---
title: Return to Home Calibration with the R3 Pro V2 or R3 Pro
description: How to bring the R3 Pro back for landing and ensure proper data collection!
---

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August 8, 2024

# Return to Home Calibration with the R3 Pro V2 or R3 Pro

## Improper landing procedure will result in a processing failure, and likely needing to re-fly your survey.

- At the end of your mission, return to the landing zone at a speed greater than** 5 m/s **for at least **5 seconds **.
- As you approach , **do not exceed 3 m/s  horizontally** while you descend for landing.  
- The GNSS Velocity plot below shows what the recommended return to home calibration flight looks like.  
  ![Return to Home Calibration 1](https://learn.rockrobotic.com/hs-fs/hubfs/Return%20to%20Home%20Calibration%201.png?width=688&height=585&name=Return%20to%20Home%20Calibration%201.png)

### Helpful Tips: 

If you are using an M300 & M350, you can use the Return to Home feature and it should provide a sufficient end flight calibration. 

Turning the drone off while the LiDAR is capturing will result in you being unable to colorize your lidar. Always stop data collection and turn off your LiDAR unit **before** turning off your drone. If you're flying a small mission and are not at least roughly 800 feet (250 meters) away from your landing area, just fly away from you before hitting return to home. 

 

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