AeroNav 900/880 Series Pilot's Guide
SVS PAGE VARIATIONS
If there is no valid heading input to the AeroNav, the TVV/FPM is
removed from the SynVis scene and the directional indication is
labeled "TRK" indicating GPS track as the source.
SynVis with no Heading Input
If the SynVis scene is turned off, the page reverts to a more
traditional blue over brown AI-like look.
SynVis Turned Off
89000039-010
2-22 SVS Subsystem
Rev 1 May 2019