400/500 Series Garmin Optional Displays

NOTE: It is recommended that the pilot turn the Auto Request function ‘on’ by setting
it to ‘10 min’ updates. This setting provides best performance for the GDL 49.
There is no Auto Request function for GDL 69. Instead, weather data is updated automatically as it
becomes available from XM. For NEXRAD, this occurs every five minutes; for METARs, this occurs
every twelve minutes.
Manual Send?(GDL 49) / Request Update? (GDL 69) — This field is used to request NEXRAD
Data.
1. Select the desired field and enter the appropriate data.
2. Select ‘Manual Send?’ or ‘Auto Request’ and press ENT. The request has been sent. Note that
selecting ‘Auto Request’ and pressing ENT will not send the request until after the auto time
period.
3. To exit from the NEXRAD Request Page, press CRSR. The Data Link Page is displayed.
To request NEXRAD data from the Map Page:
1. Select the Map Page.
2. Press MENU. The Map Page Options Menu is displayed.
3. Select ‘Request NEXRAD?’ and press ENT. The NEXRAD Request Page is displayed defaulting
to the following fields:
4. Change the request parameters as desired.
5. Highlight ‘Manual Send?’ for the GDL 49, or ‘Request Update?’ for GDL 69, and press ENT.
Once the request has been sent, the statement ‘MSG Queued’ is momentarily displayed.
6. To exit from the NEXRAD Request Page, press CRSR.
NOTE: The pilot may also use the map panning function to request NEXRAD data at a specific map
position. After panning and selecting a position on the map, the pilot can press the MENU key and
request the NEXRAD data.
Section 3
NEXRAD Operation
Requesting NEXRAD data from the Map Page.
The NEXRAD Request Page. The GDL 49 version
shown displays the AUTO REQ field.
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