Glideslope Mode (Gs) - Garmin G3X Pilot's Manual

AFCS

GLIDESLOPE MODE (GS)

Glideslope Mode is available for LOC/ILS approaches to capture and track the
glideslope. When Glideslope Mode is armed (annunciated as 'GS' in white), LOC
Approach Mode is armed as the lateral flight director mode.
Selecting Glideslope Mode:
1) EXTERNAL NAVIGATOR: Tune and activate the desired localizer frequency.
2) EXTERNAL NAVIGATOR: Ensure that LOC is the selected navigation source
(use the CDI SRC Softkey to cycle through external navigation sources if
necessary).
3) Press the APR Key (GMC 305) or press the ALT/PTCH Softkey to access
the autopilot pitch modes and press AP APPR Softkey. This simultaneously
selects LOC and GS (Glideslope) Modes.
Or:
1) EXTERNAL NAVIGATOR: Tune and activate the desired localizer frequency.
2) EXTERNAL NAVIGATOR: Load the approach (LOC, ILS, LDA, SDF, etc) into
the flight plan.
3) Press the APR Key (GMC 305) or press the ALT/PTCH Softkey to access
the autopilot pitch modes and press AP APPR Softkey. This simultaneously
selects LOC and GS (Glideslope) Modes.
Once LOC is the navigation source, the localizer and glideslope can be captured.
Upon reaching the glideslope, the flight director transitions to Glideslope Mode and
begins to capture and track the glideslope.
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Garmin G3X Pilot's Guide 190-01115-00 Rev. K