Garmin gns 500w Manuale Utente

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8 - VLOC RECEIVER
152
190-00356-00 Rev E
Auto-tuning / CDI Key
8.    For  precision  approaches  and  some  non-
precision approaches, a reminder window will 
appear indicating that GPS guidance on such 
approaches is strictly for monitoring only—use 
the VLOC receivers and external CDI (or HSI) for 
primary navigation. To confirm this reminder, 
highlight “Yes?” and press ENT
CDI Key
The GNS 430W’s CDI key is used to couple the 
GPS or VLOC receiver to the external CDI (or HSI).
When the external CDI (or HSI) is being driven by
the GPS receiver, “GPS” will appear at the bottom left 
corner of the page, directly above the CDI key. When 
the external CDI (or HSI) is being driven by the VLOC
receiver, “VLOC” will appear instead.
To couple the external CDI (or HSI) to the GPS 
receiver or VLOC receiver, press the CDI key to 
display “GPS” or “VLOC”, as desired. 
 
NOTE: The external CDI (or HSI) must be coupled 
to the VLOC receiver for approaches which are 
not approved for GPS. See the ILS example in the 
Procedures section. 
 
NOTE:  GPS level of service annunciations (LPV, 
ENR, etc.) are not applicable to the external CDI 
(or HSI) when VLOC is active. 
GNS 430W Only