JDC Electronic SA Geos 11 - Manual (Page 26)

button to select the direction of the adjustment ( increment,
decrement), then set the value in degree of the declination with the
help of the button. Keep the button down to confirm your setting,
release it, and then press it down again to exit the special menu.
IMPORTANT ! When a declination has been stored, all the display
modes of the compass will show true North and no longer the
magnetic North. Should you wish to display the magnetic North at
a later stage, you will need to reset the declination.
Variometer
Display
upper block: wind speed
large block : value
middle block: unit (here M .'' (metres per second)
lower block: default mode of the standard screen
+ compass heading
Operation
The Large block shows your speed. The value is positive, this corresponds
to the rate of ascent, whereas a negative value indicates a rate of descent.
There is a choice of two units: M .'' = m/s (metre per second) and hf. '
hft/min (100 feet per minute). To change the unit, select the middle block
(it flashes) and keep pressing the
button down; release the button
when the desired unit is displayed.
Finesse
Display
Finesse is the ratio between the horizontal velocity and vertical velocity.
It indicates the gliding performance of a paraglider or hang-glider.
This function is only of use to those individuals who practise
hang-gliding and paragliding.
Finesse is displayed as follows:
upper block: mean wind speed
large block : finesse
middle block:
indication
lower block: default mode (here relative pressure)
+ compass heading
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