GRT Avionics

with synthetic vision on and obstructions selected as ''chart ''symbol and obstructions on i am not seeing anything on the pfd. 1300 agl and 2 miles should do it? are there any modes that should be on or off to display the obs.?
i do not have the map feature.
bob noffs

The database has obstructions 250 feet tall and taller, and some shorter obstructions near runway centerlines. The obstructions are only shown when they meet the yellow or red alert criteria. An obstruction appears red when within 1 minute or 5 nmi and your altitude trend will bring you within 250 feet of it. An obstruction appears yellow if it's at or above your altitude but still 5-10 nmi away.

ok, good info, thanks.