Honda ARX1500T3DX Owner's Manual page 95

If the receiver loses a position fix (because of
a large obstacle nearby or overhead), the
compass direction indicator will disappear as
shown in the illustration and the antenna
mark (2) will flash.
(2)
(2) antenna mark
Compass Direction Indicator
If the receiver reacquires a position fix, the
compass direction indicator (3) will appear as
shown in the illustration.
(3)
(3) compass direction indicator
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GPScape System