Committee on Radio Astronomy Frequencies

The Committee on Radio Astronomy Frequencies (CRAF) is a committee of the European Science Foundation (ESF).

Status of interference problems in France:

Radio observatories operating in France:

  • 13.36 - 13.41 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Aeronautical Mobile Service applications.
  • Fixed Service applications.

  • 25.55 - 25.67 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Broadcasting Service applications.
  • Fixed Service applications.
  • Mobile Service applications.

  • 37.5 - 38.25 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 73.0 - 74.6 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 79.25 - 80.25 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 150.05 - 153 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Land Mobile-Satellite Service applications.
  • Mobile Service applications.
  • Radionavigation-Satellite Service applications.

  • 322.0 -328.6 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Aeronautical Radionavigation Service applications.
  • Fixed Service applications.
  • Mobile Service applications.

  • 406.1 - 410.0 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 608.0 - 614.0 GHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Broadcasting Service applications.

  • 1330.0 - 1400.0 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Aeronautical Radionavigation Service applications.
  • Radiolocation Service applications.

  • 1400.0 - 1427.0 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: Undentified problems from time to time (exclusively during work hours).

  • 1610.6 - 1613.8 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Aeronautical Radionavigation Service applications.
  • Mobile Satellite Service applications.

  • 1660.0 - 1670.0 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Land Mobile-Satellite Service applications.
  • Meteorological Aids Service applications.

  • 1718.8 - 1722.2 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 2655.0 - 2690.0 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Aeronautical Radionavigation Service applications.
  • Broadcasting Service applications.
  • Fixed Service applications.
  • Mobile Service applications.

  • 2690.0 - 2700.0 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Aeronautical Radionavigation Service applications.
  • Broadcasting Service applications.
  • Fixed Service applications.
  • Mobile Service applications.

  • 3260.0 - 3267.0 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Radiolocation Service applications.

  • 3332.0 - 3339.0 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Radiolocation Service applications.

  • 3345.8 - 3352.5 MHz

    This band is used by the Nançay Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Radiolocation Service applications.

  • 22.01 - 22.21 GHz

    This band is used by the Bordeaux Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 22.21 - 22.50 GHz

    This band is used by the Bordeaux Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 22.81 - 22.86 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: but pressure by active spectrum applications giving rise to threat of severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 23.07 - 23.12 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: but pressure by active spectrum applications giving rise to threat of severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.
  • Inter-Satellite Link applications: i.e. of the Iridium system.

  • 23.60 - 24.00 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 42.5 - 43.5 GHz

    This band is used by the Bordeaux Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 76.0 - 77.5 GHz

    This band is used by the Bordeaux Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 77.5 - 78 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 78 - 79 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 79 - 81 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 81 - 84 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 84 - 86 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 86.0 - 92.0 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 92.0 - 94.0 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 94.0 - 94.1 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 94.1 - 95.0 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 95.0 - 100.0 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 100.0 - 102.0 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 102.0 - 105.0 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 105.0 - 109.5 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 109.5 - 111.8 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 111.8 - 114.25 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 114.25 - 116 GHz

    This band is used by the radio observatories at Bordeaux and Plateau de Bure:

    Radio astronomical quality of the band:

  • good.

  • 136 - 141 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 141 - 148.5 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 148.5 - 151.5 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 164 - 167 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 168 - 170 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 170 - 174.5 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 217 - 226 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 226 - 231.5 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 265 - 275 GHz

    This band is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

  • 275 - 1000 GHz

    This frequency range is used by the Plateau de Bure Radio Observatory:

    Radio astronomical quality of the band:

  • good.

    Other frequency bands used by the Radio Astronomy Service in France:

  • 10 - 90 MHz

  • 150 - 450 MHz

  • 910 - 950 MHz

  • 3200 - 3500 MHz

    Last modified: February 16, 2005