Committee on Radio Astronomy Frequencies

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


Definition:

Fixed-Satellite Service: A radiocommunication service between earth stations at specified fixed points when one or more satellites are used; in some cases this service includes satellite-to-satellite links, which may also be effected in the inter-satellite service, the fixed-satellite service may also include feeder links for other space radiocommunication services.



ITU Radio Regulations allocations for Region 1:

3400     - 3600     MHz:	primary (space-to-Earth) No: 5.431 5.434
3600     - 4200     MHz:	primary (space-to-Earth)    
4500     - 4800     MHz:	primary (space-to-Earth) No: 5.441
5150     - 5250     MHz:	primary (Earth-to-space) No: 5.446 5.447 5.447A 5.447B 5.447C
5725     - 5830     MHz:	primary (Earth-to-space) No: 5.150 5.451 5.453 5.455 5.456
5830     - 5850     MHz:	primary (Earth-to-space) No: 5.150 5.451 5.453 5.455 5.456
5850     - 5925     MHz:	primary (Earth-to-space) No: 5.150
5925     - 6700     MHz:	primary (Earth-to-space) No: 5.149 5.440 5.457A 5.457B 5.458
6700     - 7075     MHz:	primary (Earth-to-space)(space-to-Earth) No: 5.441 5.458 5.458A 5.458B 5.458C
7250     - 7300     MHz:	primary (space-to-Earth) No: 5.461
7300     - 7450     MHz:	primary (space-to-Earth) No: 5.461
7450     - 7550     MHz:	primary (space-to-Earth) No: 5.461A
7550     - 7750     MHz:	primary (space-to-Earth) 
7900     - 8025     MHz:	primary (Earth-to-space) No: 5.461
8025     - 8175     MHz:	primary (Earth-to-space) No: 5.462A
8175     - 8215     MHz:	primary (Earth-to-space) No: 5.462A
8215     - 8400     MHz:	primary (Earth-to-space) No: 5.462A
  10.7   -   11.7   GHz:	primary (Earth-to-space)(space-to-Earth) No: 5.441 5.484 5.484A
  12.5   -   12.75  GHz:	primary (Earth-to-space)(space-to-Earth) No: 5.484A 5.494 5.495 5.496
  12.75  -   13.25  GHz:	primary (Earth-to-space) No: 5.441
  13.75  -   14     GHz:	primary (Earth-to-space) No: 5.484A 5.499 5.500 5.501 5.502 5.503
  14     -   14.25  GHz:	primary (Earth-to-space) No: 5.457A 5.457B 5.484A 5.505 5.506 5.506B
  14.25  -   14.3   GHz:	primary (Earth-to-space) No: 5.457A 5.457B 5.484A 5.504A 5.505 5.506 5.506B 5.508 5.509
  14.3   -   14.4   GHz:	primary (Earth-to-space) No: 5.457A 5.457B 5.484A 5.504A 5.506 5.506B
  14.4   -   14.47  GHz:	primary (Earth-to-space) No: 5.457A 5.457B 5.484A 5.504A 5.506 5.506B
  14.47  -   14.5   GHz:	primary (Earth-to-space) No: 5.149 5.457A 5.457B 5.484A 5.504A 5.506 5.506B  
  14.5   -   14.8   GHz:	primary (Earth-to-space) No: 5.510
  15.43  -   15.63  GHz:	primary (space-to-Earth)(Earth-to-space) No: 5.511A 5.511C
  17.3   -   17.7   GHz:	primary (Earth-to-space)(space-to-Earth) No: 5.514 5.516 5.516A 5.516B
  17.7   -   18.1   GHz:	primary (Earth-to-space)(space-to-Earth) No: 5.516
  18.1   -   18.4   GHz:	primary (Earth-to-space)(space-to-Earth) No: 5.484A 5.516B 5.519 5.520 5.521
  18.4   -   18.6   GHz:	primary (space-to-Earth) No: 5.526B 5.484A
  18.6   -   18.8   GHz:	primary (space-to-Earth) No: 5.522A 5.522B 5.522C
  18.8   -   19.3   GHz:	primary (space-to-Earth) No: 5.523A 5.516B
