G1000 Trainer Bezel Overview - Sporty's

WFDE Prediction
WFDE (WAAS and Fault Detection and Exclusion) Prediction detects and excludes
satellite failures that can interrupt normal GPS navigation. When WFDE Prediction
is performed prior to departure, it ensures that there is an adequate number of
working satellites in the GPS constellation to navigate the specified route.
To use WFDE Prediction prior to departure:
1. Create a flight plan or activate a saved flight plan.
2. Run the WFDE Prediction program by selecting ‘Options’, then ‘WFDE
Prediction Program’.
Your active flight plan is automatically imported into the WFDE Prediction
program.