Garmin 500W Series Manual

A SERVICE OF

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5 - PROCEDURES

105

190-00357-00 Rev C

ILS Approach

GNS 530W only

2

NM

15

NM

1.2

NM

1.2

NM

MANUAL

FAF

VLOC

VLOC

GPS

GPS

Auto Switch to VLOC

within this area

The GNS 530W can be set to automatically switch

theexternalCDIoutputfromGPStoVLOCasyou

intercept the ﬁnal approach course (if used with a

KAP140/KFC225 autopilot, you will need to manually

enable outputs). When the ILS approach is activated

(andthecorrectILSfrequencyisactiveintheVLOC

window), the GNS 530W automatically switches

within 1.2 nautical miles left or right of the ﬁnal

approach course. This switch can take place anywhere

from 2.0 to 15.0 nautical miles from the FAF.

The illustration above shows both multiple loca-

tionsalongtheapproachpathandtheCDIselection

thatyoucanexpect:GPSorVLOC.Withinthearea

of the shaded box, the automatic switch from GPS to

VLOCshouldoccur.

NOTE: If you attempt to intercept the approach course

at a distance less than 2.0 nautical miles from the FAF,

the GNS 530W does not automatically switch the CDI

to VLOC. In this case, press the CDI key to manually

switch from GPS to VLOC.

TheautomaticswitchfromGPStoVLOCisnot

immediate, but instead occurs gradually to prevent

abruptCDIchangeswhencoupledtoanautopilot. The

CDIselectioncanalsobechangedmanuallybypress-

ing the CDIkey.OncetheswitchfromGPStoVLOC

has occured, either automatically or manually, it does

not automatically switch again until the approach is

reactivated or another approach is selected. To prevent

automaticILSCDIselection,choosethe“Manual”ILS

CDIsetting(thefactorydefaultsettingis“Auto”,which

enablestheautomaticswitchtoVLOC)-seeAUX

- Setup 1.

Within the shaded area of the previous run-

way illustration, the GNS 530W automatically

switches the external CDI to the GNS 530W’s

internal VLOC receiver. “VLOC” appears

above the CDI key.