Navigation190-02207-02 Rev. 1 GPS 175/GNX 375 Pilot’s Guide 3-233.3.3 Smart Airspace[1]Vertical distance above and below aircraft altitude.AIRSPACE DATA SYMBOLSSMART AIRSPACE CRITERIAAIRCRAFT ALTITUDE AIRSPACE PROXIMITYTO AIRCRAFT [1]Sea level >1,000 ft>10,000 ft 2,000 ftSYMBOL DESCRIPTION SYMBOL DESCRIPTIONClass B AltitudeLabel (ceiling/floor) Class C/TCAClass C AltitudeLabel (ceiling/floor) Class DClass D AltitudeLabel (ceiling only) Restricted/ProhibitedTFR MILClass B/TMA Other/ADIZGarmin’s Smart Airspace featureautomatically de-emphasizesnon-pertinent airspace away fromthe aircraft’s current altitude.When an airspace’s verticalproximity to the aircraft is>1,000 ft:• Its boundary becomestransparent• All associated altitude labelsturn grayThis range increases linearly to2,000 ft as the aircraft ascends to10,000 ft.Smart Airspace OffSmart Airspace OnNon-pertinentAirspace
