Operation Manual

LX90xx system Version 4.0 February 2014
Page 99 of 151
Press button MEM 1 for a long time. A message “Options stored to memory (1)” will be
displayed and the settings are stored. Change the settings a little bit. Press button MEM 2
for long time. A message “Options stored to memory (2)” will be displayed and the settings
are stored to memory location 2. Now short pressing of MEM 1 will invoke the saved
settings from memory 1.
6.5.6.4 Wind
The main display unit constantly calculates winds using four different methods. Speed
difference method is used during circling and is taking into account ground speed
difference in a single circle. Position drift is calculating wind based on position drift during
circling. A minimum of three circles must be completed to obtain the first wind
measurements. The third method is combination, which takes into account also airspeed
received from the vario unit.
If the compass module is available wind is also estimated using the wind triangle.
Calculated wind is stored in layers. Layer height is 300 m or 1000 ft and cannot be modified
by the user.
The wind profile is shown on the left side of the dialogue. Yellow coloured altitude indicates
our current MSL altitude. Using the ZOOM selector knob you can scroll up and down
through the wind layers.
Use the EDIT button to manually enter wind data. If a new wind direction is entered all
wind directions in range from start altitude to end altitude will be modified. The same
procedure is used for wind speed.