INTRODUCTION
1
190-00356-00 Rev B
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
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 being a Terrain database (inserted in the
right-most card slot).
GPS 400W
The GPS 400W has a WAAS GPS engine and is TSO
C146a certified for primary domestic, oceanic, and
remote navigation including en route, terminal, and
non-precision approaches, and approaches with vertical
guidance, such as LPV and LNAV/VNAV. The GPS 400W
can simultaneously give aviators vital approach infor-
mation 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 database. The huge Jeppesen database
(that can be updated with a front-loading data card)
contains all airports, VORs, NDBs, Intersections, FSS,
Approach, DPs/STARs, and SUA information.
Pilots will enjoy the GPS 400W as an 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, or L3 SKYWATCH™, or
STORMSCOPE
®
WX 500. With the PC-based FDE pre-
diction program, the GPS 400W may be used for oceanic
or remote operations. For the latest in graphical and
textual weather information, the GPS 400W can connect
to XM Satellite Radio’s XM WX Weather Service via the
GDL 69/69A datalink receiver.
GNC 420W/420AW
The GNS 430W/AW includes all of the features of
the GPS 400W, and also includes TSO’d airborne VHF
communications transceiver. This multipurpose unit is
available with either a 10-watt (GNS 420W) or 16-watt
28 V dc (GNS 420AW) COM.
GNS 430W/430AW
The GNS 430W/AW includes all of the features of the
GPS 420W/420AW, and also includes TSO’d airborne
VOR/Localizer and Glideslope receivers. This multipur-
pose unit is available with either a 10-watt (GNS 430W)
or 16-watt 28 V dc (GNS 430AW) COM.
Takeoff Tour
This Takeoff Tour is intended to provide a brief
introduction of the 400W-series major features. The
rest of this manual describes these features, and others,
in additional detail. Use this guide, as needed, to learn
or review the details regarding a particular feature. The
Index may be used to quickly locate the information
you want. Before flying with your 400W-series unit, take
the time to review the information in the manuals and
practice with the trainer.
After you’re familiar with the basics, some suggested
reading within the Reference section includes:
• Flight plan features - Section 4
• Waypoint information pages (database information)
- Section 6
• IFR procedures - Section 5
• Unit settings (configuring the unit to your prefer-
ences) - Section 9
If you’re unable to locate the information you need,
we’re here to help! Garmin’s Customer Service staff is
available during normal business hours (U.S. Central
time zone) at the phone and fax numbers listed on page
ii. You can also reach us by mail (see page ii) or at our
web site address: www.garmin.com.
Model Descriptions
190-00356-00_0B.indd 1
9/7/2007 2:48:56 PM
