Turnpoint Size
The default turnpoint cylinder size is set in this menu. The size of the cylinder can be changed by scrolling
through the numbers using the UP and DOWN keys. Pressing ENTER moves to the next digit. This
value is used as the default cylinder size during task creation (see Section
4.1.1
).
Datum
Two datum models can be set on the LIVE SD . Options available are WGS 84 and FAI sphere. At the
start of any competition, be sure to check what Datum is used by the scoring system to ensure that the
correct distances are being reported.
4.10.17 Airspace settings
Figure 4.40: Airspace Settings
This menu allows the user to dene certain parameters related with airspaces. Each of the parameters
can be changed using UP, and DOWN, keys. Pressing the ENTER key conrms the value and jumps to
next parameter. Changes can be undone by pressing the MENU key. As shown in Figure
4.40
there are 5
parameters related to the airspace which are explained in Table
4.13
.
Table 4.13: Airspace Menu Settings
Function
Description
CTR dist. Th
Minimum horizontal distance that a pilot can be from an
airspace without triggering an airspace warning. If this thresh-
old is passed a warning is emitted (event).
CTR alt. Th
Minimum vertical distance that a pilot can be from an airspace
without triggering an airspace warning. If this threshold is passed
a warning is emitted (event).
Ref. altitude
The Ref. Altitude parameter allows the user to dene the altitude
that is used to evaluate the airspace's proximity. The parameter
can be set to:
GPS Altitude - Altitude given by the GPS;
Altitude - Barometric altitude;
Flight Level - Barometric altitude expressed in hundreds
of feet and computed assuming an International standard
sea-level pressure datum of 1013.25 hPa (QNH).
Continued on next page
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