Garmin G3X Installation Manual page 555

Text Out – Selecting Text Out enables a pop-up menu to appear when the Menu key is pressed (while on
the COM Configuration Page). This pop-up menu allows setting three selections (Attitude/Air Data,
Engine/Airframe Data, and GPS Position/Velocity) to On or Off. The On setting allows the output of Text
Data as described in Appendix B.
Aviation In - The proprietary format used for input to the G3X (baud rate of 9600) from an FAA certified
Garmin panel mount unit. Allows the G3X to display a Go To or route selected on the panel mount unit,
which eliminates the need to enter the destination on both units. If the external GPS navigator supports
both the Aviation In and MapMX formats, Garmin recommends using the preferred MapMX format.
Aviation In/NMEA & VHF Out - Receives aviation data and transmits out both NMEA data, at 9600
baud, and VHF frequency tuning information to a Garmin Nav/Comm radio.
MapMX - The preferred data source when interfacing with an external navigator, and is only available
from Garmin units with a WAAS GPS receiver. When MapMX data is received, the G3X display can
show more accurate information about the external navigator flight plan (e.g. DME, arcs, and holding
patterns).
GTX TIS-A In - Receives TIS A-data from a Garmin Mode-S panel-mount transponder. If the
transponder is connected to the ADAHRS 1 LRU (as shown in Section 24.2), it is not necessary to connect
its output to a GDU RS-232 port.
TIS-A In/NMEA & VHF Out - Receives TIS-A data and transmits out both NMEA data, at 9600 baud,
and VHF frequency tuning information to a Garmin Nav/Comm radio. Note that if a transponder is
connected to the ADAHRS 1 LRU (as shown in Section 24.2), it is not necessary to select TIS-A In, as the
transponder data is received via the ADAHRS 1 LRU.
Garmin VHF Nav/Comm - Outputs frequency tuning and radial selection data to an SL30 or GTR 20/200
Nav/Comm radio, and receives lateral and vertical NAV deviation signals.
Garmin VHF Comm - Outputs frequency tuning data to an SL40 or GTR 20/200 Comm radio.
190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout
Rev. AA Page 31-103