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The NAV receivers monitor the selected VOR stations and provide enroute and terminal
area navigation. The VOR data is displayed on the pilots and copilots PFD and MFD.
In LOC and GS modes, the NAV receivers supply final approach guidance data. Localizer
signals are monitored for horizontal deviation and glideslope signals are monitored for
vertical deviation. When the the navigation receiver is tuned to a localizer frequency, the
paired glideslope frequency is automatically tuned. The LOC/GS data is displayed on the
pilots and copilots PFD and MFD.
The Marker Beacon system provides information on distance to the runway. The MB
antennas receive signals from the outer, middle and inner MB ground transmitters. The
signals are then supplied to the MB receivers. MB information is displayed on the pilots and
copilots PFD. MB sensitivity can be adjusted at the radio tuning units.
The VHF/NAV system also supplies VOR/LOC and MB station identification to the audio
integrating system.
Vol. 1 18--30--2
NAVIGATION SYSTEMS
VHF Navigation Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
VHF/NAV System
Figure 18---30---1
VOR/LOC
RECEIVER
GLIDESLOPE
RECEIVER
MARKER
RECEIVER
VOR/LOC
ANT COUPLER
VOR ANTENNA
RTU
STBY TUNE
CONTROL
UNIT
GLIDESLOPE ANTENNA
MARKER ANTENNA
VHF/NAV RECEIVER
VOR BEARING
LOC DEVIATION
GS DEVIATION
MARKER AUDIO
MARKER VISUAL
NO. 1
SYSTEM
ONLY
Vol. 1 18--30--3
NAVIGATION SYSTEMS
VHF Navigation REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
VHF Navigation --- Radio Tuning Unit <1012>
Figure 18---30---2
NAV Key
Push key once to directly
tune active frequency
with tuning knobs.
Push key twice to select
NAV main page.
Radio Tuning Unit -- Top Level Page
Center Pedestal
Radio Tuning Unit -- NAV Main Page
Center Pedestal
NAV Frequency Readout (green)
MKR SENS Key
Used to select marker
sensitivity high or low.
Selected setting is
displayed in cyan.
MK--HI Indicator
Displayed when marker
sensitivity is selected
high.
AUT Indicator
Displayed when
automatic tuning of the
navigation radios is
selected on the FMS.
NAV Frequency Readout (green)
TUNING
KNOB
TUNING
WINDOW
Vol. 1 18--30--4
NAVIGATION SYSTEMS
VHF Navigation Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
VHF Navigation < 2040>
Figure 18---30---3
1 -- MKR -- 2
Press to monitor
marker beacon signals.
When lit, rotate to
increase volume.
Press again to deselect
marker beacon signals.
Audio Control Panel
Center Pedestal
Display Control Panel
Pilot’s and Copilot’s Side Panels
BRG
Used to select next
waypoint that
bearing pointer will
indicate direction to.
BRG FORMAT RANGE
TFC
SOURCE
NAV
RDR / TERR
1 -- NAV -- 2
Press to monitor
navigation receiver.
When lit, rotate to
increase volume.
Press again to
deselect navigation
receiver audio.
NAV SOURCE
Used to select navigation source.
Clockwise rotation will be FMS1,
VOR/LOC1, OFF, VOR/LOC2 and
FMS2.
PUSH X--SIDE
Used to display
opposite side
navigational
source on MFD.
Vol. 1 18--30--5
NAVIGATION SYSTEMS
VHF Navigation REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
VHF Navigation Bearing Source<1015>
Figure 18---30---4
Primary Flight Display
Pilot’s and Copilot’s Instrument Panels
Multifunction Display -- HSI Mode
Pilot’s and Copilot’s Instrument Panels
Bearing Pointers
Indicates direction of
selected bearing.
Single line (bearing No. 1)
is magenta. Double line
(bearing No. 2) is cyan.
Bearing Source
Indicates navigation source
selected to obtain bearings.
Single line (bearing No. 1)
is magenta. Double line
(bearing No. 2) is cyan.
Vol. 1 18--30--6
NAVIGATION SYSTEMS
VHF Navigation Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
VHF Navigation Deviation/Source Indication<1015>
Figure 18---30---5
Navigation Source
Indicator
Indicates navigation
source setting of
navigation source knob
on display control panel.
Primary Flight Display
Pilot’s and Copilot’s Instrument Panels
Multifunction Display -- HSI Mode
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