BendixKing KMD 540 - Addendum System KMD 850 - Manual (Page 22)

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KMD 550/850 Terrain Addendum Rev 3 Jun/2004
INCONSISTENT POSITIONS
The EGPWS sensor may use a different position source than the GPS
sensor that is used by the KMD 550/850 for its map display. In the
unlikely event that these two positions are significantly different, the fol-
lowing message will be displayed:
Since the two positions are different, all overlays on the Terrain page will
be disabled. You should cross check your position since this may indi-
cate a problem with either your GPS receiver or your EGPWS unit. Once
the positions are back within tolerance of each other then overlays will be
re-enabled.
KMD 550-850 EGPWS PG R3 7/1/04 2:49 PM Page 14