How is the wind speed calculated?
Wind speed is determined by counting pulses over a sample period. The sample period is 2.25 seconds. The number of pulses per sample period is equal to the wind speed in MPH. If you wish to display the wind speed in other units, such as meters per second, kilometers per hour or knots, multiply the MPH by the conversion factor as follows: 1 MPH = 1.6093 kph = 0.4470 m/sec = 0.8690 knots.
