Garmin G1000 Pilot’s Guide for the Socata TBM 850 190-00709-00 Rev. A2-12FLIGHT INSTRUMENTSRadar Height Range Shown to Nearest-40 to 200 feet 5 feet200 to 1500 feet 10 feet1500 to 2500 feet 50 feetTable 2-1 Radar Altimeter SensitivityFigure 2-16 Current Radar HeightFigure 2-18 Radar Altimeter Invalid DataFigure 2-17 RA as Altitude Source for MDA/DHTesting the Radar Altimeter:1) Press the SYSTEM Softkey on the MFD.2) Press the RA TEST Softkey.50 feet shall be displayed in the RA box directly above the current heading (Figure 2-19).Figure 2-19 Radar Altimeter TestVERTICAL SPEED INDICATOR (VSI)The Vertical Speed Indicator (VSI; Figure 2-20) displays the aircraft vertical speed with numeric labels andtick marks at 2000 and 4000 fpm in each direction on the non-moving tape. Minor tick marks are at intervalsof 1000 fpm. The current vertical speed is displayed in the pointer, which also points to that speed on thenon-moving tape. Digits appear in the pointer when the climb or descent rate is greater than 100 fpm. If therate of ascent/descent exceeds 4000 fpm, the pointer appears at the corresponding edge of the tape and the rateappears inside the pointer.A magenta chevron bug is displayed as the Required Vertical Speed Indication (RVSI; see Figure 2-20) forreaching a VNV Target Altitude once the “TOD [Top of Descent] within 1 minute” alert has been generated. Seethe Flight Management and AFCS sections for details on VNV features, and refer to Section 2.4, SupplementalFlight Data, for more information about VNV indications on the PFD.
