Compass And Phone Basics; Phone Directions - Nokia NPL-4 Series Manual

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Compass and phone basics

Phone directions

Directions with phone on this document is mentioned on Figure 23 Directions through
phone.
Sensible use of compass function means that phone (and 2-axis magnetometer) is accu-
rately in horizontal level. This is done with internal builder level (air bubble) on phone.
Measured and displayed numerical compass heading is angle between TOP direction and
geographical north direction. Numerical values are part of 1/360 of full round circle.
Compass rose point graphical difference of TOP direction and geographical north direc-
tion (with declination angle). TOP direction is direction on users motion.
Builder level (air bubble)
LEFT
Copyright © 2005 Nokia Corporation. All rights reserved.
Issue 2 05/05
Figure 21: Directions Through Phone
TOP
BOTTO
System Module and User Interface
Magnetic north
Geographical north
RIGHT
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