Download WTP3 User Manual - A and T Instruments

Settings
The settings dialogue controls all the normal items required to
setup the WTP3.
mast_height
Used for wind calculations involving the rate gyros. This should be set to
the distance from the waterline to the masthead sensor in feet.
leeway_cal
Leeway calibration value. A value between 8 and 13 is usually appropriate
for most modern boats.
heel_enable
Should be set to 1 if you have a heel sensor and 0 if you do not. A heel
sensor is highly recommended to achieve accurate wind data.
gyro_enable
Determines whether or not the system uses data from the rate gyro
sensors to correct wind calculations. 1=use gyro data, 0=do not use gyro
data. Normally there is no reason to disable this function.
variation
Magnetic variation. This is calculated automatically using data from the
GPS. If the GPS is not providing this information it can be entered here.
It will be overwritten by GPS information if it becomes available. Enter a
positive value for East variation, negative for West.
dsp_time, dsp_up_ang, dsp_dn_ang
All refer to the switching of variables on displays according to either
point of sailing or over time if this is specified in userout.d: see Data Files
for more information). The dsp_time is the frequency with which the
displays alternate between showing different variables, units here are
1/10th second; dsp_up_ang is the angle for the change between upwind
and reaching settings; dsp_dn_ang is the angle for the change between
reaching and downwind settings.
TWS_factor
Will reduce or adjust wind speed by multiplying by this factor; this is used as an adjustment for wind weight.
mast_rot
Allows the option of using data from a mast rotation sensor. Available settings are 0 (off ), 1 (on, using absolute
value e.g. for Mast Twist calculations) or 2 (on, using +/- for fully rotating masts).
3D_Enable
This value is not used in WTP3, it is retained in the settings list to support legacy file sets. The 3D enable/disable
is done automatically by WTP3 based on compass type, it can be overridden in the compassX.d files.
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