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400 SERIES
INSTALLATION MANUAL
TM TM
GPS 400, GNC 420 (A), and GNS 430 (A)
GNC and GNS are trademarks of Garmin Ltd. or its subsidiaries
and may not be used without the express permission of Garmin.
(GNS 430 Shown)
Garmin International, Inc.
st
1200 E. 151 Street
Olathe, KS 66062 USA
190-00140-02, Revision L
December 2002
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© Copyright 1998 - 2002 Garmin Ltd. or its subsidiaries All Rights Reserved Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium, for any purpose without the express prior written consent of Garmin. Garmin hereby grants permission to download a single copy of this manual and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and to print one copy o
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This manual is written for software version 3.00, and is not suitable for earlier software versions. Information in this document is subject to change without notice. Visit the Garmin web site (www.garmin.com) for current updates and supplemental information concerning the operation of this and other Garmin products. INFORMATION SUBJECT TO EXPORT CONTROL LAWS This document may contain information which is subject to the Export Administration Regulations ("EAR") issued by the United States Depar
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TABLE OF CONTENTS 1. GENERAL DESCRIPTION 1.1 INTRODUCTION .........................................................................................................................................1-1 1.2 EQUIPMENT DESCRIPTION......................................................................................................................1-1 1.3 TECHNICAL SPECIFICATIONS.................................................................................................................1-2 1.4 LICEN
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LIST OF FIGURES FIGURE 2-1. GPS ANTENNA AND UNIT INSTALLATION CONSIDERATIONS .............................................2-2 FIGURE 3-1. COAXIAL CABLE INSTALLATION ................................................................................................3-5 FIGURE 3-2. GA 56 ANTENNA INSTALLATION DRAWING .............................................................................3-9 FIGURE 3-3. GNS 430 MOUNTING RACK DIMENSIONS ..........................................................
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LIST OF FIGURES - CONTINUED FIGURE 5-1. MAIN ARINC 429 CONFIG PAGE....................................................................................................5-1 FIGURE 5-2. MAIN RS232 CONFIG PAGE ............................................................................................................5-3 FIGURE 5-3. MAIN INPUTS 1 PAGE......................................................................................................................5-4 FIGURE 5-4. MAIN INPUTS 2 P
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400 SERIES HARDWARE MOD LEVEL HISTORY The following table identifies hardware modification (Mod) Levels for the GPS 400, GNC 420 and GNS 430. Mod Levels are listed with the associated service bulletin number, service bulletin date, and the purpose of the modification. The table is current at the time of publication of this manual (see date on front cover) and is subject to change without notice. Authorized Garmin Sales and Service Centers are encouraged to access the most up-to-date bulletin
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1. GENERAL DESCRIPTION 1.1 INTRODUCTION This manual describes the physical, mechanical, and electrical characteristics and the installation requirements for the 400 Series (GPS 400, GNC 420, and GNS 430) Panel-mounted units. After installation of the 400 Series system, FAA Form 337 must be completed by an appropriately certificated agency to return the aircraft to service. 1.2 EQUIPMENT DESCRIPTION The 400 Series units are mark width (6.25” wide) units, and 2.66” high. The display is a 128 by
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1.3 TECHNICAL SPECIFICATIONS The conditions and tests required for TSO approval of the 400 Series are minimum performance standards. It is the responsibility of those desiring to install this article either on or within a specific type or class of aircraft to determine that the aircraft installation conditions are within the TSO standards. The article may be installed only if further evaluation by the applicant documents an acceptable installation and is approved by the administrator. For TSO
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1.3.2 General Specifications Operating Temperature Range -20°C to +55°C. For more details see Environmental Qualification Form. Humidity 95% non-condensing Altitude Range -1,500 ft to 50,000 ft Input Voltage Range (GPS 400) 11 to 33 V DC Input Voltage Range 22 to 33 V DC GNS 430 (011-00280-00) and GNC 420 (011-00506-00) Input Voltage Range 11 to 33 V DC GNS 430 (011-00280-10, -30) GNC 420 (011-00506-10, -30) GNS 430 (A) (011-00836-00,-10) 28 V DC GNC 420 (A) (011-00837-00,-10) Power Requirement
