BENDIXKing AeroNav 910 Pilot's Manual page 47


GND - The transponder will respond to Mode S ground
interrogations from surface movement radar. This mode
is only available in installations that send a ground/air
discrete signal to transponder

SBY - The transponder is on, but will not reply to any
interrogations
Some aircraft installations include a ground/air state input, such
as a gear squat switch or discrete input from an AeroNav. In
those installations, the AeroNav will automatically select GND on
landing or while taxiing and will automatically select ALT when
airborne. Pilot selectable states will be limited to ALT-ON-SBY
when in-air and GND-SBY when on-ground.
When airborne, the transponder should always be set to ALT
unless otherwise directed by Air Traffic Control.
VFR
To quickly set the regional VFR code, press the VFR key. To
return to the previous code, press the VFR key again.
The regional VFR code can be set using the User Options under
AUX-SETUP (see page 5-45).
IDENT
To perform an IDENT function, press the IDENT key. The "Ident"
in transponder data blocks will be highlighted in green while the
transponder is transmitting the Ident pulse.
If a transponder data block contains an "Ident" soft LSK, touching
the soft LSK will activate the transponder IDENT function.
Keyboard Dismissal
The keyboard will be dismissed through one of several methods:

Touching one of the Mode soft keys

Touching the IDENT soft key

Touching the red-X in the top right corner of the keyboard

Ten seconds of inactivity
89000039-010
Rev 1 May 2019
AeroNav 900/880 Series Pilot's Guide
System Overview 1-37