Nexus FDX-kit, Инструкция по установке и эксплуатации

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English NexusRace SW
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7.2.4 Wind calibration
Offset
Offset is the start value for the wind speed and it could be described as the friction.
Normally this value is about 0,5 m/s and it will be constant at all wind speeds.
Gain
Gain is the calibration value for the wind speed and has to do with the shape of the
propeller. The percentage is the value the measured wind speed will increased with.
As an example: measured speed is 10 m/s and the Correction is 70%, the corrected
speed will be 17 m/s (10 x 1,70)
For two blade propellers, the calibration value is 50%
For three blade propellers, the calibration value is 70%
Down wind correction
NOTE if you have a nWind Race transducer you should not use the Down Wind
Correction. Instead use the tables for TWS.
Normally the apparent wind speed increases when you are sailing downwind. That has
to do with the fact that the wind has to pass the sails which the wind see as an
obstacle. If you enter 85% the wind speed will be decreased with 15% at 180 degree
and half of it (7.5%) at 135 degree. At 90 degree there will be no downwind correction.
Tick the box and enter the value for down wind correction.