Manual
12 - User and Installation Manual
AvMap Ultra EFIS
User and Installation Manual - 13
AvMap Ultra EFIS
rose.
Set the aircraft in level and straight ight attitude by using jacks or blocks.
Let the system stabilize for about 30 seconds and make sure that the aircraft is not moving.
Then conrm by pressing “NEXT”.
Note: The calibration calculation for south direction will start and a counter will inform of the
progress.
STEP 5: Calibration calculation for west direction
The Ultra display shows: “Point to WEST. Press NEXT when ready”.
Have the aircraft nose pointed to the magnetic west (270°) radial on the airport compass
rose.
Set the aircraft in level and straight ight attitude by using jacks or blocks.
Let the system stabilize for about 30 seconds and make sure that the aircraft is not moving.
Then conrm by pressing “NEXT”.
Note: The calibration calculation for west direction will start and a counter will inform of the
progress.
STEP 6: Check compass calibration
At the end of the calibration process the Ultra will conrm if the magnetometer is calibrated
successfully.
The message “Calibration done” will pop up.
Note: In the SETUP page after COM 1 will be written “ENABLED MAG”.
IMPORTANT: Don’t power off the system. Let the system stabilize for about 15 minutes
before moving the aircraft.
Note: In the “SETUP” menu you can choose to display compass heading in reference to
magnetic north or true north (see chapter 4).
Note: If the calibration fails or the compass indicator is not enabled, repeat the calibration
procedure. If several calibration attempts fails review the installation location of the
Ultra. Magnetic disturbance could be too high in the area selected.