Stewart-Warner Electronics Div.

Radar Altimeter

  • The Altitude Radar is a FM CW system that determine altitude from zero to 50,000 feet. The output of the transmitter is a swept CW frequency from 4.24 GHz to 4.36 GHz or 4.3 GHz +/- 60 MHz. The Maximum power output of the transmitter is 1 watt, Track power of the antenna is attenuated or adjusted to 10dB above receiver noise.
  • The CARA system covers an altitude of 0 to 50,000 feet which is broken into seven segments as listed below.
  • *Segment Altitude Sweep Time(m/sec)
  • *0 0-1000 0.396
  • *1 1000-2000 0.791
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