Ground Mapping And Interpretation - Garmin G1000:Beechcraft Baron 58/G58 User Manual

GROUND MAPPING AND INTERPRETATION

A secondary use of the weather radar system is for the presentation of terrain. This can be a useful tool for
verifying aircraft position. A picture of the ground is represented much like a topographical map that can be
used as a supplement to the navigation map on the MFD.
Ground Map mode uses a different gain range than Weather mode. Different colors are also used to represent
the intensity levels. The displayed intensity of ground target returns are defined in the table below. Use of the
GAIN and TILT controls help improve contrast so that specific ground targets can be recognized more easily.
As previously discussed, the type and orientation of the target in relation to the aircraft affects the intensity
displayed.
When the weather radar system is in either the Weather or Ground Map mode, the system automatically
switches to Standby mode upon landing.
Operation in Ground Map Mode
1) Select the MODE Softkey.
2) Select the GROUND Softkey to place the radar in Ground Map mode.
3) Select the BACK Softkey.
4) Press the FMS Knob to activate the cursor.
5) Turn the large FMS Knob to place the cursor in the TILT field.
6) Adjust the antenna tilt angle by turning the small FMS Knob to display ground returns at the desired distance.
7) Press the FMS Knob to remove the cursor.
190-00663-00 Rev. A
Ground Map
Mode Color
Black
Light blue
Yellow
Magenta
Blue
Table 6-4 Ground Target Return Intensity Levels
Garmin G1000 Pilot's Guide for the Hawker Beechcraft C90A/GT
Intensity
0 dB
> 0 dB to < 9 dB
9 dB to < 18 dB
18 dB to < 27 dB
27 dB and greater
HAZARD AVOIDANCE
6-49