License Requirements; Certification; Fault Detection And Exclusion (Fde) - Garmin GNC 420A Installation Manual

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. No license change is required for an aircraft which already has a station license per FCC 404
Instructions dated 1994.
3. If an aircraft license is required or desired, contact the FCC at 1-800-322-1117 to request FCC Form
404, "Application for Aircraft Radio Station License," to apply for FCC authorization. The FCC also
has a "Fax on Demand" service to provide forms by FAX at 202-418-0177.
This equipment has been type accepted by the FCC. The bandwidth/emission designator is 6K00 A3E.
THE VHF TRANSMITTER IN THIS EQUIPMENT IS GUARANTEED TO MEET FEDERAL
COMMUNICATIONS
TEMPERATURE RANGE. MODIFICATIONS NOT EXPRESSLY APPROVED BY GARMIN
COULD INVALIDATE THE LICENSE AND MAKE IT UNLAWFUL TO OPERATE THE
EQUIPMENT.
1.5

CERTIFICATION

The GPS receivers in the 400 Series units are certified for IFR enroute, terminal, and non-precision
approaches. The 400 Series initial certification was accomplished via STC's by Garmin in a Piper PA32.
See Appendix B for copies of the STC's.
The 400 Series units have been qualified to RTCA/DO-160 Section 22 lightning requirements. Special
installation considerations are required, refer to the Environmental Qualification Forms in Appendix A.
1.6

FAULT DETECTION AND EXCLUSION (FDE)

The 400 Series equipment as installed has been found to comply with the requirements for GPS
primary means of navigation in oceanic and remote airspace, when used in conjunction with the
400 Series Trainer Program incorporating the FDE Prediction Program. This does not constitute
an operational approval.
The Garmin 400 Series Main and GPS Software version 3.00 and higher incorporate Fault Detection and
Exclusion (FDE) display interface and control, satisfying the requirements for GPS as a Primary Means of
Navigation for Oceanic/Remote Operations per FAA Notice N8110.60.
Fault Detection and Exclusion consists of two parts. The fault detection function detects a satellite failure
that can affect navigation. The exclusion function refers to the capability of excluding one or more failed
satellites and preventing them from affecting navigation.
FDE is provided for Oceanic and Remote Operations, non-precision approaches, en route and terminal
phases of flight. FDE for non-oceanic flight phases adhere to the same missed alert probability, false alert
probability, and failed exclusion probability specified by N8110.60.
400 SERIES INSTALLATION MANUAL
P/N 190-00140-02
CAUTION
COMMISSION ACCEPTANCE
NOTE
OVER THE OPERATING
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