Garmin 430w Manual

1
Model Descriptions
This guide covers the operation of the GPS 400W, 
GNC 420W, GNC 420AW, GNS 430W, GNS 430AW. In 
general, all models will be referred to as the 400W-series, 
except where there are physical or operational differ-
ences. 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 being a Terrain database (inserted in the...

2
f
 The small left knob (COM/VLOC) 
(420W/430W only) is used to tune the kilo-
hertz (kHz) value (to the right of the decimal 
point) of the standby frequency for the com-
munications transceiver (COM) 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 frequency fields. 
W
 The COM flip-flop key (420W/430W only) 
is used to swap the active and standby COM 
frequencies. Press and hold to select...

3
E 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. 
d
 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. 
a The small right knob (CRSR) is used to 
select between the various pages within one 
of the groups listed above. Press this knob 
momentarily to display...

4
Key and Knob Functions
Bottom Row Keys
The nearest (NRST) key (400W/420W 
only) displays the nearest airports page. 
Then, turning the small right knob steps 
through the NRST pages. 
The CDI key (430W only) is used to toggle 
which navigation source (GPS or VLOC) pro-
vides output to an external HSI or CDI. 
The OBS key is used to select manual or 
automatic sequencing of waypoints. Pressing 
the OBS key selects OBS mode, which will 
retain the current “active to” waypoint as 
your navigation...

5
Power On
Power On
The Garmin 400W-series provides you accurate 
navigational data and some models also have com-
munication capability, along with non-precision and 
precision approach certification in the IFR environ-
ment. The Takeoff Tour is designed to familiarize you 
with the operation of the 400W-series — including 
powering up the unit, changing frequencies, entering 
data, performing a simple direct-to, selecting IFR pro-
cedures and provides a limited introduction to using 
flight plans. In...

6
Instrument Panel Self-Test
Instrument Panel Self-Test
Once the database has been acknowledged, the 
instrument panel self-test page will appear. To ensure 
that your 400W-series unit and any connected instru-
ments are working properly, check for the following 
indications on your CDI/HSI, RMI, external annuncia-
tors and other connected instruments: 
•  Course deviation
• Glideslope
• TO/FROM flag
•  Time to destination
• Bearing to destination
•  Desired track
• Distance to dest.
•  Ground speed
•...

7
Fuel On Board and Checklists
The instrument panel self-test page includes selec-
tions to set fuel on board (FOB) to full capacity and 
access the checklists page. This allows you to quickly 
set fuel to full limits and display any checklists you’ve 
entered, such as start up or takeoff checklists. 
To set fuel on board to full (if not provided by 
sensor): 
1.  Turn  the large right knob to highlight “Set 
Full Fuel?”. 
Select “Set Full Fuel?” to set fuel on board 
(FOB) to full capacity.  
2.  Press...

8
Acquiring Satellites/Messages
If the 400W-series unit has not been operated for a 
period of six months or more, it may have to “Search 
the Sky” to collect new data. This means the unit is 
acquiring satellite data to establish almanac and satel-
lite orbit information, which can take 5 to 10 minutes. 
The Satellite Status Page displays a “Searching Sky” 
status, and the message annunciator (MSG) above the 
MSG key also flashes to alert you of a system message, 
“Searching the Sky”. 
The Time and...

9
Selecting COM and VLOC Frequencies
While the 400W-series unit is acquiring a position, 
let’s take a minute to dial in the active and standby 
frequencies you’ll be using for the first phase of your 
flight. The 400W-series display is divided into separate 
“windows” (or screen areas), including a COM window, 
VLOC window, and the GPS window. 
COM Window:
Active Frequency COM Window: 
Standby Frequency  with tuning cursor
VLOC Window:
Active Frequency
Pushing the small left knob activates the tuning...

10
Page Groups
Page Groups
Default NAV
Map
NAVCOM
Position
Satellite Status
VNAV
NAV Group
Terrain
Selection of any main page is performed using the large and small right knobs. The large right knob selects the page group: NAV, WPT, AUX or 
NRST. The small right knob selects the desired page within a group. To quickly select the default NAV page, press and hold the CLR key. 
(Small right knob to select pages within the  group)
a
WPT Group
Arpt Location
Arpt Runway
Arpt Frequency
Arpt Approach
Arpt...