LIDAR Targets

Hello All

Any experience/recommendations for ground targets to be used to georeference UAV captured Lidar data?  We have used Hoodman GCP targets for photogrammetric UAV surveys, but these are not reflective enough to use with Lidar.  Lidar data captu

UAV - FAA Part 107 Online Study Courses

Does anyone have experience using any of the online study courses available for passing the FAA Part 107 exam?

I am looking at the following online course:   https://www.dronepilotgroundschool.com/curriculum/

Topcon versus Trimble GPS

What are the differences between the following two types of GPS units?  I will be using both for RTK surveys without a base and the price difference is very significant.

1) Topcon Hiper SR Network Rover Kit (enabled with GGD 10Hz OaF files)

2) Trimble