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wind dir.
4-1
reference mark
latitude
longitude

sets the referece mark in the current position

sets the referece mark in the map center position
type
angle 1-2 (triangle, trapezoid)
rate 1-2/4-1 (trapezoid)
rate 2-3/4-1 (trapezoid)
rate 3-5/4-1 (trapezoid)
magnetic declination
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