Garmin G1000 Mooney M20TN - Manual (Page 58)

Garmin G1000 Pilot’s Guide for the Mooney M20M/M20R/M20TN 190-00647-00 Rev. A 2-12
FLIGHT INSTRUMENTS
NAVIGATION SOURCE
The HSI can display two sources of navigation: GPS or NAV (VOR, localizer, and glideslope). The CDI
Softkey cycles through the navigation sources. Color indicates the current navigation source: magenta (for
GPS) or green (for VOR and LOC).
Figure 2-19 Navigation Sources with Example HSI Annunciations
The following annunciations appear in yellow on the HSI to indicate abnormal GPS conditions:
• ‘INTEG’: Loss of Integrity–GPS integrity is insufficient for the current phase of flight
• ‘WARN’: GPS position error
Changing navigation sources:
1) Press the CDI Softkey to change from GPS to VOR1 or LOC1. The light blue tuning box is placed over the NAV1
standby frequency in the NAV Frequency Box.
2) Press the CDI Softkey again to change from VOR1 or LOC1 to VOR2 or LOC2. The light blue tuning box is placed
over the NAV2 standby frequency.
3) Press the CDI Softkey a third time to return to GPS.
A
UTOMATIC
N
AVIGATION
S
OURCE
S
WITCHING
On the AUX - System Setup Page, ‘ILS CDI Capture’ may be changed to ‘Manual’. In ‘Auto’ (default)
setting, the system automatically switches from GPS to LOC navigation source and changes the CDI scaling
accordingly when:
• A localizer or ILS approach has been loaded into the active flight plan
• The final approach fix (FAF) is the active leg, 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