Garmin GNC 420W Pilots Guide - Page 99

SECTION 6 PROCEDURES Figure 6-40 Approach Window DO NOT USE FOR NAVIGATION    Figure 6-42 Procedures Page 5) When approaching the IAF (D258G), a waypoint alert ('NEXT DTK 353°') appears in the lower right corner of the screen (Figure 6-43). As the distance (DIS) to the IAF approaches zero, the alert is replaced by a turn advisory ('TURN TO 353°').    Billard Muni (Topeka, KS) VOR or GPS Rwy 22 Figure 6-41 Terminal Mode Refer to Figure 6-41 for the following steps. 3) Within 30 nm of KTOP, the GNC 420 switches from enroute mode to terminal mode and the CDI scale transitions from 5.0 to 1.0 nm, full scale deflection. 4) If the approach has not yet been activated (in step 2), do so when cleared for the approach (Figure 6-42). Figure 6-43 Waypoint Alert 6) Follow the arc, when the course select setting and desired track differ by more than 10°, a 'Set course to ###°' message appears on the Message Page. 190-00140-20 Rev. K GNC 420(A) Pilot's Guide and Reference 6-15