Garmin GNC 420W GPS Receiver User Manual


 
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Annunciation Description
LPV Follow lateral and vertical guidance to LPV
minimums. A yellow background indicates
the current VPL and/or HPL values are not
adequate for the approach and is an early
indication that downgrading will occur if
conditions do not improve.
L/VNAV GPS approach identified in the database as
LNAV/VNAV. Fly to LNAV/VNAV minimums.
LNAV+V Non-precision GPS approach with advanced
vertical guidance. Note that some LNAV/VNAV
approaches are not yet marked in the data-
base as such and will show up as LNAV+V. If
the chart shows the approach as LNAV/VNAV,
it can be flown to LNAV/VNAV minimums.
LNAV Non-precision GPS approach or non-GPS ap-
proach, such as ILS or Localizer.
MAPR Missed Approach, indicates the system is
providing missed approach integrity and CDI
full-scale deflection ±0.3 NM. This also shows
that the pilot has initiated a Missed Approach
by pressing the OBS key after crossing the
MAP.
ENR En route, CDI full-scale deflection is 2.0 NM
or current CDI scale selection, whichever is
smaller.
TERM Terminal, CDI full-scale deflection is 1.0 NM
or current CDI scale selection, whichever is
smaller.
DPRT Departure, indicates the system is using non-
precision approach integrity. HAL = 0.3 and
CDI full-scale deflection is 0.3 NM.
OCN Oceanic, CDI full-scale deflection is 2.0 NM.
LOW ALT
(lower window)
For LNAV+V, LNAV/VNAV, or LPV approaches,
the LOW ALT annunciation indicates the
aircraft’s estimated height is lower than the
Final Approach Waypoint height by more than
the current VPL plus 50 meters.
APPROACHES