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1.3.4 COM Transceiver Specifications (GNC 420 and GNS 430 Only) ** Regulatory Compliance TSO-C37d Class 4 & 6* (3 & 5 for “A” models), TSO-C38d Class C & E, JTSO-2C37e, JTSO-2C38e, RTCA DO-186a ICAO Annex 10 Volume III (Part II – Voice Communications Systems) Par. 2.3.3 Audio Output 100 mW minimum into a 500 Ω load. Audio Response Less than 6 dB of variation between 350 and 2500 Hz. Audio Distortion The distortion in the receiver audio output shall not exceed 15% at all levels up to 100 mW. AGC
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1.3.5 VOR Specifications (GNS 430 Only) Regulatory Compliance TSO C40c, JTSO-2C40c, RTCA DO-196, EuroCAE ED-22B Receiver Audio Sensitivity At -103.5 dBm (S+N)/N shall not be less than 6 dB. Course Deviation Sensitivity -103.5 dBm or less for 60% of standard deflection. Flag The VOR Course Deviation Flag must be flagged: a) in the absence of an RF signal. b) in the absence of the 9960 Hz modulation. c) in the absence of either one of the two 30 Hz modulations. d) When the level of a standard VOR
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1.3.6 LOC Specifications (GNS 430 Only) Regulatory Compliance TSO C36e, JTSO-C36e, RTCA DO-195 CLASS A, EuroCAE ED-46B Receiver Audio Sensitivity At -103.5 dBm (S+N)/N shall not be less than 6 dB. Course Deviation Sensitivity -103.5 dBm or less for 60% of standard deflection. Flag The LOC Course Deviation Flag must be flagged: a) in the absence of an RF signal. b) When either the 90 or 150 Hz modulating signals is removed and the other is maintained at its normal 20%. c) In the absence of both 9
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1.4 LICENSE REQUIREMENTS The following guidance is provided to help ensure the proper licensing of the GNC 420/GNS 430 COM: 1. The Telecommunications Act of 1996 effective February 8, 1996 provides the FCC discretion to eliminate radio station license requirements for aircraft. At present, an individual license to operate the 400 Series aboard a private aircraft is not needed in many circumstances. Please see FCC Fact Sheet PR5000 or contact the FCC at 1-800-322-1117 for more information. 2. N
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The FDE function is built into the GPS 400/GNC 420/GNS 430 and does not require pilot interaction. In contrast, the FDE Prediction Program does require pilot interaction and must be used prior to oceanic/remote area flights to predict FDE availability. The 400 Series Trainer software (Garmin Part Number 190-00176-00) includes an FDE Prediction Program to meet the requirements for GPS as a primary means of navigation for oceanic/remote operations per N8110.60. The oceanic flight phase occurs on
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2. INSTALLATION 2.1 INTRODUCTION Careful planning and consideration of the suggestions in this section are required to achieve the desired performance and reliability from the 400 Series unit. Any deviations from the installation instructions prescribed in this document shall be accomplished in accordance with the requirements set forth in FAA AC 43.13-2A, and 14 CFR Part 43 Maintenance, Preventive Maintenance, Rebuilding, and Alteration. 2.2 ANTENNA CONSIDERATIONS Antenna installations on pres
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2.2.6 ANTENNA LIMITATIONS Garmin’s GA 56 Antennas are recommended for installations where the airspeed of the aircraft is subsonic. In such installations, GA 56—Mod 1 or later—must be used. See the COM, VOR/LOC, and Glideslope antenna specifications for their limitations. 2.2.7 VHF COM INTERFERENCE OF GPS On many panel-mounted installations, VHF COM transceivers can radiate strong harmonics from the transceiver and its antenna. The 400 Series COM does not interfere with its own GPS section. Ho
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2.2.8 COM, VOR/LOC, and Glideslope Antenna Installation Instructions Install the COM, VOR/LOC, and Glideslope antennas according to the manufacturer’s recommendations. Avoid running other wires and coaxial cables near the VOR/LOC antenna cable. 2.3 RACK CONSIDERATIONS Plan a location which gives the pilot complete and comfortable access to the entire keypad and which is plainly visible from the pilot’s perspective. Installation of remote switches and annunciators may not be required if the 400
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Qualified GPS Antenna This antenna must be one of those listed in the accessories list, or meet the following requirements: 1. DO-160C Environmental Conditions The antenna shall meet the environmental conditions listed below and shall conform to the test requirements of RTCA DO-160C. Environmental Condition Category Description o Temperature (operating) F2 -55 to +70 C o (ground survival) F2 -55 to +85 C Altitude F2 55,000 feet o Temperature Variation A 10
