Garmin G900X Pilot’s Guide 190-00726-00 Rev. J72FLIGHT INSTRUMENTSSYSTEMOVERVIEWFLIGHTINSTRUMENTSEISAUDIO PANEL& CNSFLIGHTMANAGEMENTHAZARDAVOIDANCEAFCSADDITIONALFEATURESAPPENDICESINDEXHORIZONTAL SITUATION INDICATOR (HSI)The Horizontal Situation Indicator (HSI) displays a rotating compass card in a heading-up orientation. Lettersindicate the cardinal points and numeric labels occur every 30˚. Major tick marks are at 10˚ intervals and minortick marks at 5˚ intervals. A digital reading of the current heading appears on top of the HSI, and the currenttrack is represented on the HSI by a magenta diamond. The HSI also presents turn rate, course deviation,bearing, and navigation source information and is available in two formats (360˚ compass rose and 140˚ arc).Changing the HSI display format:1) Press the PFD Softkey.2) Press the HSI FRMT Softkey.3) Press the 360 HSI or ARC HSI Softkey.The 360˚ HSI contains a Course Deviation Indicator (CDI), with a Course Pointer, To/From Indicator, and asliding deviation bar and scale. The course pointer is a single line arrow (GPS, VOR1, and LOC1) or a doubleline arrow (VOR2 and LOC2) which points in the direction of the set course. The To/From arrow rotates withthe course pointer and is displayed when the active NAVAID is received.1 Turn Rate Indicator2 Current Track Indicator3 Lateral Deviation Scale4 Navigation Source5 Aircraft Symbol6 Course Deviation Indicator(CDI)7 Rotating Compass Rose8 OBS Mode Active9 To/From Indicator10 Course Pointer11 Selected Heading Bug12 Flight Phase13 Turn Rate/HeadingTrend Vector14 Current Heading15 Lubber Line11765321121041415 13Figure 2-17 Horizontal Situation Indicator (HSI)89
