Detail of Frequency Band

Band reserved for non-civil utilisation. If civil utilisation is also stated with priority, the band is being used equally with civil utilisation on the basis of coordination.

Non-civil stations can use the band with subsidiarity to civil ones (which use the band with priority), but must not interfere and do not have rihgt to protection against interference by civil utilisation.

Non-civil stations cannot use the band.

Band reserved for civil utilisation. If non-civil utilisation is also stated with priority, the band is being used equally with non-civil utilisation on the basis of coordination.

Civil stations can use the band with subsidiarity to non-civil ones (which use the band with priority), but must not interfere and do not have rihgt to protection against interference by non-civil utilisation.

Civil stations cannot use the band.

In making assignments to stations of other services to which the bands
13 360 – 13 410 kHz, 4 950 – 4 990 MHz, 102 – 109,5 GHz,
25 550 – 25 670 kHz, 4 990 – 5 000 MHz, 111,8 – 114,25 GHz,
37,5 – 38,25 MHz, 6 650 – 6 675,2 MHz, 128,33 – 128,59 GHz,
73 – 74,6 MHz in Regions 1 and 3, 10,6 – 10,68 GHz, 129,23 – 129,49 GHz,
150,05 – 153 MHz in Region 1, 14,47 – 14,5 GHz, 130 – 134 GHz,
322 – 328,6 MHz, 22,01 – 22,21 GHz, 136 – 148,5 GHz,
406,1 – 410 MHz, 22,21 – 22,5 GHz, 151,5 – 158,5 GHz,
608 – 614 MHz in Regions 1 and 3, 22,81 – 22,86 GHz, 168,59 – 168,93 GHz,
1 330 – 1 400 MHz, 23,07 – 23,12 GHz, 171,11 – 171,45 GHz,
1 610,6 – 1 613,8 MHz, 31,2 – 31,3 GHz, 172,31 – 172,65 GHz,
1 660 – 1 670 MHz, 31,5 – 31,8 GHz in Regions 1 and 3, 173,52 – 173,85 GHz,
1 718,8 – 1 722,2 MHz, 36,43 – 36,5 GHz, 195,75 – 196,15 GHz,
2 655 – 2 690 MHz, 42,5 – 43,5 GHz, 209 – 226 GHz,
3 260 – 3267 MHz, 48,94 – 49,04 GHz, 241 – 250 GHz a
3 332 – 3 339 MHz, 76 – 86 GHz, 252 – 275 GHz,
3 345,8 – 3 352,5 MHz, 92 – 94 GHz,
4 825 – 4 835 MHz, 94,1 – 100 GHz,
are allocated, administrations are urged to take all practicable steps to protect the radio astronomy service from harmful interference. Emissions from spaceborne or airborne stations can be particularly serious sources of interference to the radio astronomy service (see Nos. 4.5 and 4.6 and Article 29 of RR).

In the bands 1 400 – 1 727 MHz, 101 – 120 GHz and 197 – 220 GHz, passive research is being conducted by some countries in a programme for the search for intentional emissions of extraterrestrial origin.

Administrations are urged to give all practicable protection in the band 1 660.5 – 1 668.4 MHz for future research in radio astronomy, particularly by eliminating air-to-ground transmissions in the meteorological aids service in the band 1 664.4 – 1 668.4 MHz as soon as practicable.