Honda HondaJet HA-420 Pilots Operating Manual page 229

Honda Aircraft Company
HA-420 SYSTEMS
POM DESCRIPTION
Radio Altimeter
Data from the optional single Radio Altimeter is displayed on the PFD,
when the height is between 0 and 2,500 ft. Minimums alert may be
selected based on radio altimeter height in which case the selected height
is displayed on the PFD as is rising terrain symbology on the altitude
tape.
Radio Altimeter data is also used by the optional TAWS A and TCAS II
systems.
Surveillance Systems
Diversity Capable Mode S Transponder
The GTX 33D ES Mode S Diversity Transponder provides Mode A, C,
and S capabilities for ATC and TCAS I surveillance requirements as well
as Extended Squitter for ADS-B Out functionality.
Mode selection, code and flight ID entry is performed through the CDU.
IDENT function can be activated through the CDU or via the IDENT
switch on each yoke. The transponder powers up in an automatic mode
that will automatically select ground mode on the ground and the highest
available mode when in flight.
If the optional second transponder is installed, selection of the active
transponder is done through the CDU. If the active transponder fails the
other unit is automatically activated.
A GTX-3000 single or dual transponder is installed if the optional
TCAS II system is installed. The alternate unit is controlled in the same
manner and supports the same modes as the baseline unit.
HJ1-29000-005-001
October 30, 2016 1-213
FOR TRAINING PURPOSES ONLY