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GF1710_031
Rev 2A, Apr 11, 2005 Flight Crew Operating Manual Volume 2
The weather radar control panel, located on the pedestal, controls GAIN, RADAR modes, TILT and Lightning Sensor System (LSS) (if installed). It also enables turbulence (TRB) mode, antenna stabilization (STAB), target alert (TGT) and sector scan (SECT).
STAB ON/OFF Button
Used to enable or disable antenna stabilization.
TRB Button
Used to determine if turbulence is present in WX mode at 50 NM or less.
GAIN Knob
Used to control receiver gain.
TGT Button
Used to detect weather conditions beyond
selected range.
SLV Annunciator
Comes on to indicate which radar is slaved to the primary. The primary is the first WX turned on.
RADAR Rotary Knob
Used to select the following functions:
OFF . Turns the radar system off.
SBY . Selects standby mode, stops antenna scan and transmitter.
WX . Selects weather radar mode.
RCT . Selects rain echo attenuation compensation technique.
GMAP . Selects ground mapping
mode.
FP . Selects flight plan mode.
TST . Selects the radar test mode.
SECT Button
Used to select either the normal scan (120°) or alternate scan (60°).
TILT Knob
Used to select tilt angle. Clockwise rotation tilts beam upward to +15°, counterclockwise tilts the beam downward to .15°.
Lightning Sensor System (LSS) (if installed)
Used to select the following LSS operating modes:
OFF . Turns the LSS off.
SBY . Selects standby mode.
LX . Displays LSS data on MFD.
CLR/TST . Selects test mode.
GF1710_032
Volume 2 Flight Crew Operating Manual Rev 2A, Apr 11, 2005
The weather radar system provides a display of X.band radar detectable areas of precipitation along and within 60° on either side of the airplane’s flight path. Weather radar returns, turbulence and lightning (if LSS installed) are displayed on the MFDs (MAP mode only). A range of up to 300 NM from the airplane is selectable using the up or down buttons on the MFD control panel.
WX Radar Range
10 NM
25 NM
50 NM
100 NM
200 NM
300 NM
ANNUNCIATION
LIGHTNING ANNUNCIATION
RADAR ANTENNA
GF1710_033
The antenna sweep is selectable for either 120° (60° each side of the airplane) or 60° (30° each side). The antenna tilt is adjustable between .15° (down) and +15° (up). The antenna maintains its stabilization with respect to the horizon regardless of the airplane attitude (within .15° to +15°).
Rev 3, Apr 25, 2005 Flight Crew Operating Manual Volume 2
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