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Pilot’s Guide and Reference
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GARMIN International, Inc., 1200 East 151st Street, Olathe, Kansas 66062 USA
Tel: 913/397.8200 Fax: 913/397.8282GARMIN (Europe) LTD, Unit 5, The Quadrangle, Abbey Park, Romsey, Hampshire S051 9AQ, UK
Tel: 44/1794.519944 Fax: 44/1794.519222
GARMIN (Asia) Corp., No. 68, Jangshu 2nd Road., Shijr, Taipei County, TaiwanTel: 886/2.2642.9199 Fax: 886/2.2642-9099Website Address: www.garmin.com
© 1998- 2000 GARMIN Corporation. All rights reserved. Except as expressly pro-
vided herein, no part of this manual may be reproduced, copied, transmitted, dis-
seminated, downloaded or stored in any storage medium, for any purpose without
the express prior written consent of GARMIN Corporation. GARMIN Corporation
hereby grants permission to download a single copy of this manual and of any revi-
sion to this manual onto a hard drive or other electronic storage medium to be
viewed and to print one copy of this manual or of any revision hereto, provided that
such electronic or printed copy of this manual or revision must contain the com-
plete text of this copyright notice and provided further that any unauthorized com-
mercial distribution of this manual or any revision hereto is strictly prohibited.
Information in this document is subject to change without notice. GARMIN reserves
the right to change or improve their products and to make changes in the content of
this material without obligation to notify any person or organization of such changes
July 2000 190-00140-00 Rev. F
Visit the GARMIN website for the latest
updates and supplemental information con-
cerning the operation of this and other
GARMIN, GNS 430, Spell’N’Find, AutoLocate
and PhaseTrac12 are trademarks of GARMIN
and may only be used with permission.
NavData® is a registered trademark of
This manual incorporates changes included in
Main System Software version 2.17. It
includes information contained in the
Addendum to Pilot's Guide P/N 190-00140-11
Rev A, covering crossfill and fuel management
operation for software 2.11 and above.
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The Global Positioning System is operated by the United States government, which
is solely responsible for its accuracy and maintenance. The system is subject to changes
which could affect the accuracy and performance of all GPS equipment. Although the
GARMIN GNS 430 is a precision electronic NAVigation AID (NAVAID), any NAVAID
can be misused or misinterpreted and therefore become unsafe.
Use the GNS 430 at your own risk. To reduce the risk of unsafe operation,
carefully review and understand all aspects of this Owner’s Manual and the Flight
Manual Supplement, and thoroughly practice basic operation prior to actual use. When
in actual use, carefully compare indications from the GNS 430 to all available navigation
sources, including the information from other NAVAIDS, visual sightings, charts, etc.
For safety, always resolve any discrepancies before continuing navigation.
The altitude calculated by the GNS 430 is geometric height above mean sea level
and could vary significantly from altitude displayed by pressure altimeters in aircraft.
GPS accuracy may be degraded by the U.S. Department of Defense-imposed Selective
Availability (SA) program. With “SA” on, GPS altitude may be in error by several hun-
dred feet. Never use GPS altitude for vertical navigation.
GPS receivers operate by receiving and decoding very low power radio signals
broadcast by satellites. It is possible that in some situations other radio equipment or
electronic equipment used in close proximity to a GPS receiver may create electromag-
netic interference (EMI) which may affect the ability of the GPS receiver to receive and
decode the satellite signals. In such event, the interference may be reduced or eliminat-
ed by switching off the source of interference or relocating equipment.
The Jeppesen database incorporated in the GNS 430 must be updated regularly in
order to ensure that its information is current. Updates are released every 28 days. A
database information packet is included in your GNS 430 package.
Pilots using an out-of-date database do so entirely at their own risk.
NOTE: This device complies with Part 15 of the
FCC limits for Class B digital devices. This equip-
ment generates, uses, and can radiate radio fre-
quency energy and, if not installed and used in
accordance with the instructions, may cause harm-
ful interference to radio communications.
Furthermore, there is no guarantee that interfer-
ence will not occur in a particular installation.
If this equipment does cause harmful interfer-
ence, the user is encouraged to try to correct the
interference by relocating the equipment or connect-
ing the equipment to a different circuit than the
affected equipment. Consult an authorized dealer or
other qualified avionics technician for additional help
if these remedies do not correct the problem.
Operation of this device is subject to the follow-
ing conditions: (1) This device may not cause harm-
ful interference, and (2) this device must accept
any interference received, including interference
that may cause undesired operation.
The GARMIN GNS 430 does not contain any
user-serviceable parts. Repairs should only be made
by an authorized GARMIN service center.
Unauthorized repairs or modifications could void
your warranty and authority to operate this device
under Part 15 regulations.
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Accessories & Packing List
Congratulations on choosing the finest, most advanced panel mount IFR
navigation/communication system available. The GNS 430 represents GARMIN’s
commitment to provide accurate, easy-to-use avionics for all of your flying needs.
Before installing and getting started with your new system, please check to see
that your package includes the following items. If any parts are missing or dam-
aged, please see your GARMIN dealer immediately.
• GNS 430 Unit & NavData® Card
• Installation Rack & Connectors
• Pilot’s Guide & Quick Reference Guide
• Database Subscription Packet
• Warranty Registration Card
Your GARMIN dealer will perform the installation and configuration of your
new GNS 430. After installation, the NavData® card will already be installed into
the correct slot on the front of the unit (see Appendix A). The GNS 430 will be
secured in the installation rack with the proper wiring connections performed.
Have your dealer answer any questions you may have about the installation—such
as location of antennas or any connections to other equipment in the panel.
To obtain accessories for your GNS 430,
please contact your GARMIN dealer.The GNS 430 display lens is coated with
a special anti-reflective coating which is
very sensitive to skin oils, waxes and
abrasive cleaners. It is very important to
clean the lens using an eyeglass lens
cleaner which is specified as safe for anti-
reflective coatings (one suitable product is
®Lens Cleaner) and a clean,
Help us better support you by completing
our online registration today!
Registration ensures you will be notified
of product updates, new products and
provides lost or stolen unit tracking. Have
the serial number of your GNS 430 handy
and connect to our website
(www.garmin.com). Look for the Product
Registration link on the home page.
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