Spectra Precision MobileMapper 20 - Manual (Page 29)

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E-Compass Calibration
• Press on the Windows key.
• Scroll down until you see the Compass icon.
• Tap on the Compass icon to open the Compass utility.
• Tap on the Calibration tab.
• Put the receiver down on a table to give it a horizontal
position (see picture [1] below).
• Tap on the Start button located in the task bar to start the
calibration process.
First horizontal calibration is ready to go.
• Slowly rotate the receiver by a couple of turns while
keeping it horizontal (see picture [1] below).
Wait until the receiver indicates that horizontal calibration
is complete and prompts you to start vertical calibration
(“Ready” displayed underneath the Vertical calibration
button).
• Take the receiver in your hands (see picture [2] below),
put it in vertical position then slowly rotate it by a couple
of turns, in the vertical plane. Then gently put it back
down on the table.
• Wait until calibration is complete before proceeding.
[1] [2]