidelines can result in injury, property damage, or legal penalties.
- Local Regulations: Always comply with local aviation laws and regulations. Check for no-fly zones and altitude restrictions.
- Pre-Flight Check: Before each flight, inspect the drone, propellers, battery, and transmitter for any damage or loose connections.
- Environmental Conditions: Do not fly in strong winds, rain, snow, or fog. Maintain visual line of sight with the drone at all times, even when using FPV goggles.
- Battery Safety: Use only approved batteries and chargers. Do not overcharge or puncture batteries. Store batteries in a fire-safe bag.
- Propeller Safety: Keep hands and face clear of propellers when the drone is powered on. Propellers can cause serious injury.
- Respect Privacy: Do not fly over private property or record individuals without their consent.
- Interference: Avoid flying near high-voltage lines, radio towers, or areas with strong signal interference.
3. Package Contents
Verify that all items listed below are included in your package. If any items are missing or damaged, contact your retailer.
- 1x QAV250 Drone
- 1x Radiolink AT9S Pro RC Transmitter
- 1x LST 3-inch FPV Goggles
- 1x 6S 1300mAh Battery
- 1x Balance Charger (HOTA T6 15A)
- 4x Propellers (Gemfan 51466)
- 2x Battery Straps (FlyingFish)
- 1x Screwdriver Socket Wrench
- 2x Hex Wrenches (1.5mm & 2.0mm)
- 1x XT60 to DC 5.5*2.1 mm Power Cord
- 1x Carrying Bag

Image 3.1: Complete package contents of the Radiolink Wolf QAV250 FPV Racing Drone kit.
4. Product Overview
The Radiolink Wolf QAV250 is engineered for high-speed FPV racing and dynamic aerial videography. It integrates a robust frame with high-performance components.
4.1. Key Components
- Flight Controller: CrossRace Pro (supports APM/ArduPilot and Betaflight)
- Motors: SZ-SPEED 2207-1900KV Brushless Motors
- ESCs: FLYCOLOR 55A 4in1 ESC
- Propellers: Gemfan 5" (51466)
- Battery: Gensace 6S 1300mAh 95C XT60 Battery
- GPS Module: Built-in GPS TS100 with de-interference and anti-interference technology.
- Video Transmission: Supports HD Digital (DJI O3, CADDX Walksnail Avatar HD PRO KIT) and Analog Video Transmission.

Image 4.1: Exploded view of the drone's main components.

Image 4.2: GPS TS100 module for 50cm positioning accuracy.
5. Setup
5.1. Battery Charging and Installation
- Connect the provided 6S 1300mAh battery to the balance charger (HOTA T6 15A).
- Follow the charger's instructions to safely charge the battery. Ensure proper ventilation during charging.
- Once charged, secure the battery to the top plate of the QAV250 drone using the provided battery straps. Ensure the battery is firmly attached and balanced.
- Connect the XT60 battery connector to the drone's power input.
5.2. Propeller Installation
- Identify the correct rotation direction for each propeller (CW for clockwise, CCW for counter-clockwise).
- Match the propellers to the corresponding motor shafts. The drone typically has two CW and two CCW motors.
- Securely fasten each propeller using the provided nuts and the screwdriver socket wrench. Do not overtighten.
5.3. Transmitter and Goggles Setup
- Install batteries into the Radiolink AT9S Pro RC Transmitter.
- Power on the transmitter and ensure it is bound to the drone. Refer to the transmitter's specific manual for binding procedures if necessary.
- Power on the LST 3-inch FPV Goggles. Ensure they are receiving video feed from the drone. Adjust channels as needed.
6. Operating Instructions
6.1. Pre-Flight Checks
- Ensure all components are securely attached.
- Check battery levels on both drone and transmitter.
- Verify propeller integrity and correct installation.
- Confirm clear FPV video feed in goggles.
- Perform a quick control surface check (throttle, yaw, pitch, roll) with propellers off or drone secured.
6.2. Flight Modes
The QAV250 supports various flight modes for different piloting experiences:
- PosHold Flight Mode: Combines autonomous flight controller (APM/ArduPilot) precision with manual control. Allows speeds up to 180 km/h and immediate braking.
- Altitude Hold Mode: Maintains a stable altitude, allowing for easier control during high-speed aerial videography.
- Customized Waypoint Flight: Set specific waypoints, flight speed, and altitude for automated multi-route aerial photography missions.

