It is always best to use RTK/PPK in conjunction with GCPs and Checkpoints. But if you are forgoing GCPs and going ahead with an RTK/PPK-only map it is still necessary to survey, collect, and process Checkpoints to understand the map accuracy.
RTK
Pre-Flight RTK Assessment
- Verify Coverage: Always confirm RTK availability for your project area within DroneDeploy before flight. Strong, green signal strength is ideal. Amber indicates weak or limited coverage, while red signifies no coverage. For amber or red zones, consider post-processing with PPK (Post-Processed Kinematic) corrections instead of relying solely on RTK during flight.
- Monitor RTK Fix: When first connecting your drone the RTK icon in the DroneDeploy flight app will flash amber. Once it has received a fix it will turn solid green. If you are in an RTK coverage area, but are not receiving a fix, first try cycling the drone off and then back on. Throughout the flight, ensure the RTK icon in the top right corner of the DroneDeploy flight screen remains green. A green icon signifies a successful RTK connection and ongoing correction application.
Connecting to the RTK Network
DroneDeploy automatically establishes the RTK connection. However, two key points to remember:
- Custom NTRIP Incompatible: If you wish to use your own NTRIP for RTK corrections you will not be able to configure it in DroneDeploy.
- Continuous Internet Connection Essential: A stable internet connection is crucial for utilizing RTK throughout your flight. In remote locations, a mobile hotspot provides a reliable solution.
Image Processing with RTK
Processing images captured with a successful RTK fix is straightforward. Simply upload them to the DroneDeploy Smart Uploader, and the system will automatically apply RTK corrections during processing.
FAQs
Who has access to DroneDeploy’s RTK workflow?
DroneDeploy customers with an Advanced, Teams, or Enterprise subscription and a Mavic 3E/3T with an RTK module can access DroneDeploy’s RTK workflow.
What if I need to fly outside of the RTK network coverage area?
If you’re outside the RTK network coverage area, you can still fly with DroneDeploy, but you will not get RTK corrections. You can either connect to your own RTK network and fly with the Pilot 2 app or use our PPK processing explained here: PPK
Will I need to lay down GCPs and Checkpoints when using DroneDeploy’s RTK workflow?
GCPs are the most reliable way to generate consistent absolute accuracy. However, with an RTK fix, your maps may have sufficient absolute accuracy, depending on your use case. Still, it depends on the drone's distance from automatic RTK network locations, among other factors. Always be sure to verify map accuracy with checkpoints. Read our articles in the section called Understanding Ground Control