On* - Will transmit a glideslope
deviation signal for display on
external indicators (e.g. HSI,
EFIS) for approaches that don’t
have a published glideslope
associated with them. Advisory
glideslope will be displayed for
RNAV approaches, GPS
approaches, and approaches
that are authorized for a GPS
overlay regardless of SBAS. In
a non-SBAS environment, if one
of those kinds of approaches is
selected and it has a published
flight path angle in the
database, then expect LNAV+V;
Off – Will not transmit glideslope
deviation data for approaches
that don’t have a published
glideslope associated with
them.
On* - Enables the automatic
tuning of the active nav
frequency slot to follow the
governing navaid in the flight
plan. For example, if the next
FMS flight plan leg is a VOR,
this will automatically tune the
VOR frequency into the active
nav slot;
Off – Disables the automatic
tuning of the active nav
frequency into the active nav
slot.
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