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 the United Kingdom:

Radio observatories operating in the United Kingdom:

  • 37.5 - 38.25 MHz

    This band is used by the Cambridge 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 Cambridge 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 Cambridge Radio Observatory, the Jodrell Bank Radio Observatory and the MERLIN Network :

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • 322.0 -328.6 MHz

    This band is used by the Cambridge Radio Observatory and the Jodrell Bank 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.

  • 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 Cambridge Radio Observatory, the Jodrell Bank Radio Observatory and the MERLIN Network :

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 608.0 - 614.0 MHz

    This band is used by the Cambridge Radio Observatory and the Jodrell Bank Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Broadcasting Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Broadcasting Service applications.

  • 1330.0 - 1400.0 MHz

    This band is used by the Cambridge Radio Observatory, the Jodrell Bank Radio Observatory and the MERLIN Network :

    Radio astronomical quality of the band:

  • good.

  • good.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Aerinautical Radionavigation Service applications.
  • Fixed Service applications.
  • Mobile Service applications.
  • Radiolocation Service applications.

  • 1400.0 - 1427.0 MHz

    This band is used by the Cambridge Radio Observatory, the Jodrell Bank Radio Observatory and the MERLIN Network :

    Radio astronomical quality of the band:

  • good.

  • good.

  • good.

  • 1610.6 - 1613.8 MHz

    This band is used by the Jodrell Bank Radio Observatory and the MERLIN Network :

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Mobile-Satellite Service applications.
  • Radio Determination-Satellite Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Mobile-Satellite Service applications.
  • Radio Determination-Satellite Service applications.

  • 1660.0 - 1670.0 MHz

    This band is used by the Jodrell Bank Radio Observatory and the MERLIN Network :

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • 1718.8 - 1722.2 MHz

    This band is used by the Jodrell Bank Radio Observatory and the MERLIN Network :

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 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 Cambridge Radio Observatory and the Jodrell Bank Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • 2690.0 - 2700.0 MHz

    This band is used by the Cambridge Radio Observatory and the Jodrell Bank Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • 4800.0 - 4990.0 MHz

    This band is used by the radio observatories Cambridge, Darnhall, Defford, Jodrell Bank, Knockin and Pickmere:

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • 4990.0 - 5000.0 MHz

    This band is used by the radio observatories Cambridge, Darnhall, Defford, Jodrell Bank, Knockin and Pickmere:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 6650.0 - 6675.2 MHz

    This band is used by the Jodrell Bank Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

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

  • 10.6 - 10.7 GHz

    This band is used by the Jodrell Bank Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Satellite Service applications.

  • 14.47 - 14.50 GHz

    This band is used by the Cambridge Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Aeronautical Radionavigation Service applications.

  • 15.35 - 15.40 GHz

    This band is used by the Cambridge Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Aeronautical Radionavigation Service applications.

  • 22.01 - 22.21 GHz

    This band is used by the radio observatories Cambridge, Darnhall, Jodrell Bank, Knockin and Pickmere:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 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 radio observatories Cambridge, Darnhall, Jodrell Bank, Knockin and Pickmere:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 22.81 - 22.86 GHz

    This band is used by the Jodrell Bank Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable: often severe degradation by harmful interference.

    Reason:

  • Fixed Service applications.
  • Inter-Satellite Service applications.
  • Mobile Service applications.

  • 23.07 - 23.12 GHz

    This band is used by the radio observatories Jodrell Bank and Kockin:

    Radio astronomical quality of the band:

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

    Reason:

  • Fixed Service applications.
  • Mobile Service applications.

  • 23.60 - 24.00 GHz

    This band is used by the radio observatories Cambridge, Darnhall, Jodrell Bank, Knockin and Pickmere:

    Radio astronomical quality of the band:

  • good.

  • good.

  • good.

  • good.

  • good.

  • 31.2 - 31.8 GHz

    This band is used by the Cambridge Radio Observatory:

    Radio astronomical quality of the band:

  • reasonable.

    Reason:

  • Radionavigation Service applications.

  • 42.5 - 43.5 GHz

    This band is planned for use by the MERLIN Network.

    Last modified: February 16, 2005