XM2 HD FPV systems have been updated to support the new DJI O4 Air Unit, replacing the previous O3 platform. This update delivers improved signal stability, lower latency and long-term platform support - paired with a redesigned enclosure engineered specifically for O4 hardware.

What’s new:

• Native support for DJI O4 Air Unit
• Updated enclosure for improved fit and cooling
• Optimised for next-generation DJI FPV transmission
• Same XM2 mission-critical build standard

Who this system is for

• Professional ALTA X operators
• Cinematography, inspection, and industrial drone workflows
• Operators requiring HD FPV + telemetry awareness
• Teams running DJI O4 or Walksnail digital systems
• Operators upgrading to DJI O4 HD FPV workflows

Who this is not for

• Hobby or consumer drones
• Plug-and-play FPV beginners
• Non-ALTA X platforms

ALTA X HD FPV System Overview

The HD FPV System for ALTA X is made up of four components:

• Alta X HD FPV Camera Bay
• Alta X Brain Bay
• HD FPV Video Transmitter & Camera (MSP display port digital video systems with Canvas Mode)
• Freefly Systems ALTA X

Key Benefits

• Purpose-built integration for Freefly ALTA X
• Real-time HD FPV with integrated flight telemetry
• Designed for operational safety and pilot awareness
• Stable, thermally managed performance for professional use
• Internal, serviceable, and future-ready design
• Developed and supported by XM2 Labs in Australia

Enhance your piloting with the ALTA X HD FPV System.

This upgrade transmits real-time status messages from the ALTA X flight controller through high-definition video to your HD FPV goggles or field monitor. The ever-improving HD FPV signal provides low-latency, sharp, and stable video, removing the graininess often seen in analog systems.

The ALTA X HD FPV system wirelessly transmits critical flight telemetry, including battery voltage, heading, and ground speed, via Status Messages to a compatible 2.4 GHz or 5.8 GHz receiver or monitor. Compatible with the DJI O3 Air Unit, Walksnail Avatar HD Pro V2, and other digital video systems with Canvas Mode and an MSP display port.

Additional PWM Outputs: Alta X Retractable Landing Gear Upgrade

The system includes three user-configurable PWM outputs integrated into the Brain Bay, offering versatile control options. We recommend connecting XM2's Retractable Landing Gear for the ALTA X to one of these PWM outputs. This setup enhances safety by allowing the Brain Bay to manage the landing gear’s functionality. Specifically, it prevents the Alta X landing gear from retracting while the drone is on the ground and enables the legs automatically lower during auto landings.

ALTA X HD FPV Camera Bay

The ALTA X HD FPV Camera Bay securely manages your HD FPV video transmitter and camera, enabling stable camera footage and active cooling for the device. You can adjust and lock the camera angle before takeoff. The design allows for easy installation of your camera and transmitter, and it fits directly into Bay 1 at the front of the ALTA X aircraft. It’s also been designed to be compatible with future digital VTX FPV camera systems.

ALTA X Brain Bay

The ALTA X Brain Bay serves as the core component of the HD FPV ecosystem, housing our MAVTx operating system developed by XM2 Labs. MAVTx facilitates seamless communication among the ALTA X flight controller, the Brain Bay, and the HD FPV Camera bay, granting users full access and control of the Digital OSD. Additionally, the Brain Bay features three user-configurable PWM outputs, seamlessly integrated for enhanced payload control options.

HD FPV Video Transmitter & Camera

Wirelessly transmit and receive high-definition video and essential flight telemetry: such as battery voltage, heading, and ground speed between the Alta X and compatible 2.4 GHz - 5.8 GHz transmitter / receiver. 

Note: Power is required and not supplied.

VTX Compatibility (tested)

• DJI O4+ Video Transmission Module

• Walksnail Avatar HD VTX V2 Module

• Walksnail Avatar HD VTX V2 Module (Dual Antenna Version)

FPV Camera Compatibility (tested)

• DJI O4 Air Unit Camera Module

• Walksnail Avatar HD Pro Camera

• Walksnail Avatar HD V2 Camera

Receiver Compatibility (tested)

• Walksnail Avatar FPV VRX (HDMI Receiver Unit)

• DJI Goggles 3

• DJI Goggles 2

• DJI Goggles Integra

• Apple Ipad (via compatible DJI FPV Goggles)

ALTA X HD FPV System Power Compatibility (tested)

• 12V DC to DC Regulator for Alta (recommended)
• Alternatively, connect the Brain Bay Power Input Cable (XT60 or XT30) to a 7.4V - 25.2V power source. Plug the JST-PH 2-pin connector into the Brain Bay power input.

Warning: The Brain Bay must be powered by a 2S-6S power source (7.4V - 25.2V). Connecting the Brain Bay to ALTA X flight packs will cause permanent damage to both the Brain Bay and HD VTX.

Available in Two Versions

1. BYO (Build Your Own): Users provide and install their own Digital HD FPV Camera kit. This option offers flexibility for users who prefer to customize their setup. Includes install kits for Caddx Walksnail Avatar HD Pro (Dual Antennas) and DJI 04 Air Unit.
   Best for experienced installers who already own a compatible digital VTX.

2. XM2-Installed Version: XM2 provides and installs the camera system. This version includes professional installation and ensures optimal performance. Includes install additional kits for Caddx Walksnail Avatar HD Pro V2 (Dual Antennas) and DJI 04 Air Unit.

Features 

Brain Bay