Weather Radar, basic principles

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Across
  1. 2. 5 cm wavelength and a frequency of 5200MHz - 5900MHz
  2. 6. Sudden change in wind direction or speed
  3. 7. This motor sweeps the antenna side to side
  4. 8. Computes azimuth and elevation to keep antenna stabilized
  5. 9. Mode on monochromatic displays to show storm strength
  6. 11. Quiescent period is also known as the
  7. 12. Usually set to auto, adjusts sensitivity of receiver
  8. 13. Newer radars detect turbulence using this effect
  9. 16. Carries RF energy from the receiver and transmitter to the antenna
  10. 19. The pulse __________ frequency is the number of pulses transmitted per second
  11. 20. When it looks like the aircraft is flying a clear path, but when viewed at a further range is actually flying head on into a storm
Down
  1. 1. Where is the antenna mounted
  2. 3. The magnetron power oscillator generates this
  3. 4. This radar function is a good indication of storm strength - shows heigh of storm and clouds
  4. 5. Alerts the pilot of potentially dangerous weather systems in aircraft path
  5. 10. Weather radar reflects off this in the air
  6. 14. This "time control" increases the gain for distant returns to get accurate target intensity
  7. 15. Time for signal to be sent out, bounce off a system and reflect back
  8. 17. Weather radar works on this principle
  9. 18. There are digital and ______ systems