Garmin GNS 400W GPS Receiver User Manual


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APPENDIX C
Troubleshooting Q & A
216
190-00357-00 Rev E
How do I skip a waypoint in an approach, departure,
or arrival?
The 500W-series unit allows you to manually select
any approach, departure or arrival leg as the active leg of
your flight plan. This procedure is performed from the
Active Flight Plan Page by highlighting the desired way-
point and pressing the direct-to key twice, then ENT to
approve the selection (see illustration left). The GPS then
provides navigation along the selected flight plan leg, so
ensure that you have clearance to that position. See Section
4 - Flight Plans - Flight Plan Options for more information.
NOTE: If activating a leg while on the From side,
sequencing will be suspended as indicated with
the SUSP annunciation shown above the OBS
key.
How do I fly the GPS with an autopilot and DG head-
ing bug?
If you do not have an HSI, you should make your
courseselectionsontheexternalCDI’sOBS knob and the
DGheading bug.
When does turn anticipation begin, and what bank
angle is expected?
The 500W-series unit smooths adjacent leg transitions
based upon a nominal 15º bank angle (with the ability to
increase the bank angle up to 30º) and provide three pilot
cues for turn anticipation:
1) A waypoint alert (“Left or Right to ###° in xx sec”)
flashes in the lower right corner of the screen 10
seconds before the turn point.
2) A flashing turn advisory (“Left or Right to ###° now”)
appears in the lower right corner of the screen when
you are to begin the turn. Set the HSI to the next
DTKvalueandbegintheturn.
3)TheTo/FromindicatorontheHSI(orCDI)ips
momentarily to indicate that you have crossed the
midpoint of the turn. For more information on
waypoint alerts and turn advisories, see Section 5.
When does the CDI scale change and what does it
change to?
TheCDIscaleis1.0NM(terminalmode)within31
NMofthedepartureairport.TheCDIwillsmoothlyscale
to 2.0 NM (en route mode) once beyond 31 NM from the
departure airport.
TheunitbeginsasmoothCDIscaletransitionfromthe
2.0 NM (en route mode) to the 1.0 NM (terminal mode)
scale within 31 NM from the destination airport. When
within 45° of the final approach course and the FAF is
the TO waypoint, the 500W-series unit switches from ter-
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