Garmin G1000H Bell 407GX Pilot's Guide - Page 75

FLIGHT INSTRUMENTS Changing navigation sources: 1) Select the CDI Softkey to change from GPS to VOR1 or LOC1. This places the light blue tuning box over the NAV1 standby frequency in the upper left corner of the PFD. 2) Select the CDI Softkey again to change from VOR1 or LOC1 to VOR2 or LOC2. This places the light blue tuning box over the NAV2 standby frequency. 3) Select the CDI Softkey a third time to return to GPS. NAV1 Selected for Tuning NAV2 Selected for Tuning GPS Selected LOC1 Selected VOR2 Selected Selecting the CDI Softkey Cycles through Navigation Sources Figure 2-27 Selecting a Navigation Source The system automatically switches from GPS to LOC navigation source and changes the CDI scaling accordingly when all of the following occur: • A localizer or ILS approach has been loaded into the active flight plan • The final approach fix (FAF) is the active waypoint, the FAF is less than 15 nm away, and the aircraft is moving toward the FAF • A valid localizer frequency has been tuned • The GPS CDI deviation is less than 1.2 times full-scale deflection GPS steering guidance is still provided after the CDI automatically switches to LOC until LOC capture, up to the Final Approach Fix (FAF) for an ILS approach, or until GPS information becomes invalid. Activating a Vector-to-Final (VTF) also causes the CDI to switch to LOC navigation source. GPS steering guidance is not provided after this switch. 190-01255-00 Rev. A Garmin G1000H™ Pilot's Guide for the Bell 407GX 63