BendixKing SG 465 System EFS 40/50 - Manual (Page 113)

EHSI Displays
ring is the range ring distance.
The range ring represents half
the distance to the outer range
ring of the compass scale. The
available ranges, selectable from
the EFS 40/50 are 5, 10, 20, 40,
80,160, 240, 320 and 1000 nm.
N o t e : Systems which have the
R D R 1400 interfaced with the
E F S 40/50 will display weath -
er ranges of .5, 1 and 2 NM.
However, the NAV MAP fea -
ture is not supported on these
shorter ranges.
360-DEGREE MAP
WX RADAR (IF EQUIPPED)
Refer to Figure 4.1.7 while
reviewing this section.
If a compatible ARIN C 708
weather radar such as the
BENDIX/KING RDR 2000 or
RDS series is installed, weather
information may be selected for
display. When selected, weather
information will transparently
overlay the existing navigation
data. Light blue dotted lines rep-
resent the weather radar scan
l i m i t s .
Depending on the installation, the
E F S 40/50 may act as a weather
radar range controller or as a
simple remote display when the
EHSI has weather selected and
matches the radar range. As a
display only, if weather is select-
ed for display and the EHSI map
range does not match the select-
ed weather radar range “WX
FLT” will be annunciated in the
weather radar fault/warning posi-
tion. As a range controller, if the
selected range does not match
one allowed by the radar, “WX
FLT” will be annunciated in the
weather radar fault/warning posi-
tion. When the 1000 NM range
is selected “RANGE” is displayed
and the weather radar is placed
in standby. If the EFS 40/50 is
the only display media for the
weather radar, the radar will be
placed in standby when weather
is not selected for display.
Note: EHSI installations with the
BENDIX/KING RDR 2000 or
RDS series radar provide dual
range selection by allowing the
radar indicator and EHSI or
dual EHSIs to select indepen -
dent ranges. Only one source
of radar mode, tilt and gain is
supported. When the ranges
selected on the two controlling
indicators do not match, the
weather presentation will be
updated on alternating sweeps
of the radar antenna. Exam -
ple: if pilot
’ s EHSI is updated
on the right sweep then the
radar indicator will be updated
on the left sweep or vice versa.
In installations capable of pro -
viding weather information on
three displays, the dis play
without radar range control
must match one of the control -
ling displays in order to pre -
sent weather. If the range
does not match, “WX FLT” will
be annunciated in the weather
radar fault/warning position.
Four data lines are reserved
below the primary NAV sensor
source annunciator to display
radar information. The first line
4.1.18 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 4.1.18