User's Manual

EN
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press the ENT button to accept and advance to the next digit. The flight ID is
terminated with an “space ” character located on the 7 button. When ENT is
pressed on the end space, the new Flight ID will replace the previous value. If
a button is not pressed for 7 seconds, the changes are ignored and the
previous code restored.
The Flight ID should correspond to the aircraft call sign entered on your flight
plan. If no flight plan is active, the aircraft registration should be used as your
Flight ID. Use only letters and digits. If the Flight ID is less than 8 characters
long, entering the “space” character will end it.
Altitude Monitor
The Altitude Monitor activates an audio annunciator or annunciator light
(depending on installation) when the aircraft pressure altitude differs from the
selected altitude by more than 200 feet. Press the FUNC button to display the
altitude monitor enable screen. Pressing ENT toggles the altitude monitor at
the current altitude.
When altitude monitoring is in use, a small deviation pointer appears adjacent
to the altitude display on the transponder.
ADS-B Monitor
The ADS-B Monitor is only available on installations that include an ADS-B
position source. The ADS-B Monitor provides a display of the position
information that is being transmitted in ADS-B position reports. This can
provide confirmation that the correct information is being transmitted,
particularly where the GPS source is remote from the transponder.
In the event that valid position information is NOT available from the GPS, the
latitude and longitude display will be replaced by dashes; if no valid latitude
and longitude is shown then ADS-B position information is NOT being
transmitted.
Loss of ADS-B position information will also result in a WARNING message
being displayed.
Warning Messages
If the transponder detects a problem, the screen will indicate WARNING and a
brief statement of the problem. Depending on the nature of the problem,
your transponder may not be replying to interrogations. Note the message on
the screen and pass that information to your avionics maintenance
organisation. The WARNING message should clear when the event has
cleared. Press ENT to clear the message at any time; if the fault is still present
the message may reappear.