Weather Ground Checks - Garmin GI 275 Installation Manual

6.3.5

Weather Ground Checks

6.3.5.1 FIS-B Weather (ADS-B In)
This check is required for units intending to display weather on an HSI or HSI/Standby ADI with
Enhanced HSI page or on an MFD or MFD/Standby ADI with FIS-B Weather page only if a compatible
ADS-B traffic source (GTX 345, GTS ADS-B, GNX 375) is configured.
NOTE
The following steps may be performed as a ground check as long as the aircraft is within
range of an FAA ground station. If this is not the case, it is recommended that these checks
be performed in-flight within range of an FAA ground station.
1. Power on the GI 275 system in Normal mode.
2. Verify the GPS navigator and GDL 69/69A are in Normal mode.
3. Allow up to 5 minutes for the GPS navigator to obtain a position.
4. HSI: Navigate to the HSI Map page (turn the outer knob).
MFD: Navigate to the FIS-B Weather page (Menu → Select Page → Weather or turn the outer
knob).
5. Verify there are no warnings displayed.
6. MFD: Press the knob until the menu displays, touch FIS-B WX Options → Layers and then
select several FIS-B weather products to display.
NOTE
It may take up to 10 minutes after power-on for the system to begin receiving FIS-B
weather products.
7. MFD: Verify at least one of the selected products displays a valid time stamp by selecting the
Time Stamps button on the bottom of the display.
8. Verify there are no status fail messages regarding FIS-B weather.
6.3.5.2 GDL 69 Series Weather
This check is required for units intending to display weather on an HSI or HSI/Standby ADI with
Enhanced HSI page or on an MFD or MFD/Standby ADI with the SXM Weather page only if a GDL 69/
69A is configured and a valid Sirius XM subscription is obtained.
This procedure does not activate the GDL 69 series XM data link radio. The instructions for activating the
GDL 69 series XM data link radio can be found in GDL 69 Series SiriusXM Satellite Radio Activation
Instructions (P/N 190-00355-04).
1. Position the aircraft where there is a clear view of the southeastern or southwestern sky (XM
Satellite Radio satellites are located above the equator over the eastern and western coasts of the
continental United States).
2. Power on the GI 275 system in Normal mode.
3. Verify the GPS navigator and GDL 69/69A are in Normal mode.
4. Allow up to 5 minutes for the GPS navigator to obtain a position and the GDL 69/69A to obtain
data.
190-02246-10
Rev. 11
GI 275 Part 23 AML STC Installation Manual
Page 6-13