BENDIXKing AeroNav 910 Pilot's Manual page 201

If an individual intruder displays "DGRD" in yellow in the traffic
thumbnail, then that intruder is reporting its own GPS position
accuracy (HFOM, VFOM) as outside normal operating limits.
NOTE
Traffic Source Selection
An individual AeroNav can only display TIS-B (e.g.
"SkyTrax100") or sensor traffic (e.g. "TAS600",
"Skywatch", etc) traffic at any given time. The choice to
select the source is made at time of installation in the
setup pages.
TIPS AND TECHNIQUES
Traffic Overlays in Dual AeroNav Operations
For those installations with dual AeroNavs and more
than one type of traffic source (e.g. "TAS600" and an
TIS-B "SkyTrax100") in the aircraft, BendixKing
recommends wiring one traffic source to one AeroNav
and the other traffic source to the second AeroNav.
TIPS AND TECHNIQUES
Traffic Overlays in Single AeroNav Operations
For those installations with a single AeroNav and more
than one type of traffic source (e.g. "TAS600" and an
TIS-B "SkyTrax100") in the aircraft, BendixKing
recommends wiring both traffic sources to the AeroNav
so that the higher priority traffic overlay can display on
the AeroNav and the lower priority traffic data can be
streamed out of the AeroNav via WiFi for display on a
compatible tablet/wireless device application.
The current display priority is TAS6XX/TCAD,
Skywatch, Other ARINC429 Traffic sensor, SkyTrax100.
89000039-010
Rev 1 May 2019
AeroNav 900/880 Series Pilot's Guide
Map Subsystem 4-51