BendixKing SG 465 System EFS 40/50 - Manual (Page 103)

EHSI Displays
DME HOLD
When DME HOLD is selected,
the DME distance and annuncia-
tor color will change to white and
remain that color until HOLD
function is released. The sensor
identifier (ADF, VOR ILS, etc)
shall retain the original assigned
color, this color difference indi-
cates there may be no relation-
ship between the two fields. The
HOLD function is additionally
indicated by an orange letter “H”
which is displayed directly below
and to the right of the distance
information. DME groundspeed
and time-to-station will not be dis-
played when DME HOLD is
active. If the DME provides
ARINC 429 frequency informa-
tion, the HELD FREQUENCY will
be displayed in white where
groundspeed was previously dis-
p l a y e d .
DME HOLD for BEAR ING
POINTER/DME #1 and BEAR-
ING POINTER/DME #2 will oper-
ate as described above, but
HELD FREQUENCY information
will not be displayed.
Once the DME is placed in
HOLD, its distance will continue
to be displayed and will not be
affected when bearing pointers
and primary NAV sensors are
changed unless the selected
sensor provides range informa-
tion such as an LNAV, RNAV or
MLS. In these cases, the held
information will be replaced with
the selected sensor
’ s range infor-
m a t i o n .
The bearing pointer sensor
annunciators located in the lower
right and left corners of the dis-
play also provide range informa-
tion when the selected bearing
sensor has associated range. If
the associated range information
is provided by DME, then the
range information and NM
annunciation will change from the
normal light blue or magenta
color to white and be followed by
an orange “H” when HOLD is
activated. If an ADF is the
selected bearing pointer sensor
and the DME assigned to that
side is placed in HOLD, the large
ADF annunciation will reduce in
size as the white held DME
range information and orange “H”
is displayed below it.
Please note that the range infor-
mation being displayed is not ref-
erenced to the ADF, but to what-
ever channel the DME was tuned
to when the pilot placed it in
H O L D .
DME HOLD will not function
when an LNAV or RNAV is the
selected sensor, and is not
allowed when MLS or TACAN is
the selected primary sensor. The
associated distance field is used
to display waypoint distance or
distance to the MLS or TACAN
s t a t i o n .
N o t e : It is important to remem -
ber that once a DME is placed
in HOLD it probably is not ref -
erenced to any VOR/ILS sen -
sor being displayed. Hold
removes the dependency of
4.1.8 Issued 8/10 SW 04/05/06/07/08/09/10/11/12/13/14/15/16
Section 4.1mp 9/9/10 1:45 AM Page 4.1.8