Vertical Deviation Indicators - Garmin G3X TOUCH Single 7 Manual

7.2

Vertical Deviation Indicators

The Vertical Deviation (Glideslope) Indicator (VDI) appears to the left of the altimeter whenever an ILS
frequency is tuned in the active NAV field of an external navigator. A green diamond acts as the VDI
Indicator. The green 'G' indicates an external glideslope source. If a localizer frequency is tuned and
there is no glideslope signal, "NO GS" is annunciated.
Vertical Deviation Indicator (Glideslope – ILS Source)
The Vertical Deviation (Glidepath) Indicator (VDI) also appears to the left of the altimeter during a GPS
approach. The glidepath is analogous to the glideslope for GPS approaches supporting WAAS vertical
guidance (LNAV+V, L/VNAV, LPV). The Glidepath Indicator appears on the G3X Touch as a magenta
diamond. The magenta 'G' indicates a GPS source. If the approach type downgrades past the final
approach fix (FAF), "NO GP" is annunciated.
Vertical Deviation Indicator (Glidepath – GPS Source)
An external navigation source is not required to receive VNAV indications. A magenta chevron (VNAV
Indicator) to the left of the altimeter on the Vertical Deviation Scale shows the VNAV profile, and a
magenta chevron (Required Vertical Speed Indicator (RVSI)) on the Vertical Speed Indicator indicates
the required vertical speed to reach the target altitude. The magenta 'V' indicates a VNAV profile is
active.
AFMS or Supplemental AFM for the Garmin G3X Touch EFIS 190-01754-01 Rev. 5
P a g e | 7-4