Garmin GPS GNS 430W, GPS 400W, GPS GNC 420AW, GPS GNS 430AW, GPS GNC 420W User Manual
400W Series
Quick
Reference
OBS
Key
Power and Com
Volume/Squelch
Photocell
for AutoDimming
Graphic Moving
Map Display and
Navigation Info
Procedure Key
Range Keys
Enter Key
Direct-To Key
Menu Key
Clear Key
Comm Freq
Flip/Flop
Nav Radio Freq Flip/Flop
Nav Radio
Volume
Small Knob
Com/VLOC
Freq (kHz)
Com Freq
Window
Small Knob
(Cursor - Press
to activate)
Large Knob
Aviation Database Card
Flight Plan
Key
Cam
Lock
Message
Key
CDI
Key
Navigation
Source: GPS,
VLOC, or
GPS-PTK
Nav Freq
Window
Large Knob
Com/VLOC
Freq (MHz)
Terrain, Flight
Phase, and
GPS Integrity
Annunciator
Terrain Database Card
Waypoint and
arrival alerts,
turn advisories,
function, and
page number
MODEL DESCRIPTIONS
Model Descriptions
This guide covers the operation of the GPS 400W, GNC
420W, GNC 420AW, GNS 430W, and GNS 430AW. In
general, all models will be referred to as the 400W-series,
mation, the GPS 400W can connect to XM Satellite Radio’s
XM WX Weather Service via the GDL 69/69A datalink
receiver. The GDL 69A can also allow you to subscribe to
XM audio services.
except where there are physical or operational differences.
The 400W-series units are 6.25” wide and 2.66” high. The
display is a 240-by-128 pixel color LCD. The units include
two removable data cards: one with a Jeppesen database
(inserted in the left-most card slot) and the second is a Terrain database (inserted in the right-most card slot).
GPS 400W
The GPS 400W is a GPS-only unit with a WAAS GPS
engine and is TSO C146a certified for en route, terminal,
precision, and non-precision approaches. The GPS 400W
can simultaneously give aviators vital approach information
and weather and traffic data in relation to their position
on a color moving map display. Thanks to a high-contrast
color display, the information can be easily read from wide
viewing angles even in direct sunlight. Its color moving
map features a built-in database that shows cities, highways, railroads, rivers, lakes, coastlines, and a complete
Jeppesen aviation database. The Jeppesen aviation database
GNC 420W and GNC 420AW
The GNC 420W and GNC 420AW include all of the
features of the GPS 400W, and also include an IFR certified
airborne VHF communications transceiver. This multipurpose unit is available with either a 10-watt (GNS 420W)
or 16-watt (GNS 420AW) Com transmitter. Since the only
difference between these two units is the power of the
communications transmitter, references to the GNC 420W
will also include the GNC 420 AW.
(can be updated with a front-loading data card) contains
all airports, VORs, NDBs, Intersections, FSS, Approach,
DPs/STARs, and SUA information. The obstacle and terrain
databases provide an aid to navigation to help you work
with approved navigation charts.
Pilots will enjoy the GPS 400W as a multi-function
display (MFD), especially when it is coupled with traffic, lightning detection, and weather interfaces like Ryan
TCAD, TIS from the Garmin GTX 330 Mode S transponder, L3 SKYWATCH™, or STORMSCOPE® WX 500. With
GNS 430W and GNS 430AW
The GNS 430W and GNS 430AW include all of the
features of the GPS 420W/420AW, and also include IFR
certified airborne VOR/Localizer and Glideslope receivers.
This multipurpose unit is available with either a 10-watt
(GNS 430W) or 16-watt (GNS 430AW) Com transmitter.
Since the only difference between these two units is the
power of the communications transmitter, references to the
GNS 430W will also include the GNS 430 AW.
the FDE prediction program included with the Trainer CD,
the GPS 400W may be used for oceanic or remote operations. For the latest in graphical and textual weather infor-
GPS 400W
GNC 420W
GNC 420AW
GNS 430W
GNS 430AW
1
KEYS
AND KNOBS
Left-hand Keys and Knobs
In the GNC 420W and the GNS 430W, the
k
j
y
v
COM power/volume knob controls unit
power and communications radio volume.
Press the knob momentarily to enable/disable
automatic squelch control.
In the GNS 430W, the VLOC volume knob
controls audio volume for the selected VOR/
Localizer frequency. Press momentarily to
enable/disable the ident tone.
In the GNC 420W and GNS 430W, the large
left knob is used to tune the megahertz
(MHz) value of the standby frequency for
the COM transceiver or the VLOC receiver,
whichever is currently selected by the tuning
cursor.
