Digifly AIR-BT - Page 41

AIR_Manual_506a_ENG_rev_1.pdf Page 41/96
Important notes
:
i) Use only microSD cards formatted FAT32, class 10 with at least 8GB and up to 32GB.
ii) Insert the microSD card with the instrument turned OFF then turn it on, holding down the power key, in
order to verify that the SD card is working correctly. The possible messages are: “Micro SD: OK / NONE /
ERROR!” In case of error, turn the instrument off, remove the card and try it again.
Digital elevation map selection is automatic: if AGL altimeter or TERRAIN Layer are enabled, as soon as the GPS
acquires coverage, the AIR will do an automatic search among the maps available on the microSD card and it
will choose the one matching its current position. If you have created adjacent maps, it will also automatically
connect these, even when you are in flight!
b)
set the “Elevation Mode” parameter
MAIN SETUP \ n. 19 ELVM = 2
(suggested setting).
It defines displaying or not displaying the topography
ELVM=0: (default) = AGL altimeter disabled and Terrain Map layer disabled
ELVM=1: AGL altimeter enabled and Terrain Map layer disabled
ELVM=2: AGL altimeter enabled and Terrain Map layer enabled showing only elevations above the GPS altitude
ELVM=3: AGL altimeter enabled and Terrain Map layer enabled and it shows ALL elevations
c)
set the parameter "Elevation base height"
MAIN SETUP \ n. 20 ELVB
:
It sets the height basis of the Terrain Map’s grayscale when ELVM is set to 3 (all elevations displayed).
In this way, you get the most out of the of 10 shades of gray color range the map uses (each shade is called a
“step”), corresponding to 10 elevation contour lines.
d)
set the parameter "Elevation step"
MAIN SETUP\ n. 21 ELVS
:
It sets the value in meters of each elevation step with a different gray scale of the Terrain Map.
From 10 to 1000m (default value 100m).
 Terrain Map setting examples:
When using the Terrain Map, we can define the minimum height at which the TERRAIN elevations are displayed
MAIN SETUP\ n. 20 ELVB
and the height corresponding to each individual step
MAIN SETUP\ n. 21 ELVS
.
For example, in the Fiemme Valley (Italy) with the valley floor at 1,000m (approx. 3,300ft) and maximum peaks
at 3,250m (approx. 10,700ft) I can set my ELVB height at min=1,000m and ELVS step at =200m and the map
will show the contour lines from 1000m up to 3000m.
 N.B. The Terrain Elevation Map is
not
displayed when the map’s side is larger than 100km (62mi), when using a
240x240pixels map, or if larger than 50km (31mi), if using a 120x120 pixel map.
 N.B. It is possible to interrupt the Terrain Elevation Map’s drawing by pressing the or buttons.
 N.B. The Terrain Elevation Map is
not
displayed when the Navigation layer is set to “NAV photo task” (see 6.17.2
for more details).