16 / 20
In which frequency band do most airborne weather radars operate?
  • A
    EHF
  • B
    SHF
  • C
    VHF
  • D
    UHF
Airborne Weather Radar (AWR) is a primary radar system that is fitted to an aeroplane. The selected frequency for AWR is in the SHF band and is 9.375 GHz. This has an associated wavelength of 3.2 cm. AWR must be optimised not to detect very small particles such as thin fog but to accurately identify rain particles in storms.
  • Too small wavelengths will result in reflection from very small particles. Larger wavelengths result in the waves bending around particles of interest.

Your Notes (not visible to others)



This question has appeared on the real examination, you can find the related countries below.

  • Austro Control
    60
  • Spain
    23
  • France
    18
  • Ireland
    17
  • Switzerland
    10
  • Germany
    9
  • Norway
    8
  • Poland
    8
  • Italy
    7
  • Malta
    7
  • Czech Republic
    6
  • Greece
    5
  • Latvia
    5
  • Sweden
    5
  • United Kingdom
    5
  • Hungary
    4
  • Portugal
    4
  • Romania
    4
  • Bulgaria
    3
  • Finland
    3
  • Lithuania
    3
  • Denmark
    2
  • Iceland
    2
  • Slovakia
    2
  • Croatia
    1
  • Hong Kong
    1
  • Luxembourg
    1
  • Netherlands
    1
Keyboard Shortcut Use Keyboard Shortcuts