  19.3   -   19.7   GHz:	primary (Earth-to-space)(space-to-Earth) No: 5.523B 5.523C 5.523D 5.523E
  19.7   -   20.1   GHz:	primary (space-to-Earth) No: 5.516B 5.524 5.484A 
  20.1   -   20.2   GHz:	primary (space-to-Earth) No: 5.516B 5.524 5.525 5.526 5.527 5.528 5.484A 
  20.2   -   21.2   GHz:	primary (space-to-Earth) No: 5.524
  27.5   -   28.5   GHz:	primary (Earth-to-space) No: 5.516B 5.538 5.539 5.540 5.484A   
  28.5   -   29.1   GHz:	primary (Earth-to-space) No: 5.516B 5.523A 5.539 5.540 5.484A 
  29.1   -   29.5   GHz:	primary (Earth-to-space) No: 5.516B 5.523C 5.523E 5.535A 5.539 5.540 5.541A
  29.5   -   29.9   GHz:	primary (Earth-to-space) No: 5.516B 5.539 5.540 5.542 5.484A 
  29.9   -   30     GHz:	primary (Earth-to-space) No: 5.516B 5.525 5.526 5.527 5.538 5.539 5.540 5.542 5.484A 
  30     -   31     GHz:	primary (Earth-to-space) No: 5.542
  37.5   -   38     GHz:	primary (space-to-Earth) No: 5.547
  38     -   39.5   GHz:	primary (space-to-Earth) No: 5.547
  39.5   -   40     GHz:	primary (space-to-Earth) No: 5.516B 5.547
  40     -   40.5   GHz:	primary (space-to-Earth) No: 5.516B
  40.5   -   41     GHz:	primary (space-to-Earth) No: 5.547
  41     -   42.5   GHz:	primary (space-to-Earth) No: 5.516B 5.547 5.551F 5.551H 5.551I
  42.5   -   43.5   GHz:	primary (Earth-to-space) No: 5.149 5.547 5.552
  47.2   -   47.5   GHz:	primary (Earth-to-space) No: 5.552 5.552A
  47.5   -   47.9   GHz:	primary (Earth-to-space)(space-to-Earth) No: 5.516B 5.552
  47.9   -   48.2   GHz:	primary (Earth-to-space) No: 5.552 5.552A
  48.2   -   48.54  GHz:	primary (Earth-to-space)(space-to-Earth) No: 5.516B 5.552 5.554A 5.555A
  48.54  -   49.44  GHz:	primary No: 5.149 5.340 5.552 5.555
  49.44  -   50.2   GHz:	primary (Earth-to-space)(space-to-Earth) No: 5.516B 5.552 5.554A 5.555A
  50.4   -   51.4   GHz:	primary (Earth-to-space)
  71     -   74     GHz:	primary (Earth-to-space) No: 5.149 5.556
  71     -   74     GHz:	primary (space-to-Earth)
  74     -   75.5   GHz:	primary (space-to-Earth) No: 5.561
  75.5   -   76     GHz:	primary (space-to-Earth) No: 5.561 5.559A
  81     -   84     GHz:	primary (Earth-to-space) No: 5.149 5.560A
  84     -   86     GHz:	primary (Earth-to-space) No: 5.149 5.561A
  92     -   95     GHz:	primary (Earth-to-space) No: 5.149 5.556
 102     -  105     GHz:	primary (space-to-Earth) No: 5.341
 123     -  126     GHz:	primary (space-to-Earth) 5.554
 126     -  130     GHz:	primary (spaceto-Earth) No: 5.149 5.554
 158.5   -  164     GHz:	primary (space-to-Earth)
 167     -  168     GHz:	primary (space-to-Earth)
 168     -  170     GHz:	primary (space-to-Earth) No: 5.149
 170     -  174.5   GHz:	primary (space-to-Earth) No: 5.149 5.562D
 209     -  217     GHz:	primary (Earth-to-space) No: 5.149 5.341
 217     -  226     GHz:	primary (Earth-to-space) No: 5.149 5.341
 232     -  235     GHz:	primary (space-to-Earth)
 235     -  238     GHz:	primary (space-to-Earth) No: 5.563A 5.563B
 238     -  240     GHz:	primary (space-to-Earth)  
 265     -  275     GHz:	primary (Earth-to-space) No: 5.149 5.563A


  • CRAF observes (potential) pressure to the Radio Astronomy Service in the frequency bands:


    Last modified: March 11, 2005