Garmin GTP 59 GPS Receiver User Manual


 
G3X Installation Manual – Post Installation Checkout and Calibration Procedures Page 8-25
190-01115-01 Revision A
NOTE
The Magnetometer Calibration Procedure must consistently report “CALIBRATION
SUCCESSFUL / SITE IS CLEAN” in both the clockwise and counter-clockwise
directions for the site to be considered acceptable. More than one failure out of ten
attempts in a given direction would be sufficient reason to conclude the site is not
acceptable.
A site that is used repeatedly to perform the Magnetometer Calibration Procedure should be re-evaluated
every 12 months, and after any significant construction or placement of magnetic objects (above or below
ground) within 50 meters of the location.