Setting the Magnetic Declination
True north, magnetic north, and magnetic declination
There are two geographical terms representing north; true north and magnetic north.
❏
True north (1)
This is the north shown on maps.
❏
Magnetic north (2)
This is the north indicated by a compass needle.
Magnetic north points in a direction slightly off from true north. This angle is known as the "magnetic declination"
(3).
1
2
3
West (-)
East (+)
At the time of purchase, the angle of deviation for the watch is set to 7 degrees west (-7 degrees), and indicates true
north in Japan approximately. The magnetic declination differs for each region. You need to set magnetic declination
if you want to check the north in your travel destination.
To display magnetic north rather than true north, set the magnetic declination to 0 degrees.
Setting automatically
By performing Reference Value Setting (receiving GPS satellite signals), you can automatically set the magnetic
declination so that it points to true north.
U
“About the Reference Value Setting” on page 121
MB73 (TR-MB7) User’s Guide
Compass Measurements (COM)
91
Summary of Contents for Trume TR-MB7
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