EFD1000 Installation Manual
DOCUMENT # A-01-126-00 PAGE 75-225 Revision H
© Copyright 2009 Aspen Avionics Inc.
8.1.4 ARINC 429 GPS Inputs
The PFD receives the following labels on pins (16, 17) and (20, 21) when transmitted
from a GPS receiver. ARINC 429 word definitions are implemented per GAMA Pub 11.
ARINC Label(s) PFD Parameter
074 Data Record Header
075, bit 9 set OBS/HOLD Mode
075, bit 9 not set Auto Course Select
Label 100, bits 13(0)
and 12(1)
CDI Select (GPS) [GNAV installation only]
Label 100, bits 13(1)
and 12(0)
CDI Select (VLOC) [GNAV installation only]
Label 114 GPS “Desired Track”
Label 115 GPS “Waypoint Bearing”
Label 116 GPS “Crosstrack”
Label 117 GPS “Vertical Deviation”
Label 147 GPS “Magnetic Variation”
Label 121 GPS “Horizontal Command”
Label 251 GPS “Distance to Go”
Label 252 GPS “Time to Go”
Label 261G, bits 25
(0), 26(0), 27(0)
GPS “ENROUTE”
Label 261G, bits
25(1), 26(0), 27(0)
GPS “ TERMINAL”
Label 261G, bits
25(0), 26(1), 27(0)
GPS “APPR Active”
Label 300 GPS “Mag. Station Decl, Wpt Type, Class
Label 303 GPS “Message Length, Type, Number
Label 304 GPS “Message Characters 1-3”
Label 305 GPS “Message Characters 4-6”
Label 306 GPS NAV Waypoint Latitude” Full precision
Label 307 GPS NAV Waypoint Longitude” Full precision
Labels 310 GPS “Present Position Latitude”
Label 311 GPS ”Present Position Longitude”
Label 275, bit 23 GPS “TO” Flag
Label 275, bit 24 GPS “FROM” Flag
Label 275, bit 11 set GPS “WPT ALERT”
Label 275, bit 22 set GPS “INTEGRITY”
Label 275, bit 27 set GPS “MSG ALERT”
Label 312 GPS “Ground Speed”
Label 313 GPS “Track”
Label 326 GPS “Lateral Deviation Scale Factor” full precision
Label 327 GPS “Vertical Deviation Scale Factor” full precision
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