Declination Angles East Of True North Are Subtracted From 0 To; Get True North; Declination Angles West Of True North Are Added To 0 To Get - Campbell 05103 Instruction Manual

Appendix A. Wind Direction Sensor Orientation
FIGURE A-2. Declination angles east of True North are subtracted
from 0 to get True North
FIGURE A-3. Declination angles west of True North are added to 0 to

get True North

A-3