Audio variometer: Compass Sound System (CSS)
The CSS is an advanced function made available by C-Pilot EVO. The variometer sound is surely
one of the most important features for a pilot. With C-Pilot EVO you can completely tune it to your
taste. You will be able to get the most out of the outstanding sensitivity of the C-Pilot PRO
variometer. There will be no screaming near base to annoy you or loss of sensitivity in weak
conditions. Here is how to create your own audio profile.
In the “setup” menu, press the “audio” button. The user interface allows a full control over the
variometer sound while being as intuitive as possible (Figure 23).
Figure 23: variometer sound setup
Frequency: one of the parameters that you can customise is the frequency of the sound: this can go
from 300 Hz to 3000 Hz depending on your vertical speed. The plot is divided in two sectors:
positive values (climbing) up to 12 m/s on the right and negative values (sinking) down to -6 m/s on
the left. The interval between the vertical grey lines is 1 m/s. Please note that the spacing between 0
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