Image 6.1: High-speed flight in PosHold mode.

Image 6.2: High-speed aerial videography with Altitude Hold Mode.

Image 6.3: Customized Waypoint Flight path.
6.3. Return to Home (RTH) Function
The QAV250 features a reliable Return to Home function, activated automatically under specific conditions or manually by the pilot.
- Automatic RTH: The drone will automatically return to its take-off point if the power battery voltage drops below a set threshold or if the signal is lost.
- The built-in GPS TS100 module ensures accurate positioning and reliable RTH, even in environments with potential signal interference.

Image 6.4: Drone returning home automatically.
6.4. Video Transmission
The drone supports both high-definition digital and analog video transmission, offering flexibility for various FPV setups.
- HD Digital Transmission: Built-in CrossRace Pro with OSD module supports plug-and-play compatibility with DJI O3 and CADDX Walksnail Avatar HD PRO KIT.
- Analog Transmission: Compatible with standard analog FPV systems.

Image 6.5: HD Digital and Analog Video Transmission support.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your QAV250 drone.
- Cleaning: After each flight, gently clean the drone body, motors, and camera lens with a soft, dry cloth. Avoid using liquids directly on electronic components.
- Propeller Inspection: Regularly check propellers for cracks, bends, or nicks. Replace damaged propellers immediately as they can affect flight stability and safety.
- Motor Inspection: Ensure motors spin freely and are free of debris. Check for any unusual noises during operation.
- Battery Care: Store batteries at a safe storage voltage (typically around 3.8V per cell) when not in use for extended periods. Do not leave batteries fully charged or fully discharged.
- Firmware Updates: Periodically check the ATA HOBBY or Radiolink website for firmware updates for the flight controller and transmitter.
8. Troubleshooting
This section addresses common issues you might encounter with your QAV250 drone.
| Problem | Possible Cause | Solution |
|---|---|---|
| Drone does not power on | Battery not connected, discharged battery, faulty power cable. | Ensure battery is fully charged and correctly connected. Check power cable for damage. |
| No FPV video feed | Goggles not powered, incorrect channel, video transmitter issue. | Check goggles power. Ensure goggles and drone are on the same video channel. Inspect video transmitter connections. |
| Drone drifts during flight | Uncalibrated sensors, unbalanced propellers, strong wind. | Perform IMU/accelerometer calibration. Check and replace damaged propellers. Avoid flying in strong winds. |
| Loss of signal | Out of range, interference, antenna issue. | Fly within recommended range. Avoid areas with known interference. Check transmitter and drone antenna connections. |
| Return to Home fails | Insufficient GPS lock, RTH settings incorrect. | Ensure drone has a strong GPS lock before takeoff. Verify RTH settings in the flight controller software. |
9. Specifications
Detailed technical specifications for the Radiolink Wolf QAV250 FPV Racing Drone.
| Feature | Specification |
|---|---|
| Brand | ATA HOBBY |
| Model Name | QAV250 |
| Max Speed (PosHold) | 180 km/h |
| Positional Accuracy | 50 cm (with GPS TS100) |
| Flight Controller | CrossRace Pro (APM/ArduPilot, Betaflight support) |
| Motors | SZ-SPEED 2207-1900KV Brushless |
| ESCs | FLYCOLOR 55A 4in1 |
| Propellers | Gemfan 5" (51466) |
| Battery | Gensace 6S 1300mAh 95C XT60 |
| Video Transmission | HD Digital (DJI O3, CADDX Walksnail Avatar HD PRO KIT) & Analog |
| GPS Module | TS100 (de-interference, anti-interference) |
| Skill Level | Beginner |
| Item Weight | 1.36 pounds (approx. 617g) |
| Product Dimensions | 8.7"L x 8"W x 1.6"H (approx. 22.1cm L x 20.3cm W x 4.1cm H) |
| Material | Plastic |
| Connectivity Technology | USB |
| Video Capture Resolution | 1080p |
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact ATA HOBBY customer service or refer to the official product page on Amazon. Protection plans are available for purchase separately to extend coverage for your device.
Manufacturer: Eighteenup
Date First Available: February 7, 2025





