Garmin GNC 300 User Manual
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
Table of Contents
SECTION PAGE
GENERAL..............................................................................................................4
LIMITATIONS ......................................................................................................5
EMERGENCY PROCEDURES.............................................................................6
NORMAL PROCEDURES....................................................................................8
PERFORMANCE...................................................................................................16
WEIGHT AND BALANCE ...................................................................................16
AIRPLANE & SYSTEM DESCRIPTIONS...........................................................16
FAA APPROVED 190-00067-03 Rev. A
DATE: 10/16/95 Page 3 of 16
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
SECTION I
GENERAL
1. The GNC300 System is a fully integrated, panel mounted instrument,
which contains a 760 channel VHF Communications Transceiver and a Global
Positioning System (GPS) Navigation computer. The system consists of a GPS
antenna, a GPS Receiver, and a VHF Communications Transceiver. The primary
function of the VHF Communication portion of the equipment is to facilitate
communication with Air Traffic Control. The primary function of the GPS portion
of the system is to acquire signals from the GPS system satellites, recover orbital
data, make range and Doppler measurements, and process this information in realtime to obtain the user’s position, velocity, and time.
2. Provided the GARMIN GNC300 navigation system is receiving adequate usable
signals, it has been demonstrated capable of and has been shown to meet the
accuracy specifications for:
•
VFR/IFR enroute, terminal, and non-precision instrument
approach (GPS, Loran-C, VOR, VOR-DME, TACAN, NDB,
NDB-DME, RNAV) operation within the U.S. National
Airspace System in accordance with AC 20-138.
•
North Atlantic Minimum Navigation Performance
Specification (MNPS) Airspace in accordance with AC 9149 and AC 120-33.
Navigation is accomplished using the WGS-84 (NAD-83) coordinate reference
datum. Navigation data is based upon use of only the Global Positioning
System (GPS) operated by the United States of America.
190-00067-03 Rev. A FAA APPROVED
Page 4 of 16 DATE: 10/16/95
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
SECTION II
LIMITATIONS
1. The GARMIN GNC300 Pilot’s Guide, P/N 190-00067-00, must be
immediately available to the flight crew whenever navigation is predicated on
the use of the system.
2. The GNC300 must utilize software version 2.02 or later FAA approved
revision. The software version is displayed on the GNC300 self test page
immediately after turn-on for 5 seconds.
3. IFR enroute and terminal navigation is prohibited unless the p ilot verifies the
currency of the data base or verifies each selected waypoint for accuracy by
reference to current approved data.
4. Instrument approaches must be accomplished in accordance with approved
instrument approach procedures that are retrieved from the GPS equipment
data base. The GPS equipment data base must incorporate the current update
cycle.
(a) Instrument approaches must be conducted in the approach mode and
Receiver Autonomous Integrity Monitoring (RAIM) must be available at
the Final Approach Fix.
(b) Accomplishment of ILS, LOC, LOC-BC, LDA, SDF, and MLS
approaches are not authorized.
(c) Coupling of the autopilot/flight director to GPS deviation data on the arc
segment of approaches incorporating an arc transition is not authorized.
FAA APPROVED 190-00067-03 Rev. A
DATE: 10/16/95 Page 5 of 16
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