Page 4-4
Installation Checkout
TQG191-IM
Rev 0: 28 Feb 2019
KTX2
Installation Manual
4.2.4 Extended Squitter (ADS-B) Indications
The symbols for Extended Squitter show the current operational status of ES and ADS-B
transmissions.
Indication
Function
Description
Extended Squitter on.
Letter “A” appears
white
NORMAL ADS-B Operation
ADS-B out function is active and
transmitting messages
Extended Squitter on.
Letter “A” appears
yellow
Indicates an ADS-B FAILURE
ADS-B out function is active but not
transmitting messages. [Mode-S
may still be active]
Extended Squitter on
Letter “A” appears red
Indicates an ADS-B FAILURE
Possible GPS FAILURE
ADS-B out function is active and
transmitting type ZERO position
messages or no position messages
due to missing position data
(longitude, altitude, latitude)
Extended Squitter off
Letter “A” disappears
Indicates an ADS-B FAILURE
Indicates a Mode-S(ES) FAILURE
No ES is being transmitted
Table 4-3: Extended Squitter and ADS-B Indications
