DAVIS Weather Wizard III - Manual (Page 22)

Wind Speed and Wind Direction
Weather Wizard III Page 21
About Wind Direction
The compass rose is divided into 16 points, each corre-
sponding to a different compass point 22.5˚ apart. Wind
direction is indicated by a flashing arrow at one of these
points. The right side of the display expresses wind
direction in degree readings.
The right side of the display can be set to display Wind
Direction in either high (1˚ increments) or low (10˚
increments) resolution. Low resolution is probably the
most practical setting since even a relatively steady
wind has turbulence and rapidly changing speeds. Low
resolution gives you a general indication of wind direction—whether the wind
is blowing from a northerly or northeasterly direction, for example.
Under certain circumstances, however, the change in wind direction is as
important as the direction itself. Under these circumstances, the Weather Wiz-
ard III should be set to display in 1˚ increments. This change can be significant
if, for example, you are trimming the sails of your sailboat.
To Display Current Wind Speed and Wind Direction
1. To display wind speed, press WIND.
The current wind speed and the word SPEED appear on the display.
2. To display wind direction, press WIND again.
The current wind direction and the word DIRECTION appear on the display.
W IND D IRECTION AND W IND S PEED D ISPLAYS
To Change the Unit of Measure for Wind Speed
1. Press WIND once or twice as necessary to select wind speed.
2. Press UNITS until the desired unit of measure (MPH, KPH, KNOTS, M/S) appears in the
compass rose.
N
NE
SW
NW
SE
E W
S
M/S
C OMPASS R OSE
MPH
N
NE
SW
NW
SE
E W
S
DIRECTION
MPH
N
NE
SW
NW
SE
E W
S SPEED
Wind Direction: 135˚ (SE) Wind Speed: 15 mph