DJI O4 Air Unit Pro Antenna

The DJI O4 Air Unit Pro Antenna is a replacement antenna for drones fitted with the DJI O4 Air Unit Pro. It handles the video-transmission side of that air unit and is not a general drone accessory. The antenna helps maintain the wireless link between the aircraft and compatible DJI FPV equipment. Its key feature is direct fitment to the stated air-unit platform, which removes the need to pick a generic antenna by appearance alone. No compatibility with other DJI air units is mentioned in the supplied product data.

This part is aimed at owners and maintainers who need to replace the antenna element of an existing O4-based FPV setup. It is supplied as the antenna component only, not as a complete video-transmission assembly. Installation details, connector type, and frequency band are not specified, so exact model matching remains the main fitment criterion. The product information also lists no additional accessories for mounting, routing, or storage. As a result, it is best understood as a focused maintenance component for the named air-unit platform.

• 2.1 g weight: adds little mass to the FPV aircraft
• 110 mm length: gives a clear measurement for checking routing space
• One antenna per pack: supplied as a single replacement component
• Damaged or worn antenna replacement: intended for maintaining an existing setup
• Missing antenna replacement: restores the required antenna component