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WEATHER RADAR (RDR 1400C) SYSTEM : - PowerPoint PPT Presentation

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WEATHER RADAR (RDR 1400C) SYSTEM :. Purpose of the system:. The Primary use of this radar is to aid pilot in avoiding thunderstorms and associated turbulence .

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Presentation Transcript
purpose of the system
Purpose of the system:
  • The Primary use of this radar is to aid pilot in avoiding thunderstorms and associated turbulence.
  • The RDR1400C color vision weather radar system also has the capability for surface mapping and to receive signals from beacon Transponders.

The Primary system components of weather Radar system are

  • Receiver – Transmitter unit,
  • Radar Control panel,
  • Antenna Drive & Antenna Array and
  • Navigation concentrator.

There are two modes of operation :

  • 1. Normal mode of operation (Operation via Radar control panel)
  • 2. Back up mode of operation (Operation via MFD)
function selector
Function selector:
  • OFF ---- Removes system power.
  • SBY ----system is operationally ready, no display (Standby mode).
  • TST ----Displays a test pattern without transmitting, identified by ‘TEST’ and ‘RT FAULT’.
  • ON -----Systems transmits in normal operation
  • 60 Narrows antenna scan from 120 deg to 60 deg. Putting back the switch to ‘ON’
  • position widens the antenna scan to 120 deg.
antenna controls
Antenna Controls:
  • TILT Adjusts antenna tilt angle.
  • STAB OFF System transmits without antenna stabilization; ‘STB OFF’ displayed. This function is used in event of AHRS failure in flight.
  • Stabilization Range: ± 30 degs combined pitch, roll & tilt.
primary mode selectors
Primary mode selectors:
  • Wx ----- Selects weather mode, the primary mode of operation. The ‘Wx’ appears at the bottom left of the display.
  • WxA -----Selects weather alert mode. The ‘ WxA’ appears at the bottom left of the display.
  • “TGT ALRT” flashes at the top left of the display, if red return exists within 25 miles beyond the display range.
  • SRCH ---- Activates Search1 mode, sea clutter rejection (20 miles range or less) or Search 2 mode, short range precision mapping (20 mile range or less) or Search3 mode, normal surface mapping. ‘SR1/SR2/SR3’ appears at the bottom left of the display.
gain controls
Gain Controls:
  • SRCH GAIN : This rotary knob adjusts radar receiver gain when search mode is selected on control panel. Search gain value shall be displayed below the ‘SRCH GAIN’ title.