Committee on Radio Astronomy Frequencies

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

Definition:

Inter-Satellite Service: A radiocommunication service providing links between artificial earth satellites.

• ITU Radio Regulations allocations for Region 1
• Potential pressure to the Radio Astronomy Service

ITU Radio Regulations allocations for Region 1:

  22.55  -   23.55  GHz:	primary No: 5.149
  24.45  -   24.65  GHz:	primary
  24.65  -   24.75  GHz:	primary
  25.25  -   25.5   GHz:	primary No: 5.536
  25.5   -   27     GHz:	primary No: 5.536
  27     -   27.5   GHz:	primary No: 5.536
  32     -   32.3   GHz:	primary No: 5.547 5.547C 5.548
  32.3   -   33     GHz:	primary No: 5.547 5.547D 5.548
  54.25  -   55.78  GHz:	primary No: 5.556A 5.557A
  55.78  -   56.9   GHz:	primary No: 5.547 5.556A 5.557
  56.9   -   57     GHz:	primary No: 5.547 5.556B 5.557
  57     -   58.2   GHz:	primary No: 5.547 5.556A 5.557
  59     -   59.3   GHz:	primary No: 5.556A
  59.3   -   64     GHz:	primary No: 5.138
  64     -   65     GHz:	primary No: 5.547 5.556
  65     -   66     GHz:	primary No: 5.547
  66     -   71     GHz:	primary No: 5.554
 116     -  119.98  GHz:	primary No: 5.341 5.562C
 119.98  -  120.02  GHz:	primary No: 5.341 5.562C
 120.02  -  122.25  GHz:	primary No: 5.138 5.562C
 122.25  -  123     GHz:	primary No: 5.138
 130     -  134     GHz:	primary No: 5.149 5.562A
 167     -  168     GHz:	primary
 168     -  170     GHz: primary No: 5.149
 170     -  174.5   GHz: primary No: 5.149 5.562D
 174.5   -  174.8   GHz:	primary
 174.8   -  182     GHz:	primary No: 5.562H
 185     -  190     GHz:	primary No: 5.562H
 191.8   -  200     GHz: primary No: 5.149 5.341 5.554