Hawker 800 XP, Pilot Training Manual

Page: 448 / 504

MAP Button
By pressing the MAP button, the full com-
pass display may be changed to the partial
compass format allowing one waypoint for
each bearing pointer and VOR/DME ground
station positions to be displayed. The infor-
mation will only be displayed if within the
range selected. If in WX mode, activation of
the MAP button will select the MAP format
with weather radar information.
Weather Radar (WX) Button
The WX button is used to call up weather radar
returns on the partial compass MAP display
of the EHSI. If the EHSI is in the full compass
MAP mode initially, pressing the WX button
changes the display to the partial compass
MAP mode and displays weather radar returns
from the weather radar or a weather test pat-
tern. If presently in MAP mode, activation of
the WX button will super-impose weather
radar information over the MAP information.
A second push of the WX button will remove
the weather information.
Ground Speed/Time-To-Go
(GS/TTG) Button
By pressing the GS/TTG button, ground speed
or time-to-go will alternately be displayed in
the lower right corner of the EHSI. The power-
up condition is ground speed displayed.
Elapsed Time (ET) Button
By pressing the ET button, elapsed time is
displayed. ET replaces to GS/TTG display.
Pressing the ET button the first time will reset
the displayed time to zero. The toggling se-
quence of the ET button is reset, start, stop.
VHF Omni Range/Localizer (V/L)
Button
By pressing the V/L button, VOR/LOC in-
formation is selected for display on the EHSI.
This information is also sent to the FZ-800
Flight Guidance Computer. This button tog-
gles between NAV 1 and NAV 2. The power-
up condition is the on-side NAV source.
Flight Management System (FMS)
Button
By pressing the FMS button, FMS information
is selected for display on the EHSI. This but-
ton toggles between FMS 1 and FMS 2. The
power-up condition is the on-side FMS.
Bearing (BRG) Source Select Knobs
The EHSI has the capability of displaying two
independent bearing pointers. The selectable
bearing sources for each pointer are as follows:
BRG
Ο
BRG
◊
OFF OFF
VOR 1 VOR 2
ADF 1 ADF 2
FMS 1 FMS 2
DIM Controls
The dimming system employed by the EDZ-
817 EFIS is semi-automatic. Two inputs con-
tribute to the overall display brightness of
each ED-800 Electronic Display:
• Ambient light sensed by the photosen-
sors on each ED-800
• Setting of the dimming controls
The DIM pot sets the nominal intensity for
each display. The photosensors located on
each ED-800 cause the light output of each dis-
play to be modulated about the nominal in-
tensity as a function of the light incident on
each display.
16A-24
FOR TRAINING PURPOSES ONLY
HAWKER 800 XP PILOT TRAINING MANUAL
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