Frequency bands allocated to the French amateurs
The French radio amateurs are allowed to transmit only on certain ranges of frequencies, called amateurs or hams bands.
These bands slighty differ from one country to another, but generally follow the UIT recommendations on the matter.
Following tables indicate the bands allocated in Metropolitan France. These frequencies were published in the Official Journal of March 13, 1998 page 3788.
Let us repeat that citizen's band or 27 MHz is not an amateur band, and is not used by the French radio hams.
Decametric bands
Lower frequency | Higher frequency | Wavelength |
1,810 MHz | 1,850 MHz | 160 m |
3,500 MHz | 3,800 MHz | 80 m |
7,000 MHz | 7,200 MHz | 40 m |
10,100 MHz | 10,150 MHz | 30 m |
14,000 MHz | 14,350 MHz | 20 m |
18,068 MHz | 18,168 MHz | 16 m |
21,000 MHz | 21,450 MHz | 15 m |
24,890 MHz | 24,990 MHz | 12 m |
28,000 MHz | 29,700 MHz | 10 m |
Metric and decimetric bands
Lower frequency | Higher frequency | Wavelength |
50,2 MHz | 51,2 MHz | 6 m |
144,000 MHz | 146,000 MHz | 2m |
430,000 MHz | 440,000 MHz | 70 cm |
1240,000MHz | 1300,000 MHz | 24 cm |
2300,000 MHz | 2450,000 MHz | 13 cm |
Centimetric and millimetric bands
Lower frequency | Higher frequency | Wavelength |
5,650,GHz | 5,850 GHz | 5 cm |
10,000 GHz | 10,500 GHz | 3 cm |
24,000 GHz | 24,250 GHz | 1,2 cm |
47,000 GHz | 47,200 GHz | 6 mm |
75,500 GHz | 81,000 GHz | 3,75 mm |
119,980 GHz | 120,000 GHz | 2,5 mm |
142,000 GHz | 149,000 GHz | 2 mm |
241,000 GHz | 250,000 GHz | 1,2 mm |
The propagation of a wave is very dependent on its frequency, the amateurs bands thus make it possible to benefit from all the possibilities since they are regularly distributed on the whole spectrum, from the 1,8 MHz which is close to the frequencies of the broadcasting stations to the 241 000 MHz where the propagation is rather similar to that of the light.
The types of modulation usable on these frequencies are also regulated, but practically all the possibilities are allowed to us.
For those which do not know the emission of amateur, see:
Propagation types of modulations types of traffic organizations
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