Deselect Navaid Function - Thales FMGS Pilot's Manual

MULTI PHASE
42 NAVIGATION management & monitoring

DESELECT NAVAID function

If a navaid is reported as unreliable
or unserviceable, it should be
deselected on the SELECTED
NAVAIDS page:
NAVAID ident [1R] ......... Enter
Ex: LMG.
The entered navaid is deselected,
and can no longer be auto-tuned for
display or computation of position.
In this example LMG is removed
from list of auto-tuned navaids, and
replaced by next available VOR DME,
CNA in [1L & 2L].
It may however be manually tuned
by pilot entry on RAD NAV page or
by RMP.
Brackets appear [2R] enabling
another navaid to be deselected.
Up to 6 navaids may be deselected
in this way.
Ex: LMG, SFD, RBT, DPE, CAN.
A deselected navaid may be restored
by:
− using CLR function,
− or overwriting with another navaid
to be deselected.
In this example deselection of CNA is
cancelled by CLR function; CNA is
again auto-tuned for display and
position computation, shown in [1L &
2L].
Navaid deselections are cleared
when FMGC phase switches to
DONE, or if second NAVdb is
activated.
J43126AA 00
VOR/DME AUTO
<LMG
VOR/DME
<AGN
VOR/DME
<MEN
ILS
<IRR
DESELECT
{GPS
<RETURN
LMG
VOR/DME AUTO
<CNA
VOR/DME
<CNA
VOR/DME
<BMC
ILS
<IRR
DESELECT
{GPS
<RETURN
VOR/DME AUTO
<BMC
VOR/DME
<BMC
VOR/DME
<AGN
ILS
<IRR
DESELECT
{GPS
<RETURN
VOR/DME AUTO
<CNA
VOR/DME
<CNA
VOR/DME
<MEN
ILS
<IRR
DESELECT
{GPS
<RETURN
© THALES AVIONICS S.A.
SELECTED NAVAIDS
DESELECT
114.50 [
114.80
115.30
AUTO
110.30
SELECTED NAVAIDS
DESELECT
114.65 LMG
114.65 [
113.75
AUTO
110.30
SELECTED NAVAIDS
DESELECT
113.75 LMG
113.75 SFD
114.80 RBT
AUTO
110.30 DPE
CNA
[
CLR
SELECTED NAVAIDS
DESELECT
114.65 LMG
114.65 SFD
113.75 RBT
AUTO
110.30 DPE
[ ]*
AIRBUS A318/319/320/321
]*
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