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.

For the use of the bands 1 518 – 1 544 MHz, 1 545 – 1 559 MHz, 1 610 – 1 645.5 MHz, 1 646.5 –1 660.5 MHz, 1 668 – 1 675 MHz, 1 980 – 2 010 MHz, 2 170 – 2 200 MHz, 2 483.5 – 2 520 MHz and 2 670 – 2 690 MHz by the mobile-satellite service, see Resolutions 212 and 225.

The use of the band 1 668 – 1 675 MHz by the mobile-satellite service is subject to coordination under No. 9.11A of RR. In the band 1 668-1 668.4 MHz, Resolution 904 shall apply.

In order to protect the radio astronomy service in the band 1 668 – 1 670 MHz, the aggregate power flux-density values produced by mobile earth stations in a network of the mobile-satellite service operating in this band shall not exceed –181 dB(W/m2) in 10 MHz and ?194 dB(W/m2) in any 20 kHz at any radio astronomy station recorded in the Master International Frequency Register, for more than 2% of integration periods of 2 000 s.