Loki: Troubleshooting Loki GNSS LED not turning green

Problem: Loki’s GNSS LED isn’t turning green. (The GNSS LED is the one on left above the USB C port) Probable Solution: A green GNSS LED on Loki indicates that it has good reception.  A red GNSS LED can be caused by a number of things.  The following are suggestions if you are having trouble…

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Loki™ – Frequently Asked Questions

General:  What is Loki? Loki is a Global Navigation Satellite System (GNSS) Post-Process Kinematic (PPK) direct geopositioning hardware & software solution for low cost DJI drones as well as custom drones using digital single lens reflex (DSLR) cameras such as Nikon, Canon, Sony, etc.  It is aimed at the high accuracy drone mapping community.  …

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Direct Geopositioning Accuracy using AirGon Loki – A Case Study

Introduction: In September of 2017, AirGon LLC released Loki, a direct geopositioning system for the DJI Inspire 2 drone as well as generic drones carrying a digital single lens reflex (DSLR) camera.  Since that time, Loki has been adapted to the Phantom 4 Pro and the m2xx series of DJI drones.   A direct geopositioning system…

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The AirGon Sensor Package, Revision 3

When using imagery as a source of metric measurement, an up-front task that must be accomplished is determining the exact position (X, Y, Z) and orientation (Pitch, Yaw and Roll) of the camera at the precise time of each image exposure.  This seven tuple of data is termed the dynamic exterior orientation (DEO or often…

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