Vor/Loc/Gs Test - Garmin CIRRUS PERSPECTIVE SR20 Line Maintenance Manual

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7. Repeat steps 5 and 6 and re‐transmit while monitoring GPS2 signal levels on the MFD.
8. Repeat steps 4 through 7 at the following frequencies:
121.175 MHz
•
121.200 MHz
•
131.250 MHz
•
131.275 MHz
•
131.300 MHz
•
9. Repeat steps 4 through 8 for the COM2 transceiver (GIA2).
10. On the MFD, select the fourth AUX page.
11. Change the COM channel spacing from 25 kHz to 8.33 kHz in the Com Config field.
12. Go back to the third AUX page.
13. Select 121.185 MHz on the COM1 and COM2 transceivers.
14. Transmit for 35 seconds while monitoring GPS1 signal strength levels.
15. During the transmit period, verify that the GPS'DR' or 'LOI' flags do not come into view
on the PFD HSI and verify on the MFD that GPS 1 does not lose 3D navigation.
16. Repeat steps 14 and 15 and re‐transmit while monitoring GPS2 signal levels on the MFD.
17. Repeat steps 14 through 16 at each of the following frequencies:
121.190 MHz
•
130.285 MHz
•
131.290 MHz
•
18. Repeat steps 14 through 17 for the COM2 transceiver (GIA2).
19. On the MFD select the fourth AUX page and change the COM channel spacing back to 25
kHz.
7.3.14 VOR/LOC/GS Test
Check the VOR, ILS, and Glideslope functions with ramp test equipment. Operate the
equipment according to the test equipment manufacturer's instructions. Adjust the RF signals
levels necessary to perform the test.
Cirrus Perspective™ Line Maintenance Manual
190-00920-00
Page 7-27
Rev. E