Garmin Software Version 0719.00 Betriebsanweisung PDF herunterladen (Seite 40)

Garmin G1000 Cockpit Reference Guide for the Socata TBM 850

190-00708-00 Rev. A

2-8

SECTION 2

FLIGHT INSTRUMENTS

The desired barometric/radar minimum descent

altitude (MDA, or Decision Height, DH) can be set in the

Timer/References Window.

Visual annunciations alert the pilot when approaching

the MDA:

• When the aircraft altitude descends to within 2500

feet of the MDA setting, the BARO MIN or RA MIN

Box (depending on the selected source) appears with

the altitude in light blue text. The bug appears on

the tape in light blue once in range.

• When the aircraft passes through 100 feet of the

MDA, the bug and text turn white.

• Once the aircraft descends past the MDA, the bug

and text turn yellow and the aural alert, “Minimums

Minimums”, is generated.

Alerting is inhibited while the aircraft is on the ground.

If the aircraft climbs after having reached the MDA, once it

reaches 50 feet above the

MDA, alerting is disabled.

Within 100 ft

Altitude Reached

Within 2500 ft

Figure 2-17 Barometric Minimum Descent Altitude

Alerting Visual Annunciations

Barometric

Minimum Box

Barometric

Minimum Bug

Set the barometric altitude minimums:

From the Timer References Window, turn the large

FMS

Knob to highlight the source ﬁeld.

Turn the small FMS Knob in the direction of the

green arrow to select BARO (barometric altimeter)

or RAD ALT (radar altimeter) as the altitude

source.

Turn the large FMS Knob to select the altitude

ﬁeld.

Turn the small

FMS

Knob to select the desired

altitude minimums and press the

ENT

Key.

2.8 RADAR ALTITUDE

When RAD ALT is selected as the altitude source in the

Timer/References window, radar altitude is automatically

displayed when the aircraft is within the display range of

-40 to 2,500 feet. Radar altitude is displayed as shown in

Figure 2-18. The indication changes to yellow when the

aircraft is below the selected minimum altitude.

Figure 2-18 Radar Altitude

Radar Altitude

Indication

Testing the Radar Altimeter:

Select the SYSTEM Softkey on the MFD.

Select the RA TEST Softkey. The Radar Altitude

window displays 50 feet, indicating a properly

functioning system.

Selecting the RA TEST Softkey again, or exiting the

System Page cancels the test.

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