Garmin G3X Installation Manual page 562

GPS Antenna Offset: Enter the distance from the nose of the aircraft to the GPS antenna used to provide
position data to the transponder.
TIS-A Traffic Data: Can be set to Enabled or Disabled, as applicable. Controls only if traffic information
will be displayed, it does not affect whether the transponder will output traffic data.
PFD Page Controls: Can be set to Show or Hide the transponder controls on the PFD as desired for a
panel-mounted transponder.
ADS-B Transmit: Sets Automatic Dependent Surveillance-Broadcast (ADS-B) to DISABLE, ENABLE,
or PILOT SET. DISABLE is the default. When ADS-B is set to DISABLE the BDS (refer to the
applicable transponder installation manual for BDS information) items that are marked "ES Enabled Units
Only" are not active (no extended squitter). When ADS-B is set to PILOT SET, ADS-B transmissions are
active at power-on.
ADS-B UAT In: Set to SUPPORTED if the aircraft is equipped with a receiver that provides ADS-B In
capability using the 978 MHz UAT frequency, such as the GDL 39.
ADS-B 1090ES In: Set to SUPPORTED if the aircraft is equipped with a receiver that provides ADS-B In
capability using the 1090 MHz frequency, such as the GDL 39.
Enhanced Surveil: GTX 23/23ES/33/33ES only. Sets Enhanced Surveillance (EHS) to DISABLE or
ENABLE. ENABLE is the default. When EHS is set to DISABLE the BDS (refer to the applicable
transponder installation manual for BDS information) items that are marked "EHS Only" are not active (no
enhanced surveillance).
Position Integrity: This selection is only available for GTX 23 ES and GTX 33ES units. Refers to the
integrity level of the separate TSO WAAS GPS input that can be connected to the transponder. Set to 1 -7
E
when a certified GNS/GTN/GPS unit or GPS 20A is providing ADS-B Out+ to the transponder. Set to
"VFR GPS" if none of these devices (certified GNS/GTN/GPS unit or GPS 20A) are connected to the
transponder.
VFR Code: This field is the four-digit code that is selected when the user presses the VFR key. In the
United States, 1200 is the VFR code for any altitude. The default is set to 1200.
HSDB GTN/GTS Device: These fields are only available when Transponder Type is configured for a
GTX 345, 345R, or 45R. Used to select which device(s) the GTX will communicate with (GTN and/or
GTS) via HSDB.
190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout
Rev. AA Page 31-110