BENDIXKing AeroNav 910 Pilot's Manual page 79

AeroNav 900/880 Series Pilot's Guide
Yellow or red highlighted obstacles on the SynVis scene will also
display the MSL altitude of the obstacle top.
Depiction of non-threat obstacles in the SynVis scene is governed
in part by the Map Setup page selections. If obstacle filtering is
disabled on the Map Setup page, then all obstacles within 12nm
will be displayed in the SynVis scene. If obstacle filtering is
enabled, then the system will display the greater of 2000' or the
selected altitude filtering number. For example, if 500', 1000' or
1500' were selected on the Map Setup page for low obstacle
altitude filtering, the system will depict all obstacles within 2000'
vertical feet of the aircraft out to 12nm in the SynVis scene.
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Rev 1 May 2019 SVS Subsystem 2-11