600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 38 of 47
6.1.
Mode selection keys
Use the mode selection keys to change the transponder mode. The table below describes each
of these modes.
Mode
Key
Description
Off
PWR
Stratus ESG is powered off.
Standby
SBY
Stratus ESG is powered on and does not send responses to
any ATC interrogations.
Altitude
ALT
Stratus ESG is powered on and responds to all Mode A/C/S
interrogations. Altitude is reported.
Ground
(none)
Stratus ESG is powered on and in ALT or On mode, but does
not report altitude. Ground mode is automatically detected.
Press the
ALT
or
ON
key to override Ground mode. Press
SBY
to remove this override.
On
ON
Stratus ESG is powered on and responds to all Mode A/C/S
interrogations, but altitude reporting is suppressed.
Table 25: Mode selection keys
6.2.
Event indicators
When certain events occur, an indicator will appear on your Stratus ESG display. The table
below describes each indicator’s meaning.
Indicator
Meaning
ADS-B transmission contains GPS position information with a radius of
containment under 1 nautical mile.
A response was transmitted from a mode A/C/S interrogation. The indicator
will time out if another reply does not occur within one second.
A built-in-test (BIT) has failed. See Section 4.19.9 of this document and the
Stratus ESG Pilot’s Guide for more information about BIT failures.
Table 26: Event indicators
6.3.
FUNC key
Press the
FUNC
key or the arrow keys, to switch from the Default screen to the Pressure
Altitude screen, GPS screen, Flight ID screen, and Brightness screen. These screens are
described below:
Pressure Altitude screen
: Displays the current pressure altitude. If no valid altitude is detected
or Stratus ESG is in On mode, the altitude field will be replaced by dashes.