Garmin GNS 480, Pilot'S Manual

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Introduction
Cautions
CAUTION: 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
480 is a precision electronic NAVigation AID (NAVAID), any NAVAID can be misused or misin-
terpreted and therefore become unsafe.
CAUTION: Use the GNS 480 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 com-
pare indications from the GNS 480 to all available navigation sources, including the informa-
tion from other NAVAIDS, visual sightings, charts, etc. For safety, always resolve any discrepan-
cies before continuing navigation.
WARNING: The altitude calculated by the GNS 480 is geometric height above mean sea level
and could vary significantly from altitude displayed by pressure altimeters in aircraft. GPS ac-
curacy may be degraded by the U.S. Department of Defense-imposed Selective Availability (SA)
programs.
WARNING: The Jeppesen database incorporated in the GNS 480 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 480 package. Pilots using an out-of-date database
do so entirely at their own risk!
CAUTION: 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 electromagnetic
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 eliminated by switching off
the source of interference or moving the GPS receiver away from it.
NOTE : This device complies with Part 15 of FCC
limits for Class B digital devices. This equipment
generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance
with the instructions, may cause harmful interfer-
ence to radio communications. Furthermore, there
is no guarantee that interference will not occur in a
particular installation.
If this equipment does cause harmful interference, the
user is encouraged to try to correct the interference by
relocating the equipment or connecting the equipment
to a different circuit than the affected equipment.
Consult an authorized dealer or other qualified avi-
onics technician for additional help if these remedies
do not correct the problem.
Operation of this device is subject to the following
conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any
interference received, including interference that may
cause undesired operation.