Garmin G900X Pilot’s Guide 190-00726-00 Rev. A2-10FLIGHT INSTRUMENTSHORIZONTAL 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 bug. 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) Select the PFD Softkey.2) Select the HSI FRMT Softkey.3) Select the 360 HSI or ARC HSI Softkey.The 360˚ HSI (Figure 2-14) contains a Course Deviation Indicator (CDI), with a Course Pointer, To/FromIndicator, and a sliding deviation bar and scale. The course pointer is a single line arrow (GPS, VOR1, andLOC1) or a double line arrow (VOR2 and LOC2) which points in the direction of the set course. The To/Fromarrow rotates with the course pointer and is displayed when the active NAVAID is received.1 Turn Rate Indicator2 Current Track Bug3 Lateral Deviation Scale4 Navigation Source5 Aircraft Symbol6 Course Deviation Indicator(CDI)7 Rotating Compass Rose8 OBS Mode Active9 To/From Indicator10 Course Pointer11 Heading Bug12 Flight Phase13 Turn Rate/HeadingTrend Vector14 Current Heading15 Lubber Line11765321121041415 13Figure 2-14 Horizontal Situation Indicator (HSI)89
