Altair Glide Computer and Navigation System Owner's Manual download pdf (Page 15)

2 SYSTEM FUNCTIONS

2.3 Brightness adjustment

The brightness of the LCD screen is adjustable via a backlight, and can be software controlled from

the menu system in XCSoar from the menu:

DISP . Brightness Adjust

This allows the automatic backlight to be enabled or disabled, as well as manual adjustment and

bias of the automatic backlight. When automatic backlight is enabled, the brightness ﬁeld adjusts

the automatic backlight system; otherwise the brightness ﬁeld adjusts the backlight directly.

The purpose of the adjustment in automatic backlight mode is to help the system adapt to the pilot’s

preferences.

that the LCD backlight which is controlled by the brightness adjustment, has a signiﬁcant

effect on power consumption. It is recommended that if needing to conserve battery, to turn

brightness up to the lowest level at which it is comfortable.

For Altair Pro systems, the maximum brightness is limited when using backup battery in order to

extend the duration that Altair can operate.

2.4 Data link

Three data links are available in Altair. Two external serial ports are located at the main connector.

The primary serial port (COM1) is used to connect to an external GPS source, intelligent variome-

ter, or FLARM. The secondary serial port (COM2) can be connected to a slave Altair device or an

alternative GPS or VARIO device. A third serial port (COM3) is reserved for the Altair ﬂight recorder

unit.

Recommended serial settings in XCSoar for Altair Pro and Vega installations are to use the Altair

ﬂight recorder unit as the primary GPS source, and Vega/FLARM as the secondary source:

• Device A Device Altair RU

• Device A Port COM3

• Device A Speed 57600

• Device B Device Vega

• Device B Port COM1

• Device B Speed 38400

Recommended serial settings in XCSoar for Altair Standard and Vega installations are to use Veg-

a/FLARM as the primary data source:

Altair Owner’s Manual • ALTAIR-EN 8

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Altair Glide Computer and Navigation System Owner's Manual Page 15