Garmin MX20 - Manual (Page 70)


Detailed Operation
Set Barometer
Use the Set Barometer option to enter the correct barometric pressure for your area or adjust the current value.
This option is best for making large changes. The BARO + and BARO - keys are more useful for minor correc-
tions. Use the UP/DOWN arrow keys to increase or decrease the values. Use the LEFt/RIGHt arrow keys to
move between characters. Press the ENtER
key to save the displayed barometric pressure.
A “Confirm Current Baro” message is displayed at the initial power-up and again once every 30 minutes of
operation as a reminder to check your baro setting.
TER Data Flag
The TER flag will appear if no terrain data is available for the advisory coverage area.
External TAWS-Based Terrain Display
The external TAWS-based Terrain feature shows terrain as provided by an external TAWS sensor when con-
nected to and configured to receive that data from either the KGP-560, Landmark 8000, or KMH 820.
When displaying external TAWS-based terrain, the external sensor determines the color coding and graphical
presentation of terrain in the proximity of the aircraft. See the Pilots Guide for the Honeywell KGP-560, L3
(Goodrich) Landmark, or KMH 820 for additional information on how to interpret this information.
NOTE: When the MX20 is configured for an external Terrain Awareness and Warning System
(TAWS), the “Alt” and “Baro” fields normally present on the Navigational Bar will not be
displayed.
TAWS Pop-Up Modes
The MX20 will detect TAWS based terrain alerts and will force a pop-up of the Terrain Function when re-
quired. Terrain based Pop-Ups have higher priority over traffic based pop-up functionality.
Terrain
Terrain Display of External TAWS-Based Data