What is the sensitivity of my CDI when using GPS?
A. En route, full-scale Course Deviation Indicator (CDI) deflection is typically 5 miles with an accuracy of +/- 2 miles. Within 30 miles of the arrival and departure airport, GPS CDI sensitivity typically transitions to one mile. When flying an approach (and the approach mode is armed), GPS CDI sensitivity transitions from 1 mile to 0.3 miles approximately 2 miles from the FAWP.
