BendixKing SG 465 System EFS 50 - Manual (Page 73)

EHSI Displays
4.1.7 Issued 4/95 SW 06/07/08/11
whose primary job is servicing
the number one VOR/ILS, failed,
the symbol generator would look
to DME number two for VOR/ILS
DME number one distance infor-
mation. If the information was
present, a yellow boxed DME 2
would be displayed in the upper
right hand corner of the number
one EHSI and MFD. This alerts
the pilot he is now getting dis-
tance information from the copi-
lot’s DME. A green boxed DME
2 is placed in the same location
on the number 2 EHSI alerting
the copilot the pilot is getting dis-
tance information from his DME.
These boxed DME annunciations
use the same display field as the
Time-to-station (or Time-to-way-
point) after software 08. The
abnormal DME annunciation has
priority over TTS/TTW.
Note: The variety of the various
DME installations is numerous,
and therefore may be neces-
sary to refer to the aircraft
flight manual supplement for
specific operation of a given
installation.
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 fre-
quency information, the HELD
FREQUENCY will be displayed
in white where the groundspeed
was previously displayed.
DME HOLD for BEARING
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-
mation.
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