This tutorial provides a comprehensive guide to configuring Pix4Dcatch Professional to integrate seamlessly with the Emlid Reach RX rover. By pairing these tools, users can acquire centimeter-level GNSS precision for mobile 3D scans, leveraging the built-in LiDAR sensors on Apple hardware.

The specialized Emlid Scanning Kit utilizes an industry-standard SPC+ structural mounting interface and maintains complete compatibility across LiDAR-enabled iPhones (iPhone 12 Pro through iPhone 16 Pro and Pro Max configurations). Note that an active Professional tier subscription is required within Pix4Dcatch to access RTK device connectivity options.

Configuring Corrections

Before launching the software environment, ensure your Emlid Reach RX receiver is entirely up to date with the latest official stable firmware revisions. Once verified, execute the following steps:

• Launch the **Pix4Dcatch** application on your device.
• Tap the explicit dropdown arrow found within the persistent **GPS status window**.
• Select **RTK via Bluetooth** from the context menu and pair your active RX receiver.
• Set your hardware Camera Offset profile directly to **SPC+**.
• Input your primary local NTRIP network service provider credentials (or your custom Emlid Caster stream profiles if tying directly into a local physical base station).

Once your specific credentials, active hardware mount point parameters, and localized target coordinate reference systems are locked in, your high-precision **RTK Fixed solution** will automatically populate.

Capturing Data & Live Preview

Initiate active site recordings by engaging the red hardware **Capture** button. As you systematically scan targeted physical objects or structures, an augmented reality (AR) structural mesh overlays across your screen in real time to show localized mapping completion.

Concurrently, a comprehensive spatial point cloud materializes within your real-time preview viewport window. While collecting site data, users can dynamically toggle workspace options, including switching perspectives between standard **top-down** site overview charts and an immersive **first-person** tracking alignment view. Frame indicator borders, point visualizers, and raw imagery layers can be toggled on or off, with full-screen expansions supported at any time.

Saving, Uploading & Exporting

Engaging the stop command cleanly finishes collections, prompting project naming options. An immediate metadata overview presents crucial dataset validation parameters, including achieved **GNSS accuracy bounds** and the total number of captured exposure frames.

Saved project structures can be fully explored locally via interactive 3D scene controls or filtered down into separate underlying raw snapshot assets. Processing workflows are split into two primary paths:

• Direct Cloud Processing: Upload projects instantly to Pix4Dcloud systems directly through the app UI, with specific output coordinate spatial reference definitions assigned at submission.
• Local Post-Processing Export: Generate a structured ZIP payload directory containing raw assets, dense point cloud scene archives (**PLY** format), or completely finalized 3D textured surfaces (**OBJ** mesh files) to import into third-party desktop engineering environments.

Conclusion

Combining the professional software capability of Pix4Dcatch with an integrated Emlid Scanning Kit and the Emlid Reach RX produces a highly mobile, terrestrial scanning framework delivering survey-grade structural metrics. These tools allow field operators to scan assets directly on a standard phone screen, archive models, measure volumes, log annotations, and safely communicate exact site updates with project stakeholders.