In the GNC 420W and GNS 430W, the small
left knob is used to tune the kilohertz (kHz)
value of the standby frequency for the COM
transceiver or the VLOC receiver, whichever
is currently selected by the tuning cursor.
Press this knob momentarily to toggle the
tuning cursor between the COM and VLOC
windows.
COM power/
volume
VLOC volume
Small left knob
COM flip-flop
VLOC flip-flop
Large left knob
In the GNC 420W and GNS 430W, the COM
W
V
2
flip-flop key is used to swap the active and
standby COM frequencies. Press and hold to
select emergency channel (121.500 MHz).
In the GNS 430W, the VLOC flip-flop key
is used to swap the active and standby VLOC
frequencies (i.e., make the selected standby
frequency active).
KEYS AND KNOBS
Right-hand Keys and Knobs
R
D
m
c
E
The range key (RNG) allows you to select
the desired map scale. Press the up arrow side
of the key to zoom out or the down arrow
side to zoom in.
The direct-to key allows you to enter a
destination waypoint and establishes a direct
course to the selected destination.
The menu key (MENU) displays a context-
sensitive options list. The options list allows
you to make settings changes that relate to
the currently displayed page.
The clear key (CLR) is used to erase infor-
mation or cancel an entry. Press and hold this
key to immediately display the Default NAV
Page.
The enter key (ENT) is used to approve an
operation or complete data entry. It is also
used to confirm information, such as during
power on.
Range (map scale)
Direct-To
Clear
Large right knob
Menu
Enter
Small right knob
t
r
The large right knob is used to select
between the various page groups: NAV, WPT,
AUX or NRST. With the on-screen cursor
enabled, the large right knob allows you to
move the cursor about the page.
The small right knob is used to select
between the various pages within one of the
groups listed above. Press this knob momentarily to display the on-screen cursor. The
cursor allows you to enter data and/or make a
selection from a list of options.
3
KEYS
Bottom Row Keys
GPS 400W
GNC 420W
GNS 430W
N
C
O
As a Suspend (SUSP) key, it is used to
The nearest (NRST) key (GPS 400W
and GNC 420W only) displays the nearest
airports page. Then, turning the small right
knob steps through the NRST pages.
In the GNS 430W, the CDI key is used to
toggle which navigation source (GPS or
VLOC) provides output to an external HSI or
CDI.
The omni-bearing selector (OBS) key
is used for two functions: to activate OBS
selection and as a suspend key.
select manual or automatic sequencing of
waypoints. Pressing this key selects SUSP
mode, which retains the current “active to”
waypoint as your navigation reference even
after passing the waypoint (i.e., prevents
sequencing to the next waypoint). Pressing the OBS key again returns to normal
operation, with automatic sequencing of
waypoints.
F
P
The flight plan (FPL) key allows you to
create, edit, activate and invert flight plans,
as well as access approaches, departures and
arrivals. A closest-point-to-flight-plan feature
is also available from the flight plan key.
The procedures (PROC) key allows you
to select approaches, departures and arrivals from your active flight plan. When using
a flight plan, available procedures for your
departure and/or arrival airport are offered
automatically. Otherwise, you may select the
desired airport, then the desired procedure.
Whenever OBS mode is selected, you may
set the desired course to/from a waypoint
using the OBS Page, or an external OBS
selector on your HSI or CDI.
M
4
The message (MSG) key is used to view
system messages, important warnings, and
requirements.
POWER ON
Powering on the Unit
1. Turn the COM power/volume knob clockwise to
turn the unit on and set the desired radio volume.
2. The Main and GPS software version page appears
briefly, followed by land and terrain database pages,
as the unit conducts self-tests to ensure proper
operation.
3. Once the self-test concludes, database confirmation pages are displayed, showing the effective and
expiration dates of the databases on the NavData®
card. Press the ENT key to acknowledge the last
database page and proceed to the instrument panel
self-test page. There may be more self-test screens
depending on optional equipment installed in your
aircraft.
4. The instrument panel self-test page allows you
to verify that the unit is communicating properly
with in-panel instruments. Compare on-screen
indications with the information depicted on
connected instruments, such as the CDI, HSI, RMI
and/or external annunciators. Once you have verified proper operation, turn the large right knob
to select "Set Full Fuel?", "Go To Checklist", or
"OK?" (to display the Satellite Status Page), and
then press the ENT key.
5. When the GPS receiver has acquired a sufficient
number of satellites to determine a position, the
Map Page will automatically appear showing your
present position.
Power-up Sequence
5
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