Push Buttons - FreeFlight ADS-B FDL-978 Series Installation Manual

Pos.
ON
The FDL-978 ADS-B equipment is placed in Transmission Mode with no
pressure altitude reported in transmitted messages.
The FDL-978 equipment automatically switches between Airborne and
Ground Transmission Mode. In Airborne Mode ON is displayed below the
aircraft image and in Ground Mode GND is displayed below the aircraft
image.
Airborne Transmission Mode

3.1.2.3 Push Buttons

The TC978 control inputs, such as Squawk Codes, Call Sign/Flight ID, and mode
control (IDENT, Altitude Inhibit, transmit Standby) are configurable by the TC978
only when external controls are not being used.
Button
IDT Press the IDT button when ATC instructs you to "Ident" or "Squawk Ident."
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Suppression of pressure altitude reporting is indicated by FL---.
ADS-B FDL-978 Series and
Lite Series Installation Manual
Document No. 87343 Rev F
Description
Ground Transmission Mode
Description
3-5