|The H MODE button allows the
pilot to select between three horizontal navigation modes, providing
1. Track mode (TRK)– used for area navigation tracking a host GPS flight plan (or GOTO data).
2. Course mode (CRS)- provides vector navigation as illustrated below. CRS also allows tracking a specific pilot-selected course when the host GPS route function is not in use. CRS mode uses the GPS signal to provide the aircraft groundtrack. Rotating the encoder knob changes commanded course.
3. Intercept mode (INT) – used to intercept a predefined GPS desired track (DTK) as illustrated below. The INT mode also uses the GPS signal to provide the aircraft groundtrack.