BENDIXKing AeroNav 910 Pilot's Manual page 274

AeroNav 900/880 Series Pilot's Guide
User Option Item Title
Airspace Aural
500ft Callout Aural 
Bearing Reference
5-50 Aux Subsystem
Description
On* - Enables aural alerting of
impending airspace (correlates
with presence of the Airspace
Ahead CAS message)
Off – Disables aural alerting of
airspace.
On* - Enables 500' AGL (based
on GPS altitude) aural callout
when descending through 500'
AGL
Off – Disables 500' AGL callout
Magnetic* - Sets map
orientation and all datablock
information to magnetic
reference
True – Sets map orientation and
all datablock information to true
reference. By selecting True,
the map orientation will display
in True North when "North Up"
view selected on the map page
89000039-010
Rev 1 May 2019