Pilot's Guide

Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT/GTi
190-00663-02 Rev. B84
FLIGHT INSTRUMENTS
TheMDA/DHmaybesetfromeitherPFDandissynchronizedonbothPFDs.Thefunctionisresetwhenthe
power is cycled.
Setting the barometric or radar minimum descent altitude and bug:
1) Press the TMR/REF Softkey.
2) Turn the large FMS Knob to highlight the Minimums field.
3) Turn the small FMS Knob to highlight ‘BARO’ or ‘RAD ALT’. ‘OFF’ is selected by default. Press the ENT Key or
turn the large FMS Knob to highlight the next field.
4) Use the small FMS Knob to enter the desired altitude (from zero to 16,000 feet when ‘BARO’ is selected, or up
to 2,500 feet when ‘RAD ALT’ is selected).
5) To remove the window, press the CLR Key or the TMR/REF Softkey.
Figure 2-49 Timer/References Window, MDA/DH Setting
RADAR ALTIMETER
When the radar height (the aircraft altitude above ground level detected by the radar altimeter) is between
zeroand2500feet,thecurrentvalueisdisplayedingreentotherightofthecurrentaircraftheading(Figure
2-50).Displayofradarheightbecomesmoresensitiveastheheightabovegrounddecreases(Table2-4).
Figure 2-50 Current Radar Height
Radar Altimeter
Radar Height Range Shown to Nearest
0 to 200 feet 5 feet
200 to 1500 feet 10 feet
1500 to 2500 feet 50 feet
Table 2-4 Radar Altimeter Sensitivity
When the radar altimeter is selected as the altitude source for the minimum descent altitude alerting function
(Figure2-51),thecoloroftheradarheightchangestoyellowuponreachingatorbelowtheMDA/DH(Figure
2-52).