BendixKing SG 465 System EFS 40/50 - Manual (Page 153)

EADI Displays
comparison if required.
w
H D G
Heading miscompare, a yellow
double-ended arrow over “HDG”
will be displayed to the left of the
lubber on the EHSI and right side
center of the EADI if heading 1,
2, and cross-side (if available)
differ by more than 6 degrees up
to 6 degrees of bank and by
more than 20 degrees above 6
degrees of bank. If bank infor-
mation is not available, the mis-
compare will be displayed if
heading differs by more than 20
degrees. The miscompare will
also be displayed if the failure
warning flags differ. Heading
miscompare will be processed in
the EHSI section of the symbol
generator and displayed on the
EADI if the heading t ape is
selected for display. Heading
miscompare w ill not be per-
formed if sources are not type
matched (all magnetic or all true).
Note: In reversionary modes the
EHSI Attitude may be used for
comparison if required.
N o t e : Beginning with software
10, SG1 to SG2 comparisons
of attitude, heading, and radio
altitude are not performed if
valid data is not available on
the cross-talk bus between
symbol generators. Therefore,
failure of an SG in installations
with both SG1 and SG2 config -
ured can cause miscompare
annunciations only with soft -
ware versions before 10.
4.2.18 Issued 8/10 SW 04/05/06/07/08/09/10/11/12/13/14/15/16
Section 4.2mp 10/13/10 2:55 AM Page 4.2.18