Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual
190-01112-10
Rev. 21
Page 211
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GPS LPV displayed in magenta located in the top center of the rotating compass rose.
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A lateral deviation indicator displayed in magenta.
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A to/From indicator displayed in magenta.
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A cyan bearing pointer. (Bearing Pointer may need to be activated on the HSI Menu)
6.
Repeat using GPS2 as the navigation source (if interfaced).
6.3.8.9 GPS Receiver COM Interference Check
This test must be conducted outside, as the use of a GPS repeater inside a hangar may result in a failed
test.
1.
Apply power to the aircraft and aircraft systems and allow the aircraft systems to initialize and the
G5(s) or GPS navigator (if installed) to acquire sufficient satellites for a GPS solution.
NOTE
For G5’s interfaced to a GPS navigator for position source access to the G5(s) configuration
page is not necessary. Monitoring the G5 Attitude and/or G5 HSI for a loss of GPS information
or amber LOI on the HSI is sufficient.
For G5’s interfaced to a GPS antenna:
2.
Enter configuration mode on the G5 Attitude indicator and the G5 HSI if the optional GPS
antenna is interfaced, and navigate to the GPS Configuration Page.
3.
Ensure a valid GPS position fix is obtained by monitoring the GPS status. The following status
indications are valid fixes for this test.
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3D GPS
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3D DIFFERENTIAL
4.
Select 121.150 MHz on the COM transceiver.
5.
Transmit for a period of 30 seconds while monitoring the GPS status.
6.
During the transmit period,
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On G5(s) with a direct GPS antenna connected, verify that the GPS status does not lose a
valid GPS position fix.
•
On G5(s) interfaced to a GPS navigator for position source monitor the G5 Attitude
indicator and/or G5 HSI for a loss of GPS information (ground speed information) or amber
LOI on the HSI.
7.
Repeat steps 2 through 4 for the following frequencies:
•
121.175 MHz
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121.200 MHz
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131.250 MHz
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131.275 MHz
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131.300 MHz
