Top 10 Hints for Designing Drones #4:

RF is your enemy. Both your GPS receiver and your datalink are sensitive to RF interference. RF interference will increase the time it takes for your GPS receiver to lock, and increase the likelihood that you lose lock and reduce your GPS receiver's position accuracy. Note that RTK (or carrier phase) GPS receivers are especially …

DGPS vs GPS

The term DGPS is misused quite a bit in the UAV industry. DGPS, which stands for differential GPS, refers to any system that provides corrections to a GPS receiver based on a second GPS receiver at a known location. The GPS receiver providing the corrections is called the “reference station” and the GPS receiver using …