SUPPLEMENT N° 1
GARMIN GNS 430 GPS/VHF COMM/NAV
1 INTRODUCTION
This section contains supplementary information for safe and efficient
operation of the aircraft if equipped with a Garmin GNS 430 system.
1.2 GENERAL
1. The GPS GNS 430 Global Positioning System is an integrated system that
contains a GPS navigation system in addition to a VHF COMM
radiotransceiver and a VOR/ILS receiver.
2. The system includes an antenna for GPS, a receiver for GPS, a VOR/LOC
antenna, a VOR/ILS receiver, a VHF Comm antenna and a VHF Comm
tranceiver.
3. The main function of the VHF Comm is to allow communication with the
control tower.
4. The VOR/ILS function is to receive and demodulate VOR and LOC
signals.
5. The GPS section is dedicated to signal acquisition from the GPS satellite
system and to furnish real-time information with respect to position, speed
and time.
6. With appropriate signals the GPS GNS 430 can:
plan VFR/IFR routes, track waypoints and plan non-precision
instrument approaches (GPS, LORAN-C, VOR, VOR-DME, TACAN,
NDB, NDB-DME, RNAV) in accordance with AC 20-138;
7. Reference coordinates used for navigation are WGS-84.