Garmin gns 500w Manuale Utente

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9 - AUX PAGES
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190-00356-00 Rev E
The following setup items are available: 
Display— allows you to adjust the display for 
optimum viewing in any condition. Automatic back-
lighting is available which uses a built-in photocell 
(at the top left corner of the display bezel) to make 
the proper display adjustments without any user 
intervention. Automatic contrast adjustment varies 
the screen contrast level based upon current unit 
temperature. You may also select manual control of 
the display contrast and backlighting to tailor the 
400W-series unit display to your needs. 
 
NOTE: Display backlighting changes are not 
saved when the 400W-series unit is turned off. 
Backlighting will revert to the “Auto” setting the 
next time the unit is turned on. 
Nearest Airport Criteria— defines the minimum 
runway length and surface type used when deter-
mining the 25 nearest airports to display on the 
nearest airport page. A minimum runway length 
and/or surface type may be entered to prevent air-
ports with small runways, or runways that are not 
of appropriate surface, from being displayed. The 
default settings are “0 feet (or meters)” for runway 
length and “any” for runway surface type. 
SBAS Selection— selects the Space Based Aug-
mentation System (SBAS) used for navigation and 
allows turning WAAS on and off. 
COM Configuration— allows you to select 8.33 
kHz or 25.0 kHz COM frequency channel spacing. 
 
NOTE: 8.33 kHz VHF communication frequency 
channel spacing is not approved for use in the 
United States. Select the 25.0 kHz channel spac-
ing option. 
To set the COM channel spacing: 
1.   Select “COM Configuration” and press ENT. 
2.   Turn the small right knob to select “8.33 kHz” 
or “25.0 kHz” and press ENT. 
Preset Com Frequencies
On units configured for COM Frequency Presets 
you may store up to 15 preset Com frequencies in the 
Com Configuration page. On units configured with a 
remote Com frequency recall switch, these preset fre-
quencies can be loaded into the STBY frequency with 
the press of a button. 
 
NOTE:  Preset Com Frequencies are only available 
with SW Version 3.00, or later. 
To store a  preset Com frequency: 
 1.  Select “COM Configuration” from the Setup 2 
Page. 
2.  The flashing cursor will highlight the Channel 
Spacing field. Turn the large right knob to 
highlight the left (non-decimal) part of the first 
frequency field. 
3.   Turn the small right knob to select the desired 
frequency. 
Setup 2