Data Flags
Data flags appear on the left side of the display to notify
you when there is a loss of reported information. The data
usually displayed, such as lightning or nearby terrain, may
still exist, but may not be displayed for technical reasons.
For instance, when the amber TRAF data flag appears it
means that the MX20 is not receiving Traffic information
from the sensor. So, traffic may exist in your vicinity, but
will not be displayed on the MX20.
POS
No valid position information is available from the
source. Do not expect a valid position
representation on the maps. The Ownship symbol
will have an “X” through it.
RTE
No valid route (flight plan) is available from the
external navigation source. Route (flight plan)
information will not be shown on the maps.
ALT
No valid altitude information is available from the
external source. Altitude related functions will not
operate, such as terrain awareness.
TRAF
No traffic information is received from the optional
external source. Traffic will not be displayed. Your
position information may not be broadcast in
ADS-B capable systems.
ADSB
The GPS receiver in the GDL 90 UAT is not
reporting a valid position. ADS-B broadcast will
not include a position report.
LT
No valid lightning detection information is being
received from the optional Stormscope sensor.
Strike and cell information will not be displayed.
TER
Terrain coverage is not available for some part of
the terrain advisory coverage area. Terrain
advisories may not be provided.
NAV
When connected to the SL30, indicates the SL30
is not available or valid. ILS, OBS, and VORs will
not be highlighted.
SKYW
No valid traffic information is being received from
the optional Skywatch sensor. Traffic information
will not be displayed.
9
Getting Started
